Details of the Researcher

PHOTO

Tadashi Furuhara
Section
Institute for Materials Research
Job title
Professor
Degree
  • Ph.D(金属工学・材料科学)(米国カーネギーメロン大学)

  • 工学修士(京都大学)

e-Rad No.
50221560
Researcher ID

Research History 8

  • 2005/10 - Present
    Tohoku University Institute for Materials Research

  • 2022/04 - 2025/03
    Osaka Metropolitan University Graduate School of Engineering

  • 2012/04 - 2022/03
    Kyoto University

  • 2008/04 - 2022/03
    Osaka Prefecture University

  • 2019/05 - 2020/03
    物質・材料研究機構 構造材料研究拠点 招聘研究員

  • 2011/04 - 2012/03
    Osaka University Joining and Welding Research Institute

  • 1997/08 - 2005/09
    Kyoto University Graduate School of Engineering, Deprtment of Materical Science and Engineering

  • 1989/10 - 1997/07
    Kyoto University Faculty of Engineering

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Education 3

  • Carnegie Mellon University Graduate School, Division of Engineering Department of Metallurgical Engineering and Materials Science

    - 1989/09

  • Kyoto University Graduate School, Division of Engineering Department of Metal Science and Technology

    - 1985/03

  • Kyoto University Faculty of Engineering Department of Metal Science and Technology

    - 1983/03

Committee Memberships 35

  • 日本熱処理技術協会 理事

    2018/04 - Present

  • The Minerals, Metals & Materials Society Member、Steel Committee

    2017/01 - Present

  • Editor, Acta/Scripta Materialia (Elsevier) Editorial Boards

    2017/01 - Present

  • 日本熱処理技術協会 評議員

    2009/04 - Present

  • 日本鉄鋼協会 評議員

    2005/04 - Present

  • The Minerals, Metals & Materials Society / ASM International Member, Phase Transformations Committee

    2002/03 - Present

  • 日本鉄鋼協会 会長

    2022/04 - 2024/04

  • 日本鉄鋼協会 理事

    2022/04 - 2024/04

  • 日本金属学会 理事

    2020/04 - 2021/04

  • 日本鉄鋼協会 副会長・学会部門長

    2018/04 - 2020/04

  • 日本鉄鋼協会 理事

    2016/04 - 2020/04

  • 日本鉄鋼協会 学会部門 材料の組織と特性部会 部会長

    2016/04 - 2018/04

  • 日本鉄鋼協会 論文誌編集委員会幹事

    2013/04 - 2017/03

  • Metallurgical and Materials Transactions A Member, Board of Review

    2000/01 - 2016/12

  • 日本金属学会 東北支部長

    2014/04 - 2015/04

  • 日本金属学会 分科会委員長

    2014/04 - 2015/03

  • 日本金属学会 副会長

    2013/04 - 2015/03

  • 日本金属学会 理事

    2011/04 - 2015/03

  • 日本鉄鋼協会 理事

    2012/04 - 2014/04

  • 日本鉄鋼協会 講演大会協議会議長

    2012/04 - 2014/04

  • 日本金属学会 会報編集委員長

    2013/04 - 2014/03

  • 日本金属学会 講演大会委員長

    2013/04 - 2014/03

  • 日本金属学会分科会 第5分科委員長

    2011/04 - 2013/03

  • 日本金属学会 分科会委員(第5分科)

    2005/04 - 2013/03

  • 日本金属学会 論文誌編集委員

    1999/04 - 2013/03

  • Materials Science and Engineering A (Elsevier) Editorial Boards

    2007/01 - 2013/01

  • 日本金属学会 第5分科副委員長

    2009/04 - 2011/03

  • 日本金属学会 セミナー・シンポジウム委員会委員長

    2009/04 - 2011/03

  • 日本金属学会 理事

    2008/04 - 2010/03

  • 日本金属学会 セミナー・シンポジウム委員会副委員長

    2007/04 - 2009/03

  • The Minerals, Metals & Materials Society / ASM International Chairman, Phase Transformations Committee

    2006/03 - 2008/03

  • 日本鉄鋼協会 鉄鋼工学セミナー材料・圧延コースGrリーダー・講師

    2005/10 - 2007/09

  • (独)物質・材料研究機構 金属・基礎物性データベース検討会委員

    2005/04 - 2007/03

  • The Iron and Steel Institute of Japan Editorial Board, ISIJ International

    1999/04 - 2003/03

  • 日本鉄鋼協会 論文誌編集委員

    1999/04 - 2003/03

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Professional Memberships 5

  • The Japan Society for Heat Treatment

  • The ASM International Foundation

  • The Minerals, Metals & Materials Society

  • The Japan Institute of Metals

  • The Iron and Steel Institute of Japan

Research Interests 3

  • Steel

  • Structural Metallic Materials

  • Microstructure

Research Areas 3

  • Nanotechnology/Materials / Material fabrication and microstructure control /

  • Nanotechnology/Materials / Structural and functional materials /

  • Nanotechnology/Materials / Metallic materials /

Awards 32

  1. Best Paper Award

    2025/05 The Japan Society for Heat Treatment Friction and Wear Characteristics of Gaseous-nitrided Ferritic Alloys

  2. 2025 Howe Memorial Lecture Award

    2025/05 Association for Iron & Steel Technology In recognition of his distinguished 30-year career in physical metallurgy

  3. TMS Fellow Award

    2025/03 The Minerals, Metals and Materials Society For seminal contributions to the physical metallurgy of steels and other alloys for controlling microstructures through phase transformations and recrystallization

  4. IFHTSE Medal

    2024/01 International Federation for Heat Treatment and Surface Engineering For his life-time achievement in the physical metallurgy of diffusional and displacive phase transformations in steels and titanium alloys and advanced microstructure characterization with electron microscopy techniques.

  5. 村上記念賞

    2023/09 日本金属学会

  6. 科学技術分野の文部科学大臣表彰(研究部門)

    2023/04 文部科学省 元素機能に基づく鉄鋼材料の階層構造制御と高強度化の研究

  7. The Hillert-Cahn Award

    2022/06 The 8th International Conference on Solid→Solid Phase Transformations in Inorganic Materials

  8. Vanadium Award

    2022/05 Institute of Materials, Minerals and Mining

  9. 金属組織写真賞 奨励賞

    2021/03 日本金属学会 Nb添加鋼の相界面で重畳した偏析と析出の3DAP観察

  10. Best Paper Award

    2020/06 The Japan Society for Heat Treatment Effects of Alloying Elements on Microstructure, Hardness and Growth Rate of Compound Layer in Gaseous-nitrided Ferritic Alloys

  11. 学術功績賞

    2020/03 日本鉄鋼協会

  12. Distinguished Award

    2018/07 THERMEC’2018

  13. 口絵写真賞

    2018/05 日本熱処理技術協会

  14. Academic achievement award

    2017/06 The Japan Society for Heat Treatment

  15. Sawamura best paper award

    2017/03 Iron and Steel Institute of Japan

  16. Vanadium Award

    2016/07 Institute of Materials, Menerals and Mining

  17. The Tanikawa-Harris Award

    2015/03 The Japan Institute of Metals and Materials

  18. 澤村論文賞

    2014/03 日本鉄鋼協会

  19. 日本金属学会金属組織写真賞優秀賞

    2010/03/28 日本金属学会

  20. Excellent paper award, Japan Society of Spring Engineers

    2009/11/05 日本ばね学会

  21. Best Paper Award, Japan Institute of Metals

    2009/09/15 日本金属学会

  22. Sawamura Best Paper Award, The Iron and Steel Institute of Japan

    2008/03/26 (社)日本鉄鋼協会

  23. Technical Award

    2006/10 The Japan Titaium Society

  24. Vanadium Award, Institute of Materials, Menerals and Mining

    2005/06 Institute of Materials, Menerals and Mining

  25. Sawamura Best Paper Award, The Iron and Steel Institute of Japan

    2004/03 日本鉄鋼協会

  26. The Japan Institute of Metals Meritorious Honor Award

    2002/10 日本金属学会

  27. Best Paper Award, Japan Institute of Metals

    2000/10 日本金属学会

  28. Murakami Young Scientist Award, Murakami Memorials Foundation

    2000/05 村上記念会

  29. Nishiyama Memorial Award

    2000/03 The Iron and Steel Institute of Japan

  30. Best Paper Award, Japan Institute of Metals

    1995/12 日本金属学会

  31. Tawara Best Paper Award, The Iron and Steel Institute of Japan

    1995/11 日本鉄鋼協会

  32. Young Scientist Award, Japan Institute of Metals

    1992/10 日本金属学会

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Papers 378

  1. On the formation mechanism of hierarchical inter- and intragranular precipitations in a cast cu-17Ni-3Al-based alloy

    Weiwen Zhang, Rui Zhong, Yongjie Zhang, Tadashi Furuhara, Boning Zhang, Geng Liu, Lehua Liu, Haokai Dong

    Materials Characterization 114729-114729 2025/01

    Publisher: Elsevier BV

    DOI: 10.1016/j.matchar.2025.114729  

    ISSN: 1044-5803

  2. Curiosity in research on martensite and bainite Invited Peer-reviewed

    Tadashi Furuhara, Goro Miyamoto

    Proceedings of International Symposia on Steel Science 2024 11-18 2024/11

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijisss.2024.0_11  

    eISSN: 2759-6621

  3. Grain boundary nanochemistry and intergranular corrosion of Fe-0.01wt.%P alloy: Roles of elemental segregations and misorientation

    Saya Ajito, Kazuya Tojima, Hiroshi Kakinuma, Kohei Ikeda, Yongjie Zhang, Tomohiko Hojo, Goro Miyamoto, Motomichi Koyama, Tadashi Furuhara, Eiji Akiyama

    Acta Materialia 120577-120577 2024/11

    Publisher: Elsevier BV

    DOI: 10.1016/j.actamat.2024.120577  

    ISSN: 1359-6454

  4. Influence of austenitizing temperature on acicular ferrite formation on Ti-Rare Earth Metal (REM)-Zr oxide in low carbon steel

    Hidenori Nako, Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Proceedings of International Symposia on Steel Science 2024 225-228 2024/11

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijisss.2024.0_225  

    eISSN: 2759-6621

  5. Enhancing prior austenite grain boundary coherency by introducing partial bainite in martensitic steel Peer-reviewed

    Ji Hoon Kim, Goro Miyamoto, Akinobu Shibata, Tomohiko Hojo, Motomichi Koyama, Yongjie Zhang, Tadashi Furuhara

    Proceedings of International Symposia on Steel Science 2024 169-172 2024/11

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijisss.2024.0_169  

    eISSN: 2759-6621

  6. In-situ characterization of tempering behaviors and alloying effects on tempering kinetics in high-carbon martensitic steels

    Yongjie Zhang, Satoshi Morooka, Wu Gong, Stefanus Harjo, Goro Miyamoto, Tadashi Furuhara

    Proceedings of International Symposia on Steel Science 2024 81-87 2024/11

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijisss.2024.0_81  

    eISSN: 2759-6621

  7. Enhancing ductility of the TRIP aided bainitic ferrite steel by Mn heterogeneity introduced via reversion: Towards the 3rd generation

    Jianhao Yan, Xianguang Zhang, Huan Liu, Goro Miyamoto, Zhanmin Cao, Yongjie Zhang, Yiwu Pei, Peng Shi, Jiajun Chen, Tadashi Furuhara

    Scripta Materialia 252 2024/11/01

    DOI: 10.1016/j.scriptamat.2024.116241  

    ISSN: 1359-6462

  8. Friction and Wear Characteristics of Gaseous-nitrided Ferritic Alloys Peer-reviewed

    Fanhui MENG, Goro MIYAMOTO, Tadashi FURUHARA

    NETSUSHORI 64 (4) 193-202 2024/08

  9. Determining Factors of Grain Size in Bainite Structure of Fe–2Mn–C Alloys

    Tadashi Furuhara, Takeshi Kaneshita, Goro Miyamoto

    Steel Research International 95 (8) 2024/08

    DOI: 10.1002/srin.202400148  

    ISSN: 1611-3683

    eISSN: 1869-344X

  10. Grain boundary character dependence of phosphorus segregation at ferrite grain boundaries in a high-purity iron-phosphorus binary alloy

    Yongjie Zhang, Kohei Ikeda, Shigeki Kitsuya, Goro Miyamoto, Tadashi Furuhara

    Scripta Materialia 249 2024/08/01

    DOI: 10.1016/j.scriptamat.2024.116170  

    ISSN: 1359-6462

  11. Pearlite Growth Kinetics in Fe-C-Mn Eutectoid Steels: Quantitative Evaluation of Energy Dissipation at Pearlite Growth Front Via Experimental Approaches

    Y.-J. Zhang, T. Umeda, S. Morooka, S. Harjo, G. Miyamoto, T. Furuhara

    Metallurgical and Materials Transactions A 55 (10) 3921-3936 2024/07/27

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1007/s11661-024-07518-1  

    ISSN: 1073-5623

    eISSN: 1543-1940

    More details Close

    Abstract Essential understanding of the pearlite growth kinetics is of great significance to predict the lamellar spacing and the resultant mechanical properties of pearlitic steels. In this study, a series of eutectoid steels with Mn addition up to 2 mass pct were isothermally transformed at various temperatures from 873 K to 973 K to clarify the pearlite growth kinetics and the underlying thermodynamics at its growth front. The microscopic observation indicates the acceleration in pearlite growth rate and refinement in lamellar spacing by decreasing the transformation temperature or the amount of Mn addition. After analyzing the solute distribution at pearlite growth front via three-dimensional atom probe, no macroscopic Mn partitioning across pearlite/austenite interface is detected, whereas Mn segregation is only observed at ferrite/austenite interface. Furthermore, in-situ neutron diffraction measurements performed at elevated temperatures reveal that the magnitude of elastic strain generated during pearlite transformation is very small. Based on the thermodynamic model, these experimental results are used to estimate the contribution of various factors to the total energy dissipation. Compared with the Mn-free alloy, the retardation effect of Mn addition on pearlite growth kinetics, which is partly due to the reduced driving force for pearlite growth, can be well explained by further considering the solute drag effect of Mn.

  12. Atomic-scale understanding of twin intersection rotation and ε-martensite transformation in a high Mn twinning-induced plasticity steel

    Jun Chen, Song Lu, Zi yong Hou, Wen wen Song, Zhen yu Liu, Guo dong Wang, Tadashi Furuhara

    Acta Materialia 271 2024/06/01

    DOI: 10.1016/j.actamat.2024.119832  

    ISSN: 1359-6454

  13. Quantitative analysis of microstructure evolution, stress partitioning and thermodynamics in the dynamic transformation of Fe-14Ni alloy Peer-reviewed

    Lian Li, Goro Miyamoto, Yongjie Zhang, Miaoquan Li, Satoshi Morooka, Katsunari Oikawa, Yo Tomota, Tadashi Furuhara

    Journal of Materials Science and Technology 184 221-234 2024/06

    Publisher: Elsevier BV

    DOI: 10.1016/j.jmst.2023.10.037  

    ISSN: 1005-0302

  14. Influence of austenite grain boundary misorientation on hydrogen-induced intergranular crack propagation in a medium carbon martensitic steel

    Ji Hoon Kim, Goro Miyamoto, Akinobu Shibata, Tomohiko Hojo, Motomichi Koyama, Yongjie Zhang, Tadashi Furuhara

    Acta Materialia 274 120036-120036 2024/05

    Publisher: Elsevier BV

    DOI: 10.1016/j.actamat.2024.120036  

    ISSN: 1359-6454

  15. Reaching unconventionally large Hall-Petch coefficients in face-centered cubic high-entropy alloys

    Jiaxiang Li, Kenta Yamanaka, Yongjie Zhang, Tadashi Furuhara, Guoqin Cao, Junhua Hu, Akihiko Chiba

    Materials Research Letters 12 (6) 399-407 2024/04/07

    Publisher: Informa UK Limited

    DOI: 10.1080/21663831.2024.2337211  

    eISSN: 2166-3831

  16. Effects of Alloying Element on Bainitic Transformation in Fe-0.3N Alloy

    Mitsutaka Sato, Shota Shimaya, Kazuki Hara, Goro Miyamoto, Tadashi Furuhara

    ISIJ International 2024/03/15

    DOI: 10.2355/isijinternational.ISIJINT-2023-414  

  17. Alloying Effects on the Microstructure of Fe-1mass%M Binary Alloys Treated by Austenitic Nitriding and Quenching Treatment

    Hironori Kubo, Goro Miyamoto, Satoshi Tagashira, Tadashi Furuhara

    ISIJ International 64 (2) 226-234 2024/01/30

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2023-260  

    ISSN: 0915-1559

    eISSN: 1347-5460

  18. Multi-aspect Characterization of Low-temperature Tempering Behaviors in High-carbon Martensite Peer-reviewed

    Yongjie Zhang, Kento Marusawa, Kohei Kudo, Satoshi Morooka, Stefanus Harjo, Goro Miyamoto, Tadashi Furuhara

    ISIJ International 64 (2) 245-256 2024/01/30

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2023-251  

    ISSN: 0915-1559

    eISSN: 1347-5460

  19. Thermal Stability of Retained Austenite with Heterogeneous Composition and Size in Austempered Fe-2Mn-1.5Si-0.4C Alloy

    Miku Watanabe, Goro Miyamoto, Yongjie Zhang, Satoshi Morooka, Stefanus Harjo, Yasuhiro Kobayashi, Tadashi Furuhara

    ISIJ International 64 (9) 1464-1476 2024

    DOI: 10.2355/isijinternational.ISIJINT-2024-044  

    ISSN: 0915-1559

  20. On the Evolution of Austenite During Tempering in High-Carbon High-Silicon Bearing Steel by High Energy X-Ray Diffraction Peer-reviewed

    G. G. Ribamar, G. Miyamoto, T. Furuhara, J. D. Escobar, J. A. Ávila, E. Maawad, N. Schell, J. P. Oliveira, H. Goldenstein

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 55 (1) 93-100 2024/01

    DOI: 10.1007/s11661-023-07229-z  

    ISSN: 1073-5623

  21. Transformable nanoprecipitates induced large ductility in a metastable cryogenic steel Peer-reviewed

    Yu Li, Wei Li, Bingjun Wang, Na Min, Wenqing Liu, Huibin Liu, Xuejun Jin, Tadashi Furuhara

    Science Bulletin 68 (12) 1243-1247 2023/06/30

    DOI: 10.1016/j.scib.2023.05.027  

    ISSN: 2095-9273

    eISSN: 2095-9281

  22. High-throughput investigation of Cr-N cluster formation in Fe-35Ni-Cr system during low-temperature nitriding Peer-reviewed

    Yulin Xie, Goro Miyamoto, Tadashi Furuhara

    Acta Materialia 253 118921-118921 2023/04

    Publisher: Elsevier {BV}

    DOI: 10.1016/j.actamat.2023.118921  

    ISSN: 1359-6454

  23. A novel way refining the partially reverted globular austenite in reversion from martensite Peer-reviewed

    Xianguang Zhang, Huan Liu, Yingjie Ren, Wenchao Yang, Jiajun Chen, Peng Shi, Goro Miyamoto, Tadashi Furuhara

    ISIJ International 63 (4) 2023/04

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2022-503  

    ISSN: 0915-1559 1347-5460

  24. Comparison of Solute Nanoclusters in Fe–Cr–N Tempered Martensite Observed by Different Atom Probe Instruments Peer-reviewed

    Yong-Jie Zhang, Shao-Wen Young, Katherine P Rice, Mitsutaka Sato, Goro Miyamoto, Tadashi Furuhara, Tadakatsu Ohkubo, Kazuhiro Hono

    Microscopy and Microanalysis 29 (1) 86-93 2023/02/01

    Publisher: Oxford University Press (OUP)

    DOI: 10.1093/micmic/ozac004  

    ISSN: 1431-9276

    eISSN: 1435-8115

    More details Close

    Abstract The solute clustering behaviors in Fe-1.0mass%Cr-0.3mass%N tempered martensite were comparatively studied by using three atom probe instruments, i.e. LEAP 4000 HR, 5000 XR, and 5000 XS. The microstructural features of nanoclusters were measured under the same conditions in voltage pulse mode, while statistical analysis including nearest neighbor distribution, radial distribution, frequency distribution, and cluster size distribution of Cr atoms were performed on the reconstructed datasets. The results revealed the superior capability of the LEAP 5000 XR to detect Cr nanoclusters in tempered martensite compared with the LEAP 4000 HR as a result of the improvement in detection efficiency and hit detection performance, whereas the high level of background in the mass-to-charge spectrum measured by the LEAP 5000 XS in voltage pulse mode limits its application in the detection of solute nanoclusters.

  25. Heterogeneous segregation behavior of Nb at the stepped migrating interface during phase transformation Peer-reviewed

    Haokai Dong, Yongjie Zhang, Goro Miyamoto, Masahiro Inomoto, Weiwen Zhang, Lehua Liu, Hao Chen, Tadashi Furuhara

    Scripta Materialia 222 115038-115038 2023/01

    Publisher: Elsevier BV

    DOI: 10.1016/j.scriptamat.2022.115038  

    ISSN: 1359-6462

  26. Sublattice alloy design of high-strength steels: Application of clustering and nanoscale precipitation of interstitial and substitutional solutes Invited Peer-reviewed

    Tadashi Furuhara, Yongjie Zhang, Mitsutaka Sato, Goro Miyamoto, Masanori Enoki, Hiroshi Ohtani, Tokuteru Uesugi, Hiroshi Numakura

    Scripta Materialia 223 115063-115063 2023/01

    Publisher: Elsevier {BV}

    DOI: 10.1016/j.scriptamat.2022.115063  

    ISSN: 1359-6462

  27. Three-dimensional Characterisation of Microstructures in Low-carbon Lath Martensite Peer-reviewed

    Shigekazu Morito, Anh Hoang Pham, Taisuke Hayashi, Goro Miyamoto, Tadashi Furuhara

    ISIJ International 62 (10) 1972-1980 2022/10/15

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2022-157  

    ISSN: 0915-1559 1347-5460

  28. Strengthening of Low Carbon Steel by Nano-sized Vanadium Carbide in Ferrite and Tempered Martensite Peer-reviewed

    Yongjie Zhang, Mitsutaka Sato, Goro Miyamoto, Tadashi Furuhara

    ISIJ International 62 (10) 2016-2024 2022/10/15

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/isijinternational.isijint-2022-156  

    ISSN: 0915-1559

    eISSN: 1347-5460

  29. Effect of Deformation Prior to Nitriding on Microstructure and Hardness Behavior in Plasma-Nitrided Ferritic Alloys Peer-reviewed

    Fanhui Meng, Goro Miyamoto, Yoshikazu Todaka, Tadashi Furuhara

    MATERIALS TRANSACTIONS 63 (6) 864-871 2022/06/01

    Publisher: Japan Institute of Metals

    DOI: 10.2320/matertrans.mt-h2021002  

    ISSN: 1345-9678

    eISSN: 1347-5320

  30. Influence of Acicular Ferrite Microstructure on Toughness of Ti-Rare Earth Metal (REM)-Zr Killed Steel Peer-reviewed

    Hidenori Nako, Goro Miyamoto, Yongjie Zhang, Tadashi Furuhara

    Tetsu-to-Hagane 108 (5) 295-305 2022/05

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/tetsutohagane.tetsu-2021-127  

    ISSN: 0021-1575

    eISSN: 1883-2954

  31. Nanosized Cr-N clustering in expanded austenite layer of low temperature plasma-nitrided Fe-35Ni-10Cr alloy Invited Peer-reviewed

    Yulin Xie, Goro Miyamoto, Tadashi Furuhara

    Scripta Materialia 213 2022/05

    DOI: 10.1016/j.scriptamat.2022.114637  

    ISSN: 1359-6462

  32. Enhanced hardening by multiple microalloying in low carbon ferritic steels with interphase precipitation Peer-reviewed

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Scripta Materialia 212 114558-114558 2022/04

    DOI: 10.1016/j.scriptamat.2022.114558  

    ISSN: 1359-6462

  33. Metalloid substitution elevates simultaneously the strength and ductility of face-centered-cubic high-entropy alloys Peer-reviewed

    Daixiu Wei, Liqiang Wang, Yongjie Zhang, Wu Gong, Tomohito Tsuru, Ivan Lobzenko, Jing Jiang, Stefanus Harjo, Takuro Kawasaki, Jae Wung Bae, Wenjun Lu, Zhen Lu, Yuichiro Hayasaka, Takanori Kiguchi, Norihiko L. Okamoto, Tetsu Ichitsubo, Hyoung Seop Kim, Tadashi Furuhara, Evan Ma, Hidemi Kato

    Acta Materialia 225 117571-117571 2022/02/15

    DOI: 10.1016/j.actamat.2021.117571  

    ISSN: 1359-6454

  34. Phase separation with ordering in aged Fe-Ni-Mn medium entropy alloy Peer-reviewed

    Fei Sun, Goro Miyamoto, Yikun Liu, Yuichiro Hayasaka, Tadashi Furuhara

    Acta Materialia 223 117487-117487 2022/01/15

    DOI: 10.1016/j.actamat.2021.117487  

    ISSN: 1359-6454

  35. Hardening Behavior in Diffusion Zone of Fe-Mn and Fe-Cr Binary Alloys Nitrocarburized after Cold Working Peer-reviewed

    Masato Yuya, Goro Miyamoto, Tadashi Furuhara

    ISIJ International 62 (1) 209-217 2022/01

    DOI: 10.2355/isijinternational.ISIJINT-2021-217  

    ISSN: 0915-1559

  36. Improvement of Strength–Ductility Balance by the Simultaneous Increase in Ferrite and Martensite Strength in Dual-Phase Steels Peer-reviewed

    Elango Chandiran, Naoya Kamikawa, Yu Sato, Goro Miyamoto, Tadashi Furuhara

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 52 (12) 5394-5408 2021/12

    DOI: 10.1007/s11661-021-06477-1  

    ISSN: 1073-5623

  37. Current Understanding of Microstructure and Properties of Micro-Alloyed Low Carbon Steels Strengthened by Interphase Precipitation of Nano-Sized Alloy Carbides: A Review Invited Peer-reviewed

    Y. J. Zhang, E. Chandiran, H. K. Dong, N. Kamikawa, G. Miyamoto, T. Furuhara

    JOM 73 (11) 3214-3227 2021/11

    DOI: 10.1007/s11837-021-04882-w  

    ISSN: 1047-4838

    eISSN: 1543-1851

  38. Solute cluster-induced precipitation and resultant surface hardening during nitriding of Fe–Al–V alloys Peer-reviewed

    Goro Miyamoto, Yasuhiro Tateyama, Tokuteru Uesugi, Yuichiro Hayasaka, Tadashi Furuhara

    Scripta Materialia 203 114121-114121 2021/10

    DOI: 10.1016/j.scriptamat.2021.114121  

    ISSN: 1359-6462

  39. Unraveling the effects of Nb interface segregation on ferrite transformation kinetics in low carbon steels

    Haokai Dong, Yongjie Zhang, Goro Miyamoto, Masahiro Inomoto, Hao Chen, Zhigang Yang, Tadashi Furuhara

    Acta Materialia 215 117081-117081 2021/08/15

    DOI: 10.1016/j.actamat.2021.117081  

    ISSN: 1359-6454

  40. Effect of Deformation Temperature, Strain Rate, and Strain on the Microstructure Evolution of Ti-17 Alloy Peer-reviewed

    Elango Chandiran, Yuya Nagata, Fei Sun, Goro Miyamoto, Tadashi Furuhara

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 52 (7) 3107-3121 2021/07

    DOI: 10.1007/s11661-021-06305-6  

    ISSN: 1073-5623

  41. Formation of abnormal nodular ferrite with interphase precipitation in a vanadium microalloyed low carbon steel Peer-reviewed

    Zhenqiang Wang, Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Scripta Materialia 198 113823 2021/06

    DOI: 10.1016/j.scriptamat.2021.113823  

    ISSN: 1359-6462

  42. Effects of alloying elements on microstructure, hardness and growth rate of compound layer in gaseous-nitrided ferritic alloys

    Fanhui Meng, Goro Miyamoto, Tadashi Furuhara

    Materials Transactions 62 (5) 596-602 2021/05

    DOI: 10.2320/matertrans.H-M2021807  

    ISSN: 1345-9678

  43. Resistance to temper softening of low carbon martensitic steels by microalloying of V, Nb and Ti

    Yongjie Zhang, Chao Zhao, Mitsutaka Sato, Goro Miyamoto, Tadashi Furuhara

    ISIJ International 61 (5) 1641-1649 2021/05

    DOI: 10.2355/ISIJINTERNATIONAL.ISIJINT-2020-412  

    ISSN: 0915-1559

  44. Role of cementite and retained austenite on austenite reversion from martensite and bainite in Fe-2Mn-1.5Si-0.3C alloy Peer-reviewed

    Xianguang Zhang, Goro Miyamoto, Yuki Toji, Yongjie Zhang, Tadashi Furuhara

    Acta Materialia 209 116772 2021/05/01

    DOI: 10.1016/j.actamat.2021.116772  

    ISSN: 1359-6454

  45. Effect of Alloying Elements on the High-Temperature Tempering of Fe-0.3N Martensite Peer-reviewed

    Shao Wen Young, Mitsutaka Sato, Kazuhiro Yamamitsu, Yusuke Shimada, Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Acta Materialia 206 116612 2021/03

    DOI: 10.1016/j.actamat.2020.116612  

    ISSN: 1359-6454

  46. Erratum: Resistance to temper softening of low carbon martensitic steels by microalloying of V, Nb and Ti (Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan (2020) 106:6 (362-371) DOI: 10.2355/tetsutohagane.TETSU-2019-113)

    Yongjie Zhang, Chao Zhao, Mitsutaka Sato, Goro Miyamoto, Tadashi Furuhara

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 107 (3) 84 2021/03/01

    ISSN: 0021-1575

  47. Effect of strain on microstructural development during uniaxial compression of metastable beta Ti–10V–2Fe–3Al alloy Peer-reviewed

    R. Naseri, G. Casillas, D. R.G. Mitchell, D. G. Savvakin, M. Ahmed, T. Furuhara, E. V. Pereloma

    Materials Science and Engineering A 804 140720 2021/02/15

    DOI: 10.1016/j.msea.2020.140720  

    ISSN: 0921-5093

  48. Crystal Orientation Relationships among Acicular Ferrite, Oxide and the Austenite Matrix in a Steel Weld Metal

    Hidenori Nako, Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Materials Science Forum 1016 1014-1018 2021/01

  49. Ferrite transformation from Fe-0.3N Austenite Peer-reviewed

    Mitsutaka Sato, Takamasa Murata, Shota Shimaya, Goro Miyamoto, Tadashi Furuhara

    ISIJ International 61 (1) 343-349 2021

    DOI: 10.2355/isijinternational.ISIJINT-2020-166  

    ISSN: 0915-1559

  50. Yielding behaviour and Hall­–Petch relationship in ultrafine-grained Al–Mg binary alloys Peer-reviewed

    Naoya Kamikawa, Toyohisa Hirooka, Tadashi Furuhara

    Materials Science and Technology (United Kingdom) 37 (2) 210-223 2021

    DOI: 10.1080/02670836.2021.1885096  

    ISSN: 0267-0836

    eISSN: 1743-2847

  51. Effect of Deformation Prior to Nitriding on Microstructure and Hardness Behavior in Plasma-nitrided Ferritic Alloys Peer-reviewed

    MENG Fanhui, MIYAMOTO Goro, TODAKA Yoshikazu, FURUHARA Tadashi

    NETSUSHORI 60 (6) 239-246 2020/12

    Publisher: The Japan Society for Heat Treatment

    DOI: 10.14940/netsushori.60.239  

    ISSN: 0288-0490

    More details Close

    <p>In order to clarify the effect of deformation prior to nitriding and additive elements on nitriding behavior in pure iron and Fe-M(M=Al, Cr)binary ferritic alloys, which had been deformed by HPT processes, were plasma-nitrided at 843K for 3.6ks, then the microstructure and hardness of them were investigated. It was found that the effects of deformation on hardness of nitriding diffusion zone in pure iron and Fe-1Cr alloy were small. In contrast, the hardness of diffusion zone in Fe-1Al alloy was greatly increased by deformation because deformation promoted the precipitation of AlN more extensively than non-deformed specimen. In addition, deformation resulted in more homogeneous growth of the compound layer with the finer grain size of γ' on the compound layer. This feature was observed most remarkably in Fe-1Al alloy, where needle-like γ' compound layer was formed in the non-deformed specimens.</p>

  52. Microstructure and tensile property of a precipitation strengthened high entropy alloy processed by selective laser melting and post heat treatment Peer-reviewed

    Wei Chih Lin, Yao Jen Chang, Tzu Hou Hsu, Stéphane Gorsse, Fei Sun, Tadashi Furuhara, An Chou Yeh

    Additive Manufacturing 36 2020/12

    DOI: 10.1016/j.addma.2020.101601  

    eISSN: 2214-8604

  53. Comparative Study of VC, NbC, and TiC Interphase Precipitation in Microalloyed Low-carbon Steels Peer-reviewed

    Yongjie Zhang, Goro Miyamoto, Kunio Shinbo, Tadashi Furuhara

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 51 (12) 6149-6158 2020/12

    DOI: 10.1007/s11661-020-06001-x  

    ISSN: 1073-5623

  54. A comparative study on intrinsic mobility of incoherent and semicoherent interfaces during the austenite to ferrite transformation Peer-reviewed

    Haokai Dong, Yongjie Zhang, Goro Miyamoto, Hao Chen, Zhigang Yang, Tadashi Furuhara

    Scripta Materialia 188 59-63 2020/11

    Publisher: Elsevier BV

    DOI: 10.1016/j.scriptamat.2020.07.007  

    ISSN: 1359-6462

  55. Domain structures and the transitional state of ordering in long-period stacking ordered (LPSO) structures in Mg–Al–Gd alloy

    Xin-Fu Gu, Tadashi Furuhara, Leng Chen, Ping Yang

    Scripta Materialia 187 19-23 2020/10/01

    Publisher: Acta Materialia Inc

    DOI: 10.1016/j.scriptamat.2020.05.055  

    ISSN: 1359-6462

  56. 調和組織制御された 0.3mass%炭素鋼の微細組織と機械的性質 Peer-reviewed

    入谷竜平, 堀憲太, 中谷仁, Bhupendra Sharma, 川畑美絵, Guy Dirras, 古原忠, 飴山惠

    鉄と鋼 106 (10) 735-744 2020/10

  57. Natural-mixing guided design of refractory high-entropy alloys with as-cast tensile ductility Peer-reviewed

    Shaolou Wei, Sang Jun Kim, Jiyun Kang, Yong Zhang, Yongjie Zhang, Tadashi Furuhara, Eun Soo Park, Cemal Cem Tasan

    Nature Materials 19 1175-1181 2020/08/24

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1038/s41563-020-0750-4  

    ISSN: 1476-1122

    eISSN: 1476-4660

  58. Resistance to Temper Softening of Low Carbon Martensitic Steels by Microalloying of V, Nb and Ti Peer-reviewed

    Yongjie Zhang, Chao Zhao, Mitsutaka Sato, Goro Miyamoto, Tadashi Furuhara

    Tetsu-to-Hagane 106 (6) 362-371 2020/06

    DOI: 10.2355/tetsutohagane.tetsu-2019-113  

    ISSN: 0021-1575

    eISSN: 1883-2954

  59. Strain self-accommodation during growth of long-period stacking ordered (LPSO) structures in Mg-Zn-Gd alloy International-journal Peer-reviewed

    X. -F Gu, T. Furuhara, T. Kiguchi, T. J. Konno, L. Chen, P. Yang

    Scripta Materiaria 185 25-29 2020/04/07

    DOI: 10.1016/j.scriptamat.2020.04.009  

  60. Chemical boundary engineering: a new route towards lean, ultrastrong yet ductile steel Peer-reviewed

    Ran Ding, Yingjie Yao, Binhan Sun, Geng Liu, Jianguo He, Tong Li, Xinhao Wan, Zongbiao Dai, Dirk Ponge, Dierk Raabe, Chi Zhang, Andy Godfrey, Goro Miyamoto, Tadashi Furuhara, Zhigang Yang, Sybrand van der Zwaag, Hao Chen

    Science Advances 6 (13) eaay1430 2020/03

    DOI: 10.1126/sciadv.aay1430  

    eISSN: 2375-2548

  61. Weak influence of ferrite growth rate and strong influence of driving force on dispersion of VC interphase precipitation in low carbon steels Peer-reviewed

    Y. J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara

    Acta Materialia 186 533-544 2020/03

    DOI: 10.1016/j.actamat.2020.01.025  

    ISSN: 1359-6454

  62. 肌焼鋼の熱間鍛造後の冷却過程における粗大オーステナイトの形成機構 Peer-reviewed

    宮﨑武, 藤松威史, 宮本吾郎, 古原忠

    鉄と鋼 106 (2) 108-120 2020/02

  63. Formation mechanism of coarse austenite grain during hot forging and cooling in case hardening steel Peer-reviewed

    Takeshi Miyazaki, Takeshi Fujimatsu, Goro Miyamoto, Tadashi Furuhara

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 106 (2) 108-120 2020

    DOI: 10.2355/tetsutohagane.TETSU-2019-070  

    ISSN: 0021-1575

  64. Roles of transformation interfaces in the design of advanced high strength steels Peer-reviewed

    Tadashi Furuhara, Yongjie Zhang, Goro Miyamoto

    IOP Conference Series: Materials Science and Engineering 580 (1) 012005 2019/12/09

    DOI: 10.1088/1757-899X/580/1/012005  

    ISSN: 1757-8981

    eISSN: 1757-899X

  65. ガス窒化したフェライト合金の化合物層組織と硬化挙動に及ぼす置換型添加元素の影響 Peer-reviewed

    孟 凡輝,宮本吾郎,古原 忠

    熱処理 59 (6) 336-343 2019/12

  66. Phase transformation mechanisms during Quenching and Partitioning of a ductile cast iron Peer-reviewed

    Arthur S. Nishikawa, Goro Miyamoto, Tadashi Furuhara, André P. Tschiptschin, Hélio Goldenstein

    Acta Materialia 179 1-16 2019/10/15

    DOI: 10.1016/j.actamat.2019.08.001  

    ISSN: 1359-6454

  67. Effect of Ferrite/Martensite Phase Size on Tensile Behavior of Dual-Phase Steels with Nano-Precipitation of Vanadium Carbides Peer-reviewed

    Elango Chandiran, Yu Sato, Naoya Kamikawa, Goro Miyamoto, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 50A (9) 4111-4126 2019/09

    DOI: 10.1007/s11661-019-05353-3  

    ISSN: 1073-5623

    eISSN: 1543-1940

  68. Quantitative analysis of Mo solute drag effect on ferrite and bainite transformations in Fe-0.4C-0.5Mo alloy Peer-reviewed

    Goro Miyamoto, Kentaro Yokoyama, Tadashi Furuhara

    ACTA MATERIALIA 177 187-197 2019/09

    DOI: 10.1016/j.actamat.2019.07.040  

    ISSN: 1359-6454

    eISSN: 1873-2453

  69. Atom Probe Compositional Analysis of Interphase Precipitated Nano-Sized Alloy Carbide in Multiple Microalloyed Low-Carbon Steels Peer-reviewed

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    MICROSCOPY AND MICROANALYSIS 25 (2) 447-453 2019/04

    DOI: 10.1017/S1431927618015374  

    ISSN: 1431-9276

    eISSN: 1435-8115

  70. The effect of β-phase condition on the tensile behaviour in a near-β Ti alloy produced by blended elemental powder metallurgy Peer-reviewed

    R. Naseri, D. R.G. Mitchell, D. G. Savvakin, M. J.B. Nancarrow, T. Furuhara, A. A. Saleh, A. A. Gazder, E. V. Pereloma

    Materials Science and Engineering A 747 232-243 2019/02/18

    DOI: 10.1016/j.msea.2018.12.094  

    ISSN: 0921-5093

  71. Surface Hardening and Precipitation Behaviors in Plasma-nitrided Fe-(2-x) at%Al-x at%Ti Alloys Peer-reviewed

    Meng Zhu, Goro Miyamoto, Tadashi Furuhara

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN 105 (2) 202-211 2019/02

    DOI: 10.2355/tetsutohagane.TETSU-2018-109  

    ISSN: 0021-1575

    eISSN: 1883-2954

  72. Effects of Heating Rate on Formation of Globular and Acicular Austenite during Reversion from Martensite Peer-reviewed

    Xianguang Zhang, Goro Miyamoto, Yuki Toji, Tadashi Furuhara

    METALS 9 (2) 266 2019/02

    DOI: 10.3390/met9020266  

    ISSN: 2075-4701

    eISSN: 2075-4701

  73. Solute Clusters/Enrichment at the Early Stage of Ageing in Mg-Zn-Gd Alloys Studied by Atom Probe Tomography Peer-reviewed

    Gu Xin-Fu, Furuhara Tadashi, Chen Leng, Yang Ping

    ACTA METALLURGICA SINICA-ENGLISH LETTERS 32 (2) 187-193 2019/02

    DOI: 10.1007/s40195-018-0840-3  

    ISSN: 1006-7191

  74. Special Issue on Latest Research and Development of Structural and Functional Titanium-Based Materials PREFACE

    Takayoshi Nakano, Takayuki Narushima, Takao Hanawa, Masato Ueda, Yoko Yamabe-Mitarai, Tadashi Furuhara, Hideki Hosoda, Mitsuo Niinomi

    MATERIALS TRANSACTIONS 60 (9) 1732-1732 2019

    DOI: 10.2320/matertrans.MPR2019906  

    ISSN: 1345-9678

    eISSN: 1347-5320

  75. Strengthening Mechanisms in Ultrafine-Grained and Sub-grained High-Purity Aluminum Peer-reviewed

    Naoya Kamikawa, Taisuke Hirochi, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 50A (1) 234-248 2019/01

    DOI: 10.1007/s11661-018-5007-3  

    ISSN: 1073-5623

  76. Microstructure of reverted austenite in Fe-0.3N martensite

    Mitsutaka Sato, Sou Matsumoto, Goro Miyamoto, Tadashi Furuhara

    SCRIPTA MATERIALIA 156 85-89 2018/11

    DOI: 10.1016/j.scriptamat.2018.07.020  

    ISSN: 1359-6462

  77. Analysis of the interaction between moving alpha/gamma interfaces and interphase precipitated carbides during cyclic phase transformations in a Nb-containing Fe-C-Mn alloy

    Haokai Dong, Hao Chen, Wei Wang, Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara, Chi Zhang, Zhigang Yang, Sybrand van der Zwaag

    ACTA MATERIALIA 158 167-179 2018/10

    DOI: 10.1016/j.actamat.2018.07.052  

    ISSN: 1359-6454

    eISSN: 1873-2453

  78. Three-dimensional atom probe analysis of boron segregation at austenite grain boundary in a low carbon steel - Effects of boundary misorientation and quenching temperature Peer-reviewed

    Goro Miyamoto, Ai Goto, Naoki Takayama, Tadashi Furuhara

    SCRIPTA MATERIALIA 154 168-171 2018/09

    DOI: 10.1016/j.scriptamat.2018.05.046  

    ISSN: 1359-6462

  79. Resistance to Temper Softening of Microalloyed Low Carbon Steels Peer-reviewed

    Y.-J. Zhang, C. Zhao, K. Shinbo, G. Miyamoto, T. Furuhara

    Proceedings of the 5th International Symposium on Steel Science 143-146 2018/08

  80. Growth mode of austenite during reversion from martensite in Fe-2Mn-1.5Si-0.3C alloy: A transition in kinetics and morphology Peer-reviewed

    Xianguang Zhang, Goro Miyamoto, Takeshi Kaneshita, Yasuki Yoshida, Yuki Toji, Tadashi Furuhara

    ACTA MATERIALIA 154 1-13 2018/08

    DOI: 10.1016/j.actamat.2018.05.035  

    ISSN: 1359-6454

    eISSN: 1873-2453

  81. Study on the planar segregation of solute atoms in Mg-Al-Gd alloy Peer-reviewed

    Xin-Fu Gu, Tadashi Furuhara, Leng Chen, Ping Yang

    Scripta Materialia 150 45-49 2018/06/01

    Publisher: Acta Materialia Inc

    DOI: 10.1016/j.scriptamat.2018.02.041  

    ISSN: 1359-6462

  82. Carbon enrichment during ferrite transformation in Fe-Si-C alloys Peer-reviewed

    H. D. Wu, G. Miyamoto, Z. G. Yang, C. Zhang, H. Chen, T. Furuhara

    Acta Materialia 149 68-77 2018/05/01

    Publisher: Acta Materialia Inc

    DOI: 10.1016/j.actamat.2018.02.040  

    ISSN: 1359-6454

  83. On the atomic structure of γ″ phase in Mg-Zn-Gd alloy Peer-reviewed

    Xin-Fu Gu, Tadashi Furuhara, Takanori Kiguchi, Toyohiko J. Konno, Leng Chen, Ping Yang

    Scripta Materialia 146 64-67 2018/03/15

    Publisher: Acta Materialia Inc

    DOI: 10.1016/j.scriptamat.2017.11.015  

    ISSN: 1359-6462

  84. Incomplete Bainite Transformation Accompanied with Cementite Precipitation in Fe-1.5(3.0)%Si-0.4%C Alloys Peer-reviewed

    Wu Huidong, Goro Miyamoto, Yang Zhigang, Zhang Chi, Chen Hao, Tadashi Furuhara

    ACTA METALLURGICA SINICA 54 (3) 367-376 2018/03

    DOI: 10.11900/0412.1961.2017.00262  

    ISSN: 0412-1961

  85. Chemistry and three-dimensional morphology of martensite-austenite constituent in the bainite structure of low-carbon low-alloy steels Peer-reviewed

    N. Takayama, G. Miyamoto, T. Furuhara

    Acta Materialia 145 154-164 2018/02/15

    Publisher: Acta Materialia Inc

    DOI: 10.1016/j.actamat.2017.11.036  

    ISSN: 1359-6454

  86. Microstructure evolution during austenite reversion in Fe-Ni martensitic alloys Peer-reviewed

    H. Shirazi, G. Miyamoto, S. Hossein Nedjad, T. Chiba, M. Nili Ahmadabadi, T. Furuhara

    Acta Materialia 144 269-280 2018/02/01

    Publisher: Acta Materialia Inc

    DOI: 10.1016/j.actamat.2017.10.068  

    ISSN: 1359-6454

  87. Orientation of austenite reverted from martensite in Fe-2Mn-1.5Si-0.3C alloy Peer-reviewed

    Xianguang Zhang, Goro Miyamoto, Yuki Toji, Shoichi Nambu, Toshihiko Koseki, Tadashi Furuhara

    ACTA MATERIALIA 144 601-612 2018/02

    DOI: 10.1016/j.actamat.2017.11.003  

    ISSN: 1359-6454

    eISSN: 1873-2453

  88. Randomization of Ferrite/austenite Orientation Relationship and Resultant Hardness Increment by Nitrogen Addition in Vanadium-microalloyed Low Carbon Steels Strengthened by Interphase Precipitation Peer-reviewed

    Yongjie Zhang, Kunio Shinbo, Takahito Ohmura, Takuya Suzuki, Kaneaki Tsuzaki, Goro Miyamoto, Tadashi Furuhara

    ISIJ INTERNATIONAL 58 (3) 542-550 2018

    DOI: 10.2355/isijinternational.ISIJINT-2017-537  

    ISSN: 0915-1559

    eISSN: 1347-5460

  89. Anisotropic Ferrite Growth and Substructure Formation during Bainite Transformation in Fe-9Ni-C Alloys: In-Situ Measurement Peer-reviewed

    Tadashi Furuhara, Shin-ya Abe, Goro Miyamoto

    MATERIALS TRANSACTIONS 59 (2) 214-223 2018

    DOI: 10.2320/matertrans.MC201714  

    ISSN: 1345-9678

    eISSN: 1347-5320

  90. Three-dimensional observations of morphology of low-angle boundaries in ultra-low carbon lath martensite Peer-reviewed

    Shigekazu Morito, Anh Hoang Pham, Takuya Ohba, Taisuke Hayashi, Tadashi Furuhara, Goro Miyamoto

    MICROSCOPY 66 (6) 380-387 2017/12

    DOI: 10.1093/jmicro/dfx027  

    ISSN: 2050-5698

    eISSN: 2050-5701

  91. Grain Refinement by Cyclic Displacive Forward/Reverse Transformation in Fe-High-Ni Alloys (vol 48, pg 4204, 2017) Peer-reviewed

    Tadachika Chiba, Hassan Shirazi, Goro Miyamoto, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 48A (9) 4423-4423 2017/09

    DOI: 10.1007/s11661-017-4183-x  

    ISSN: 1073-5623

    eISSN: 1543-1940

  92. Grain Refinement by Cyclic Displacive Forward/Reverse Transformation in Fe-High-Ni Alloys Peer-reviewed

    Tadachika Chiba, Hassan Shirazi, Goro Miyamoto, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 48A (9) 4204-4210 2017/09

    DOI: 10.1007/s11661-017-4152-4  

    ISSN: 1073-5623

    eISSN: 1543-1940

  93. A quantitative investigation of the effect of Mn segregation on microstructural properties of quenching and partitioning steels Peer-reviewed

    Farideh HajyAkbary, Jilt Sietsma, Roumen H. Petrov, Goro Miyamoto, Tadashi Furuhara, Maria Jesus Santofimia

    SCRIPTA MATERIALIA 137 27-30 2017/08

    DOI: 10.1016/j.scriptamat.2017.04.040  

    ISSN: 1359-6462

  94. Incomplete bainite transformation in Fe-Si-C alloys Peer-reviewed

    H. -D. Wu, G. Miyamoto, Z. -G. Yang, C. Zhang, H. Chen, T. Furuhara

    ACTA MATERIALIA 133 1-9 2017/07

    DOI: 10.1016/j.actamat.2017.05.017  

    ISSN: 1359-6454

    eISSN: 1873-2453

  95. Banding effects on the process of grain refinement by cold deformation and recrystallization of acicular C-Mn steel Peer-reviewed

    Y. Karimi, S. Hossein Nedjad, G. Miyamoto, H. Shirazi, T. Furuhara

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 697 1-7 2017/06

    DOI: 10.1016/j.msea.2017.05.006  

    ISSN: 0921-5093

    eISSN: 1873-4936

  96. Crystallography and Interphase Boundary of Martensite and Bainite in Steels Peer-reviewed

    Tadashi Furuhara, Tadachika Chiba, Takeshi Kaneshita, Huidong Wu, Goro Miyamoto

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 48A (6) 2739-2752 2017/06

    DOI: 10.1007/s11661-017-4064-3  

    ISSN: 1073-5623

    eISSN: 1543-1940

  97. Variant selection in grain boundary nucleation of bainite in Fe-2Mn-C alloys Peer-reviewed

    T. Kaneshita, G. Miyamoto, T. Furuhara

    ACTA MATERIALIA 127 368-378 2017/04

    DOI: 10.1016/j.actamat.2017.01.035  

    ISSN: 1359-6454

    eISSN: 1873-2453

  98. Quantitative measurements of phase equilibria at migrating alpha/gamma interface and dispersion of VC interphase precipitates: Evaluation of driving force for interphase precipitation Peer-reviewed

    Y. -J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara

    ACTA MATERIALIA 128 166-175 2017/04

    DOI: 10.1016/j.actamat.2017.02.020  

    ISSN: 1359-6454

    eISSN: 1873-2453

  99. Analysis of the mechanical behavior of a 0.3C-1.6Si-3.5Mn (wt%) quenching and partitioning steel Peer-reviewed

    Farideh HajyAkbary, Jilt Sietsma, Goro Miyamoto, Naoya Kamikawa, Roumen H. Petrov, Tadashi Furuhara, Maria J. Santofimia

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 677 505-514 2016/11

    DOI: 10.1016/j.msea.2016.09.087  

    ISSN: 0921-5093

    eISSN: 1873-4936

  100. Precipitation Modeling in Nitriding in Fe-M Binary System Peer-reviewed

    Yusaku Tomio, Goro Miyamoto, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 47A (10) 4970-4978 2016/10

    DOI: 10.1007/s11661-016-3674-5  

    ISSN: 1073-5623

    eISSN: 1543-1940

  101. Characterization of crystal structure and precipitation crystallography of a new MgxAl2-xGd phase in an Mg97Al1Gd2 alloy Peer-reviewed

    X-F. Gu, T. Furuhara

    JOURNAL OF APPLIED CRYSTALLOGRAPHY 49 (4) 1177-1181 2016/08

    DOI: 10.1107/S1600576716008980  

    ISSN: 1600-5767

  102. Comparative Study on Nano-sized VC Precipitates by Interphase Precipitation and Tempering of Martensite in Low Carbon Steels Peer-reviewed

    Y. –J. Zhang, C. Zhao, G. Miyamoto, K. Shinbo, T. Furuhara

    Proceedings of the 9th Pacific Rim International Congress on Advanced Materials and Processing (PRICM9) 5-7 2016/08

  103. α Precipitation Kinetics and Microstructure Variation during Isothermal Aging of Ti-17 Alloy Peer-reviewed

    Y. Nagata, G. Miyamoto, T. Furuhara

    Proceedings of the 9th Pacific Rim International Congress on Advanced Materials and Processing (PRICM9) 654-657 2016/08

  104. PTCLab: free and open-source software for calculating phase transformation crystallography Peer-reviewed

    X. -F. Gu, T. Furuhara, W. -Z. Zhang

    JOURNAL OF APPLIED CRYSTALLOGRAPHY 49 (4) 1099-1106 2016/06

    DOI: 10.1107/S1600576716006075  

    ISSN: 1600-5767

  105. Interaction of carbon partitioning, carbide precipitation and bainite formation during the Q&P process in a low C steel Peer-reviewed

    Farideh HajyAkbary, Jilt Sietsma, Goro Miyamoto, Tadashi Furuhara, Maria Jesus Santofimia

    ACTA MATERIALIA 104 72-83 2016/02

    DOI: 10.1016/j.actamat.2015.11.032  

    ISSN: 1359-6454

    eISSN: 1873-2453

  106. Analysis of recrystallization behavior of hot-deformed austenite reconstructed from electron backscattering diffraction orientation maps of lath martensite Peer-reviewed

    Manabu Kubota, Kohsaku Ushioda, Goro Miyamoto, Tadashi Furuhara

    SCRIPTA MATERIALIA 112 92-95 2016/02

    DOI: 10.1016/j.scriptamat.2015.09.020  

    ISSN: 1359-6462

  107. Formation of grain boundary ferrite in eutectoid and hypereutectoid pearlitic steels Peer-reviewed

    Goro Miyamoto, Yosuke Karube, Tadashi Furuhara

    ACTA MATERIALIA 103 370-381 2016/01

    DOI: 10.1016/j.actamat.2015.10.032  

    ISSN: 1359-6454

    eISSN: 1873-2453

  108. Surface Hardening and Nitride Precipitation in the Nitriding of Fe-M1-M2 Ternary Alloys Containing Al, V, or Cr Peer-reviewed

    Goro Miyamoto, Shotaro Suetsugu, Kunio Shinbo, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 46A (11) 5011-5020 2015/11

    DOI: 10.1007/s11661-015-3133-8  

    ISSN: 1073-5623

    eISSN: 1543-1940

  109. Relationship between Hardness and Ferrite Morphology in VC Interphase Precipitation Strengthened Low Carbon Steels

    Y.-J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara

    Proceedings of the 10th CSM Steel Congress 2015/10

  110. Roughness on three dimensional microstructures in low carbon low alloy lath martensite Peer-reviewed

    Shigekazu Morito, Yuji Shimabayashi, Taisuke Hayashi, Anh Hoang Pham, Takuya Ohba, Goro Miyamoto, Tadashi Furuhara

    Proc. Asia Steel International Conference 2015 (Asia Steel 2015) 72-73 2015/10

  111. Reverse transformation of austenite from martensite in Fe-Mn-Si-C alloy during intercritical annealing Peer-reviewed

    T. Kaneshita, Y. Yoshida, Z. -Q. Liu, G. Miyamoto, T. Furuhara

    Proc. Asia Steel International Conference 2015 (Asia Steel 2015) 210-211 2015/10

  112. Precipitation Strengthening by VC/NbC/TiC Interphase Precipitation in Low-carbon Steels Peer-reviewed

    Y. -J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara

    Proc. Asia Steel International Conference 2015 (Asia Steel 2015) 344-345 2015/10

  113. Effect of phase distribution on tensile behavior of ferrite-martensite dual phase steels with nano-precipitation Peer-reviewed

    Elango Chandiran, Yu Sato, Naoya Kamikawa, Tadashi Furuhara

    Proc. Asia Steel International Conference 2015 (Asia Steel 2015) 516-517 2015/10

  114. Strengthening of Medium-Carbon Forging Steels by Interphase Precipitation Peer-reviewed

    Tadashi Furuhara, Goro Miyamoto, Naoya Kamikawa

    Proceedings for the International Conference on Advances in Product Metallurgy of Long and Forged Products 26-32 2015/07

  115. PTCLab — A Free and Open Source Program for Calculating Phase Transformation Crystallography Peer-reviewed

    X. -F. Gu, T. Furuhara, W, Z. Zhang

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 875-876 2015/06

  116. Crystallographic Analysis of Martensite and Bainite Structures by SEM/EBSD Method Invited Peer-reviewed

    G. Miyamoto, T. Furuhara

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 679-680 2015/06

  117. Variant Selection in Grain Boundary Nucleation of Bainite in Fe-2Mn-C Alloys Peer-reviewed

    T. Kaneshita, G. Miyamoto, T. Furuhara

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 633-634 2015/06

  118. Grain Refinement by Cyclic Displacive Forward/Reverse Transformation Peer-reviewed

    T. Chiba, G. Miyamoto, T. Furuhara

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 561-562 2015/06

  119. Quantitative Metallography for Industrial Use on Martensitic Steels Peer-reviewed

    A. Stormvinter, A. Borgenstam, G. Miyamoto, T. Furuhara, H. Kristoffersen

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 539-546 2015/06

  120. Dominating Factor on the Dispersion of VC Interphase Precipitation in V-Added Steels Peer-reviewed

    Y. -J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 191-192 2015/06

  121. Controlling of Abnormal Austenite Grain Growth in Banded Ferrite/Pearlite Steel by Cold Deformation Peer-reviewed

    Xianguang Zhang, Kiyotaka Matsuura, Munekazu Ohno, Goro Miyamoto, Tadashi Furuhara

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 33-34 2015/06

  122. Alloying Effects on Microstructure of Fe-1mass%M Binary Alloys Treated by Nitriding and Quenching Process Peer-reviewed

    H. Kubo, G. Miyamoto, T. Furuhara

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 29-30 2015/06

  123. Importance of Phase Transformations in Development of Modern High Strength Steels Invited Peer-reviewed

    Tadashi Furuhara, Naoya Kamikawa, Goro Miyamoto

    Proceedings of International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM 2015) 15-16 2015/06

  124. Effects of Mo on Carbon Enrichment During Proeutectoid Ferrite Transformation in Hypoeutectoid Fe-C-Mn Alloys Peer-reviewed

    Yuan Xia, Goro Miyamoto, Zhi-Gang Yang, Chi Zhang, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 46A (6) 2347-2351 2015/06

    DOI: 10.1007/s11661-015-2866-8  

    ISSN: 1073-5623

    eISSN: 1543-1940

  125. Direct measurement of carbon enrichment in the incomplete bainite transformation in Mo added low carbon steels Peer-reviewed

    Y. Xia, G. Miyamoto, Z. G. Yang, C. Zhang, T. Furuhara

    ACTA MATERIALIA 91 10-18 2015/06

    DOI: 10.1016/j.actamat.2015.03.021  

    ISSN: 1359-6454

    eISSN: 1873-2453

  126. Fe-Fe3C binary phase diagram in high magnetic fields Peer-reviewed

    Yoshifuru Mitsui, Yuki Ikehara, Kohki Takahashi, Shojiro Kimura, Goro Miyamoto, Tadashi Furuhara, Kazuo Watanabe, Keiichi Koyama

    JOURNAL OF ALLOYS AND COMPOUNDS 632 251-255 2015/05

    DOI: 10.1016/j.jallcom.2015.01.129  

    ISSN: 0925-8388

    eISSN: 1873-4669

  127. Carbon Enrichment in Austenite During Bainite Transformation in Fe-3Mn-C Alloy Peer-reviewed

    Zhen-Qing Liu, Goro Miyamoto, Zhi-Gang Yang, Chi Zhang, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 46A (4) 1544-1549 2015/04

    DOI: 10.1007/s11661-015-2744-4  

    ISSN: 1073-5623

    eISSN: 1543-1940

  128. Effects of transformation temperature on VC interphase precipitation and resultant hardness in low-carbon steels Peer-reviewed

    Y. -J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara, T. Ohmura, T. Suzuki, K. Tsuzaki

    ACTA MATERIALIA 84 375-384 2015/02

    DOI: 10.1016/j.actamat.2014.10.049  

    ISSN: 1359-6454

    eISSN: 1873-2453

  129. Effects of Pre-Strain and Ageing on the LPSO Structure in Mg97Zn1Y2 Alloy Peer-reviewed

    Xinfu Gu, Tadashi Furuhara

    MATERIALS TRANSACTIONS 56 (7) 917-922 2015

    DOI: 10.2320/matertrans.MH201416  

    ISSN: 1345-9678

    eISSN: 1347-5320

  130. Tensile Behavior of Ferrite-martensite Dual Phase Steels with Nano-precipitation of Vanadium Carbides Peer-reviewed

    Naoya Kamikawa, Masahiro Hirohashi, Yu Sato, Elango Chandiran, Goro Miyamot, Tadashi Furuhara

    ISIJ INTERNATIONAL 55 (8) 1781-1790 2015

    DOI: 10.2355/isijinternational.ISIJINT-2015-106  

    ISSN: 0915-1559

    eISSN: 1347-5460

  131. Stress strain behavior of ferrite and bainite with nano-precipitation in low carbon steels Peer-reviewed

    Naoya Kamikawa, Kensuke Sato, Goro Miyamoto, Mitsuhiro Murayama, Nobuaki Sekido, Kaneaki Tsuzaki, Tadashi Furuhara

    ACTA MATERIALIA 83 383-396 2015/01

    DOI: 10.1016/j.actamat.2014.10.010  

    ISSN: 1359-6454

    eISSN: 1873-2453

  132. Characterization of Transformation Stasis in Low-Carbon Steels Microalloyed with B and Mo Peer-reviewed

    Tadashi Furuhara, Kenji Tsuzumi, Goro Miyamoto, Takafumi Amino, Genichi Shigesato

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 45A (13) 5990-5996 2014/12

    DOI: 10.1007/s11661-014-2584-7  

    ISSN: 1073-5623

    eISSN: 1543-1940

  133. Effects of Pre-tempering on Intercritical Annealing in Fe-2Mn-0.3C Alloy Peer-reviewed

    Zhen-Qing Liu, Goro Miyamoto, Zhi-Gang Yang, Chi Zhang, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 45A (12) 5290-5294 2014/11

    DOI: 10.1007/s11661-014-2519-3  

    ISSN: 1073-5623

    eISSN: 1543-1940

  134. Non-classical {334}(beta) type of twinned alpha ' martensite in a Ti-5.26 wt.% Cr alloy Peer-reviewed

    D. Qiu, M. -X. Zhang, P. M. Kelly, T. Furuhara

    ACTA MATERIALIA 67 373-382 2014/04

    DOI: 10.1016/j.actamat.2013.12.008  

    ISSN: 1359-6454

    eISSN: 1873-2453

  135. EBSD and DTA Characterization of A356 Alloy Deformed by ECAP During Reheating and Partial Re-melting Peer-reviewed

    Marzyeh Moradi, Mahmoud Nili-Ahmadabadi, Behrang Poorganji, Bashir Heidarian, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 45A (3) 1540-1551 2014/03

    DOI: 10.1007/s11661-013-2093-0  

    ISSN: 1073-5623

    eISSN: 1543-1940

  136. The boundary features in the lath martensite Peer-reviewed

    Shigekazu Morito, Takuya Ohba, Tadashi Furuhara, Goro Miyamato, Yoshitaka Adachi

    Proceedings of the 4th International Symposium on Steel Science (ISSS 2014) 155-158 2014

  137. Improvement of strength and ductility in ferrite-martensite dual phase steels by dispersion of nano-precipitates Peer-reviewed

    Naoya Kamikawa, Masahiro Hirohashi, Yu Sato, Elango Chandiran, Goro Miyamoto, Tadashi Furuhara

    Proceedings of the 4th International Symposium on Steel Science (ISSS 2014) 95-98 2014

  138. Plasma Nitriding Behavior of Fe-C-M (M = Al, Cr, Mn, Si) Ternary Martensitic Steels Peer-reviewed

    Yusaku Tomio, Shigeki Kitsuya, Keilchiro Oh-Ishi, Kazuhiro Hono, Goro Miyamoto, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 45A (1) 239-249 2014/01

    DOI: 10.1007/s11661-013-1991-5  

    ISSN: 1073-5623

    eISSN: 1543-1940

  139. Tensile Behavior of Ti,Mo-added Low Carbon Steels with lnterphase Precipitation Peer-reviewed

    Naoya Kamikawa, Yoshihisa Abe, Goro Miyamoto, Yoshimasa Funakawa, Tadashi Furuhara

    ISIJ INTERNATIONAL 54 (1) 212-221 2014

    DOI: 10.2355/isijinternational.54.212  

    ISSN: 0915-1559

    eISSN: 1347-5460

  140. On the Elastic Accommodation Between the Structural Units in the LPSO Structures Peer-reviewed

    Xinfu Gu, Tadashi Furuhara

    MATERIALS TRANSACTIONS 55 (11) 1662-1667 2014

    DOI: 10.2320/matertrans.MAW201420  

    ISSN: 1345-9678

    eISSN: 1347-5320

  141. Volume Fractions of Proeutectoid Ferrite/Pearlite and Their Dependence on Prior Austenite Grain Size in Hypoeutectoid Fe-Mn-C Alloys Peer-reviewed

    Zhen-Qing Liu, Goro Miyamoto, Zhi-Gang Yang, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 44A (12) 5456-5467 2013/12

    DOI: 10.1007/s11661-013-1885-6  

    ISSN: 1073-5623

    eISSN: 1543-1940

  142. Synergistic alloying effect on microstructural evolution and mechanical properties of Cu precipitation-strengthened ferritic alloys Peer-reviewed

    Y. R. Wen, Y. P. Li, A. Hirata, Y. Zhang, T. Fujita, T. Furuhara, C. T. Liu, A. Chiba, M. W. Chen

    ACTA MATERIALIA 61 (20) 7726-7740 2013/12

    DOI: 10.1016/j.actamat.2013.09.011  

    ISSN: 1359-6454

    eISSN: 1873-2453

  143. Crystallography of surface precipitates associated with shape change in a Ti-5.26 wt.% Cr alloy Peer-reviewed

    Dong Qiu, Ming-Xing Zhang, Patrick M. Kelly, Tadashi Furuhara

    ACTA MATERIALIA 61 (20) 7624-7638 2013/12

    DOI: 10.1016/j.actamat.2013.08.067  

    ISSN: 1359-6454

    eISSN: 1873-2453

  144. Quantitative analysis of three-dimensional morphology of martensite packets and blocks in iron-carbon-manganese steels Peer-reviewed

    Shigekazu Morito, Yuma Edamatsu, Kenta Ichinotani, Takuya Ohba, Taisuke Hayashi, Yoshitaka Adachi, Tadashi Furuhara, Goro Miyamoto, Naoki Takayama

    JOURNAL OF ALLOYS AND COMPOUNDS 577 S587-S592 2013/11

    DOI: 10.1016/j.jallcom.2012.02.004  

    ISSN: 0925-8388

    eISSN: 1873-4669

  145. Discovery of plate-shaped athermal omega phase forming pairs with alpha ' martensite in a Ti-5.26 wt.% Cr Alloy Peer-reviewed

    Dong Qiu, Mingxing Zhang, Patrick Kelly, Tadashi Furuhara

    SCRIPTA MATERIALIA 69 (10) 752-755 2013/11

    DOI: 10.1016/j.scriptamat.2013.08.020  

    ISSN: 1359-6462

  146. Excess Carbon Enrichment in Austenite During Intercritical Annealing Peer-reviewed

    Zhen-Qing Liu, Goro Miyamoto, Zhi-Gang Yang, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 44A (11) 4872-4875 2013/11

    DOI: 10.1007/s11661-013-1973-7  

    ISSN: 1073-5623

  147. Variant selection of lath martensite and bainite transformation in low carbon steel by ausforming Peer-reviewed

    Goro Miyamoto, Naomichi Iwata, Naoki Takayama, Tadashi Furuhara

    JOURNAL OF ALLOYS AND COMPOUNDS 577 (Supplement 1) S528-S532 2013/11

    DOI: 10.1016/j.jallcom.2011.12.111  

    ISSN: 0925-8388

    eISSN: 1873-4669

  148. Microstructural evaluation of austenite reversion during intercritical annealing of Fe-Ni-Mn martensitic steel Peer-reviewed

    H. Shirazi, G. Miyamoto, S. Hossein Nedjad, H. Ghasemi-Nanesa, M. Nil Ahmadabadi, T. Furuhara

    JOURNAL OF ALLOYS AND COMPOUNDS 577 (Supplement 1) S572-S577 2013/11

    DOI: 10.1016/j.jallcom.2012.02.015  

    ISSN: 0925-8388

    eISSN: 1873-4669

  149. Quantitative analysis of three-dimensional morphology of martensite packets and blocks in iron-carbon-manganese steels Peer-reviewed

    Shigekazu Morito, Yuma Edamatsu, Kenta Ichinotani, Takuya Ohba, Taisuke Hayashi, Yoshitaka Adachi, Tadashi Furuhara, Goro Miyamoto, Naoki Takayama

    JOURNAL OF ALLOYS AND COMPOUNDS 577 (Supplement 1) S587-S592 2013/11

    DOI: 10.1016/j.jallcom.2012.02.004  

    ISSN: 0925-8388

    eISSN: 1873-4669

  150. PREFACE

    NIINOMI Mitsuo, FURUHARA Tadashi, CHIBA Akihiko, NARUSHIMA Takayuki

    MATERIALS TRANSACTIONS 54 (8) 1241-1241 2013/08/01

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/matertrans.MPR2013904  

    ISSN: 1345-9678

  151. Accumulative channel-die compression bonding (ACCB): A new severe plastic deformation process to produce bulk nanostructured metals Peer-reviewed

    Naoya Kamikawa, Tadashi Furuhara

    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 213 (8) 1412-1418 2013/08

    DOI: 10.1016/j.jmatprotec.2013.02.016  

    ISSN: 0924-0136

  152. Crystallographic Analysis of Proeutectoid Ferrite/Austenite Interface and Interphase Precipitation of Vanadium Carbide in Medium-Carbon Steel Peer-reviewed

    Goro Miyamoto, Ryota Hori, Behrang Poorganji, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 44A (8) 3436-3443 2013/08

    DOI: 10.1007/s11661-013-1702-2  

    ISSN: 1073-5623

    eISSN: 1543-1940

  153. Effects of alpha/gamma orientation relationship on VC interphase precipitation in low-carbon steels Peer-reviewed

    Y. -J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara

    SCRIPTA MATERIALIA 69 (1) 17-20 2013/07

    DOI: 10.1016/j.scriptamat.2013.03.020  

    ISSN: 1359-6462

  154. Discussion on Strain Accommodation Associated with Formation of LPSO Structure Peer-reviewed

    Tadashi Furuhara, Xinfu Gu

    MATERIALS TRANSACTIONS 54 (5) 675-679 2013/05

    DOI: 10.2320/matertrans.MI201224  

    ISSN: 1345-9678

    eISSN: 1347-5320

  155. Tensile Behavior of Ti,Mo-Added Low Carbon Steels with Interphase Boundary Precipitated Structures Peer-reviewed

    Naoya Kamikawa, Yoshihisa Abe, Goro Miyamoto, Yoshimasa Funakawa, Tadashi Furuhara

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN 99 (5) 352-361 2013/05

    DOI: 10.2355/tetsutohagane.99.352  

    ISSN: 0021-1575

    eISSN: 1883-2954

  156. Direct measurement of carbon enrichment during austenite to ferrite transformation in hypoeutectoid Fe-2Mn-C alloys Peer-reviewed

    Z. -Q. Liu, G. Miyamoto, Z. -G. Yang, T. Furuhara

    ACTA MATERIALIA 61 (8) 3120-3129 2013/05

    DOI: 10.1016/j.actamat.2013.02.003  

    ISSN: 1359-6454

  157. Effect of Titanium Carbide Inclusions on Morphology of Low-Carbon Steel Martensite Peer-reviewed

    H. A. Pham, T. Ohba, S. Morito, T. Hayashi, T. Furuhara, G. Miyamoto

    EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATIONS 738-739 25-+ 2013

    DOI: 10.4028/www.scientific.net/MSF.738-739.25  

    ISSN: 0255-5476

  158. Comparison of Variant Selection between Lenticular and Lath Martensite Transformed from Deformed Austenite Peer-reviewed

    Tadachika Chiba, Goro Miyamoto, Tadashi Furuhara

    ISIJ INTERNATIONAL 53 (5) 915-919 2013

    DOI: 10.2355/isijinternational.53.915  

    ISSN: 0915-1559

    eISSN: 1347-5460

  159. Quantitative measurement of carbon content in Fe-C binary alloys by atom probe tomography Peer-reviewed

    Goro Miyamoto, Kunio Shinbo, Tadashi Furuhara

    SCRIPTA MATERIALIA 67 (12) 999-1002 2012/12

    DOI: 10.1016/j.scriptamat.2012.09.007  

    ISSN: 1359-6462

  160. Effect of carbon content on variant pairing of martensite in Fe-C alloys Peer-reviewed

    A. Stormvinter, G. Miyamoto, T. Furuhara, P. Hedstrom, A. Borgenstam

    ACTA MATERIALIA 60 (20) 7265-7274 2012/12

    DOI: 10.1016/j.actamat.2012.09.046  

    ISSN: 1359-6454

  161. Effect of Initial Structure on Formation of Ultrafine Grains during Warm Deformation of Ferrite Peer-reviewed

    Naoya Kamikawa, Un-Hae Lee, Goro Miyamoto, Tadashi Furuhara

    Proceedings of the International Workshop on Bulk Nanostructured Metals 133-136 2012/11

  162. Alloying effects on formation of compound layer in the gaseous nitrided Fe-M binary alloys Peer-reviewed

    Fanhui Meng, Goro Miyamoto, Tadashi Furuhara, Shoko Komiyama, Yuji Sutou, Junichi Koike

    Proceedings of 20th Congress of International Federation for Heat Treatment and Surface Engineering 268-270 2012/10

  163. Variant selection of lenticular martensite by ausforming Peer-reviewed

    T. Chiba, G. Miyamoto, T. Furuhara

    SCRIPTA MATERIALIA 67 (4) 324-327 2012/08

    DOI: 10.1016/j.scriptamat.2012.05.007  

    ISSN: 1359-6462

  164. Enhancement of Pearlite Nucleation by Deformation of Austenite Matrix in an Fe-12Mn-0.8C Alloy

    Tadashi Furuhara, Naritoshi Kimura, Tadashi Maki

    STEEL RESEARCH INTERNATIONAL 83 (4) 358-362 2012/04

    DOI: 10.1002/srin.201100305  

    ISSN: 1611-3683

    eISSN: 1869-344X

  165. Microstructure of Pure Iron Treated by Nitriding and Quenching Process Peer-reviewed

    Makoto Chiba, Goro Miyamoto, Tadashi Furuhara

    JOURNAL OF THE JAPAN INSTITUTE OF METALS 76 (4) 256-264 2012/04

    DOI: 10.2320/jinstmet.76.256  

    ISSN: 0021-4876

    eISSN: 1880-6880

  166. Effects of transformation temperature on variant pairing of bainitic ferrite in low carbon steel Peer-reviewed

    N. Takayama, G. Miyamoto, T. Furuhara

    ACTA MATERIALIA 60 (5) 2387-2396 2012/03

    DOI: 10.1016/j.actamat.2011.12.018  

    ISSN: 1359-6454

  167. Quantitative analysis of variant selection in ausformed lath martensite Peer-reviewed

    G. Miyamoto, N. Iwata, N. Takayama, T. Furuhara

    ACTA MATERIALIA 60 (3) 1139-1148 2012/02

    DOI: 10.1016/j.actamat.2011.11.018  

    ISSN: 1359-6454

  168. Continuous dynamic recrystallization during warm deformation of tempered lath martensite in a medium carbon steel Peer-reviewed

    Un Hae Lee, Naoya Kamikawa, Goro Miyamoto, Tadashi Furuhara

    MATERIALS INTEGRATION 508 124-+ 2012

    DOI: 10.4028/www.scientific.net/KEM.508.124  

    ISSN: 1013-9826

  169. Stored Energy and Annealing Behavior of Heavily Deformed Aluminium Peer-reviewed

    Naoya Kamikawa, Xiaoxu Huang, Yuka Kondo, Tadashi Furuhara, Niels Hansen

    RECRYSTALLIZATION AND GRAIN GROWTH IV 715-716 367-+ 2012

    DOI: 10.4028/www.scientific.net/MSF.715-716.367  

    ISSN: 0255-5476

  170. Effect of Initial Structure on Formation of Ultrafine Grains during Warm Deformation of Ferrite Peer-reviewed

    Naoya Kamikawa, Un-Hae Lee, Goro Miyamoto, Tadashi Furuhara

    Proceedings of the International Workshop on Bulk Nanostructured Metals 133-136 2012

  171. Effects of Mo and B addition on bainite transformation in low-carbon low-alloy steels Peer-reviewed

    Tadashi Furuhara, Kenji Takahashi, Naoki Takayama, Goro Miyamoto, Taishi Fujishiro, Masanori Minagawa

    Proceedings of the 3rd International Symposium on Steel Science (ISSS-2012) 159-162 2012

  172. Formation of nano-sized cluster and nitride during nitriding of ferrous alloys Invited Peer-reviewed

    Goro Miyamoto, Tadashi Furuhara

    Proceedings of the 3rd International Symposium on Steel Science (ISSS-2012) 51-57 2012

  173. Model for Predicting Phase Transformation and Yield Strength of Vanadium Microalloyed Carbon Steels Peer-reviewed

    Ho-Hung Kuo, Minoru Umemoto, Kazuki Sugita, Goro Miyamoto, Tadashi Furuhara

    ISIJ INTERNATIONAL 52 (4) 669-678 2012

    DOI: 10.2355/isijinternational.52.669  

    ISSN: 0915-1559

  174. Effects of Ferrite Growth Rate on Interphase Boundary Precipitation in V Microalloyed Steels Peer-reviewed

    Toshio Murakami, Hitoshi Hatano, Goro Miyamoto, Tadashi Furuhara

    ISIJ INTERNATIONAL 52 (4) 616-625 2012

    DOI: 10.2355/isijinternational.52.616  

    ISSN: 0915-1559

    eISSN: 1347-5460

  175. ALEMI: A Ten-Year History of Discussions of Alloying-Element Interactions with Migrating Interfaces Invited Peer-reviewed

    Gary Purdy, John Agren, Annika Borgenstam, Yves Brechet, Masato Enomoto, Tadashi Furuhara, Ernst Gamsjager, Mohamed Goune, Mats Hillert, Christopher Hutchinson, Matthias Militzer, Hatem Zurob

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 42A (12) 3703-3718 2011/12

    DOI: 10.1007/s11661-011-0766-0  

    ISSN: 1073-5623

    eISSN: 1543-1940

  176. Microstructures and mechanical properties of metastable Ti-30Zr-(Cr, Mo) alloys with changeable Young's modulus for spinal fixation applications Peer-reviewed

    Xiaoli Zhao, Mitsuo Niinomi, Masaaki Nakai, Goro Miyamoto, Tadashi Furuhara

    ACTA BIOMATERIALIA 7 (8) 3230-3236 2011/08

    DOI: 10.1016/j.actbio.2011.04.019  

    ISSN: 1742-7061

    eISSN: 1878-7568

  177. Role of severe plastic deformation on the formation of nanograins and nano-sized precipitates in Fe-Ni-Mn steel Peer-reviewed

    M. Nili Ahmadabadi, H. Shirazi, H. Ghasemi-Nanesa, S. Hossein Nedjad, B. Poorganji, T. Furuhara

    Materials and Design 32 (6) 3526-3531 2011/06

    DOI: 10.1016/j.matdes.2011.02.018  

    ISSN: 0264-1275 1873-4197

  178. Role of severe plastic deformation on the formation of nanograins and nano-sized precipitates in Fe-Ni-Mn steel Peer-reviewed

    M. Nili Ahmadabadi, H. Shirazi, H. Ghasemi-Nanesa, S. Hossein Nedjad, B. Poorganji, T. Furuhara

    MATERIALS & DESIGN 32 (6) 3526-3531 2011/06

    DOI: 10.1016/j.matdes.2011.02.018  

    ISSN: 0261-3069

  179. Kinetics of Reverse Transformation from Pearlite to Austenite in an Fe-0.6 Mass pct C Alloy and the Effects of Alloying Elements Peer-reviewed

    Zhao-Dong Li, Goro Miyamoto, Zhi-Gang Yang, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 42A (6) 1586-1596 2011/06

    DOI: 10.1007/s11661-010-0560-4  

    ISSN: 1073-5623

  180. Visible light response of nitrogen and sulfur co-doped TiO2 photocatalysts fabricated by anodic oxidation Peer-reviewed

    Yosuke Komai, Kenji Okitsu, Rokuro Nishimura, Naofumi Ohtsu, Goro Miyamoto, Tadashi Furuhara, Satoshi Semboshi, Yoshiteru Mizukoshi, Naoya Masahashi

    CATALYSIS TODAY 164 (1) 399-403 2011/04

    DOI: 10.1016/j.cattod.2010.10.085  

    ISSN: 0920-5861

  181. Precipitation of nanosized nitrides in plasma nitrided Fe-M (M=Al, Cr, Ti, V) alloys Invited Peer-reviewed

    G. Miyamoto, Y. Tomio, H. Aota, K. Oh-ishi, K. Hono, T. Furuhara

    MATERIALS SCIENCE AND TECHNOLOGY 27 (4) 742-746 2011/04

    DOI: 10.1179/1743284710Y.0000000014  

    ISSN: 0267-0836

  182. Effects of transformation temperature on variant grouping of bainitic ferrite in low carbon steel Peer-reviewed

    N. Takayama, G. Miyamoto, T. Furuhara

    SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2 172-174 155-+ 2011

    DOI: 10.4028/www.scientific.net/SSP.172-174.155  

    ISSN: 1012-0394

  183. Distribution of dislocations in nanostructured bainite Peer-reviewed

    J. Cornide, G. Miyamoto, F. G. Caballero, T. Furuhara, M. K. Miller, C. Garcia-Mateo

    SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2 172-174 117-+ 2011

    DOI: 10.4028/www.scientific.net/SSP.172-174.117  

    ISSN: 1012-0394

  184. Interphase boundary precipitation of VC accompanying ferrite and pearlite transformation in medium carbon steels Peer-reviewed

    Goro Miyamoto, Poorganji Behrang, Tadashi Furuhara

    SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2 172-174 420-+ 2011

    DOI: 10.4028/www.scientific.net/SSP.172-174.420  

    ISSN: 1012-0394

  185. Formation of Ultrafine Grained Ferrite plus Cementite Duplex Structure by Warm Deformation Invited Peer-reviewed

    Tadashi Furuhara, Behrang Poorganji

    ADVANCED STEELS: THE RECENT SCENARIO IN STEEL SCIENCE AND TECHNOLOGY 495-+ 2011

    DOI: 10.1007/978-3-642-17665-4_49  

  186. Microstructure and Mechanical Properties of Austempered Medium Carbon Steels Peer-reviewed

    Takeshi Suzuki, Yoshiki Ono, Goro Miyamoto, Tadashi Furuhara

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN 97 (1) 26-33 2011/01

    DOI: 10.2355/tetsutohagane.97.26  

    ISSN: 0021-1575

    eISSN: 1883-2954

  187. Reconstruction of Parent Austenite Grain Structure Based on Crystal Orientation Map of Bainite with and without Ausforming Peer-reviewed

    Goro Miyamoto, Naomichi Iwata, Naoki Takayama, Tadashi Furuhara

    ISIJ INTERNATIONAL 51 (7) 1174-1178 2011

    DOI: 10.2355/isijinternational.51.1174  

    ISSN: 0915-1559

  188. Interphase Precipitation of VC and Resultant Hardening in V-added Medium Carbon Steels Peer-reviewed

    Goro Miyamoto, Ryota Hori, Behrang Poorganji, Tadashi Furuhara

    ISIJ INTERNATIONAL 51 (10) 1733-1739 2011

    DOI: 10.2355/isijinternational.51.1733  

    ISSN: 0915-1559

  189. Mapping the parent austenite orientation reconstructed from the orientation of martensite by EBSD and its application to ausformed martensite Peer-reviewed

    Goro Miyamoto, Naomichi Iwata, Naoki Takayama, Tadashi Furuhara

    ACTA MATERIALIA 58 (19) 6393-6403 2010/11

    DOI: 10.1016/j.actamat.2010.08.001  

    ISSN: 1359-6454

  190. Recrystallization Behavior of ECAPed A356 Alloy at Semi-solid Reheating Temperature Peer-reviewed

    M. Moradi, M. Nili-Ahmadabadi, B. Poorganji, B. Heidarian, M.H. Parsa, T. Furuhara

    Journal of Materials Science 45 (17) 4689-4695 2010/09

  191. Mechanical Properties Evaluations of an Age Hardenable Martensitic Steel Deformed by Equal Channel Angular Pressing Peer-reviewed

    M. Nili-Ahmadabadi, H. Shirazi, M. Iranpour Mobarake, B. Poorganji, S. Hossein Nedjad, T. Furuhara

    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 10 (9) 6182-6185 2010/09

    DOI: 10.1166/jnn.2010.2581  

    ISSN: 1533-4880

    eISSN: 1533-4899

  192. Microstructural Evolution of Bainitic Steel Severely Deformed by Equal Channel Angular Pressing Peer-reviewed

    M. Nili-Ahmadabadi, F. Haji Akbari, F. Rad, Z. Karimi, M. Iranpour, B. Poorganji, T. Furuhara

    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 10 (9) 5986-5993 2010/09

    DOI: 10.1166/jnn.2010.2582  

    ISSN: 1533-4880

    eISSN: 1533-4899

  193. EFFECTS OF Mn AND Si ADDITIONS ON PEARLITEAUSTENITE PHASE TRANSFORMATION IN Fe-0.6C STEEL Peer-reviewed

    Li Zhaodong, Goro Miyamoto, Yang Zhigang, Zhang Yuduo, Zhang Chi, Tadashi Furuhara

    ACTA METALLURGICA SINICA 46 (9) 1066-1074 2010/09

    DOI: 10.3724/SP.J.1037.2010.00188  

    ISSN: 0412-1961

  194. Microstructure evolution through heavy compression aided by thermodynamic calculations Peer-reviewed

    Farideh Hajiakbari, Mahmoud Nili-Ahmadabadi, Behrang Poorganji, Tadashi Furuhara

    JOURNAL OF MATERIALS SCIENCE 45 (17) 4689-4695 2010/09

    DOI: 10.1007/s10853-010-4305-y  

    ISSN: 0022-2461

  195. Effects of Mn, Si and Cr addition on reverse transformation at 1073 K from spheroidized cementite structure in Fe-0.6 mass% C alloy Peer-reviewed

    G. Miyamoto, H. Usuki, Z. -D. Li, T. Furuhara

    ACTA MATERIALIA 58 (13) 4492-4502 2010/08

    DOI: 10.1016/j.actamat.2010.04.045  

    ISSN: 1359-6454

  196. Effects of Si and Cr on Bainite Microstructure of Medium Carbon Steels Peer-reviewed

    Takeshi Suzuki, Yoshiki Ono, Goro Miyamoto, Tadashi Furuhara

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN 96 (6) A392-A399 2010/06

    DOI: 10.2355/tetsutohagane.96.392  

    ISSN: 0021-1575

  197. Recrystallization behavior of ECAPed A356 alloy at semi-solid reheating temperature Peer-reviewed

    M. Moradi, M. Nili-Ahmadabadi, B. Poorganji, B. Heidarian, M. H. Parsa, T. Furuhara

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 527 (16-17) 4113-4121 2010/06

    DOI: 10.1016/j.msea.2010.03.021  

    ISSN: 0921-5093

  198. Control of austenite to martensite transformation through equal channel angular pressing aided by thermodynamic calculations Peer-reviewed

    F. Hajiakbari, M. Nili-Ahmadabadi, B. Poorganji, T. Furuhara

    ACTA MATERIALIA 58 (8) 3073-3078 2010/05

    DOI: 10.1016/j.actamat.2010.01.044  

    ISSN: 1359-6454

  199. Interphase boundary structure and accommodation mechanism of lenticular martensite in Fe-Ni alloys Peer-reviewed

    A. Shibata, T. Furuhara, T. Maki

    ACTA MATERIALIA 58 (9) 3477-3492 2010/05

    DOI: 10.1016/j.actamat.2010.02.022  

    ISSN: 1359-6454

  200. Incomplete transformation of upper bainite in Nb bearing low carbon steels Invited Peer-reviewed

    T. Furuhara, T. Yamaguchi, G. Miyamoto, T. Maki

    MATERIALS SCIENCE AND TECHNOLOGY 26 (4) 392-397 2010/04

    DOI: 10.1179/026708309X12512744  

    ISSN: 0267-0836

  201. Microstructure and Toughness of Bainite and Tempered Martensite with Medium-Carbon Steel Peer-reviewed

    Noriaki Kosala, Yoshimasa Funakawa, Yutaka Neishi, Tadashi Furuhara

    Journal of The Japan Society for Heat Treatmen 50 (1) 39-45 2010/02

  202. レンズマルテンサイトのミドリブの起源

    柴田曉伸, 村上俊夫, 森戸茂一, 古原忠, 牧正志

    まてりあ 49 260 2010

  203. Formation of Martensite Austenite Constituent in Continuously Cooled Nb-Bearing Low Carbon Steels Invited Peer-reviewed

    N. Takayama, G. Miyamoto, N. Kamikawa, H. Nako, T. Maki, T. Furuhara

    THERMEC 2009, PTS 1-4 638-642 3080-+ 2010

    DOI: 10.4028/www.scientific.net/MSF.638-642.3080  

    ISSN: 0255-5476

  204. Alloying Effects on Reverse Transformation to Austenite from Pear lite or Tempered Martensite Structures Invited Peer-reviewed

    Goro Miyamoto, Zhao-Dong Li, Hirokazu Usuki, Tadashi Furuhara

    THERMEC 2009, PTS 1-4 638-642 3400-+ 2010

    DOI: 10.4028/www.scientific.net/MSF.638-642.3400  

    ISSN: 0255-5476

  205. Key Factors in Grain Refinement of Martensite and Bainite Invited Peer-reviewed

    T. Furuhara, N. Takayama, G. Miyamoto

    THERMEC 2009, PTS 1-4 638-642 3044-+ 2010

    DOI: 10.4028/www.scientific.net/MSF.638-642.3044  

    ISSN: 0255-5476

  206. HOT DEFORMATION BEHAVIOR OF NEAR-alpha Ti-Fe ALLOY IN (alpha plus beta) TWO-PHASE REGION WITH DIFFERENT Fe CONTENT Invited Peer-reviewed

    Behrang Poorganji, Makoto Yamaguchi, Yoshio Itsumi, Katsushi Matsumoto, Tomofumi Tanaka, Yusuke Asa, Goro Miyamoto, Tadashi Furuhara

    THERMEC 2009, PTS 1-4 638-642 310-+ 2010

    DOI: 10.4028/www.scientific.net/MSF.638-642.310  

    ISSN: 0255-5476

  207. ECAP Processing of High Si Bainitic Steel, Microstructure and Mechanical Properties Peer-reviewed

    M. Nili-Ahmadabadi, F. Haji-Akbari, F. Rad, M. Iranpour, M. Shahirnia, B. Poorganji, T. Furuhara

    ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES, PTS 1 AND 2 83-86 358-+ 2010

    DOI: 10.4028/www.scientific.net/AMR.83-86.358  

    ISSN: 1022-6680

  208. Crystallography of Ferrite Nucleation at Austenite Grain Boundary in a Low Carbon Steel Peer-reviewed

    Tadashi Furuhara, Hayato Saito, Goro Miyamoto, Tadashi Maki

    PRICM 7, PTS 1-3 654-656 7-+ 2010

    DOI: 10.4028/www.scientific.net/MSF.654-656.7  

    ISSN: 0255-5476

  209. Characterization of Substructure Evolution in Ferrous Lenticular Martensite Invited Peer-reviewed

    Akinobu Shibata, Shigekazu Morito, Tadashi Furuhara, Tadashi Maki

    PRICM 7, PTS 1-3 654-656 1-+ 2010

    DOI: 10.4028/www.scientific.net/MSF.654-656.1  

    ISSN: 0255-5476

  210. New ferrite grain formation by plasma nitriding of Fe-high Cr alloys Peer-reviewed

    Goro Miyamoto, Tadashi Maki, Tadashi Furuhara

    Proc. of European Conference on Heat Treatment 2010 (Nitriding and Nitrocarburising) 78-86 2010

  211. Tensile Behavior of Low Carbon Steels with Nano-Sized Alloy Carbides Produced by Interphase Boundary Precipitation Peer-reviewed

    Naoya Kamikawa, Yoshihisa Abe, Goro Miyamoto, Tadashi Furuhara

    Proceedings of the 2nd International Symposium on Steel Science (ISSS 2009) 179-182 2010

  212. THREE DIMENSIONAL MORPHOLOGY OF LOW CARBON LATH MARTENSITE Peer-reviewed

    S. Morito, T. Furuhara, G. Miyamoto, N. Takayama, T. Ohba

    CHALLENGES IN MATERIALS SCIENCE AND POSSIBILITIES IN 3D AND 4D CHARACTERIZATION TECHNIQUES 361-+ 2010

    ISSN: 0907-0079

  213. The Crystallography of Lath Martensite at Austenite Grain Boundaries in Fe-Ni-Mn Alloy Peer-reviewed

    Shigekazu Morito, Jun Nishikawa, Takuya Ohba, Tadashi Furuhara, Tadashi Maki

    Proceedings of International Conference on Martensitic Transformations (ICOMAT2008) 649-653 2010

  214. Effect of yttrium addition on grain growth of alpha, beta and alpha plus beta titanium alloys Peer-reviewed

    B. Poorganji, A. Kazahari, T. Narushima, C. Ouchi, T. Furuhara

    15TH INTERNATIONAL CONFERENCE ON THE STRENGTH OF MATERIALS (ICSMA-15) 240 012170 2010

    DOI: 10.1088/1742-6596/240/1/012170  

    ISSN: 1742-6588

  215. Sequential Transformation of Reverted Austenite During Cold Rolling of Intercritically-Annealed Fe-Ni-Mn Steels Peer-reviewed

    H. Shirazi, M. Nili Ahmadabadi, T. Furuhara, H. Ghasemi-Nanesa, G. Miyamoto, S. Hossein Nedjad

    Proceedings of International Conference on Advanced Steels 2010 2010

  216. Effects of Si and Cr on Bainite Microstructure of Medium Carbon Steels Peer-reviewed

    Takeshi Suzuki, Yoshiki Ono, Goro Miyamoto, Tadashi Furuhara

    ISIJ INTERNATIONAL 50 (10) 1476-1482 2010

    DOI: 10.2355/isijinternational.50.1476  

    ISSN: 0915-1559

  217. Effect of Cooling Rate on Superelasticity and Microstructure Evolution in Ti-10V-2Fe-3Al and Ti-10V-2Fe-3Al-0.2N Alloys Peer-reviewed

    Yusaku Tomio, Tadashi Furuhara, Tadashi Maki

    MATERIALS TRANSACTIONS 50 (12) 2731-2736 2009/12

    DOI: 10.2320/matertrans.MA200909  

    ISSN: 1345-9678

    eISSN: 1347-5320

  218. Key Factors in Grain Refinement of Martensite and Bainite Invited

    T. Furuhara, N. Takayama, G. Miyamoto

    Proc. of Eighteenth International Conference on Processing and Fabrication of Advanced Materials (PFAMXVIII) 625-633 2009/12

  219. Effect of Retained Austenite Stability on Ductility of 590MPa Grade Cold-Rolled Trip Steel Sheets Invited

    Hiroshi Matsuda, Hisato Noro, Yasunobu Nagataki, Yoshihiro Hosoya, Tadashi Furuhara

    Proc. of Eighteenth International Conference on Processing and Fabrication of Advanced Materials (PFAMXVIII) 575-584 2009/12

  220. Formation of Martensite Austenite Constituent Accompanying Bainitic Transformation in Continuously Cooled Low Carbon Steels Invited

    N. Takayama, G. Miyamoto, N. Kamikawa, H. Nako, T. Maki, T. Furuhara

    Proc. of Eighteenth International Conference on Processing and Fabrication of Advanced Materials (PFAMXVIII) 565-574 2009/12

  221. Microstructure control for toughening high-strength low-carbon bainitic steels Invited

    Tadashi Furuhara

    Proc. of 2009 International Symposium on Steels for Infrastructure 37-41 2009/10

  222. Microstructure evolution during deformation of a near-alpha titanium alloy with different initial structures in the two-phase region Peer-reviewed

    Behrang Poorganji, Makoto Yamaguchi, Yoshio Itsumi, Katsushi Matsumoto, Tomofumi Tanaka, Yusuke Asa, Goro Miyamoto, Tadashi Furuhara

    SCRIPTA MATERIALIA 61 (4) 419-422 2009/08

    DOI: 10.1016/j.scriptamat.2009.04.033  

    ISSN: 1359-6462

  223. Accurate measurement of the orientation relationship of lath martensite and bainite by electron backscatter diffraction analysis Peer-reviewed

    G. Miyamoto, N. Takayama, T. Furuhara

    SCRIPTA MATERIALIA 60 (12) 1113-1116 2009/06

    DOI: 10.1016/j.scriptamat.2009.02.053  

    ISSN: 1359-6462

  224. Nucleation of austenite from pearlitic structure in an Fe-0.6C-1Cr alloy Peer-reviewed

    Z. -D. Li, G. Miyamoto, Z. -G. Yang, T. Furuhara

    SCRIPTA MATERIALIA 60 (7) 485-488 2009/04

    DOI: 10.1016/j.scriptamat.2008.11.041  

    ISSN: 1359-6462

  225. The Origin of Midrib in Lenticular Martensite Peer-reviewed

    Akinobu Shibata, Toshio Murakami, Shigekazu Morito, Tadashi Furuhara, Tadashi Maki

    JOURNAL OF THE JAPAN INSTITUTE OF METALS 73 (4) 290-298 2009/04

    DOI: 10.2320/jinstmet.73.290  

    ISSN: 0021-4876

    eISSN: 1880-6880

  226. Annealing behavior of an ultrafine-grained Fe-Ni-Mn steel during isothermal aging Peer-reviewed

    S. Hossein Nedjad, M. Nili Ahmadabadi, T. Furuhara

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 503 (1-2) 156-159 2009/03

    DOI: 10.1016/j.msea.2007.12.054  

    ISSN: 0921-5093

  227. Precise measurement of strain accommodation in austenite matrix surrounding martensite in ferrous alloys by electron backscatter diffraction analysis Peer-reviewed

    G. Miyamoto, A. Shibata, T. Maki, T. Furuhara

    ACTA MATERIALIA 57 (4) 1120-1131 2009/02

    DOI: 10.1016/j.actamat.2008.10.050  

    ISSN: 1359-6454

  228. Substructures of lenticular martensites with different martensite start temperatures in ferrous alloys Peer-reviewed

    A. Shibata, S. Morito, T. Furuhara, T. Maki

    ACTA MATERIALIA 57 (2) 483-492 2009/01

    DOI: 10.1016/j.actamat.2008.09.030  

    ISSN: 1359-6454

  229. Bainite Structures and Mechanical Properties of SUP12 Spring Steel Peer-reviewed

    Takeshi Suzuki, Tadashi Furuhara

    Transactions of Japan Society of Spring Engineers 54 (54) 27-33 2009

    Publisher:

    DOI: 10.5346/trbane.2009.27  

    ISSN: 0385-6917

  230. Effect of Pre-Deformation Heat Treatment on Deformation Behavior of Near-Alpha Ti-Fe Alloy at Two Phase (α+β) Region Peer-reviewed

    B. Poorganji, M. Yamaguchi, Y. Itsumi, K. Matsumoto, T. Tanaka, Y. Asa, G. Miyamoto, T. Furuhara

    Journal of The Japan Society for Heat Treatment, Special Issue 49 812-815 2009

  231. Alloying Effect on Reverse Transformation from Tempered Martensite Peer-reviewed

    G. Miyamoto, H. Usuki, T. Furuhara

    Journal of The Japan Society for Heat Treatment, Special Issue 49 482-485 2009

  232. Plasma Nitriding Behavior of Fe-C-M Ternary Martensitic Steels Peer-reviewed

    Y. Tomio, S. Kitsuya, K. Oishi, K. Hono, G. Miyamoto, T. Furuhara

    Journal of The Japan Society for Heat Treatment, Special Issue 49 161-164 2009

  233. Refinement of Cementite in Tempered Lath Martensite Invited Peer-reviewed

    T. Furuhara, G. Miyamoto, T. Maki

    Journal of The Japan Society for Heat Treatment, Special Issue 49 423-429 2009

  234. Effects of Pre-existing Boundaries on Microstructure Obtained by Plasma-nitriding of Fe-18%Cr Alloy Peer-reviewed

    Goro Miyamoto, Atsushi Yonemoto, Yusuke Tanaka, Tadashi Maki, Tadashi Furuhara

    ISIJ INTERNATIONAL 49 (11) 1801-1805 2009

    DOI: 10.2355/isijinternational.49.1801  

    ISSN: 0915-1559

  235. チタンのユビキタス化戦略 Peer-reviewed

    新家光雄, 塙 隆夫, 池田勝彦, 千葉昌彦, 古原 忠, 成島尚之, 土谷浩一, 江村 聡, 中野貴由, 竹中俊英

    2008/12

  236. Effect of Carbon Addition on Microstructure of Ti-V Alloys Peer-reviewed

    Tadashi Furuhara, Satoshi Annaka, Tadashi Maki

    JOURNAL OF THE JAPAN INSTITUTE OF METALS 72 (12) 942-948 2008/12

    DOI: 10.2320/jinstmet.72.942  

    ISSN: 0021-4876

    eISSN: 1880-6880

  237. Microstructural study of an age hardenable martensitic steel deformed by equal channel angular pressing Peer-reviewed

    M. Iranpour Mobarake, M. Nili-Ahmadabadi, B. Poorganji, A. Fatehi, H. Shirazi, T. Furuhara, Habibi Parsa, S. Hossein Nedjad

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 491 (1-2) 172-176 2008/09

    DOI: 10.1016/j.msea.2008.02.034  

    ISSN: 0921-5093

    eISSN: 1873-4936

  238. Correlation between the intergranular brittleness and precipitation reactions during isothermal aging of an Fe-Ni-Mn maraging steel Peer-reviewed

    S. Hossein Nedjad, M. Nili Ahmadabadi, T. Furuhara

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 490 (1-2) 105-112 2008/08

    DOI: 10.1016/j.msea.2008.01.070  

    ISSN: 0921-5093

  239. Formation of ultrafine grained ferrite by warm deformation of lath martensite in low-alloy steels with different carbon content Peer-reviewed

    Behrang Poorganji, Goro Miyamoto, Tadashi Maki, Tadashi Furuhara

    SCRIPTA MATERIALIA 59 (3) 279-281 2008/08

    DOI: 10.1016/j.scriptamat.2008.03.041  

    ISSN: 1359-6462

  240. The origin of midrib in lenticular martensite Peer-reviewed

    Akinobu Shibata, Toshio Murakami, Shigekazu Morito, Tadashi Furuhara, Tadashi Maki

    MATERIALS TRANSACTIONS 49 (6) 1242-1248 2008/06

    DOI: 10.2320/matertrans.MRA2007296  

    ISSN: 1345-9678

    eISSN: 1347-5320

  241. The extent and mechanism of nanostructure formation during cold rolling and aging of lath martensite in alloy steel Peer-reviewed

    S. Hossein Nedjad, M. Nili Ahmadabadi, T. Furuhara

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 485 (1-2) 544-549 2008/06

    DOI: 10.1016/j.msea.2007.08.008  

    ISSN: 0921-5093

  242. Variant selection in grain boundary nucleation of upper bainite Peer-reviewed

    T. Furuhara, H. Kawata, S. Morito, G. Miyamoto, T. Maki

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 39A (5) 1003-1013 2008/05

    DOI: 10.1007/s11661-008-9510-9  

    ISSN: 1073-5623

  243. Transmission electron microscopy study on the grain boundary precipitation of an Fe-Ni-Mn maraging steel Peer-reviewed

    S. Hossein Nedjad, M. Nili Ahmadabadi, T. Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 39A (1) 19-27 2008/01

    DOI: 10.1007/s11661-007-9407-z  

    ISSN: 1073-5623

    eISSN: 1543-1940

  244. Characteristics of microstructure in ultrahigh carbon steel produced during friction stir welding Peer-reviewed

    Yutaka S. Sato, Hideaki Yamanoi, Hiroyuki Kokawa, Tadashi Furuhara

    ISIJ INTERNATIONAL 48 (1) 71-76 2008

    DOI: 10.2355/isijinternational.48.71  

    ISSN: 0915-1559

  245. Phase transformation from fine-grained austenite Invited Peer-reviewed

    T. Furuhara, K. Kikumoto, H. Saito, T. Sekine, T. Ogawa, S. Morito, T. Maki

    ISIJ INTERNATIONAL 48 (8) 1038-1045 2008

    DOI: 10.2355/isijinternational.48.1038  

    ISSN: 0915-1559

  246. Microstructural evolution of ultrahigh carbon steel during friction stir welding Peer-reviewed

    Y. S. Sato, H. Yamanoi, H. Kokawa, T. Furuhara

    SCRIPTA MATERIALIA 57 (6) 557-560 2007/09

    DOI: 10.1016/j.scriptamat.2007.04.050  

    ISSN: 1359-6462

  247. Effect of partitioning of Mn and Si on the growth kinetics of cementite in tempered Fe-0.6 mass% C martensite Peer-reviewed

    G. Miyamoto, J. C. Oh, K. Hono, T. Furuhara, T. Maki

    ACTA MATERIALIA 55 (15) 5027-5038 2007/09

    DOI: 10.1016/j.actamat.2007.05.023  

    ISSN: 1359-6454

  248. Formation of ultrafine grained ferrite by warm deformation of tempered lath martensite in low alloy steels Peer-reviewed

    B. Poorganji, T. Yamaguchi, T. Maki, G. Miyamoto, T. Furuhara

    RECRYSTALLIZATION AND GRAIN GROWTH III, PTS 1 AND 2 558-559 557-+ 2007

    ISSN: 0255-5476

  249. Substructure and crystallography of degenerate pearlite in an Fe-C binary alloy Invited Peer-reviewed

    T. Furuhara, T. Moritani, K. Sakamoto, T. Maki

    THERMEC 2006, PTS 1-5 539-543 4832-+ 2007

    ISSN: 0255-5476

  250. Formation of (ferrite plus cementite) microduplex structure by warm deformation in high carbon steels Invited Peer-reviewed

    T. Furuhara, T. Yamaguchi, S. Furimoto, T. Maki

    THERMEC 2006, PTS 1-5 539-543 155-+ 2007

    ISSN: 0255-5476

  251. Effect of Carbon Content on Dynamic Recrystallization Behavior during Warm Deformation of Lath Martensite Peer-reviewed

    Behrang Poorganji, Goro Miyamoto, Tadashi Furuhara, Tadashi Maki

    Proc. the 4th International Symposium on Ultrafine Grained Steels (ISUGS2007) 81-86 2007

  252. Dynamic Recrystallization in Titanium Alloys by Hot Deformation Invited Peer-reviewed

    T. Furuhara, H. Abe, B. Poorganji, T. Maki

    Proc. the 11th Interantional Conference on Titanium (Ti-2007 Science and Technology) 913-919 2007

  253. Effect of Alloying Elements on Hot Deformation of Duplex Titanium Alloys Peer-reviewed

    Behrang Poorganji, Taichi Murakami, Takayuki Narushima, Chiaki Ouchi, Tadashi Furuhara

    Proc. the 11th Interantional Conference on Titanium (Ti-2007 Science and Technology) 535-538 2007

  254. Effect of cooling rate on superelasticity of Ti-10V-2Fe-3Al alloys Peer-reviewed

    Yusaku Tomio, Tadashi Furuhara, Tadashi Maki

    Proc. the 11th International Conference on Titanium (Ti-2007 Science and Technology) 571-574 2007

  255. On the Controlling Factors of Grain Sizes in Ferrous Martensite and Bainite Invited Peer-reviewed

    T. Furuhara, S. Morito, T. Maki

    Proc. the 1st International Symposium on Steel Science (IS3-2007) 51-56 2007

  256. Interphase Boundary Structure of Lenticular Martensite in an Fe-33Ni alloy Peer-reviewed

    A. Shibata, T. Furuhara, T. Maki

    Proc. the 1st International Symposium on Steel Science (IS3-2007) 159-162 2007

  257. Precise Measurement of Accommodation Strain in Austenite Surrounding Martensite by Electron Backscatter Diffraction Peer-reviewed

    G. Miyamoto, A. Shibata, T. Maki, T. Furuhara

    Proc. the 1st International Symposium on Steel Science (IS3-2007) 179-182 2007

  258. Dynamic Recovery and Recrystallization in Titanium Alloys by Hot Deformation Invited Peer-reviewed

    T. Furuhara

    Titanium Japan 55 (1) 1-5 2007/01

  259. Microstructure and growth kinetics of nitrided zone in plasmanitrided Fe-Cr alloys Peer-reviewed

    Goro Miyamoto, Atsushi Yonemoto, Yusuke Tanaka, Tadashi Maki, Tadashi Furuhara

    ISIJ INTERNATIONAL 47 (10) 1491-1496 2007

    DOI: 10.2355/isijinternational.47.1491  

    ISSN: 0915-1559

  260. Dynamic recovery and recrystallization in titanium alloys by hot deformation Invited Peer-reviewed

    T. Furuhara, B. Poorganji, H. Abe, T. Maki

    JOM 59 (1) 64-67 2007/01

    DOI: 10.1007/s11837-007-0013-8  

    ISSN: 1047-4838

    eISSN: 1543-1851

  261. Superelasticity in Ti-10V-2Fe-3Al alloys with nitrogen addition Peer-reviewed

    T. Furuhara, S. Annaka, Y. Tomio, T. Maki

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 438 825-829 2006/12

    DOI: 10.1016/j.msea.2006.02.084  

    ISSN: 0921-5093

  262. Crystallography of ausformed upper bainite structure in Fe-9Ni-C alloys Peer-reviewed

    H. Kawata, K. Sakamoto, T. Moritani, S. Morito, T. Furuhara, T. Maki

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 438 140-144 2006/12

    DOI: 10.1016/j.msea.2006.02.175  

    ISSN: 0921-5093

  263. Relation between martensite morphology and volume change accompanying fcc to bcc martensitic transformation in Fe-Ni-Co alloys Peer-reviewed

    A. Shibata, H. Yonezawa, K. Yabuuchi, S. Morito, T. Furuhara, T. Maki

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 438 241-245 2006/12

    DOI: 10.1016/j.msea.2005.12.044  

    ISSN: 0921-5093

  264. Analytical transmission electron microscopy study of grain boundary precipitates in an Fe-Ni-Mn maraging alloy Peer-reviewed

    S. Hossein Nedjad, M. Nili Ahmadabadi, R. Mahmudi, T. Furuhara, T. Maki

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 438 288-291 2006/12

    DOI: 10.1016/j.msea.2006.02.097  

    ISSN: 0921-5093

  265. The morphology and crystallography of lath martensite in alloy steels Peer-reviewed

    S. Morito, X. Huang, T. Furuhara, T. Maki, N. Hansen

    ACTA MATERIALIA 54 (19) 5323-5331 2006/11

    DOI: 10.1016/j.actamat.2006.07.009  

    ISSN: 1359-6454

  266. Microstructure in a plasma-nitrided Fe-18 mass% Cr alloy Peer-reviewed

    G. Miyamoto, A. Yonemoto, Y. Tanaka, T. Furuhara, T. Maki

    ACTA MATERIALIA 54 (18) 4771-4779 2006/10

    DOI: 10.1016/j.actamat.2006.06.006  

    ISSN: 1359-6454

  267. Crystallography of upper bainite in Fe-Ni-C alloys Peer-reviewed

    T. Furuhara, H. Kawata, S. Morito, T. Maki

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 431 (1-2) 228-236 2006/09

    DOI: 10.1016/j.msea.2006.06.032  

    ISSN: 0921-5093

  268. High resolution transmission electron microscopy study on the nano-scale twinning of theta-NiMn precipitates in an Fe-Ni-Mn maraging alloy Peer-reviewed

    S. Hossein Nedjad, M. Nili Ahmadabadi, T. Furuhara, T. Maki

    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 203 (9) 2229-2235 2006/07

    DOI: 10.1002/pssa.200566023  

    ISSN: 1862-6300

  269. High resolution transmission electron microscopy study on the nano-scale twinning of theta-NiMn precipitates in an Fe-Ni-Mn maraging alloy Peer-reviewed

    S. Hossein Nedjad, M. Nili Ahmadabadi, T. Furuhara, T. Maki

    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 203 (9) 2229-2235 2006/07

    DOI: 10.1002/pssa.200566023  

    ISSN: 1862-6300

  270. Tempered microstructure and mechanical properties of ultra-high carbon steel Peer-reviewed

    S.-Q. Shi, B.-Q. Wang, T. Furuhara, T. Maki, G. Chen

    Journal of Iron and Steel Research 18 (3) 38-41 2006/05

  271. On the mechanism of formation of diffusional plate-shaped transformation products Peer-reviewed

    HI Aaronson, T Furuhara, MG Hall, JP Hirth, JF Nie, GR Purdy, WT Reynolds

    ACTA MATERIALIA 54 (5) 1227-1232 2006/03

    DOI: 10.1016/j.actamat.2005.10.049  

    ISSN: 1359-6454

  272. Crystallography and interphase boundary of (MnS plus VC) complex precipitate in austenite Invited Peer-reviewed

    T Furuhara, T Kimori, T Maki

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 37A (3A) 951-959 2006/03

    ISSN: 1073-5623

  273. General discussion session of the 2004 Hume-Rothery Symposium on "The structure and diffusional growth mechanisms of irrational interphase boundaries" Peer-reviewed

    BC Muddle, HI Aaronson, PM Kelly, GR Srinivasan, PM Kelly, DE Laughlin, WT Reynolds, M Braun, G Purdy, WZ Zhang, JM Howe, MX Zhang, WA Soffa, MI Baskes, VK Vasudevan, C DeTavernier, T Furuhara, M Hillert, RC Pond, GJ Shiflet

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 37A (3A) 961-974 2006/03

    ISSN: 1073-5623

  274. Evolution of precipitate coarsening reaction in a nanostructured Fe-Ni-Mn maraging alloy Peer-reviewed

    S. Hossein Nedjad, M. Nili-Ahmadabadi, T. Furuhara, T. Maki

    Solid State Phenomena 114 159-164 2006

    Publisher: Trans Tech Publications Ltd

    DOI: 10.4028/www.scientific.net/SSP.114.159  

    ISSN: 1662-9779

  275. Effect of nitrogen on corrosion behavior of 28Cr-7Ni duplex and microduplex stainless steels in air-saturated 3.5 wt% NaCl solution Peer-reviewed

    G Lothongkum, P Wongpanya, S Morito, T Furuhara, T Maki

    CORROSION SCIENCE 48 (1) 137-153 2006/01

    DOI: 10.1016/j.corsci.2004.11.017  

    ISSN: 0010-938X

    eISSN: 1879-0496

  276. Improvement of mechanical properties in a nanostructured Fe-Ni-Mn steel prepared by heavy plastic deformation Peer-reviewed

    SH Nedjad, MN Ahmadabadi, R Mahmudi, T Furuhara, T Maki

    NANOSTRUCTURED MATERIALS BY HIGH-PRESSURE SEVERE PLASTIC DEFORMATION 212 265-+ 2006

    ISSN: 1568-2609

  277. Refinement of Cementite in Lath Martensite by Rapid-heating Tempering Peer-reviewed

    T. Furuhara, K. Kobayashi, G. Miyamoto, T. Maki

    Proc. the 3rd International Conference on Advanced Structural Steels, 2006 379-383 2006

  278. The Effects of Tetragonality of Martensite and Volume Change Accompanying Martensitic Transformation on the Morphology of Alpha' Martensite in Iron Based Alloys Peer-reviewed

    A. Shibata, H. Shishido, H. Ogiso, T. Furuhara, T. Maki

    Proc. the 3rd International Conference on Advanced Structural Steels, 2006 445-459 2006

  279. Precipitation in a plasma nitrided Fe-1.0mass%Al alloy Peer-reviewed

    Y. Tomio, G. Miyamoto, T. Furuhara, T. Maki

    Proc. the 3rd International Conference on Advanced Structural Steels, 2006 460-464 2006

  280. Effect of Initial Microstructures on Plasma Nitriding Behavior of Fe-10%Cr Alloys Peer-reviewed

    G. Miyamoto, Y. Tanaka, T. Furuhara, T. Maki

    Proc. the 3rd International Conference on Advanced Structural Steels, 2006 686-690 2006

  281. Evolution of precipitate coarsening reaction in a nanostructured Fe-Ni-Mn maraging alloy Peer-reviewed

    S. Hossein Nedjad, M. Nili-Ahmadabadi, T. Furuhara, T. Maki

    HIGH PRESSURE TECHNOLOGY OF NANOMATERIALS 114 159-164 2006

    ISSN: 1012-0394

  282. Superelasticity in beta titanium alloys with nitrogen addition Peer-reviewed

    T Furuhara, S Annaka, T Maki

    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 14 (6) 761-764 2005/12

    DOI: 10.1361/105994905X75574  

    ISSN: 1059-9495

  283. Local orientation change inside lenticular martensite plate in Fe-33Ni alloy Peer-reviewed

    A Shibata, S Morito, T Furuhara, T Maki

    SCRIPTA MATERIALIA 53 (5) 597-602 2005/09

    DOI: 10.1016/j.scriptamat.2005.04.023  

    ISSN: 1359-6462

  284. Mechanism of network carbide precipitation inhibited by aluminum in ultra-high carbon steel Peer-reviewed

    S.-Q. Shi, N.-J. Gu, T. Furuhara, T. Maki, G. Chen

    Transactions of Materials and Heat Treatment 26 (4) 79-82 2005/04

  285. Microstructure changes of eutectoid pearlitic steel during cold rolling Peer-reviewed

    SH Sun, Y Xiong, WT Fu, GZ Xing, T Furuhara, T Maki

    ACTA METALLURGICA SINICA 41 (3) 267-270 2005/03

    ISSN: 0412-1961

  286. Grain boundary engineering for superplasticity in steels Invited Peer-reviewed

    T Furuhara, T Maki

    JOURNAL OF MATERIALS SCIENCE 40 (4) 919-926 2005/02

    DOI: 10.1007/s10853-005-6510-7  

    ISSN: 0022-2461

  287. Precipitation in plasma nitrided Fe-M(M=Ti, V, Al) alloys Peer-reviewed

    G Miyamoto, Y Tomio, T Furuhara, T Maki

    FUNCTIONALLY GRADED MATERIALS VIII 492-493 539-544 2005

    DOI: 10.4028/0-87849-970-9.539  

    ISSN: 0255-5476

    eISSN: 1662-9752

  288. Ultra-fine (alpha+theta) duplex structure formed by cold rolling and annealing of pearlite Peer-reviewed

    T Furuhara, T Mizoguchi, T Maki

    ISIJ INTERNATIONAL 45 (3) 392-398 2005

    DOI: 10.2355/isijinternational.45.392  

    ISSN: 0915-1559

  289. Microstructural evolution of pearlite in eutectoid Fe-C alloys during severe cold rolling Peer-reviewed

    WT Fu, Y Xiong, J Zhao, Y Li, T Furuhara, T Maki

    JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 21 (1) 25-27 2005/01

    ISSN: 1005-0302

  290. Effect of austenite grain size on the morphology and crystallography of lath martensite in low carbon steels Peer-reviewed

    S Morito, H Saito, T Ogawa, T Furuhara, T Maki

    ISIJ INTERNATIONAL 45 (1) 91-94 2005

    DOI: 10.2355/isijinternational.45.91  

    ISSN: 0915-1559

  291. Kinetics and crystallography of intragranular ferrite formed on MnS+V(C,N) complex precipitate in austenite Peer-reviewed

    T. Maki, T. Furuhara

    Proc. the Joint Conference HSLA Steels 2005 and ISUGS 2005 16-22 2005

  292. Effect of matrix recrystallization on morphology, crystallography and coarsening behavior of vanadium carbide in austenite Peer-reviewed

    Y Yazawa, T Furuhara, T Maki

    ACTA MATERIALIA 52 (12) 3727-3736 2004/07

    DOI: 10.1016/j.actamat.2004.04.027  

    ISSN: 1359-6454

  293. Control of cementite precipitation in lath martensite by rapid heating and tempering Peer-reviewed

    T Furuhara, K Kobayashi, T Maki

    ISIJ INTERNATIONAL 44 (11) 1937-1944 2004

    DOI: 10.2355/isijinternational.44.1937  

    ISSN: 0915-1559

  294. Effect of Mn and Si addition on microstructure and tensile properties of cold-rolled and annealed pearlite in eutectoid Fe-C alloys Peer-reviewed

    WT Fu, T Furuhara, T Maki

    ISIJ INTERNATIONAL 44 (1) 171-178 2004

    DOI: 10.2355/isijinternational.44.171  

    ISSN: 0915-1559

  295. Enhanced Structural Evolution by Martensitic Transformation and Deformation of IF Steels Peer-reviewed

    S. Morito, X. Huang, T. Furuhara, T. Maki, N. Hansen

    Proc. of the 25st RisO International Symposium on Materials Science, ed. by C. Gundlach, K. Haldrup, N. Hansen, X. Huang, D. Juul Jensen, T. Leffers, Z. J. Li, S. F. Nielsen, W. Pantleon, J. A. Wert and G. Winther, 2004, RisO National Laboratory, Denmark 453-458 2004

  296. Microstructure Formed by Hot Deformation in a Near βTitanium Alloy Peer-reviewed

    T. Furuhara, Y. Toji, T. Maki

    Proc. of the 10th World Conference on Titianium (Ti-2003 Science and Technology), G. Lutjering and J. Albrecht, Eds., Wiley-VCH, Weinheim, 2004 1219-1226 2004

  297. Morphology, substructure and crystallography of lath martensite in Fe-C alloys Peer-reviewed

    T Furuhara, S Morito, T Maki

    JOURNAL DE PHYSIQUE IV 112 255-258 2003/10

    DOI: 10.1051/jp4:2003877  

    ISSN: 1155-4339

  298. Interphase boundary structures of lath martensite and bainite in steel Peer-reviewed

    T Furuhara, N Miyajima, T Moritani, T Maki

    JOURNAL DE PHYSIQUE IV 112 319-322 2003/10

    DOI: 10.1051/jp4:2003892  

    ISSN: 1155-4339

  299. The morphology and crystallography of lath martensite in Fe-C alloys Peer-reviewed

    S Morito, H Tanaka, R Konishi, T Furuhara, T Maki

    ACTA MATERIALIA 51 (6) 1789-1799 2003/04

    DOI: 10.1016/S1359-6454(02)00577-3  

    ISSN: 1359-6454

  300. Crystallography of intragranular ferrite formed on (MnS + V(C, N)) complex precipitate in austenite Peer-reviewed

    G Miyamoto, T Shinyoshi, J Yamaguchi, T Furuhara, T Maki, R Uemori

    SCRIPTA MATERIALIA 48 (4) 371-377 2003/02

    DOI: 10.1016/S1359-6462(02)00451-7  

    ISSN: 1359-6462

  301. Microstructure and mechanical property of ultra-fine (ferrite plus cementite) duplex structure in high carbon steel Invited Peer-reviewed

    T Maki, T Furuhara

    THERMEC'2003, PTS 1-5 426-4 19-26 2003

    ISSN: 0255-5476

  302. Dynamic recovery and recrystallization in beta-titanium alloys Invited Peer-reviewed

    T Furuhara, Y Toji, H Abe, T Maki

    THERMEC'2003, PTS 1-5 426-4 655-660 2003

    ISSN: 0255-5476

  303. Multiphase crystallography in the nucleation of intragranular ferrite on MnS plus V(C, N) complex precipitate in austenite Peer-reviewed

    T Furuhara, T Shinyoshi, G Miyamoto, J Yamaguchi, N Sugita, N Kimura, N Takemura, T Maki

    ISIJ INTERNATIONAL 43 (12) 2028-2037 2003

    DOI: 10.2355/isijinternational.43.2028  

    ISSN: 0915-1559

  304. Nucleation of proeutectoid ferrite on complex precipitates in Austenite Peer-reviewed

    T Furuhara, J Yamaguchi, N Sugita, G Miyamoto, T Maki

    ISIJ INTERNATIONAL 43 (10) 1630-1639 2003

    DOI: 10.2355/isijinternational.43.1630  

    ISSN: 0915-1559

  305. Microstructures Developed by Diffusional Transformations from Fine-Grained Austenite Matrix Invited Peer-reviewed

    T. Furuhara, S. Morito, T. Maki

    Proc. of 2nd International Symposium on Ultrafine Grained Structures (ISGUS), Geelong, Australia, 2003 CD-ROM 2003

  306. Formation of Fine β Grains by Dymanic Recrystallization in β Titanium Alloys Peer-reviewed

    H. Abe, T. Furuhara, T. Maki

    Proc. of 2nd International Symposium on Ultrafine Grained Structures (ISGUS), Geelong, Australia, 2003 CD-ROM 2003

  307. Grain Size of Proeutectoid Ferrite Transformed from Fine-grained Austenite in Fe-1.5Mn-0.2C Alloys Peer-reviewed

    H. Saito, T. Furuhara, T. Maki

    Proc. of 2nd International Symposium on Ultrafine Grained Structures (ISGUS), Geelong, Australia, 2003 CD-ROM 2003

  308. Grain boundary character and superplasticity of fine-grained ultra-high carbon steel Peer-reviewed

    T Furuhara, E Sato, T Mizoguchi, S Furimoto, T Maki

    MATERIALS TRANSACTIONS 43 (10) 2455-2462 2002/10

    DOI: 10.2320/matertrans.43.2455  

    ISSN: 1345-9678

    eISSN: 1347-5320

  309. Interphase boundary structure with irrational orientation relationship formed in grain boundary precipitation Invited Peer-reviewed

    T Furuhara, K Oishi, T Maki

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 33 (8) 2327-2335 2002/08

    ISSN: 1073-5623

  310. Comparison of interphase boundary structure between bainite and martensite in steel Peer-reviewed

    T Moritani, N Miyajima, T Furuhara, T Maki

    SCRIPTA MATERIALIA 47 (3) 193-199 2002/08

    DOI: 10.1016/S1359-6462(02)00128-8  

    ISSN: 1359-6462

  311. Kinetics and Crystallography of intragranular pearlite transformation nucleated at (MnS plus VC) complex precipitates in hypereutectoid Fe-Mn-C alloys Peer-reviewed

    Z Guo, N Kimura, S Tagashira, T Furuhara, T Maki

    ISIJ INTERNATIONAL 42 (9) 1033-1041 2002

    DOI: 10.2355/isijinternational.42.1033  

    ISSN: 0915-1559

  312. Microstructure control by thermomechanical processing in beta-Ti-15-3 alloy Invited Peer-reviewed

    T Furuhara, T Maki, T Makino

    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 117 (3) 318-323 2001/11

    DOI: 10.1016/S0924-0136(01)00790-7  

    ISSN: 0924-0136

  313. On misfit-compensating ledges/disconnections Peer-reviewed

    MG Hall, T Furuhara, HI Aaronson, JP Hirth

    ACTA MATERIALIA 49 (17) 3487-3492 2001/10

    DOI: 10.1016/S1359-6454(01)00227-0  

    ISSN: 1359-6454

  314. The influence of (MnS+VC) complex precipitate on the crystallography of intergranular pearlite transformation in Fe-Mn-C hypereutectoid alloys Peer-reviewed

    ZH Guo, T Furuhara, T Maki

    SCRIPTA MATERIALIA 45 (5) 525-532 2001/09

    DOI: 10.1016/S1359-6462(01)01053-3  

    ISSN: 1359-6462

  315. Variant selection in heterogeneous nucleation on defects in diffusional phase transformation and precipitation Peer-reviewed

    T Furuhara, T Maki

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 312 (1-2) 145-154 2001/08

    DOI: 10.1016/S0921-5093(00)01904-3  

    ISSN: 0921-5093

  316. Microstructure development by thermomechanical processing in duplex stainless steel Invited Peer-reviewed

    T Maki, T Furuhara, K Tsuzaki

    ISIJ INTERNATIONAL 41 (6) 571-579 2001

    DOI: 10.2355/isijinternational.41.571  

    ISSN: 0915-1559

  317. Effect of hot deformation of beta matrix on the aged (alpha plus beta) microstructure and mechanical property in Ti-10V-2Fe-3Al alloy Peer-reviewed

    H Shintaku, Y Toji, T Furuhara, T Maki

    PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II 2647-2650 2001

  318. Interphase boundary structure between lath martensite and austenite in an Fe-Ni-Mn alloy Peer-reviewed

    N Miyajima, T Moritani, T Furuhara, T Maki

    PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II 2507-2510 2001

  319. Effect of Heating rate on Microstructure of Tempered Lath Martensite in a Medium Carbon Steel Peer-reviewed

    K. Kobayashi, T. Furuhara, T. Maki

    Proc. of the 2nd Asian Conf. on Heat Treatment of Materials 316-321 2001

  320. Formation of Ultra-Fine Grained (α+θ) Duplex Structure by Annealing of Heavily Cold Rolled Pearlite Peer-reviewed

    T. Mizoguchi, T. Furuhara, T. Maki

    Proc. of International Symposium on Ultrafine Grained Steels (ISUGS 2001), 2001, ISIJ 198-201 2001

  321. Role of defects on microstructure development of beta titanium alloys Invited Peer-reviewed

    T Furuhara

    METALS AND MATERIALS-KOREA 6 (3) 221-224 2000/06

    DOI: 10.1007/BF03028215  

    ISSN: 1225-9438

  322. Microtexture and electromigration-induced drift in electroplated damascene Cu Peer-reviewed

    J Proost, T Hirato, T Furuhara, K Maex, JP Celis

    JOURNAL OF APPLIED PHYSICS 87 (6) 2792-2802 2000/03

    DOI: 10.1063/1.372258  

    ISSN: 0021-8979

  323. Deformation microstructure and tensile strength of cold rolled pearlitic steel sheets Peer-reviewed

    S Tagashira, K Sakai, T Furuhara, T Maki

    ISIJ INTERNATIONAL 40 (11) 1149-1155 2000

    DOI: 10.2355/isijinternational.40.1149  

    ISSN: 0915-1559

    eISSN: 1347-5460

  324. Martensitic transformation in thin foils of an Fe-Ni-Co-Ti shape memory alloy Peer-reviewed

    S Morito, T Moritani, T Furuhara, T Maki

    SHAPE MEMORY MATERIALS 327-3 207-210 2000

    ISSN: 0255-5476

  325. Acceleration of Intragranular Nucleation of Ferrite and Pearlite at Inclusions by Hot Deformation of Austenite Peer-reviewed

    T. Furuhara, T. Maki

    Proc. of JJJ International Symposium, S.Yue and E. Essadiqi, Eds., 2000, CIM, Montreal, Quebec, Canada 465-473 2000

  326. Nucleation of Proeutectoid Ferrite on Complex Precipitates in Austenite Invited Peer-reviewed

    T. Furuhara, J. Yamaguchi, T. Maki

    Proc. of Microscopy and Microanalysis 2000: Philadelphia, PA, U.S.A. 340-341 2000

  327. Formation of Fine Grained Structure by Heavy Cold Rolling and Annealing in Steel Invited Peer-reviewed

    T. Maki, T. Furuhara

    Proc. of the 21st RisO International Symposium on Materials Science, ed. by N. Hansen, X. Huang and D. Juul Jensen, E. M. Lauridsen, T. Leffers, W. Pantleon, T. J. Sabin and J. A. Wert, 2000, RisO National Laboratory, Denmark 125-138 2000

  328. Microstructure development and superplasticity in (alpha+gamma) microduplex alloys with different matrix phases Peer-reviewed

    T Furuhara, Y Mizuno, T Maki

    MATERIALS TRANSACTIONS JIM 40 (8) 815-824 1999/08

    DOI: 10.2320/matertrans1989.40.815  

    ISSN: 0916-1821

  329. Formation of an (alpha+theta) microduplex structure without thermomechanical processing in superplastic ultrahigh carbon steels Peer-reviewed

    K Tsuzaki, E Sato, S Furimoto, T Furuhara, T Maki

    SCRIPTA MATERIALIA 40 (6) 675-681 1999/02

    DOI: 10.1016/S1359-6462(98)00486-2  

    ISSN: 1359-6462

  330. Superplasticity of (alpha+gamma) duplex stainless steel with elongated secondary phase Peer-reviewed

    T Furuhara, K Hikita, T Maki

    TOWARDS INNOVATION IN SUPERPLASTICITY II 304-3 53-58 1999

    ISSN: 0255-5476

  331. Microstructure change during superplastic deformation in (alpha+gamma) duplex stainless steel Peer-reviewed

    T Yamazaki, Y Mizuno, T Furuhara, T Maki

    TOWARDS INNOVATION IN SUPERPLASTICITY II 304-3 127-131 1999

    ISSN: 0255-5476

  332. Microstructure control for superplasticity of an ultra-high carbon steel Peer-reviewed

    E Sato, S Furimoto, T Furuhara, K Tsuzaki, T Maki

    TOWARDS INNOVATION IN SUPERPLASTICITY II 304-3 133-138 1999

    ISSN: 0255-5476

  333. Interphase boundary structure of grain boundary precipitate in a Ni-Cr alloy Peer-reviewed

    K Oishi, T Furuhara, T Maki

    JAPAN INSTITUTE OF METALS, PROCEEDINGS, VOL 12, (JIMIC-3), PTS 1 AND 2 573-576 1999

  334. Recovery and Recrystallization of Lath Martensite in an Ultra-low Carbon Steel Peer-reviewed

    S. Morito, H. Tanaka, T. Furuhara, T. Maki

    Proc. of the 4th International Conference on Recrystallization and Related Phenomena (RECRYSTALLIZATION 99), JIM 295-300 1999

  335. Toward the overthrow of half of a major paradigm for interfacial structure deduction, with special attention to the massive transformation in Ti-46.5 A/O Al alloy Peer-reviewed

    JF Nie, BC Muddle, T Furuhara, HI Aaronson

    SCRIPTA MATERIALIA 39 (4-5) 637-645 1998/08

    DOI: 10.1016/S1359-6462(98)00208-5  

    ISSN: 1359-6462

  336. Morphology and crystallography of alpha precipitates in beta Ti-Mo binary alloys Peer-reviewed

    T Furuhara, T Makino, Y Idei, H Ishigaki, A Takada, T Maki

    MATERIALS TRANSACTIONS JIM 39 (1) 31-39 1998/01

    DOI: 10.2320/matertrans1989.39.31  

    ISSN: 0916-1821

  337. Effect of beta recovery treatment prior to aging on the (alpha+beta) microstructure and mechanical properties of Ti-15V-3Cr-3Sn-3Al Peer-reviewed

    T Furuhara, T Nagaoka, T Maki

    NON-AEROSPACE APPLICATIONS OF TITANIUM 45-52 1998

  338. Mobility of structural ledges Peer-reviewed

    HI Aaronson, JM Howe, MG Hall, T Furuhara, JP Hirth

    SCRIPTA MATERIALIA 37 (9) 1301-1307 1997/11

    DOI: 10.1016/S1359-6462(97)00202-9  

    ISSN: 1359-6462

  339. Interphase Boundary Structure and Transformation Mechanism in Diffusional Phase Transformations Peer-reviewed

    T. Furuhara, T. Maki

    Recent Reasearch Development in Metallurgical and Materials Science, Research Signpost, Trivandrum, India 1 39-49 1997

  340. Microstructure Development by Thermomechanical Processing in Ti-15V-3Cr-3Sn-3Al Alloy Invited Peer-reviewed

    T. Maki, T. Nagaoka, T. Furuhara

    Proc. Int. Symp. on Drawing, Processing and Properties of Advanced Engineering Materials (ISAEM-97), Toyohashi, JSPS 189-198 1997

  341. Microstructure development by thermomechanical processing in duplex stainless steel and beta titanium alloy Invited Peer-reviewed

    T Maki, T Furuhara, K Tsuzaki

    THERMEC '97 - INTERNATIONAL CONFERENCE ON THERMOMECHANICAL PROCESSING OF STEELS AND OTHER MATERIALS, VOLS I-II 77-86 1997

  342. Microstructure development in a thermomechanically processed Ti-15V-3Cr-3Sn-3Al alloy Peer-reviewed

    T Makino, R Chikaizumi, T Nagaoka, T Furuhara, T Makino

    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 213 (1-2) 51-60 1996/08

    ISSN: 0921-5093

  343. Crystallography of grain boundary alpha precipitates in a beta titanium alloy Peer-reviewed

    T Furuhara, S Takagi, H Watanabe, T Maki

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 27 (6) 1635-1646 1996/06

    DOI: 10.1007/BF02649821  

    ISSN: 1073-5623

  344. Accommodation of transformation strain during the growth of precipitates Peer-reviewed

    T Furuhara, T Maki

    SCRIPTA MATERIALIA 34 (6) 929-934 1996/03

    DOI: 10.1016/1359-6462(95)00600-1  

    ISSN: 1359-6462

  345. Surface relief effect and atomic site correspondence in the grain boundary alpha precipitation in a beta Ti-Cr alloy Peer-reviewed

    T Furuhara, T Ogawa, T Maki

    SCRIPTA MATERIALIA 34 (3) 381-386 1996/02

    ISSN: 1359-6462

  346. Morphology and crystallography of hcp Zn crystals electrodeposited on bcc Fe-3%Si single crystal substrates Peer-reviewed

    T Furuhara, N Sugita, T Maki

    ISIJ INTERNATIONAL 36 (5) 584-591 1996

    DOI: 10.2355/isijinternational.36.584  

    ISSN: 0915-1559

  347. Effect of Mo Content on the Mophology and Crystallography of α Precipitate in β Ti-Mo Binary Alloys Invited Peer-reviewed

    T. Furuhara, T. Makino, Y. Idei, T. Maki

    Proc. of 1st Int. Conf. on Phase Transformations, Islamabad, Pakistan, ed. by A. ul Haq., A. Tauqir and A. Q. Khan, 1996, A. Q. Khan Research Laboratories 1-7 1996

  348. Crystallography and Interphase Boundary Structure of B1-type Precipitates in Austenite Peer-reviewed

    T. Furuhara, N. Sugita, T. Maki

    Interface Science and Materials Interconnection (Proc. of 8th Int. Conf. on Intragranular and Interphase Boundaries in Materials, Toyama, Japan), ed. by Y. Ishida, M. Morita, T. Suga, H. Ohashi, J. Echigoya and H. Ichinose, (1996), JIM 363-366 1996

  349. ATOMIC-STRUCTURE OF INTERPHASE BOUNDARY OF AN ALPHA-PRECIPITATE PLATE IN A BETA-TI-CR ALLOY Peer-reviewed

    T FURUHARA, T OGAWA, T MAKI

    PHILOSOPHICAL MAGAZINE LETTERS 72 (3) 175-183 1995/09

    DOI: 10.1080/09500839508242449  

    ISSN: 0950-0839

  350. ATOMIC-STRUCTURE OF INTERPHASE BOUNDARY ENCLOSING BCC PRECIPITATE FORMED IN FCC MATRIX IN A NI-CR ALLOY Peer-reviewed

    T FURUHARA, K WADA, T MAKI

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 26 (8) 1971-1978 1995/08

    DOI: 10.1007/BF02670668  

    ISSN: 1073-5623

  351. TRANSMISSION ELECTRON-MICROSCOPY OF (332)[113]-DEFORMATION TWIN IN TI-15V-3CR-3SN-3AL ALLOY Peer-reviewed

    T FURUHARA, K KISHIMOTO, T MAKI

    MATERIALS TRANSACTIONS JIM 35 (12) 843-850 1994/12

    DOI: 10.2320/matertrans1989.35.843  

    ISSN: 0916-1821

  352. EFFECT OF FERRITE SUBSTRUCTURE ON PRECIPITATION OF FE3C AT MNS IN AN ULTRA-LOW CARBON-STEEL Peer-reviewed

    T FURUHARA, S SHIMOHATA, K WADA, T MAKI

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN 80 (4) 318-323 1994/04

    DOI: 10.2355/tetsutohagane1955.80.4_318  

    ISSN: 0021-1575

  353. THE ROLE OF MATRIX DISLOCATIONS IN GROWTH LEDGE FORMATION ON FCC-BCC INTERFACES IN A NI-CR ALLOY Peer-reviewed

    T FURUHARA, T MAKI

    PHILOSOPHICAL MAGAZINE LETTERS 69 (1) 31-36 1994/01

    DOI: 10.1080/09500839408242434  

    ISSN: 0950-0839

  354. CRYSTALLOGRAPHY OF alpha-SIDEPLATES IN A beta-TITANIUM ALLOY Peer-reviewed

    T FURUHARA, T MAKINO, H WATANABE, T MAKI

    PROCEEDINGS OF AN INTERNATIONAL CONFERENCE ON SOLID - SOLID PHASE TRANSFORMATIONS 237-242 1994

  355. MORPHOLOGICAL TRANSITION OF alpha-PLATES IN TI-X BINARY ALLOYS Peer-reviewed

    T MAKINO, K IGARASHI, T FURUHARA, T MAKI

    PROCEEDINGS OF AN INTERNATIONAL CONFERENCE ON SOLID - SOLID PHASE TRANSFORMATIONS 207-212 1994

  356. VARIATION IN MORPHOLOGY OF alpha-PHASE WITH AGING TEMPERATURE IN A TI-15V-3CR-3SN-3AL ALLOY Peer-reviewed

    T MAKINO, T FURUHARA, T MAKI

    METALLURGY AND TECHNOLOGY OF PRACTICAL TITANIUM ALLOYS 63-70 1994

  357. EFFECT OF PRIOR COLD ROLLING ON alpha-PRECIPITATION IN A TI-15V-3CR-3SN-3AL ALLOY Peer-reviewed

    T FURUHARA, H NAKAMORI, S TAKAGI, T MAKI

    METALLURGY AND TECHNOLOGY OF PRACTICAL TITANIUM ALLOYS 173-180 1994

  358. Effect of Prior Cold Rolling on α Precipitation in a Ti-15V-3Cr-3Sn-3Al Alloy Peer-reviewed

    T. Furuhara, H. Nakamori, S. Takagi, T. Maki

    Proc. of 3rd Japan International SAMPE Symposium (1993), ed. by T. Kishi, N. Takeda and Y. Kagawa 1709-1716 1993

  359. Variation in Morphology of α Phase with Aging Temperature in a Ti-15V-3Cr-3Sn-3Al Alloy Peer-reviewed

    T. Makino, T. Furuhara, T. Maki

    Proc. of 3rd Japan International SAMPE Symposium (1993), ed. by T. Kishi, N. Takeda and Y. Kagawa 1723-1730 1993

  360. Why Does the Phenomenologocal Theory of Martensite Crystallography Sometimes Quantitatively Describe the Surface Relief Effect and the Transformation Crystallography of Precipitate Plates ? Invited Peer-reviewed

    H. I. Aaronson, T. Furuhara, J. M. Howe, W. T. Reynolds, Jr, G. Spanos

    Interfaces: Structure and Properties ed. by S. Ranganathan, C. S. Pande, B. B. Rath and D. A. Smith 169-193 1993

  361. CRYSTALLOGRAPHY OF ALPHA-PHASE PRECIPITATED ON DISLOCATIONS AND DEFORMATION TWIN BOUNDARIES IN A BETA-TITANIUM ALLOY Peer-reviewed

    T FURUHARA, H NAKAMORI, T MAKI

    JOURNAL OF THE JAPAN INSTITUTE OF METALS 56 (9) 1020-1029 1992/09

    ISSN: 0021-4876

    eISSN: 1880-6880

  362. INTERFACIAL STRUCTURE OF GRAIN-BOUNDARY PRECIPITATE IN A NI-45 MASS PERCENT CR ALLOY Peer-reviewed

    T FURUHARA, T MAKI

    MATERIALS TRANSACTIONS JIM 33 (8) 734-739 1992/08

    DOI: 10.2320/matertrans1989.33.734  

    ISSN: 0916-1821

  363. CRYSTALLOGRAPHY OF ALPHA PHASE PRECIPITATED ON DISLOCATIONS AND DEFORMATION TWIN BOUNDARIES IN A BETA TITANIUM-ALLOY Peer-reviewed

    T FURUHARA, H NAKAMORI, T MAKI

    MATERIALS TRANSACTIONS JIM 33 (6) 585-595 1992/06

    DOI: 10.2320/matertrans1989.33.585  

    ISSN: 0916-1821

  364. COMPUTER MODELING OF PARTIALLY COHERENT BCC - HCP BOUNDARIES Peer-reviewed

    T FURUHARA, HI AARONSON

    ACTA METALLURGICA ET MATERIALIA 39 (11) 2857-2872 1991/11

    DOI: 10.1016/0956-7151(91)90103-8  

    ISSN: 0956-7151

  365. INTERPHASE BOUNDARY STRUCTURES OF INTRAGRANULAR PROEUTECTOID ALPHA-PLATES IN A HYPOEUTECTOID TI-CR ALLOY Peer-reviewed

    T FURUHARA, JM HOWE, HI AARONSON

    ACTA METALLURGICA ET MATERIALIA 39 (11) 2873-2886 1991/11

    DOI: 10.1016/0956-7151(91)90104-9  

    ISSN: 0956-7151

  366. CRYSTALLOGRAPHY AND INTERFACIAL STRUCTURE OF PROEUTECTOID ALPHA-GRAIN BOUNDARY ALLOTRIOMORPHS IN A HYPOEUTECTOID TI-CR ALLOY Peer-reviewed

    T FURUHARA, HI AARONSON

    ACTA METALLURGICA ET MATERIALIA 39 (11) 2887-2899 1991/11

    DOI: 10.1016/0956-7151(91)90105-A  

    ISSN: 0956-7151

  367. Thickening of grain-boundary α allotriomorphs in a Ti-Cr alloy by multiple sets of ledges Peer-reviewed

    M. Enomoto, H. I. Aaronson, T. Furuhara

    Metallurgical Transactions A 22 (6) 1341-1348 1991/06

    Publisher: Springer-Verlag

    DOI: 10.1007/BF02660667  

    ISSN: 1073-5623 1543-1940

  368. THICKENING OF GRAIN-BOUNDARY ALPHA-ALLOTRIOMORPHS IN A TI-CR ALLOY BY MULTIPLE SETS OF LEDGES Peer-reviewed

    M ENOMOTO, HI AARONSON, T FURUHARA

    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 22 (6) 1341-1348 1991/06

    DOI: 10.1007/BF02660667  

    ISSN: 0360-2133

  369. THE MATS HILLERT APPROACH TO GROWTH-KINETICS OF DIFFUSIONAL PHASE-TRANSFORMATIONS IN CRYSTALLINE SOLIDS Invited Peer-reviewed

    HI AARONSON, T FURUHARA, M ENOMOTO

    SCANDINAVIAN JOURNAL OF METALLURGY 20 (1) 18-31 1991

    ISSN: 0371-0459

  370. CRYSTALLOGRAPHIC AND MECHANISTIC ASPECTS OF GROWTH BY SHEAR AND BY DIFFUSIONAL PROCESSES Peer-reviewed

    HI AARONSON, T FURUHARA, JM RIGSBEE, WT REYNOLDS, JM HOWE

    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 21 (9) 2369-2409 1990/09

    DOI: 10.1007/BF02646984  

    ISSN: 0360-2133

  371. INTERPHASE BOUNDARY STRUCTURES ASSOCIATED WITH DIFFUSIONAL PHASE-TRANSFORMATIONS IN TI-BASE ALLOYS Invited Peer-reviewed

    T FURUHARA, HJ LEE, ESK MENON, HI AARONSON

    METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 21 (6) 1627-1643 1990/06

    DOI: 10.1007/BF02672578  

    ISSN: 0360-2133

  372. Further Rebuttal to J. W. Christian and D. V. Edmonds Peer-reviewed

    H. I. Aaronson, J. M. Rigsbee, T. Furuhara, N. Prabhu, W. T. Reynolds, Jr, J. M. Howe

    Scripta Metallurgica 23 (2) 279-284 1989

    DOI: 10.1016/0036-9748(89)90426-2  

  373. ON THE MECHANISMS OF INTERPHASE BOUNDARY CARBIDE PRECIPITATION Peer-reviewed

    T FURUHARA, HI AARONSON

    SCRIPTA METALLURGICA 22 (10) 1635-1637 1988/10

    DOI: 10.1016/S0036-9748(88)80256-4  

    ISSN: 0036-9748

  374. INTERFACIAL STRUCTURE OF GRAIN-BOUNDARY ALPHA-ALLOTRIOMORPHS IN A HYPOEUTECTOID TI-CR ALLOY Peer-reviewed

    T FURUHARA, AM DALLEY, HI AARONSON

    SCRIPTA METALLURGICA 22 (9) 1509-1514 1988/09

    DOI: 10.1016/S0036-9748(88)80029-2  

    ISSN: 0036-9748

  375. Influence of the Structure and Chemistry of α/γ Boundaries upon Grain Boundary Allotriomorph Growth Kinetics and Composition in Fe-C and Fe-C-X Alloys Invited Peer-reviewed

    H. I. Aaronson, M. Enomoto, T. Furuhara, W. T. Reynolds, J

    Proc. of International Conference on Physical Metallurgy of Thermomechanical Processing of Steels and Other MetalsVol.1, ed. by I. Tamura, ISIJ, Tokyo, Japan 80-89 1988

  376. ON THE FATE OF MISFIT DISLOCATIONS OVERRUN BY GROWTH LEDGES Peer-reviewed

    JM HOWE, T ABINANDANAN, CS CHIANG, T FURUHARA, N PRABHU, HI AARONSON

    SCRIPTA METALLURGICA 21 (12) 1639-1643 1987/12

    DOI: 10.1016/0036-9748(87)90149-9  

    ISSN: 0036-9748

  377. EFFECTS OF AUSTENITIZING TEMPERATURE ON THE KINETICS OF BAINITE REACTION AT CONSTANT AUSTENITE GRAIN-SIZE IN FE-C AND FE-NI-C ALLOYS Peer-reviewed

    M UMEMOTO, T FURUHARA, TAMURA, I

    ACTA METALLURGICA 34 (11) 2235-2245 1986/11

    DOI: 10.1016/0001-6160(86)90169-0  

    ISSN: 0001-6160

  378. COMPUTER-SIMULATION OF ISOTHERMAL TRANSFORMATION DIAGRAM OF STEELS Peer-reviewed

    M UMEMOTO, T FURUHARA, TAMURA, I

    TRANSACTIONS OF THE IRON AND STEEL INSTITUTE OF JAPAN 23 (7) B263-B263 1983

    ISSN: 0021-1583

Show all ︎Show first 5

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    MATEC Web of Conferences, The 14th World Conference on Titanium (Ti 2019) 321 12006 2020

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    Yongjie Zhang, Goro Miyamoto, Kunio Shinbo, Tadashi Furuhara

    Journal of the Japan Society of Heat Treatment 57 (1) 1-2 2017/02

  29. 低窒素鋼のベイナイト変態に及ぼす合金元素の影響

    島谷将太, 佐藤充孝, 宮本吾郎, 古原忠

    材料とプロセス(CD-ROM) 30 (2) 2017

    ISSN: 1882-8922

  30. 鉄-窒素マルテンサイト組織からのオーステナイト逆変態挙動

    松本宗, 佐藤充孝, 宮本吾郎, 古原忠

    材料とプロセス(CD-ROM) 30 (2) 2017

    ISSN: 1882-8922

  31. Fe-0.3N(-1M)マルテンサイト組織からのオーステナイト逆変態挙動

    松本宗, 佐藤充孝, 宮本吾郎, 古原忠

    日本熱処理技術協会講演大会講演概要集 84th 2017

  32. 窒素オーステナイトのベイナイト変態に及ぼす合金元素の影響

    島谷将太, 佐藤充孝, 宮本吾郎, 古原忠

    日本金属学会東北支部研究発表大会予稿集 16th 2017

  33. Analysis of recrystallization behavior of hot-deformed austenite reconstructed from EBSD orientation maps of lath martensite

    Manabu Kubota, Kohsaku Ushioda, Goro Miyamoto, Tadashi Furuhara

    Materials Science Forum 879 2389-2394 2017

    Publisher: Trans Tech Publications Ltd

    DOI: 10.4028/www.scientific.net/MSF.879.2389  

    ISSN: 0255-5476

    eISSN: 1662-9752

  34. Report on The 9th Pacific Rim International Conference on Advanced Materials and Processing

    Tadashi Furuhara, Haruyuki Inui, Tomoyuki Kakeshita, Minoru Nishida, Masahiko Ikeda, Seiji Miura, Yoshimasa Kajiwara

    Materia Japan 55 (12) 615-618 2016/12

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.55.615  

    ISSN: 1340-2625

  35. 鉄のガス窒化における組織制御とその摺動特性

    孟 凡輝, 小林修一, 宮本吾郎, 古原 忠

    Mechanical Surface Tech 031 (31) 32-35 2016/04

    Publisher: メカニカル・テック社

  36. 窒素マルテンサイトの焼戻し挙動に及ぼす添加元素の影響

    山光一央, 佐藤充孝, 宮本吾郎, 古原忠

    材料とプロセス(CD-ROM) 29 (2) 2016

    ISSN: 1882-8922

  37. Observation and Understanding of Microstructure in Steels

    Goro Miyamoto, Tadashi Furuhara

    Ferrum 21 (11) 645-650 2016

    Publisher: 日本鉄鋼協会

    ISSN: 1341-688X

  38. Three Dimensional Analyses of Low Angle Boundaries in Ultra-low Carbon Lath Martensite

    Morito Shigekazu, Pham Anh Hoang, Ohba Takuya, Hayashi Taisuke, Furuhara Tadashi, Miyamoto Goro

    Materia Japan 55 (12) 594-594 2016

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.55.594  

    ISSN: 1340-2625

  39. 3D Observation on Nano-sized VC Precipitates Formed in a Low Carbon Steel through Interphase Precipitation

    Sekido Nobuaki, Kamikawa Naoya, Tsuzaki Kaneaki, Ohmura Takahito, Hara Toru, Miyamoto Goro, Furuhara Tadashi

    Materia Japan 55 (12) 593-593 2016

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.55.593  

    ISSN: 1340-2625

  40. Nitriding of Steels : Microstructure and Properties

    Tadashi Furuhara, Goro Miyamoto

    Journal of the Japan Society for Heat Treatment 55 (4) 264-270 2015/08

    Publisher: 日本熱処理技術協会

    ISSN: 0288-0490

  41. Microstructure Control of Multiphase Steels through Phase Transformations

    Tadashi Furuhara

    Journal of the Japan Society for Heat Treatment 55 (3) 154-159 2015/06

    Publisher: 日本熱処理技術協会

    ISSN: 0288-0490

  42. ミニ特集「シンクロ型LPSO構造の材料科学」企画にあたって

    古原 忠

    Materia Japan 54 (2) 43 2015/02

    DOI: 10.2320/materia.54.50  

  43. Improvement of Strength and Ductility of Steels Using Nano-precipitation

    Kamikawa Naoya, Miyamoto Goro, Furuhara Tadashi

    Materia Japan 54 (1) 3-11 2015

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.54.3  

    ISSN: 1340-2625

  44. Special Issue on Long-Period Stacking Ordered Structure and Its Related Materials II PREFACE

    Tadashi Furuhara, Hiroshi Ohtani, Kenji Higashida, Kazuya Aizawa, Takashi Kamiyama, Yoshito Kawamura

    MATERIALS TRANSACTIONS 56 (7) 905-905 2015

    ISSN: 1345-9678

    eISSN: 1347-5320

  45. Crystallographic Restriction in Martensite and Bainite Transformations in Steels

    Goro Miyamoto, Takeshi Kaneshita, Tadachika Chiba, Tadashi Furuhara

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS 79 (7) 339-347 2015

    DOI: 10.2320/jinstmet.J2015017  

    ISSN: 0021-4876

    eISSN: 1880-6880

  46. Special Issue on Long-Period Stacking Ordered Structure and Its Related Materials II PREFACE

    Tadashi Furuhara, Hiroshi Ohtani, Kenji Higashida, Kazuya Aizawa, Takashi Kamiyama, Yoshito Kawamura

    MATERIALS TRANSACTIONS 56 (7) 905-905 2015

    ISSN: 1345-9678

    eISSN: 1347-5320

  47. PTCLab - A free and open source program for calculating phase transformation crystallography

    X. F. Gu, T. Furuhara, W. Z. Zhang

    PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 875-876 2015/01/01

  48. Crystallographic analysis of martensite and bainite structures by SEM/EBSD method

    Goro Miyamoto, Tadashi Furuhara

    PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 679-680 2015/01/01

  49. Quantitative metallography for industrial use on martensitic steels

    A. Stormvinter, A. Borgenstam, G. Miyamoto, T. Furuhara, H. Kristoffersen

    PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 539-546 2015/01/01

  50. Controlling of abnormal austenite grain growth in banded ferrite/pearlite steel by cold deformation

    Xianguang Zhang, Kiyotaka Matsuura, Munekazu Ohno, Goro Miyamoto, Tadashi Furuhara

    PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 33-34 2015/01/01

  51. Alloying effects on micro structure of fe-1mass%m binary alloys treated by nitriding and quenching process

    H. Kubo, G. Miyamoto, T. Furuhara

    PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 29-30 2015/01/01

  52. Dominating factor on the dispersion of vc interphase precipitation in V-added steels

    Y. J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara

    PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 191-192 2015/01/01

  53. Grain refinement by cyclic displacive forward/reverse transformation

    T. Chiba, G. Miyamoto, T. Furuhara

    PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 561-562 2015/01/01

  54. Importance of phase transformations in development of modern high strength steels

    Tadashi Furuhara, Naoya Kamikawa, Goro Miyamoto

    PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 15-16 2015/01/01

  55. Strengthening of medium carbon forging steels by interphase precipitation

    T. Furuhara, G. Miyamoto, N. Kamikawa

    International Conference on Advances in Metallurgy of Long and Forged Products 2015/01/01

  56. 加工熱処理の金属学

    古原 忠

    素形材 55 (8) 2-9 2014/09

  57. Strengthening of Steels by Nano-sized Precipitation

    Tadashi Furuhara

    Sanyo Technical Report 21 (1) 2-9 2014/06

    Publisher: 山陽特殊製鋼研究・開発センター

    ISSN: 1340-6825

  58. Tensile Behavior of Ti, Mo-added Low Carbon Steels with Interphase Precipitation (vol 54, pg 212, 2014)

    Naoya Kamikawa, Yoshihisa Abe, Goro Miyamoto, Yoshimasa Funakawa, Tadashi Furuhara

    ISIJ INTERNATIONAL 54 (2) 474-474 2014

    DOI: 10.2355/isijinternational.54.474  

    ISSN: 0915-1559

    eISSN: 1347-5460

  59. Plasma Nitriding Behavior of Fe-C-M (M = Al, Cr, Mn, Si) Ternary Martensitic Steels (vol 45, pg 239, 2014)

    Yusaku Tomio, Shigeki Kitsuya, Keiichiro Oh-Ishi, Kazuhiro Hono, Goro Miyamoto, Tadashi Furuhara

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 45A (1) 529-529 2014/01

    DOI: 10.1007/s11661-013-2058-3  

    ISSN: 1073-5623

    eISSN: 1543-1940

  60. Thermomechanical Processing of Steel-Past, Present and Future

    Tadashi Maki, Tadashi Furuhara, Nobuhiro Tsuji, Shigekazu Morito, Goro Miyamoto, Akinobu Shibata

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN 100 (9) 1062-1075 2014

    DOI: 10.2355/tetsutohagane.100.1062  

    ISSN: 0021-1575

    eISSN: 1883-2954

  61. Erratum: Tensile behavior of Ti, Mo-added low carbon steels with interphase precipitation (ISIJ International (2014) 54:1 (212-221))

    Naoya Kamikawa, Yoshihisa Abe, Goro Miyamoto, Yoshimasa Funakawa, Tadashi Furuhara

    ISIJ International 54 474 2014/01/01

    DOI: 10.2355/isijinternational.54.474  

    ISSN: 0915-1559

  62. Erratum to: Plasma Nitriding Behavior of Fe-C-M (M = Al, Cr, Mn, Si) Ternary Martensitic Steels(Metallurgical and Materials Transactions A, (2014), DOI: 10.1007/s11661-013-1991-5)

    Yusaku Tomio, Shigeki Kitsuya, Keiichiro Oh-ishi, Kazuhiro Hono, Goro Miyamoto, Tadashi Furuhara

    Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 45 (1) 529 2014/01/01

    Publisher: Springer Boston

    DOI: 10.1007/s11661-013-2058-3  

    ISSN: 1073-5623

  63. Strengthening of Steels by Nano-sized Precipitation

    FURUHARA Tadashi, MIYAMOTO Goro, KAMIKAWA Naoya

    Journal of the Japan Society for Technology of Plasticity 54 (633) 873-876 2013/10/25

    Publisher: The Japan Society for Technology of Plasticity

    DOI: 10.9773/sosei.54.873  

    ISSN: 0038-1586

  64. Atomistic Effects in Migrating Interphase Interfaces-Recent Progress and Future Study Foreword

    Tadashi Furuhara, Jian-Feng Nie, Wenzheng Zhang, James M. Howe, Sudarsanam Babu, Hatem S. Zurob

    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 44A (8) 3434-3435 2013/08

    DOI: 10.1007/s11661-013-1710-2  

    ISSN: 1073-5623

  65. 中炭素鋼ラスマルテンサイトの三次元構造

    Shigekazu Morito, Kenta Ichinose, Takuya Ohba, Taisuke Hayashi, Tadashi Furuhara, Goro Miyamoto

    Journal of the Japan Society for Heat Treatment 51 (3) 97-98 2013/06

  66. Special Issue on Long-Period Stacking Ordered Structure and Its Related Materials (I) PREFACE

    Tadashi Furuhara, Hiroshi Ohtani, Tetsuya Ohashi, Kenji Higashida, Kazuya Aizawa, Takashi Kamiyama, Yoshito Kawamura

    MATERIALS TRANSACTIONS 54 (5) 631-631 2013/05

    ISSN: 1345-9678

    eISSN: 1347-5320

  67. Quantitative measurement of carbon content in Fe-C binary alloys by atom probe tomography (vol 67, pg 999, 2012)

    Goro Miyamoto, Kunio Shinbo, Tadashi Furuhara

    SCRIPTA MATERIALIA 68 (8) 658-658 2013/04

    DOI: 10.1016/j.scriptamat.2013.01.001  

    ISSN: 1359-6462

  68. PRICM-8参加報告

    掛下知行, 古原 忠, 乾 晴行

    Materia Japan 52 (12) 580-580 2013/01

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.52.580  

    ISSN: 1340-2625

  69. Preface

    Tadashi Furuhara, Hiroshi Ohtani, Tetsuya Ohashi, Kenji Higashida, Kazuya Aizawa, Takashi Kamiyama, Yoshito Kawamura

    Materials Transactions 54 (5) 631 2013

    DOI: 10.2320/matertrans.MPR2013902  

    ISSN: 1345-9678

  70. Special issue on new functions and properties of engineering materials created by designing and processing II

    Mitsuo Niinomi, Tadashi Furuhara, Akihiko Chiba, Takayuki Narushima

    Materials Transactions 54 (8) 1241 2013

    DOI: 10.2320/matertrans.MPR2013904  

    ISSN: 1345-9678

  71. Carbide-containing bainite in steels

    T. Furuhara

    Phase Transformations in Steels 1 417-435 2012/05

    Publisher: Elsevier Ltd

    DOI: 10.1533/9780857096104.3.417  

  72. YIELDING BEHAVIOR OF ULTRAFINE-GRAINED AND SUB-GRAINED HIGH PURITY ALUMINUM

    Naoya Kamikawa, Taisuke Hirochi, Tadashi Furuhara

    NANOMETALS - STATUS AND PERSPECTIVE 257-264 2012

    ISSN: 0907-0079

  73. 高強度・高機能化に向けた加工熱処理・解析技術

    古原 忠

    第209,210回西山記念技術講座「革新的な鉄鋼材料を生み出す組織制御技術とメタラジーの進歩」 45-62 2012

    Publisher: 日本鉄鋼協会

  74. Texture Control of Ti-Fe Alloys by Hot Deformation Processing

    Tadashi Furuhara

    Titanium Japan 59 (4) 308-312 2011/10

    Publisher: Japan Titanium Society

    ISSN: 1341-1713

  75. Nanoanalysis Methods of Metallic Materials

    古原 忠

    Insepection Engineering 16 (8) 1-5 2011/08

    Publisher: 日本工業出版

  76. Nano-sized Precipitate in Nitrided Ferrous Alloys

    MIYAMOTO Goro, TOMIO Yusaku, SUETSUGU Shotaro, FURUHARA Tadashi

    Journal of the Japan Society for Heat Treatment 51 (3) 128-133 2011/06/28

    Publisher: 日本熱処理技術協会

    ISSN: 0288-0490

  77. 金属材料組織学

    松原英一郎, 田中功, 大谷博司, 安田秀幸, 沼倉宏, 古原忠, 辻伸泰

    ,, p. pp 212 2011

  78. Current Opinion on Definition of Bainite Structure in Steels

    Tadashi Furuhara

    Journal of The Japan Society for Heat Treatment 50 (1) 22-27 2010/02

  79. 強磁場中示差熱分析によるFe-C二元合金の高温・強磁場中特性評価

    池原佑基, 高橋弘紀, 渡辺和雄, 小山佳一, 古原忠, 宮本吾郎, 及川勝成, 原川俊郎, 保科栄宏, 長岡隆弘

    日本磁気科学会年会プログラム・要旨集 5th 2010

  80. Effect of yttrium addition on grain growth of alpha, beta and alpha plus beta titanium alloys

    B. Poorganji, A. Kazahari, T. Narushima, C. Ouchi, T. Furuhara

    15TH INTERNATIONAL CONFERENCE ON THE STRENGTH OF MATERIALS (ICSMA-15) 240 2010

    DOI: 10.1088/1742-6596/240/1/012170  

    ISSN: 1742-6588

  81. MICROSTRUCTURE EVOLUTION THROUGH HEAVY COMPRESSION AIDED BY THERMODYNAMIC CALCULATION

    F. Haji-Akbari, M. Nili-Ahmadabadi, B. Poorganji, T. Furuhara

    TMS 2010 139TH ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS, VOL 2: MATERIALS CHARACTERIZATION, COMPUTATION AND MODELING AND ENERGY 2 739-+ 2010

  82. PREFACE

    NIINOMI Mitsuo, HANAWA Takao, IKEDA Masahiko, CHIBA Akihiko, FURUHARA Tadashi, NARUSHIMA Takayuki, TSUCHIYA Koichi, EMURA Satoshi, NAKANO Takayoshi, TAKENAKA Toshihide

    50 (12) 2703-2703 2009/12/01

    ISSN: 1345-9678

  83. Special Issue on Low-Cost Reduction Processes, Roles of Low-Cost Elements and Interstitial Elements, and Microstructural Control for Generalization of Titanium Alloys PREFACE

    Mitsuo Niinomi, Takao Hanawa, Masahiko Ikeda, Akihiko Chiba, Tadashi Furuhara, Takayuki Narushima, Koichi Tsuchiya, Satoshi Emura, Takayoshi Nakano, Toshihide Takenaka

    MATERIALS TRANSACTIONS 50 (12) 2703-2703 2009/12

    ISSN: 1345-9678

    eISSN: 1347-5320

  84. The crystallography of lath martensite formed at austenite grain boundaries in Fe-Ni-Mn alloy

    Shigekazu Morito, Jun Nishikawa, Takuya Ohba, Tadashi Furuhara, Tadashi Maki

    Proceedings of the International Conference on Martensitic Transformations, ICOMAT-08 649-653 2009/12/01

  85. Microstructure Control in Titanium Alloys Containing Ubiquitous Elements

    Tadashi Furuhara

    Titanium Japan 57 (4) 313-317 2009/10

    Publisher: Japan Titanium Society

    ISSN: 1341-1713

  86. Midrib in Lenticular Martensite

    Akinobu Shibata, Toshio Murakami, Shigekazu Morito, Tadashi Furuhara, Tadashi Maki

    NETSU SHORI (Journal of the Japan Society for Heat Treatment) 49 (4) 179-180 2009/08

  87. Special Issue on New Functions and Properties of Engineering Materials Created by Designing and Processing PREFACE

    Masahiko Morinaga, Mitsuo Niinomi, Tadashi Furuhara, Akihiko Chiba, Takayuki Narushima

    MATERIALS TRANSACTIONS 50 (7) 1612-1612 2009/07

    ISSN: 1345-9678

    eISSN: 1347-5320

  88. Current Understanding of Microstructure Formation of Martensite and Bainite in Steels

    Tadashi Furuhara

    Ferrum 14 (2) 97-102 2009/02

    Publisher: 日本鉄鋼協会

    ISSN: 1341-688X

  89. Matrix Structure of Martensite and Bainite in Steels

    Tadashi Furuhara

    Heat Treatment 24 (2) 16-21 2009

  90. Crystallography of heterogeneous nucleation on interphase boundaries

    Tadashi Furuhara, Goro Miyamoto

    Bulletin of the Iron and Steel Institute of Japan 14 (10) 650-655 2009

    Publisher: The Iron and Steel Institute of Japan

    ISSN: 1341-688X

  91. Precipitation behavior of alloy nitrides during plasma nitriding in Fe-0.6mass%C-1mass%M (M=Al, Cr) martensitic steels

    Yusaku Tomio, Shigeki Kistuya, Goro Miyamoto, Tadashi Furuhara

    Proceedings of the 17th IFHTSE Congress 1 161-164 2009/01/01

  92. Strategy for ubiquitous titanium alloys

    Mitsuo Niinomi, Takao Hanawa, Masahiko Ikeda, Akihiko Chiba, Tadashi Furuhara, Takayuki Narushima, Koichi Tsuchiya, Satoshi Emura, Takayoshi Nakano, Toshihide Takenaka

    Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals 72 (12) 915 2008/12

    DOI: 10.2320/jinstmet.72.915  

    ISSN: 0021-4876

  93. Fine Alloy Nitrides in Plasma-Nitrided Martensitic Steels

    TOMIO Yusaku, KITSUYA Shigeki, MIYAMOTO Goro, FURUHARA Tadashi

    NETSU SHORI (Journal of the Japan Society for Heat Treatment) 48 (3) 125-126 2008/06/28

    ISSN: 0288-0490

  94. Preface to the special issue on "Ultrafine Grained Steels"

    Tadashi Furuhara

    ISIJ INTERNATIONAL 48 (8) 1037-1037 2008

    DOI: 10.2355/isijinternational.48.1037  

    ISSN: 0915-1559

  95. Effects of Alloying Elements on Microstructures and Properties of Steels

    Tadashi Furuhara

    Trend and New Development of Resource Use Technologies in Iron and Steel Making 143-160 2008

    Publisher: The Iron and Steel Institute of Japan

  96. Alloying effect on reverse transformation from tempered martensite

    Goro Miyamoto, Hirokazu Usuki, Zhao Dong Li, Tadashi Furuhara

    Proceedings of the 17th IFHTSE Congress 2 482-485 2008/01/01

  97. Effect of pre-deformation heat treatment on deformation behavior of near-a Ti-Fe alloy in (α+β) two-phase region

    Behrang Poorganji, Makoto Yamaguchi, Yoshio Itsumi, Katsushi Matsumoto, Tomofumi Tanaka, Yusuke Asa, Goro Miyamoto, Tadashi Furuhara

    Proceedings of the 17th IFHTSE Congress 2 812-815 2008/01/01

  98. Refinement of cementite in tempered lath martensite

    T. Furuhara, G. Miyamoto, T. Maki

    Proceedings of the 17th IFHTSE Congress 2 423-429 2008/01/01

  99. Matrix Structure of Martensite and Bainite in Steels

    Tadashi Furuhara

    Ferrum 12 (12) 748-752 2007/12

    Publisher: Institute of Iron and Steel of Japan

    ISSN: 1341-688X

  100. 303 Microstructure and properties of friction stir welded 304 stainless steel using W alloy tool

    Sato Y.S., Yamanoi H., Masaki K., Kokawa H., Furuhara T.

    Pre-Prints of the National Meeting of JWS (81) 152-153 2007/09/01

    Publisher: Japan Welding Society

  101. Plasma nitriding behavior of Fe-18 mass%Cr alloy

    G. Miyamoto, Y. Tanaka, A. Yonemoto, T. Maki, T. Furuhara

    "Proceedings - 15th IFHTSE - International Federation for Heat Treatment and Surface Engineering Congress 2006" 582-587 2006/12/01

  102. Tempered microstructure and mechanical properties of ultra-high carbon steel

    Shu Qin Shi, Bao Qi Wang, T. Furuhara, T. Maki, Guang Chen

    Journal of Iron and Steel Research 18 38-41 2006/03/01

    ISSN: 1001-0963

  103. Microstructure of plasma-nitrided Fe-18Cr alloy

    G. Miyamoto, T. Furuhara, T. Maki

    Practical microscopy techniques for Materials Development 120-120 2006

    Publisher: 日本金属学会

  104. Mechanism of network carbide precipitation inhibited by aluminum in ultra-high carbon steel

    Shu Qin Shi, Nan Ju Gu, T. Furuhara, T. Maki, Guang Chen

    Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 26 79-82 2005/08/01

    ISSN: 1009-6264

  105. Variant Selection of Upper Bainite Formed at Austenite Grain Boundary

    KAWATA H., FURUHARA Tadashi, MORITO S., MAKI T.

    18 (3) 612-612 2005/03/01

    ISSN: 0914-6628

  106. Microstructure of plasma nitrided Fe-Cr alloys

    MIYAMOTO Goro, YONEMOTO A., TANAKA Y., FURUHARA T., MAKI T.

    18 (3) 619-619 2005/03/01

    ISSN: 0914-6628

  107. Microstructure Change during Warm Deformation in High Carbon Steels

    YAMAGUCHI T., FURIMOTO S., FURUHARA T., MAKI T.

    CAMP-ISIJ 18 (3) 702-702 2005/03/01

    ISSN: 0914-6628

  108. Thermally of stress induced martensite transformation in Ti-10V-2Fe-3Al with nitrogen addition

    FURUHARA T.

    18 (3) 696-696 2005/03/01

    ISSN: 0914-6628

  109. Microstructure Change of High Carbon Steels with Different Cementite Morphologies during Warm Deformation

    YAMAGUCHI Takuto

    18 (3) P26 2005/03/01

    ISSN: 0914-6628

  110. 鉄鋼材料の学術基礎研究の進歩と展望 -組織形成・制御

    T. Furuhara

    Bulletin of The Iron and Steel Institute of Japan (Ferrum) 10 (4) 289-291 2005

  111. Effect of Si addition on the precipitation of iron carbide in tempered high carbon martensite

    G. Miyamoto, T. Furuhara, T. Maki, J. C. Oh, K. Hono

    SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS 2005, VOL 1 1 363-369 2005

  112. Nucleation on irrational interphase boundaries in diffusional phase transformations of steels

    T. Furuhara, G. Miyamoto, H. Saito, T. Maki

    Solid-Solid Phase Transformations in Inorganic Materials 2005, Vol 1 1 5-16 2005

  113. Effect of carbon content on ausformed bainite structure in Fe-Ni-C alloys

    KAWATA H., FURUHARA T., MAKI T.

    17 (6) 1375-1375 2004/09/01

    ISSN: 0914-6628

  114. Microstructure of plasma nitrided ferritic stainless steel

    YONEMOTO A., MIYAMOTO G., FURUHARA T., MAKI T.

    CAMP-ISIJ 17 (6) 1374-1374 2004/09/01

    ISSN: 0914-6628

  115. The thermodynamical effect of third alloying elements on cementite precipitation in tempered martensite

    MIYAMOTO G., FURUHARA T., MAKI T., OH J., HONO K.

    17 (6) 1372-1372 2004/09/01

    ISSN: 0914-6628

  116. Structure and Mechanical Property of Ultra-fine Grained High-carbon Steels

    FURUHARA Tadashi

    17 (3) 356-358 2004/03/01

    ISSN: 0914-6628

  117. Effect of third alloying element on precipitation of iron carbide in tempering of high carbon martensite

    MIYAMOTO G., Kanti, FURUHARA T., MAKI T.

    17 (3) 495-495 2004/03/01

    ISSN: 0914-6628

  118. Effect of Carbon Addition on Phase Equilibrium of Titanium-Vanadium Alloys

    ANNAKA Satoshi

    17 (3) 31-31 2004/03/01

    ISSN: 0914-6628

  119. Strength-Ductility Balance of (α+θ)Microduplex High Carbon Steel

    YONEMOTO Atsushi

    17 (3) 29-29 2004/03/01

    ISSN: 0914-6628

  120. Effect of Carbide Precipitation at Austenite Grain Boundary on Crystallography of Grain Boundary Ferrite

    SAITO H., MIYAMOTO G., FURUHARA T., MAKI T.

    17 (3) 447-447 2004/03/01

    ISSN: 0914-6628

  121. Effect of transformation temperature and C content on the crystallographic feature of upper bainite

    KAWATA H., FURUHARA T., MAKI T.

    17 (3) 444-444 2004/03/01

    ISSN: 0914-6628

  122. Effect of precipitates on crystallography of intergranular ferrite

    SAITO Hayato

    17 (3) 32-32 2004/03/01

    ISSN: 0914-6628

  123. Phenomena Related to Interphase Boundaries in Phase Transformations

    T. Furuhara

    Materia Japan 43 (2) 103-107 2004

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.43.103  

    ISSN: 1340-2625

  124. THERMEC'2003国際会議報告

    乾 晴行, 古原 忠

    まてりあ : 日本金属学会会報 42 (10) 745-745 2003/10/20

    ISSN: 1340-2625

  125. Precipitation in a plasma nitrided Fe-Ti alloy

    MIYAMOTO Goro, YAGI H., FURUHARA T., MAKI T.

    16 (6) 1522-1522 2003/09/01

    ISSN: 0914-6628

  126. Dynamic Recrystallization of Ti-6Al-4V Alloy

    ABE Hiroshi, FURUHARA Tadashi, MAKI Tadashi

    16 (6) 1479-1479 2003/09/01

    ISSN: 0914-6628

  127. Effect of ausforming on bainite structure in an Fe-Ni-C alloy

    SAKAMOTO Kentaro

    16 (3) P27 2003/03/01

    ISSN: 0914-6628

  128. Control of Cementite Precipitation in Lath Martensite by Rapid-heating Tempering

    FURUHARA Tadashi, MAKI Tadashi

    16 (3) 502-505 2003/03/01

    ISSN: 0914-6628

  129. Orientation Relationships of Transition Carbides in an Fe-16Cr-0.06C Ferritic Stainless Steel

    Y. Yazawa, T. Furuhara, T. Maki

    Materia Japan 42 (12) 883-883 2003

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.42.883  

    ISSN: 1340-2625

  130. Interphase Boundary Structure of Upper Bainite in Ferrous Alloy

    T. Moritani, T. Furuhara, T. Maki

    Materia Japan 42 (12) 879-879 2003

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.42.879  

    ISSN: 1340-2625

  131. Structure and energy of interphase boundaries in steel

    Tadashi Furuhara

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan 89 (5) 497-509 2003

    Publisher: Iron and Steel Institute of Japan

    DOI: 10.2355/tetsutohagane1955.89.5_497  

    ISSN: 0021-1575

  132. Microstructure of Proeutectoid Ferrite Transformed from Ultra-fine Grained Austenite

    SAITO Hayato

    15 (6) P37 2002/09/01

    ISSN: 0914-6628

  133. Crystallography of packet structure in upper bainite of Fe-Si-Mn-C Alloy

    MORITANI Tomokazu

    CAMP-ISIJ 15 (3) 597-597 2002/03/01

    ISSN: 0914-6628

  134. Refinement of Cementite by Rapid-heating Tempering of Lath Martensite

    FURUHARA Tadashi

    CAMP-ISIJ 15 (3) 482-482 2002/03/01

    ISSN: 0914-6628

  135. Effect of silicon on microstructure of rapidly heated tempered martensite in a high-carbon steel

    KOBAYASHI Katsuya

    15 (3) P21 2002/03/01

    ISSN: 0914-6628

  136. Eutectoid transformation of ultra-fine grained austenite

    MIZOGUCHI Taichiro

    15 (3) P23 2002/03/01

    ISSN: 0914-6628

  137. Microstructure of degenerate pearlite in a hypoeutectoid Fe-C alloy

    SAKAMOTO Kentaro

    14 (6) 1175-1175 2001/09/01

    ISSN: 0914-6628

  138. Crystallography and Interphase boundary structure of upper bainite

    MORITANI Tomokazu

    14 (6) 1171-1171 2001/09/01

    ISSN: 0914-6628

  139. Microstructural evolution during high temperature deformation in a near- β titanium alloy

    TOUJI Yuuki

    14 (6) P15 2001/09/01

    ISSN: 0914-6628

  140. Refinement of Cementite Dispersion and Change in Mechanical Property of High-carbon Steels by Alloying Element Addition

    FURUHARA Tadashi

    14 (6) 1114-1117 2001/09/01

    ISSN: 0914-6628

  141. Microstructure Change of Pearlite by Heavy Cold Rolling

    Taichiro Mizoguchi, Tadashi Furuhara, Tadashi Maki

    NETSU SHORI (Journal of the Japan Society for Heat Treatment) 41 (3) 103-104 2001/06

    ISSN: 0288-0490

  142. Effect of alloying elements on cementite precipitation in tempered martensite

    GAO Enjiu

    14 (3) P24 2001/03/01

    ISSN: 0914-6628

  143. Crystallography of VC nucleated on coherent MnS in austenite

    KIMORI Tatsuro

    14 (3) P31 2001/03/01

    ISSN: 0914-6628

  144. Microstructure and Mechanical Property of Heavily Cold Rolled Pearlite

    FURUHARA Tadashi

    CAMP-ISIJ 14 (3) 551-551 2001/03/01

    ISSN: 0914-6628

  145. Control of Cementite Morphology in Tempered Lath Martensite

    FURUHARA Tadashi

    14 (3) 552-552 2001/03/01

    ISSN: 0914-6628

  146. Microstructure and Tensile Property of Ultra - fine Ferrite+Cementite Structure in High Carbon Steels

    MAKI Tadashi

    14 (3) 550-550 2001/03/01

    ISSN: 0914-6628

  147. Effect of Mn and Si on tensile properties of cold - rolled and annealed pearlite in eutectoid steels

    FU W. T., FURUHARA T., MAKI T.

    14 (3) 602-602 2001/03/01

    ISSN: 0914-6628

  148. Microstructure change of pearlite by heavy cold rolling and annealing

    MIZOGUCHI Taichiro

    14 (3) 605-605 2001/03/01

    ISSN: 0914-6628

  149. Crystallography of (MnS+VC) complex precipitate in austenite

    KIMORI Tatsuro

    14 (3) 618-618 2001/03/01

    ISSN: 0914-6628

  150. Effect of alloying element addition on directional pearlite structure in eutectoid steels

    FUJISAWA Kotaro

    14 (3) 601-601 2001/03/01

    ISSN: 0914-6628

  151. Microstructure change by rapid heating and tempering of lath martensite in a structural steel

    KOBAYASHI Katsuya

    14 (3) 604-604 2001/03/01

    ISSN: 0914-6628

  152. Unidirectional pearlite transformation in eutectoid carbon steel

    FUJISAWA Kotaro

    13 (6) 1291-1291 2000/09/01

    ISSN: 0914-6628

  153. Variation of precipitate morphology by cold rolling and annealing after precipitation from ferrite of Fe-17Cr-2Cu

    SHIGETOMI Tomoharu

    13 (3) 599-599 2000/03/01

    ISSN: 0914-6628

  154. Crystallography and Interphase Boundary Structure of Grain Boundary Precipitate

    FURUHARA Tadashi

    13 (3) 576-576 2000/03/01

    ISSN: 0914-6628

  155. Austenite/Ferrite Orientation Relationship in Ferrite Nucleation on (MnS+V(C,N)) Complex Precipitate

    FURUHARA Tadashi

    CAMP-ISIJ 13 (3) 577-577 2000/03/01

    ISSN: 0914-6628

  156. Transition of Interfacial Structure in (α+γ) Duplex Stainless Steel during Superplastic Deformation

    T. Furuhara, T. Maki

    Materia Japan 39 (12) 974-974 2000

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.39.974  

    ISSN: 1340-2625

  157. Microstructure and Mechanical Property of Ultra-fine (α+θ) Structure in High Carbon Steels

    T. Furuhara, T. Maki

    Materia Japan 39 (3) 220-224 2000

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.39.220  

    ISSN: 1340-2625

  158. Microstructure Control with Heterogeneous Nucleation on Defects

    T. Furuhara, T. Maki

    Materia Japan 39 (5) 417-422 2000

    DOI: 10.2320/materia.39.417  

  159. Martensitic transformation in thin foils of an Fe-Ni-Co-Ti shape memory alloy

    S Morito, T Moritani, T Furuhara, T Maki

    SHAPE MEMORY MATERIALS 327-3 207-210 2000

    ISSN: 0255-5476

  160. The Change in Matrix Structure During Tempering of Lath Martensite in Fe-C Alloys

    T. Maki, S. Morito, T. Furuhara

    ASM Proceedings: Heat Treating 631-637 1999/12/01

  161. Formation of Ultra-fine Grain Structure by Heavy Cold Rolling and Annealing

    KIMORI Tatsuro

    12 (6) 1146-1149 1999/09/01

    ISSN: 0914-6628

  162. Formation of Ultrafine Ferrite Grains by Tempering of Martensite in High Carbon Steel

    MAKI Tadashi

    12 (3) 340-342 1999/03/01

    ISSN: 0914-6628

  163. Effects of Cold-Rolling and Recrystallization on Morphology and Crystallography of VC in Austenite

    YAZAWA Yoshihiro

    CAMP-ISIJ 12 (3) 443-443 1999/03/01

    ISSN: 0914-6628

  164. Cold Rolled and Annealed Microstructure and Mechanical Property of Pearlite Steels

    FURUHARA Tadashi

    12 (3) 413-416 1999/03/01

    ISSN: 0914-6628

  165. Effect of Specimen Thickness on Martensitic Transformation in a Fe-Ni-Co-Ti Shape Memory Alloy

    MORITANI Tomokazu

    12 (3) 38-38 1999/03/01

    ISSN: 0914-6628

  166. Microstructure control for superplasticity of an ultra-high carbon steel

    E Sato, S Furimoto, T Furuhara, K Tsuzaki, T Maki

    TOWARDS INNOVATION IN SUPERPLASTICITY II 304-3 133-138 1999

    ISSN: 0255-5476

  167. Morphology and Crystallography of Carbides in an 16%Cr Ferritic Stainless Steel

    YAZAWA Yoshihiro

    11 (6) 1127-1127 1998/09/01

    ISSN: 0914-6628

  168. Crystallography of Ferrite Nucleated at(MnS+V(C, N))Complex Precipitate in Austenite

    FURUHARA Tadashi

    11 (6) 1128-1128 1998/09/01

    ISSN: 0914-6628

  169. Acceleration of Ferrite Nucleation at Inclusions by Prior Hot Deformation of Austenite

    FURUHARA Tadashi

    CAMP-ISIJ 11 (6) 1129-1129 1998/09/01

    ISSN: 0914-6628

  170. Effect of Amount of Retained Austenite on Strength and Toughness of Cobalt Containing Martensitic Stainless Steel

    UEHARA Toshihiro

    11 (3) 589-589 1998/03/05

    ISSN: 0914-6628

  171. Production of (α+θ) Microduplex Structure in Ultra High Carbon Steel

    FURUHARA Tadashi

    CAMP-ISIJ 11 (3) 571-571 1998/03/05

    ISSN: 0914-6628

  172. オーステナイトより析出したB1型炭化物の結晶学および異相界面構造

    T. Furuhara, T. Maki

    Materia Japan 37 (5) 366-366 1998

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.37.366  

    ISSN: 1340-2625

  173. Effect of Inclusions on the Intragranular Nucleation of Ferrite in Hypoeutoctoid Steels

    YAMAGUCHI Jun

    10 (6) 1312-1312 1997/09/01

    ISSN: 0914-6628

  174. Crystallography and Interphase Boundary Structure of B1-type Inclusions in Steel

    FURUHARA Tadashi

    CAMP-ISIJ 10 (6) 1311-1311 1997/09/01

    ISSN: 0914-6628

  175. Variant selection of grain boundary bcc precipitates in the Ni-43%Cr fcc matrix.

    TSUZAKI Kaneaki

    10 (6) 1304-1304 1997/09/01

    ISSN: 0914-6628

  176. Effect of β Recovery Treatment Prior to Aging on the Strength-Ductility Balance of β Titanuim Alloy

    FURUHARA Tadashi

    10 (3) 643-643 1997/03/27

    ISSN: 0914-6628

  177. Effect of Molybdenum Content on Strength and Toughness of Cobalt Containing Martensitic Stainless Steel

    UEHARA Toshihiro

    CAMP-ISIJ 10 (3) 573-573 1997/03/27

    ISSN: 0914-6628

  178. Effect of MnS on the Intragranular Nucleation of Ferrite in Hypoeutectoid Steels

    YAMAGUCHI Jun

    10 (3) 575-575 1997/03/27

    ISSN: 0914-6628

  179. Effect of θ particle size on tensile properties of(α+θ)microduplex high-carbon steel)

    TAGASHIRA Satoshi

    CAMP-ISIJ 10 (3) 553-553 1997/03/27

    ISSN: 0914-6628

  180. Interphase Boundary Structure and Transformation Mechanism in Diffusional Phase Transformations

    T. Furuhara, T. Maki

    Materia Japan 36 (5) 483-490 1997

    Publisher: The Japan Institute of Metals and Materials

    DOI: 10.2320/materia.36.483  

    ISSN: 1340-2625

  181. Effect of Warm Working of Austenite on The Pearlite Nucleation at MnS

    KIMURA Naritoshi

    CAMP-ISIJ 9 (6) 1355-1355 1996/09/28

    ISSN: 0914-6628

  182. Effect of Thermo-mechanical processing on the (α+β)Microstructure and Mechanical Properties of Ti-15V-3Cr-3Sn-3Al Alloy

    NAGAOKA Toru

    CAMP-ISIJ 9 (6) 1496-1496 1996/09/28

    ISSN: 0914-6628

  183. Deformation structure and mechanical properties of cold-rolled pearlitic steel sheets

    TAGASHIRA Satoshi

    CAMP-ISIJ 9 (6) 1485-1485 1996/09/28

    ISSN: 0914-6628

  184. Effect of Cobalt Content on Strength and Toughness of Cobalt Containing Martensitic Stainless Steel

    UEHARA Toshihiro

    9 (6) 1235-1235 1996/09/28

    ISSN: 0914-6628

  185. TiおよびTi合金の相変態

    古原忠

    金属 66 (4) 11-20 1996

  186. Phase Transformation in Titanium and its Alloys

    T. Furuhara, T. Maki

    Kinzoku 66 (4) 287-296 1996

    Publisher: アグネ技術センター

    ISSN: 0368-6337

  187. 無機材料の固相→固相変態に関する国際会議に出席して

    古原 忠

    鐵と鋼 : 日本鐡鋼協會々誌 81 (2) N63 1995/02/01

    Publisher: 社団法人日本鉄鋼協会

    ISSN: 0021-1575

  188. INTERPHASE BOUNDARY STRUCTURES IN PHASE-TRANSFORMATION AND PRECIPITATION PROCESSES

    T FURUHARA

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN 81 (2) 98-104 1995/02

    DOI: 10.2355/tetsutohagane1955.81.2_98  

    ISSN: 0021-1575

  189. β型チタン合金の転位および変形双晶境界に析出したα相の結晶学的特徴

    古原 忠, 中森 英行, 牧 正志

    日本金属学会誌 56 (9) p1020-1029 1992/09

    Publisher: 日本金属学会

    ISSN: 0021-4876

  190. THE STRUCTURE OF INTERPHASE BOUNDARIES AND THE LEDGEWISE GROWTH OF PRECIPITATES IN METALS AND ALLOYS

    M ENOMOTO, T FURUHARA

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN 77 (6) 735-745 1991/06

    DOI: 10.2355/tetsutohagane1955.77.6_735  

    ISSN: 0021-1575

  191. THE MATS HILLERT APPROACH TO GROWTH-KINETICS OF DIFFUSIONAL PHASE-TRANSFORMATIONS IN CRYSTALLINE SOLIDS

    HI AARONSON, T FURUHARA, M ENOMOTO

    SCANDINAVIAN JOURNAL OF METALLURGY 20 (1) 18-31 1991

    ISSN: 0371-0459

  192. Fundamentals of First Order Diffusional Phase Transformations: A Physical Metallurgical Viewpoint

    H. I. Aaronson, T. Furuhara

    "Analytical Electron Microscopy - 1987", ed. by D. C. Joy 3-14 1987

    Publisher: San Fransisco Press

  193. 633 Computer simulation of isothermal transformation diagram of steels(PROPERTIES OF IRON AND STEEL, PAPER PRESENTATIONS, The 105th ISIJ Meeting)

    Furuhara Tadashi

    Tetsu- to- Hagane 69 (5) S634 1983/03/01

    Publisher: The Iron and Steel Institute of Japan (ISIJ)

    ISSN: 0021-1575

Show all ︎Show first 5

Books and Other Publications 16

  1. チタンの基礎と応用

    古原 忠 他

    内田老鶴圃 2023/03

    ISBN: 9784753651122

  2. しなやかで強い鉄鋼材料 ー 革新的構造用金属材料の開発最前線

    古原 忠

    (株)エヌ・ティー・エス 2016

  3. 鉄鋼材料と合金元素

    古原 忠, 宮本吾郎

    日本鉄鋼協会 2015

  4. 鉄鋼便覧第5版

    古原 忠

    日本鉄鋼協会 2014

  5. 自動車の軽量化テクノロジー

    古原 忠

    (株)エヌ・ティー・エヌ 2014

  6. 鉄の事典

    古原 忠

    朝倉書店 2014

  7. Phase transformations in steels

    Tadashi Furuhara

    Woodhead Publishing Limited 2012

    ISBN: 9781845699703

  8. 金属材料組織学

    古原 忠 他

    朝倉書店 2011/12

  9. 金属材料の加工と組織

    森永正彦, 古原 忠, 戸田裕之

    共立出版 2010/03/25

  10. Basic Materials Science, Manufacturing and Newly Advanced Technologies of Titanium and Its Alloys

    Tadashi Furuhara

    CMC Publishing 2009/08

  11. 金属材料の最前線

    東北大学金属材料研究所

    (株)講談社 2009/07/20

  12. Prospect of Surface Treatment and Modification Technology in Inorganic Materials - Metal, Ceramics, and Glass -

    Tadashi Furuhara

    CMC Publishing 2007/09/28

  13. 材料開発のための顕微鏡法と応用写真集

    越後谷淳一, 弘津禎彦

    (社)日本金属学会 2006/03/20

  14. ナノマテリアル技術体系 第2巻 ナノ金属編

    井上明久

    (株)フジ・テクノシステム 2006/01/11

  15. 熱処理用語辞典

    日本熱処理技術協会

    日刊工業新聞社 2002/07

  16. 電子顕微鏡法の実践と応用写真集

    丸山公一, 仲井清眞他

    (社)日本鉄鋼協会,(社)日本金属学会 2002/03

Show all Show first 5

Presentations 206

  1. Interface-related Phenomena in Displacive Transformations of Steel Invited

    Tadashi Furuhara, Goro Miyamoto

    2024/10/16

  2. Ferrite and Austenite Transformations in Fe-N Based Alloys Invited

    Tadashi Furuhara, Mitsutaka Sato, Goro Miyamoto

    MS&T2024 symposium on Austenite Formation and Decomposition V 2024/10/08

  3. Alloying effects on microstructure development in high strength steels – from bulk to surface Invited

    Tadashi Furuhara, Yongje Zhang, Mitsutaka Sato, Goro Miyamoto

    IFHTSE World Congress 2024 2024/09/30

  4. Fundamental principles for alloy design of surface hardened steels by nitriding Invited

    Tadashi Furuhara, Goro Miyamoto

    The 9th Asia Steel International Conference (Asia Steel 2024) 2024/09/05

  5. High Throughput Approaches for Sublattice Alloy Design of High Performance Nitriding Steels Invited

    Tadashi Furuhara, Yulin Xie, Goro Miyamoto

    TMS2024 High Performance Steels Symposium 2024/03/05

  6. Exploring for the Future of Steel Science Invited

    Tadashi Furuhara

    The 11th Pacific Rim International Conference on Advanced Materials and Processing (PRICM11) 2023/11/22

  7. Sublattice alloy design for application of solute clustering in high-strength steels Invited

    Tadashi Furuhara

    The 55th Metallurgical Lecture, University of Science and Technology Beijing 2023/11/01

  8. Sublattice alloy design for application of solute clustering in high-strength steels Invited

    Tadashi Furuhara

    Distinguished Seminar on Recent Breakthrough in Engineering Fields, Chongqing University 2023/10/30

  9. History of Steel Research in Institute for Materials Research ("KINKEN") of Tohoku University Invited

    Tadashi Furuhara

    TMS2023 Symposium on History of Materials Science and Engineering 2023/10/02

  10. Sublattice alloy design for application of solute clustering in high-strength steels Invited

    Tadashi Furuhara

    International Conference on Processing & Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications (Thermec2023) 2023/07/04

  11. Roles of recrystallization on surface microstructure formation in nitrided steels Invited

    Tadashi Furuhara, Goro Miyamoto

    The 8th Conference on Recrystallization and Grain Growth (Rex&GG) 2023/05/15

  12. Interface in Solid-Solid Phase Transformation - Interplay of Kinetics and Crystallography - Invited

    Tadashi Furuhara

    The 8th International Conference on Solid→Solid Phase Transformations in Inorganic Materials (PTM2022) 2022/06/27

  13. Interface Engineering in Controlling Microstructure and Property of Steels Invited

    Tadashi Furuhara

    The 2021 International Symposium on Metal Processing (ISMP2021) 2021/08/24

  14. Variant Selection of Phase Transformations in Steels Invited

    Tadashi Furuhara

    The 19th International Conference on Textures of Materials (ICOTOM 19) 2021/03/04

  15. Roles of thermal cycles in the microstructure and property controls in low-alloy high strength steels Invited

    Tadashi Furuhara

    TMS 2020 Annual Meeting & Exhibition 2020/02/24

  16. Roles of Heady Deformation on Microstructure and Properties on Nitrided Ferritic Steels Invited

    Tadashi Furuhara

    Materials Science & Technology 2019 2019/09/30

  17. Light Element Strategy in Advanced High Strength Steels Invited

    Tadashi Furuhara

    The 2019 Wuhan Forum on Materials Frontier 2019/09/13

  18. Roles of transformation interface in the design of advanced high strength steel Invited

    Tadashi Furuhara

    The 40th Risø International Symposium on Materials Science: Metal Microstructures in 2D, 3D and 4D 2019/09/02

  19. Carbon Partitioning during Ferrite and Bainite Transformations in Low-Alloy Steels Invited

    Tadashi Furuhara

    The 10th Pacific Rim International Conference on Advanced Materials and Processing (PRICM-10) 2019/08/21

  20. Roles of transformation interface in the design of advanced high strength steel Invited

    Tadashi Furuhara

    Gordon Research Conference on Physical Metallurgy - Coupling Computation, Data Science and Experiments in Physical Metallurgy 2019/07/10

  21. Physical Metallurgy Research in Structural Materials in Japan Invited

    Tadashi Furuhara

    The 2019 International Conference on Future Vision of Metallurgy 2019/05/25

  22. Light Element Strategy in Advanced High Strength Steels Invited

    Tadashi Furuhara

    The 3rd International Symposium on Hetero Structure and Advanced Materials 2019/03/02

  23. Light Element Strategy in Advanced High Strength Steels Invited

    Tadashi Furuhara

    The 2nd Symposium for World Leading Research Centers - Materials Science and Spintronics - 2019/02/15

  24. Light Element Strategy in Advanced High Strength Low-Alloy Steels Invited

    Tadashi Furuhara

    Nature Research Round Table - Advanced Manufacturing of Structural Materials 2018/11/21

  25. Carbon Partitioning during Ferrite and Bainite Transformations in Low-alloy Steels Invited

    Tadashi Furuhara

    The 6th International Conference on Advanced Steels (ICAS 2018) 2018/11/20

  26. Light element strategy in advanced high strength steels Invited

    Tadashi Furuhara

    The 9th International Conference on Advanced Mateials Processing (ICAMP-9) 2018/09/26

  27. Roles of transformation interface in controlling microstructure and properties of high strength steels Invited

    Tadashi Furuhara

    The International Conference on Processing and Manufacturing of Advanced Materials (Thermec' 2018) 2018/07/08

  28. Important Factors to Design High-strength Ferritic Steel with Nano-sized Interphase Precipitation of Alloy Carbide Invited

    Tadashi Furuhara

    TMS 2018 Annual Meeting & Exhibition 2018/03/13

  29. Roles of Transformation Interface for Controlling Microstructure and Properties of High Strength Steels Invited

    Tadashi Furuhara

    TMS 2018 Annual Meeting & Exhibition 2018/03/12

  30. Light Element Strategy in Advanced High Strength Steels Invited

    Tadashi Furuhara

    NIMS Week 2017 2017/10/04

  31. Self-organization by Strain Accommodation in the Formation of Long-range Stacking Order Structure in Mg-RE-TM Alloys International-presentation Invited

    TMS Annual Meeting & Exhibition 2017 2017/02/26

  32. Important Roles of Phase Transformations on Advanced Design of Modern High Strength Steels Invited

    The 5th Conference of the Combined Australian Materials Societies (CAM2016) 2016/12/06

  33. Strengthening of low alloy steel by nano-scale precipitation of alloy carbide/nitride International-presentation

    The 9th International Conference on Processing and Manufacturing of Advanced Materials (Thermec'2016) 2016/05/29

  34. Strengthening of low alloy steel by nanoscale precipitation of alloy carbide/nitride International-presentation

    Tadashi Furuhara, Goro Miyamoto, Naoya Kamikawa

    IUMRS-ICAM2015 2015/10/25

  35. Strengthening of Medium-Carbon Forging Steels by Interphase Precipitation International-presentation

    Tadashi Furuhara, Goro Miyamoto, Naoya Kamikawa

    Int. Conf. Advances in Product Metallurgy of Long and Forged Products 2015/07/12

  36. Importance of Phase Transformations in Development of Modern High Strength Steels International-presentation

    Tadashi Furuhara, Naoya Kamikawa, Goro Miyamoto

    International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM2015) 2015/06/28

  37. 界面現象を利用した相変態組織の制御

    古原 忠

    日本金属学会 第156回春期講演大会 2015/03/18

  38. A 3DAP study of the LPSO structure in Mg-Zn-Y alloy

    Xinfu Gu, Tadashi Furuhara

    日本金属学会 第156回春期講演大会 2015/03/18

  39. B添加Al-Si耐候性鋼ボンドHAZ部のミクロ組織形成に及ぼすBの効果

    小林覚, 津﨑兼彰, 宮本吾郎, 古原忠, 大谷博司

    第169回春季講演大会 鉄鋼協会(東大) 2015/03/17

  40. 鉄合金のマルテンサイト/ベイナイト組織のバリアント隣接傾向

    宮本吾郎, 古原忠

    第169回春季講演大会 鉄鋼協会(東大) 2015/03/17

  41. Fe-高Ni-C合金における繰り返しせん断型変態による組織微細化

    知場 三周, 宮本 吾郎, 古原 忠

    第169回春季講演大会 鉄鋼協会(東大) 2015/03/17

  42. Dominating factors on the dispersion of VC interphase precipitation in v-added steels

    Zhang Yongjie, 宮本吾郎, 新房邦夫, 古原忠

    第169回春季講演大会 鉄鋼協会(東大) 2015/03/17

  43. 低炭素鋼のベイナイト変態組織に及ぼすMnSおよびVCの影響

    長見祐弥, 宮本吾郎, 古原 忠

    第169回春季講演大会 鉄鋼協会(東大) 2015/03/17

  44. 浸窒焼入れ組織におよぼす合金元素の影響

    久保寛典, 宮本吾郎, 古原忠

    第169回春季講演大会 鉄鋼協会(東大) 2015/03/17

  45. Fe-2Mn-1.5Si-0.3Cにおける二相域焼鈍に伴う組織変化

    吉田康紀, 金下武士, 宮本吾郎, 古原忠

    第169回春季講演大会 鉄鋼協会(東大) 2015/03/17

  46. Fe-2Mn-C合金のオーステナイト粒界から生成したベイナイトのバリアント選択

    金下武士, 宮本吾郎, 古原忠

    第13回東北支部研究発表大会 2014/12/10

  47. Fe-1mass%M2元合金の浸窒焼入れ組織と硬さ

    久保寛典, 田頭聡, 宮本吾郎, 古原忠

    第13回東北支部研究発表大会 2014/12/10

  48. 急速短時間加熱高周波焼入れでの焼入性に及ぼすB添加の影響

    井戸原 修, 三阪 佳孝, 川嵜 一博, 宮本 吾郎, 古原 忠

    熱処理 第78回秋季講演大会 2014/11/27

  49. せん断型繰り返し変態によるFe-18Ni 合金の組織微細化

    知場 三周, 宮本 吾郎, 古原 忠

    熱処理 第78回秋季講演大会 2014/11/27

  50. 相変態・熱処理に関する最近の話題

    古原 忠

    熱処理 第78回秋季講演大会 2014/11/27

  51. オーステナイト逆変態に及ぼす合金元素の影響

    吉田康紀, 宮本吾郎, 古原忠

    学生鉄鋼セミナー 2014/11/19

  52. 剪断型格子変形を伴う析出としてのLPSO 構造形成(

    古原 忠, Gu Xinfu

    第58回日本学術会議材料工学連合講演会 2014/10/26

  53. Strengthening of low alloy steel by nanoscale precipitation of alloy carbide/nitride International-presentation

    T. Furuhara, G. Miyamoto, N. Kamikawa

    IUMRS-ICYRAM2014 2014/10/24

  54. Effects of Pre-strain and Ageing on the LPSO Structure in Mg97Zn1Y2 Alloy International-presentation

    Xinfu Gu, Tadashi Furuhara

    International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials 2014 (LPSO2014) 2014/10/05

  55. Comparison between the microstructures with different heat treatment in Mg97Zn1Y2 alloy International-presentation

    Xinfu Gu, Tadashi Furuhara

    International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials 2014 (LPSO2014) 2014/10/05

  56. ナノ析出鋼における変形応力の温度・ひずみ速度依存性

    紙川尚也, 近 英佑, 古原 忠

    第168回秋季講演大会 鉄鋼協会 2014/09/24

  57. Fe-2Mn-C合金のオーステナイト粒界から生成したベイナイトのバリアント選択

    金下武士, 宮本吾郎, 古原忠

    第168回秋季講演大会 鉄鋼協会 2014/09/24

  58. Fe-M2元合金の窒化挙動に及ぼす強加工の影響

    孟凡輝, 宮本吾郎, 古原忠

    第168回秋季講演大会 鉄鋼協会 2014/09/24

  59. 低炭素鋼のベイナイト組織に及ぼすMnSおよびVCの影響

    長見祐弥, 宮本吾郎, 古原 忠

    第168回秋季講演大会 鉄鋼協会 2014/09/24

  60. On the effect of Pre-strain and ageing on LPSO structure in Mg97Zn1Y2 alloy

    Xinfu Gu, Tadashi Furuhara

    2014年秋季講演大会(第155回)大会 2014/09/24

  61. 単結晶Fe-Ni合金のレンズマルテンサイト生成に及ぼす応力の影響

    知場 三周, 宮本 吾郎, 古原 忠

    2014年秋季講演大会(第155回)大会 2014/09/24

  62. Incomplete bainite transformation in microalloyed low carbon steels International-presentation

    Y. Xia, G. Miyamoto, T. Furuhara

    International Conference on Martensitic Transformations 2014 2014/07/06

  63. The crystallography of martensite and displace-diffusional transformations in a Ti-5.26wt.%Cr alloy International-presentation

    D. Qiu, M. X. Zhang, P. M. Kelly, T. Furuhara

    International Conference on Martensitic Transformations 2014 2014/07/06

  64. Effects of carbon content on orientation relationship and variant pairing in Fe-C martensite International-presentation

    G. Miyamoto, A. Stormvinter, T. Furuhara, A. Borgenstam

    International Conference on Martensitic Transformations 2014 2014/07/06

  65. Characteristic of martensite reversion in Fe-high Ni alloys International-presentation

    H. Shirazi, G. Miyamoto, S. Hossein-Nedjad, M. Nili-Ahmadadani, T. Furuhara

    International Conference on Martensitic Transformations 2014 2014/07/06

  66. Difference pf variant selection of ausfirmed lenticular ,martensite between single and polycrystalline specimens International-presentation

    T. Chiba, G. Miyamoto, T. Furuhara

    International Conference on Martensitic Transformations 2014 2014/07/06

  67. 鉄鋼の浸窒・窒化組織と特性

    古原 忠, 宮本吾郎

    熱処理技術協会 第77 回 春季講演大会 2014/06/02

  68. Pd40Cu20Ge40金属ガラス液体急冷薄帯の3DAP による微細構造評価

    山本篤史郎, 細川伸也, 林好一, 加藤秀実, 宮本吾郎, 古原忠

    2014年春期(第154回)講演大会 2014/03/21

  69. オースフォームドレンズマルテンサイトのバリアント選択に及ぼす母相粒界の影響

    知場三周, 宮本吾郎, 古原 忠

    2014年春期(第154回)講演大会 2014/03/21

  70. EBSD 法を用いた鉄系マルテンサイトの結晶学解析

    宮本吾郎, 古原忠

    2014年春期(第154回)講演大会 2014/03/21

  71. Effects of Mn, Si and N contents on VC Interphase Precipitation in Low Carbon Steels

    Y.-J. Zhang, G. Miyamoto, K. Shinbo, T. Furuhara, T. Ohmura, T. Suzuki, K. Tsuzaki

    2014年春期(第154回)講演大会 2014/03/21

  72. 二相域焼鈍におけるγ逆変態に伴う炭素濃化

    宮本吾郎, 劉振清, 古原忠

    第167回春季講演大会 鉄鋼協会 2014/03/21

  73. Mo添加低炭素鋼におけるベイナイトの不完全変態

    夏 苑, 宮本吾郎, 古原忠, 発表

    第167回春季講演大会 鉄鋼協会 2014/03/21

  74. Microstructure of Fe-1mass%M binary alloys treated by nitriding and quenching process

    H. Kubo, G. Miyamoto, T. Furuhara

    第167回春季講演大会 鉄鋼協会 2014/03/21

  75. Fe-2Mn-C 合金のオーステナイト粒界から生成したベイナイトのバリアント選択]

    金下武士, 宮本吾郎, 古原忠

    第167回春季講演大会 鉄鋼協会 2014/03/21

  76. Effects of Ferrite Growth Rate on Interphase Boundary Precipitation in V Microalloyed Steels

    村上俊夫, 畑野等, 宮本吾郎, 古原忠

    第167回春季講演大会 鉄鋼協会 2014/03/21

  77. 低炭素鋼のVC相界面析出に及ぼすα/γ結晶方位関係の影響

    Zhang Yongjie, 宮本吾郎, 古原忠

    第12回日本金属学会東北支部研究発表大会 2014/01/13

  78. Fe-Ni-C合金の応力誘起マルテンサイトにおけるバリアント選択

    知場三周, 宮本吾郎, 古原 忠

    第12回日本金属学会東北支部研究発表大会 2014/01/13

  79. Nitriding behaviors of Fe-M1-M2 ternary alloys

    G. Miyamoto, K. Shinbo, T. Furuhara, S. Suetsugu

    日本鉄鋼協会 第164回春季講演大会 2013/03/28

  80. EBSD and 3DAP Analysis on VC Interphase Precipitation in Low Carbon Steel

    Y.-J. Zhang, G. Miyamoto, T. Furuhara

    日本鉄鋼協会 第164回春季講演大会 2013/03/28

  81. Variant selection of ausformed martensite in Fe-Ni-C alloys

    T. Chiba, G. Miyamoto, T. Furuhara

    日本鉄鋼協会 第164回春季講演大会 2013/03/28

  82. Effects of initial structure on microstructural evolution during warm deformation of ferrite

    U.H. Lee, N. Kamikawa, G. Miyamoto, T. Furuhara

    日本鉄鋼協会 第164回春季講演大会 2013/03/28

  83. Carbon enrichment during ferrite transformation in Fe–2Mn–C alloy

    Zhenqing Liu, Goro Miyamoto, Tadashi Furuhara

    日本鉄鋼協会 第164回春季講演大会 2013/03/28

  84. Reverse transformation of austenite from martensite in Fe–Mn–C alloys during intercritical annealing

    Zhenqing Liu, Goro Miyamoto, Tadashi Furuhara

    日本鉄鋼協会 第164回春季講演大会 2013/03/28

  85. Fe-2Mn-C 合金のベイナイト組織

    金下武士, 宮本吾郎, 古原忠

    日本鉄鋼協会 第164回春季講演大会 2013/03/28

  86. 高炭素鋼の逆変態に及ぼす添加元素の影響

    宮本吾郎, 古原忠

    日本鉄鋼協会 第164回春季講演大会 2013/03/28

  87. 3DAP Analysis of VC Interphase Precipitation in Low Carbon Steel International-presentation

    Y. Zhang, G. Miyamoto, T. Furuhara

    The 5th International Symposium on Designing, Processing and Properties of Advanced Engineering Materials(ISAEM-2012) 2012/11/05

  88. 高Si添加マルテンサイト鋼の水素トラップ挙動に及ぼす焼戻し温度の影響

    寺本真也, 久保田学, 宮本吾郎

    日本ばね学会秋季大会 2012/11/02

  89. Alloying effects on formation of compound layer in the gaseous nitrided Fe-M binary alloys International-presentation

    F. Meng, S.. Komiyama, G. Miyamoto, T. Furuhara

    20th IFHTSE 2012/10/23

  90. フェライト磁化の実験値を用いたFe 基合金の磁場中状態図の熱力学的見積もり

    東北大金研強磁場セ, 吉澤清文, 高橋弘紀, 渡辺和雄, 東北大金研, 宮本吾郎, 古原忠, 鹿児島大院理工, 小山佳一

    金属学会2012年度秋期大会 2012/09/15

  91. ベイナイト変態におけるベイナイト/オーステナイト界面へのMo濃化挙動

    網野岳文, 重里元一, 宮本吾郎, 古原忠

    日本鉄鋼協会 第163回秋季講演大会 2012/09/15

  92. アトムプローブを用いたFe-C2元合金の炭素濃度の定量測定について

    宮本吾郎, 新房邦夫, 古原忠

    日本鉄鋼協会 第163回秋季講演大会 2012/09/15

  93. 共析・過共析パーライト鋼における粒界異常組織の生成

    宮本吾郎, 軽部陽介, 古原忠

    日本鉄鋼協会 第163回秋季講演大会 2012/09/15

  94. オースフォームドレンズマルテンサイトのバリアント選択

    知場三周, 宮本吾郎, 古原忠

    日本鉄鋼協会 第163回秋季講演大会 2012/09/15

  95. 低炭素鋼のVC相界面析出に及ぼすMn、Si添加の影響

    Yongjie Zhang, 宮本吾郎, 古原忠

    日本鉄鋼協会 第163回秋季講演大会 2012/09/15

  96. VCナノ析出物を有するフェライト・マルテンサイト二相鋼の引張変形挙動

    廣橋正博, 紙川尚也, 宮本吾郎, 古原忠

    日本鉄鋼協会 第163回秋季講演大会 2012/09/15

  97. In-situ characterization of bainite transformation by confocal laser scanning microscopy International-presentation

    T. Furuhara, S. Abe, G. Miyamoto

    Materials Science & Technology 2012 2012/09/07

  98. Comparison of Variant Selection between Lenticular and Lath Martensite Transformed from Deformed Austenite International-presentation

    Tadachika Chiba, Goro Miyamoto, Tadashi Furuhara

    International Union of Materials Research Society – International Conference in Asia – 2012 (IUMRS-ICA-2012) 2012/08/26

  99. Strengthening of Low Alloy Steels by Interphase Precipitation of Alloy Carbide International-presentation

    T. Furuhara, G. Miyamoto, N. Kamikawa

    International Union of Materials Research Society – International Conference in Asia – 2012 (IUMRS-ICA-2012) 2012/08/26

  100. Microstructure Change during Austenite Reversion in Fe-23Ni Alloy International-presentation

    H. Shirazi, G. Miyamoto, S. Hossein Nedjad, M. Nili Ahmadabadi, T. Furuhara

    International Union of Materials Research Society – International Conference in Asia – 2012 (IUMRS-ICA-2012) 2012/08/26

  101. Reconstruction of Austenite Orientation Map from Martensite Orientation Map International-presentation

    Goro Miyamoto, Tadashi Furuhara

    International Union of Materials Research Society – International Conference in Asia – 2012 (IUMRS-ICA-2012) 2012/08/26

  102. Effect of Initial Structure on Dynamic Recrystallization during Warm Deformation of Ferrite International-presentation

    U. H. Lee, N. Kamikawa, G. Miyamoto, T. Furuhara

    International Union of Materials Research Society – International Conference in Asia – 2012 (IUMRS-ICA-2012) 2012/08/26

  103. Effect of Initial Structure on Formation of Ultrafine Grains during Warm Deformation of Ferrite International-presentation

    Naoya Kamikawa, Un-Hae Lee, Goro Miyamoto, Tadashi Furuhara

    Proceedings of the International Workshop on Bulk Nanostructured Metals 2012/06/26

  104. Formation of nano-sized cluster and nitride during nitriding of ferrous alloys International-presentation

    G. Miyamoto, T. Furuhara

    The 3rd international symposium on steel science 2012/05/27

  105. Effects of Mo and B addition on bainite transformation in low-carbon low-alloy steels International-presentation

    T. Furhara, Kenji Takahashi, Naoki Takayama, G. Miyamoto, Taishi fujishiro, Masanori Minagawa

    The 3rd international symposium on steel science 2012/05/27

  106. Effect of initial structure on microstructural evolution during warm deformation of ferrite

    U. Lee, N. Kamikawa, G. Miyamoto, T. Furuhara

    日本鉄鋼協会 第162回秋季講演大会 (横国) 2012/03/28

  107. レンズおよびラスマルテンサイトのバリアント選択に及ぼすオースフォームの影響

    知場三周, 宮本吾郎, 古原忠

    日本鉄鋼協会 第162回秋季講演大会 (横国) 2012/03/28

  108. 窒化中のナノ析出を利用した鉄合金の表面硬化

    日本鉄鋼協会 第162回秋季講演大会 (横国) 2012/03/28

  109. フェライト/ベイナイト変態に伴うオーステナイトへの炭素濃化挙動

    高山直樹, 宮本吾郎, 古原忠

    日本鉄鋼協会 第162回秋季講演大会 (横国) 2012/03/28

  110. 低炭素鋼のベイナイトおよびラスマルテンサイト組織におけるバリアント選択

    高山直樹, 宮本吾郎, 古原忠

    日本鉄鋼協会 第162回秋季講演大会 (横国) 2012/03/28

  111. EBSD法を用いたFe-Cマルテンサイトの方位関係とバリアント隣接傾向の解析

    G.Miyamoto, A.Stormvinter, T.Furuhara, K A.Borgenstam

    日本鉄鋼協会 第162回秋季講演大会 (横国) 2012/03/28

  112. オースフォームドラスマルテンサイトにおけるバリアント選択の定量解析

    N.Iwata, N.Takayama, T.Furuhara

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  113. 低合金鋼における合金炭窒化物のナノ析出組織

    古原 忠, 紙川尚也

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  114. 低合金ラスマルテンサイトの三次元組織におよぼす固溶炭素の影響

    森戸茂一, 大庭卓也, 一ノ谷健太, 枝松勇真, 林泰輔, 足立吉隆, 古原忠, 宮本吾郎, 高山直樹

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  115. (低炭素鋼のベイナイトおよびラスマルテンサイト組織におけるバリアント選択)

    N. Takayama, G. Miyamoto, T. Furuhara

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  116. ベイナイト変態停留時の未変態オーステナイトへの炭素の濃化挙動

    N. Takayama, G. Miyamoto, T. Furuhara

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  117. Microstructural evolution during warm deformation of tempered martensite

    U. Lee, N. Kamikawa, G. Miyamoto, T. Furuhara

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  118. 相界面析出組織を有するV 添加低炭素鋼の引張変形挙動

    佐藤健介, 紙川尚也, 宮本吾郎, 古原忠

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  119. Fe-C 二元合金の強磁場中示差熱分析

    小山佳一, 池原佑基, 高橋弘紀, 木村尚次郎, 古原忠, 宮本吾郎, 渡辺和雄

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  120. 結晶学的異方性を考慮したベイニティックフェライト成長速度の解析

    阿部伸也宮本吾郎, 古原忠

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  121. The effects of transformation temperature and carbon content on proeutectoid ferrite fraction in Fe-2Mn-C alloys

    劉振清, 宮本吾郎, 古原忠

    日本鉄鋼協会 第161回春季講演大会 2011/09/20

  122. Dynamic recrystallization during hot deformation of tempered martensite in low and medium carbon steels

    U.H.Lee, N.Kamikawa, G.Miyamoto, T.Furuhara

    日本鉄鋼協会 第161回春季講演大会 (都市大学) 2011/03/25

  123. 母相方位再構築法を用いたオースフォームドマルテンサイトのバリアント選択解析

    宮本吾郎, 古原忠, 岩田直道, 高山直樹

    2011年春期金属学会講演大会(第148回) 2011/03/25

  124. ラスマルテンサイトのパケットおよびブロック三次元組織に及ぼす固溶炭素の影響

    森戸茂一, 大庭卓也, 枝松勇真, 一ノ谷健太, 足立吉隆, 古原 忠, 宮本吾郎, 高山直樹

    2011年春期金属学会講演大会(第148回) 2011/03/25

  125. α鉄中のクロムと窒素の相互作用 — 窒素の平衡固溶度に及ぼすクロムの影響による評価

    田中 友己, 沼倉 宏, 宮本, 吾郎, 古原 忠

    日本鉄鋼協会 第161回春季講演大会 (都市大学) 2011/03/25

  126. α鉄中のクロムと窒素,クロムと炭素の相互作用 — スネーク緩和に及ぼす クロムの影響からの評価

    田中 友己, 沼倉 宏, 宮本, 吾郎, 古原 忠

    日本鉄鋼協会 第161回春季講演大会 (都市大学) 2011/03/25

  127. 微細炭化物を有するV添加低炭素鋼の組織と機械的性質

    佐藤健介, 紙川尚也, 宮本 吾郎, 古原 忠

    日本鉄鋼協会 第161回春季講演大会 (都市大学) 2011/03/25

  128. 高炭素鋼ラスマルテンサイトの三次元観察

    一ノ谷健太, 森戸茂一, 大庭卓 也, 足立吉隆, 古原忠, 宮本吾郎

    日本鉄鋼協会 第161回春季講演大会 (都市大学) 2011/03/25

  129. SEM/EBSD法によるマルテンサイト・ベイナイトの結晶学的組織解析

    宮本吾郎

    日本鉄鋼協会 第161回春季講演大会 (都市大学) 2011/03/25

  130. オースフォームによるマルテンサイト・ベイナイトのバリアント選択

    G.Miyamoto, N.Iwata, N.Takayama, T.Furuhara

    日本鉄鋼協会 第161回春季講演大会 (都市大学) 2011/03/25

  131. ベイナイト変態停留時の未変態オーステナイトへの炭素の濃化挙動

    N.Takayama, G.Miyamoto, T.Furuhara

    日本鉄鋼協会 第161回春季講演大会 (都市大学) 2011/03/25

  132. Fe-1M(M=Al、Cr)合金のプラズマ窒化挙動に及ぼすV添加の影響

    末次祥太郎, 宮本吾郎, 古原忠

    熱処理技術協会(第70 回(平成22 年秋季)) 2010/11/29

  133. 共析・過共析パーライト鋼における粒界フェライト生成

    軽部陽介, 宮本吾郎, 古原忠

    熱処理技術協会(第70 回(平成22 年秋季)) 2010/11/29

  134. フェライト鉄におけるクロムと炭素,クロムと窒素の相互作用

    田中 友己, 沼倉 宏, 宮本 吾郎, 古原 忠

    鉄鋼協会第160回秋季講演大会 2010/09/25

  135. Effects of ausforming on bainite and martensite structures in low carbon steel

    N. Iwata, N. Takayama, G. Miyamoto, T. Furuhara

    鉄鋼協会第160回秋季講演大会 2010/09/25

  136. 低炭素鋼のベイナイト変態に及ぼすB,Nb添加の効果

    高山直樹, 宮本吾郎, 紙川尚也, 古原忠

    鉄鋼協会第160回秋季講演大会 2010/09/25

  137. 相界面析出組織を有するTi,Mo添加低炭素鋼の引張変形挙動

    紙川尚也, 阿部吉剛, 宮本吾郎, 古原 忠

    鉄鋼協会第160回秋季講演大会 2010/09/25

  138. Fe-1M(M=Al、Cr)合金のプラズマ窒化挙動に及ぼすV添加の影響

    末次祥太郎, 宮本吾郎, 古原忠

    鉄鋼協会第160回秋季講演大会 2010/09/25

  139. 共析・過共析パーライト鋼における粒界フェライト生成

    軽部陽介, 宮本吾郎, 古原忠

    鉄鋼協会第160回秋季講演大会 2010/09/25

  140. 中炭素鋼の相界面析出における析出サイトとしての異相界面構造

    古原 忠, 宮本吾郎, 紙川尚也

    日本金属学会 2010年春期(第146回)大会 2010/03/28

  141. オーステンパー処理を施した中炭素鋼の機械的性質

    鈴木健, 小野芳樹, 東北大金研, 宮本吾郎, 古原忠

    鉄鋼協会第159回春季講演大会 2010/03/28

  142. EBSD法によるオーステナイト方位の逆計算およびオースフォーム処理への適用

    宮本吾郎, 岩田直道, 高山直樹, 紙川尚也, 古原忠

    鉄鋼協会第159回春季講演大会 2010/03/28

  143. 純鉄の浸窒焼入れ組織

    宮本吾郎, 千葉真, 紙川尚也, 古原忠

    鉄鋼協会第159回春季講演大会 2010/03/28

  144. ベイナイト変態停留後のオーステナイト分解挙動

    高山直樹, 古原忠, 宮本吾郎, 紙川尚也

    鉄鋼協会第159回春季講演大会 2010/03/28

  145. 低炭素鋼のベイナイト・マルテンサイト組織に及ぼすオースフォームの影響

    岩田直道, 紙川尚也, 宮本吾郎, 古原忠

    鉄鋼協会第159回春季講演大会 2010/03/28

  146. 鉄のプラズマ窒化挙動に及ぼす合金元素複合添加の影響

    末次祥太郎, 紙川尚也, 宮本吾郎, 古原忠

    鉄鋼協会第159回春季講演大会 2010/03/28

  147. 純鉄の浸窒焼入れ組織

    千葉真, 宮本吾郎, 紙川尚也, 古原

    熱処理技術協会 2009/12/16

  148. ベイナイト・ラスマルテンサイトの 結晶学的組織解析

    宮本 吾郎, 古原 忠

    金属学会・鉄鋼協会中国四国支部 2009/12/02

  149. SEM / EBSD法を用いた局所弾塑性歪測定法と相変態への応用

    宮本吾郎, 古原忠

    東北大学金研大阪センター/大阪府立大学金属系新素材センター学学連携 2009/11/12

  150. TiおよびMo添加低炭素鋼における微細合金炭化物の析出

    阿部吉剛, 紙川尚也, 宮本吾郎, 古原忠

    鉄鋼協会第158回秋季講演大会(京都大学) 2009/09/15

  151. SEM/EBSD測定によるα/γ間の結晶方位関係の解析

    宮本吾郎, 古原

    鉄鋼協会第158回秋季講演大会 2009/09/15

  152. 低合金鋼のプラズマ窒化における析出及び表面硬化挙動

    古原忠, 富尾悠索, 宮本吾郎

    鉄鋼協会第158回秋季講演大会 2009/09/15

  153. 合金炭化物のナノ析出によるフェライトの高強度化

    古原忠, 紙川尚也, 宮本吾郎

    日本金属学会2009年秋期大会(第145回) 2009/09/15

  154. V添加中炭素鋼の相界面析出シート間隔の予測

    村上俊夫, 畑野等, 宮本吾郎, 古原忠

    鉄鋼協会第158回秋季講演大会 2009/09/15

  155. 熱間加工工程におけるV(CN)の一貫析出モデルの開発

    瀬沼武秀, 竹元嘉利, 永井太伊地, 新谷昌広, 首藤智旭, 古原忠, 宮本吾郎

    鉄鋼協会第158回秋季講演大会 2009/09/15

  156. Formation of martensite-austenite constituent in bainite structure in continuously cooled low carbon steels

    N. Takayama, G. Miyamoto, N. Kamikawa, T. Furuhara

    鉄鋼協会第158回秋季講演大会 2009/09/15

  157. 純鉄およびFe-18mass%Cr合金の浸窒焼入れ組織

    千葉真, 宮本吾郎, 紙川尚也, 古原

    鉄鋼協会第158回秋季講演大会 2009/09/15

  158. Alloying Effects on Reverse Transformation Kinetics from Pearlite in High Carbon Steels

    Z.-D. Li, G. Miyamoto, N. Kamikawa, T. Furuhara

    鉄鋼協会第157回春季講演大会 2009/03/29

  159. Quantitative observation of nano-sized particle distribution in a nitrided Fe-1Cr alloy

    Y Tomio, H. Aota, G. Miyamoto, T. Furuhara

    鉄鋼協会第157回春季講演大会 2009/03/29

  160. Crystallography of isothermally transformed low carbon bainite

    N. Takayama, G..Miyamoto, N.Kamikawa, T.Furuhara

    鉄鋼協会第157回春季講演大会 2009/03/29

  161. TiおよびMo添加低炭素鋼における微細合金炭化物の析出

    阿部吉剛, 紙川尚也, 宮本吾郎, 古原忠

    鉄鋼協会第157回春季講演大会 2009/03/29

  162. Heterogeneous nucleation on inclusions/precipitates in ferrite transformation of steel

    T.Furuhara, G.Miyamoto

    鉄鋼協会第156回秋季講演大会 2008/09/23

  163. 中炭素鋼の初析フェライト生成に伴うVC相界面析出

    堀亮太, 宮本吾郎, Behrang Poorganji, 古原忠

    鉄鋼協会第156回秋季講演大会 2008/09/23

  164. V添加中炭素鋼の等温変態したフェライト中での相界面析出挙動

    村上俊夫, 宮本吾郎, 堀亮太, 古原忠

    鉄鋼協会第156回秋季講演大会(熊本大学) 2008/09/23

  165. High temperature nitriding behavior of Fe-1mass%M(M=Al,Cr,V,Ti) binary alloys

    青田洋人, 富尾悠索, 宮本吾郎, 古原忠

    鉄鋼協会第156回秋季講演大会(熊本大学) 2008/09/23

  166. SEM/EBSD法によるレンズマルテンサイト生成に伴う変態歪の定量解析

    宮本吾郎, 古原忠

    日本金属学会東北支部 2008/09/23

  167. プラズマ窒化した Fe-C-M 3 元高炭素マルテンサイト鋼の表面硬化とその微細組織

    富尾悠索, 木津谷茂樹, 大石敬一郎, 宝野和博, 宮本吾郎, 古原 忠

    日本金属学会2008年春期(第142回)大会 2008/03/28

  168. Alloying effect on austenitization kinetics from tempered high carbon martensite

    臼杵博一, 宮本吾郎, 古原忠

    鉄鋼協会第155回春季講演大会(武蔵工業大学) 2008/03/28

  169. Growth of cementite with alloy partitioning during tempering of martensite

    G.Miyamoto, T.Furuhara

    鉄鋼協会第155回春季講演大会(武蔵工業大学) 2008/03/28

  170. Development of new model evaluating the particle distribution in precipitation during nitriding

    富尾悠索, 宮本吾郎, 古原忠

    鉄鋼協会第155回春季講演大会(武蔵工業大学) 2008/03/27

  171. プラズマ窒化した鉄合金における析出組織

    鉄鋼協会第155回春季講演大会(武蔵工業大学) 2008/03/26

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    古原忠,富尾悠索,宮本吾郎

  172. Incomplete transformation of bainite in microalloyed high strength low alloy steels

    Tadashi Furuhara, Kenji Takahashi

    日本鉄鋼協会第155回春季講演大会 2008/03/26

  173. Controlling Factors of Grain Sizes in Ferrous Martensite and Bainite International-presentation

    The 6th Pacific Rim International Conference on Advanced Materials and Processing (PRICM-6) 2007/11/06

  174. Fe-0.6%Cマルテンサイト鋼のオーステナイトへの逆変態挙動

    臼杵博一, 宮本吾郎, 古原忠

    熱処理技術協会第65回秋季講演大会 2007/10/03

  175. 高炭素マルテンサイト鋼のプラズマ窒化挙動

    富尾 悠索, 木津谷 茂樹, 宮本 吾郎, 古原 忠

    熱処理技術協会第65回秋季講演大会 2007/10/03

  176. Effect of B and Mo Addition on Transformation Behavior of Low Carbon Steel

    K. Takahashi, G. Miyamoto, T. Furuhara

    日本鉄鋼協会,第154回秋季講演大会(岐阜大学) 2007/09/18

  177. Microstructure of plasma-nitrided high carbon martensitic steels

    S. Kitsuya, Y. Tomio, G. Miyamoto, T. Furuhara

    日本鉄鋼協会,第154回秋季講演大会(岐阜大学) 2007/09/18

  178. Fe-0.6%Cマルテンサイト鋼のオーステナイトへの逆変態挙動

    臼杵博一, 宮本吾郎, 古原忠

    日本鉄鋼協会,第154回秋季講演大会(岐阜大学) 2007/09/18

  179. SEM-EBSDによる局所歪測定法を用いたレンズマルテンサイト周囲の変態歪測定

    宮本吾郎, 古原忠, 柴田曉伸, 牧正志

    金属学会,第141回秋季講演大会 2007/09/18

  180. Dynamic Recrystallization in Titanium Alloys by Hot Deformation International-presentation

    The 11th Interantional Conference on Titanium (Ti-2007): 2007/06/03

  181. On the Controlling Factors of Grain Sizes in Ferrous Martensite and Bainite International-presentation

    The 1st Interantional Symposium on Steel Science (IS3-2007) 2007/05/16

  182. Precise Measurement of Accommodation Strain in Austenite Surrounding Martensite

    T. Furuhara, A. Shibata, T. Maki

    日本鉄鋼協会第153回春季講演大会 2007/03/29

  183. 高炭素マルテンサイト鋼のプラズマ窒化組織

    木津谷茂樹, 古原忠

    日本鉄鋼協会,第153回春季講演大会 2007/03/28

  184. 低炭素鋼の変態挙動に及ぼすB、Mo添加の影響

    高橋健二, 古原忠

    日本鉄鋼協会,第153回春季講演大会 2007/03/28

  185. Fe-M二元合金の窒化層の成長kinetics

    富尾悠索, 古原忠

    日本鉄鋼協会,第153回春季講演大会 2007/03/28

  186. 相変態と再結晶による超微細粒鋼創製のメタラジー

    日本鉄鋼協会東北支部 湯川記念講演会 2006/12/18

  187. Variant Selection in Grain Boundary Nucleation of Upper Bainite International-presentation

    H. Kawata, G. Miyamoto, S. Morito, T. Maki

    Materials Science & Technology 2006 2006/10/15

  188. Plasma Nitriding Behavior of Fe-18mass%Cr Alloy International-presentation

    G. Miyamoto, Y. Tanaka, A. Yonemoto, T. Maki

    The 16th International Congress on Heat Treatment of Materials and Surface Engineering 2006/09/25

  189. 窒素添加β型チタン合金の超弾性挙動

    富尾悠索, 牧正志

    日本鉄鋼協会 第152回秋季講演大会 2006/09/16

  190. Plasuma nitriding behavior of austenitic stainless steels

    田中佑允, 宮本吾郎, 牧正志

    日本鉄鋼協会 第152回秋季講演大会 2006/09/16

  191. 鉄合金マルテンサイトの形態変化に及ぼす正方晶性および変態時体積変化の影響

    宍戸久郎, 柴田暁伸, 牧正志

    日本金属学会 第139回秋期大会 2006/09/16

  192. プラズマ窒化したFe-1%Al合金の内部窒化組織

    富尾悠索, 宮本吾郎, 牧正志

    日本金属学会 第139回秋期大会 2006/09/16

  193. Fe-1%M(M=Ti,V,Al,Cr)2元合金の内部窒化挙動

    宮本吾郎, 田中佑允, 牧正志, 富尾悠索

    日本金属学会 第139回秋期大会 2006/09/16

  194. EBSD法を用いた鉄鋼材料の相変態組織の解析

    宮本吾郎, 牧 正志

    日本鉄鋼協会 第152回秋季講演大会 2006/09

  195. Effect of Initial Microstructures on Plasma Nitriding Behavior of Fe-10%Cr Alloys International-presentation

    G. Miyamoto, Y. Tanaka, T. Maki

    The 3rd International Conference on Advanced Structural Steels 2006/08/22

  196. Precipitation in a Plasma Nitrided Fe-1.0mass%Al Alloy International-presentation

    Y. Tomio, G. Miyamoto, T. Maki

    The 3rd International Conference on Advanced Structural Steels 2006/08/22

  197. The Effects of Tetragonality of Martensite and Volume Change Accompanying Martensitic Transformation on the Morphology of Alpha' Martensite in Iron Based Alloys International-presentation

    A. Shibata, H. Shishido, H. Ogiso, T. Maki

    The 3rd International Conference on Advanced Structural Steels 2006/08/22

  198. Refinement of Cementite in Lath Martensite by Rapid-heating Tempering International-presentation

    K. Kobayashi, G. Miyamoto, T. Maki

    The 3rd International Conference on Advanced Structural Steels 2006/08/22

  199. Formation of (Ferrite+Cementite) Microduplex Structure by Warm Deformation in High Carbon Steels International-presentation

    T. Yamaguchi, S. Furimoto, T. Maki

    The International Conference on Processing and Manufacturing of Advanced Materials 2006/07/04

  200. Substructure and Crystallography of Degenerate Pearlite in an Fe-C Binary Alloy International-presentation

    T. Moritani, K. Sakamoto, T. Maki

    The International Conference on Processing and Manufacturing of Advanced Materials 2006/07/04

  201. Growth kinetics of iron carbide with partitioning of Mn and Si

    宮本吾郎, 牧 正志, Juncheol Oh, 宝野和博

    日本鉄鋼協会 第151回春季講演大会 2006/03/21

  202. Formation of columnar structure in plasma nitrided Fe-Cr alloys (Plasma nitriding behavior of Fe-Cr alloys-1)

    宮本吾郎, 田中佑允, 米本篤志, 牧正志

    日本鉄鋼協会 第151回春季講演大会 2006/03/21

  203. Effect of initial microstructures on plasma nitriding behavior of Fe-high Cr alloys (Plasma nitriding behavior of Fe-Cr alloys-2)

    田中佑允, 宮本吾郎, 米本篤志, 牧正志

    日本鉄鋼協会 第151回春季講演大会 2006/03/21

  204. 鉄合金マルテンサイトの形態変化に及ぼす正方晶性および変態時体積変化の影響

    宍戸久郎, 牧正志

    日本鉄鋼協会 第151回春季講演大会 2006/03/21

  205. Fe-Ni合金のレンズマルテンサイトの異相界面構造

    柴田暁伸, 牧正志

    日本金属学会 第138回春期大会 2006/03/21

  206. 窒素添加Ti-10V-2Fe-3Al合金の超弾性特性におよぼす冷却速度の影響

    富尾悠索, 牧正志

    日本金属学会 第138回春期大会 2006/03/21

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Research Projects 32

  1. 相界面科学に基づく強靱鋼設計の新展開 ー 動的偏析制御による破壊限界突破 ー

    古原 忠, 宮本 吾郎, 榎木 勝徳, 大谷 博司

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(A)

    Institution: 東北大学

    2023/04/01 - 2026/03/31

  2. ハイエントロピー合金新学術領域研究の連携的な運営と統括

    乾 晴行, 加藤 秀実, 尾方 成信, 小山 敏幸, 辻 伸泰, 古原 忠

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 新学術領域研究(研究領域提案型)

    Institution: 京都大学

    2023/04/01 - 2024/03/31

  3. 鉄合金のインタースティシャルサブラティス設計 - 多様な周期構造がもたらす新機能

    古原 忠

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 挑戦的研究(萌芽)

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2022/06/30 - 2024/03/31

  4. 破壊に強い高強度鋼の先進的設計 - 粒界偏析制御におけるパラダイム転換

    古原 忠, 大谷 博司, 秋山 英二

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 基盤研究(A)

    Category: 基盤研究(A)

    Institution: 東北大学

    2020/04/01 - 2023/03/31

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    [粒界偏析の温度依存性と他元素添加の影響解明] 不純物粒界偏析の温度依存性を高純度のFe-P合金を用いて調査した。焼鈍温度を低くすると、フェライト粒界におけるPの偏析量が高くなることが明らかとなった。また、Fe-P二元合金とともにCを微量添加したFe-P-C三元合金に対して比較実験を行った結果、Cが粒界に偏析することによってPの偏析量が低下し、P-C間の反発的相互作用がその主因であることがわかった。 [第一原理・MDによる大角粒界の原子構造の評価法確立] 粒界構造を対象とした大規模な原子シミュレーションを可能にすることを目的として、第一原理計算の精度で古典分子動力学法を行うニューラルネットワークポテンシャルの作成を進めた。作成したポテンシャルからは数万原子規模の原子シミュレーションが可能であることを確認した。一方、作成したポテンシャルの計算精度を検証した結果、Fe原子配置 (BCC) は現実と異なり、HCP構造が過剰に安定である課題が明らかとなった。 [不純物元素偏析下での腐食挙動の評価] これまで、粒界腐食進展速度の粒界P偏析量との関係を調査し、その腐食進展速度に結晶方位差依存性があることを見出した。より具体的には、Pの偏析量が多いほど腐食進展速度は速く、小角粒界に比べて大角粒界でより大きな進展速が観察された。この成果に関する追試を行い、統計的な妥当性を確認した。

  5. ハイエントロピー合金新学術領域研究の連携的企画運営

    乾 晴行, 尾方 成信, 辻 伸泰, 古原 忠, 小山 敏幸, 加藤 秀実

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 新学術領域研究(研究領域提案型)

    Category: 新学術領域研究(研究領域提案型)

    Institution: 京都大学

    2018/06/29 - 2023/03/31

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    新学術領域研究「ハイエントロピー合金:元素の多様性と不均一性に基づく新しい材料の学理」を構成する多様な研究者が行う研究を相互に有機的に関連付けて、多様な観点から共同研究を企画・管理することにより、各研究者の研究にさらなる進展とブレークスルーをもたらすとともに、これらの研究成果がハイエントロピー効果という新規な概念のもと、最先端のナノ解析実験研究、最先端計算科学、最先端材料創製研究を融合させて、「未開の多成分系状態図の中央近傍の組成を持つハイエントロピー合金が示す新規で特異な材料物性をハイエントロピー効果と言う新規な概念からその本質を明らかにし、多様な構成元素間の非線形相互作用(カクテル効果)に潜む新たな材料科学の学術領域を打ち立てる」という領域全体の目標に対して最大限の寄与が出来るよう各個別研究および共同研究の方向付けを行っている。具体的には、領域全体の管理運営を行う事務局体制を整備し、領域内の各グループで実施されている研究内容を把握し、異なる背景の研究者間の研究言語を咀嚼、翻訳、統一し、「何が明らかになったのか」また「何を明らかにすべきか」を明確にした上で、総括班会議、領域全体研究会、各研究項目内連携会議、各計画研究班内会議などを企画・組織を通して、構成メンバー全員の共通認識となるようその周知に努める。また、大型共通設備(SPring-8、J-PARC、金研スーパーコンピューターなど)について利用のための講習会を開催しその利用を支援し、国際活動支援班を設けることにより、国内だけでなく国際的にも各研究グループ間の人材交流についての調整・交渉の窓口を行っている。また、ホームページやシンポジウム、若手の研究会,さらには関連各学会での講演会を企画・運営し、領域の最新研究動向や成果を学界をはじめ広く社会に発信している。

  6. ハイエントロピー合金に内在する元素間相互作用と相安定性原理の実験的解明

    古原 忠, 荒木 秀樹, 杉山 和正, 井上 耕治

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 新学術領域研究(研究領域提案型)

    Category: 新学術領域研究(研究領域提案型)

    Institution: 東北大学

    2018/06/29 - 2023/03/31

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    本年度は,以下の項目についての研究を行った. (1)fccおよびbcc基の規則相を有するFe-Ni-AlおよびFe-Ni-Mn合金に注目して時効硬化挙動を幅広い時効条件で評価した.Fe-Ni-Al合金の微細組織をTEMおよび3DAPを用いて調査することで,時効硬化の初期段階でAl-Niの引力相互作用が関係する規則化を伴う相分離が生じていることが示唆される結果が得られた. (2)ハイエントロピー合金に内在する構成元素間の短距離秩序(SRO)および中距離秩序(MRO)の構造詳細を,X線回折法およびX線分光学的手法を用いて解明することを目指した。その中で,非晶質合金に内在するSROおよびMROの構造解明,Fe-Ni-Mn合金粗大結晶材の時効処理に対応する散漫散乱の直接観測,Fe-Ni系合金の各元素の秩序化配列の評価などを試みた. (3)CoCrFeMnNiハイエントロピー合金における積層欠陥への偏析の有無を調べたが,積層欠陥が存在する領域の元素マップからは,明瞭な積層欠陥への偏析は確認できなかった.一方,CrCoNiの[111]および[100]方向のSpatial Distribution Mapの測定から,[111]方向では濃度変調は見られないが、[100]では1原子面おきに濃度変調が観測され,形成初期段階のL12やL10が存在する可能性が示唆された. (4)典型的な高エントロピー合金であるCoCrFeMnNiについて原子空孔の形成エンタルピーを評価した。陽電子寿命法により求めたCoCrFeMnNi合金の空孔形成エンタルピーは構成元素の純金属と比較しても顕著な差は見られなかった.第一原理計算による結果では空孔形成エンタルピーは約0.8 eVの分布幅を示すが、各原子種の平均値は約2.0 eVと一定の値となり、原子種による大きな差は見られなかった.

  7. Establishment of novel strengthening principle of steels by spinodal ordering of light elements

    Furuhara Tadashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2017/04/01 - 2020/03/31

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    Focusing on the interaction between interstitial and substitutional elements, the clustering behaviors by competition and coupling of ordering and phase separation during tempering of carbon/nitrogen martensite and nitriding process were investigated experimentally and theoretically. With the addition of substitutional elements, the kinetics of low-temperature tempering of high-carbon martensite was found to be delayed, while the resistance to temper softening occurs due to the formation of alloy carbide/nitride and nano-cluster, as well as the suppression of dislocation recovery. Moreover, the clustering behavior inducing the formation of nitride can enhance surface hardening during nitriding process. Such a precipitation sequence was reproduced by the combination of first-principles thermodynamics and kinetic Monte Carlo calculation.

  8. Effect of alloying element on the ferrite transformation in nitrogen austenite

    Sato Mitsutaka, Furuhara Tadashi, Miyamoto Goro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2017/04/01 - 2019/03/31

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    In this research, ferrite transformation behavior of Fe-N alloy and the effect of alloying element were investigated using pure iron and 1 mass% of Mn, Mo and Cr added alloy. The nitrogen austenite was obtained by nitriding method, and then, the nitrided samples were isothermally treated in the α + γ two-phase region for several period of time. The two types of morphology of AF and WF were obtained with changes in the driving force of ferrite transformation. The AF was nucleated from the prior austenite grain boundaries, and the AF has K-S OR with one side of the adjacent prior austenite grains and grew into the grains having non K-S OR. On the other hand, the WF had the K-S OR with the prior austenite grain. Transformation was retarded by the addition of Mn and Mo. In the Cr added alloy, the ferrite transformation progressed with the interface precipitation of CrN.

  9. シンクロ型LPSO構造材料科学の成果取りまとめと情報発信

    河村 能人, 中島 英治, 相澤 一也, 古原 忠, 神山 崇, 大谷 博司

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 新学術領域研究(研究領域提案型)

    Category: 新学術領域研究(研究領域提案型)

    Institution: 熊本大学

    2016/04/01 - 2017/03/31

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    常識を覆すような高強度を示す合金が我が国で開発され、世界的に注目されている。この合金の強化相は、濃度変調と構造変調が同期した新奇な長周期積層型規則構造(シンクロ型LPSO 構造 “Synchronized Long-Period Stacking Ordered Structure”)を有している。この新奇な構造の原子配列構造、形成メカニズム、力学特性・強化原理を解明するために,本申請者が領域代表者となって、文部科学省科学研究費助成事業の新学術領域研究(領域提案型)「シンクロ型LPSO構造の材料科学 -次世代軽量構造材料への革新的展開-」を平成23年度~27年度に実施し、日本発の新たな学術領域を打ち立てることに成功した。その成果を広く公開するために、国内では産学官交流会「高性能Mg合金創成加工研究会」を開催する。また、平成28年12月4-7日にシンクロ型LPSO構造を有するマグネシウム合金をテーマとした国際会議である「The 3rd International Symposium on Long-Period Stacking Ordered Structure and Its Related Materials (LPSO2016)」を京都で開催した。海外7ヶ国からの16名を含めて約80名の参加者が集まり、新奇なシンクロ型LPSO相を有するマグネシウム合金の研究結果について、最新の研究成果報告と熱心な討議がなされた。参加国は、ロシア、アメリカ、ドイツ、オーストラリア、ノルウエー、中国、台湾、日本であり、国際色が高い会議であった。海外の研究者から「本国際会議は研究レベルが極めて高くて深い議論ができる稀有な国際会議であるので今後も引き続き開催してほしい」という要望が寄せられ、高く評価された。

  10. Research on creation method of nano-lamellar dual phase steel using incomplete transformation of high nitrogen bainite

    Tadashi Furuhara, Sato Mitsutaka, Shimaya Shota

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2015/04/01 - 2017/03/31

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    In order to create a novel nano-lamellar dual phase structure utilizing an incomplete transformation of bainite transformation in iron alloys, exploration of preparation condition of high nitrogen steels using nitriding and quenching process and the effect of alloying element on the concentration behavior of nitrogen and phase stability of each phase were investigated. In this study, pure iron and Fe-1mass%M alloys containing Si, Cr, Mn and Mo were used as starting materials. The samples with uniform nitrogen concentration were successfully obtained by controlling the partial pressure of introduced gas and treatment temperature. In the subsequent isothermal transformation treatment, formation of iron nitride was suppressed by Cr and Mo addition, and it became clear that a large amount of austenite retained.

  11. Materials Science on Synchronized LPSO Structure - Innovative Development to Next-generation Lightweigt-structural Materials -

    KAWAMURA Yoshihito, HAGIHARA Koji, AIZAWA Kazuya, KIMURA Shigeru, FURUHARA Tadashi, HIGASHIDA Kenji, INUI Haruyuki, OKUDA Koji, NAKATANI Akihiro, KIMIZUKA Hajime, NAKASHIMA Hideharu, OHASHI Tetsuya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: Kumamoto University

    2011/04/01 - 2016/03/31

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    The purpose of this group is the management of the project for significant research outcomes by promoting collaborations between the project members, providing common samples and/or research facilities, and assisting the development of young researchers. The distinguishing features are (i) the organization consisting of six sections and four secretariats with specific purposes, (ii) the assistance of research activities by providing research facilities and common samples, (iii) the special programs for young researchers and (iv) the promotion of various events to get attention to this project. The main achievements of this group are the effective management of this project due to various meetings with specific purposes, the efficient researches by provided common samples and/or research facilities, the active collaborations between the project members, the growing attention to this project through the various events, and enough research outcomes from young researchers.

  12. Clarificaltion of formation mechanisms of formation mechanisms of LPSO structure based upon strain energy consideration

    FURUHARA Tadashi, KIGUCHI Takanori, NISHITANI Shigeto, KOYAMA Toshiyuki, HAYASHI Kouichi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: Tohoku University

    2011/04/01 - 2016/03/31

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    This study aims to clarify formation mechanisms of Synchronized Long-Period Stacking Ordered (LPSO) Structure which features synchronization of chemical and structural modulation and show superior mechanical properties including high strength owing to unique atomic arrangement of LPSO structure, focussing on mainly effects of elastic strain caused by strucural transition. In particular, process of stacking sequence change and relating local strain field as well as segregation of solute elements were examined by high resolution electron microscopy and three dimensional atom probe tomography. Furthermore, computational methods, i.e., both the first principle calculation and phase field simulation, were applied for theoretical analyses of energetics and kinetics in LPSO structure formation.

  13. Creation of New Principles in the Multi-scale Design of Steels Based on Light Element Strategy

    Tadashi Furuhara, Hiroshi Ohtani, Hiroshi Numakura, Kaneaki Tsuzaki

    2011/04 - 2016/03

  14. Improving performance of steel by establishing novel "SMC processing" heat treatment

    FURUHARA Tadashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2013/04/01 - 2015/03/31

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    In this research, Fe-M binary alloys were nitrided after deformation by high pressure torsion in order to clarify effects of strain on nitriding behavior. It was found that precipitation of AlN is accelerated by the strain, leading to larger surface hardening, while effects of strain on surface hardness are small in pure Fe and Fe-Cr alloy. This is because strain in pure Fe is rapidly recovered by recrystallization and precipitation of Cr nitride does not need dislocation as a nucleation site. Furthermore, it is found that homogeneous compound layer can be formed by deformation prior to nitriding treatment in Fe-Al alloy.

  15. Dynamics of phase transformations in steel obtained by controlled heating

    FURUHARA Tadashi, MIYAMOTO Goro, KAMIKAWA Naoya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2011/11/18 - 2014/03/31

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    In this study, microstructure change during reversion of steels was examined focussing on (1) effects of initial structure, (2) non-equilibrium partitioning of alloying elements, and (3) crystallographic constraints during reversion. Main results obtained are as follows. In Fe-high Ni alloys, displacive transformation occurs during reversion with austenite memory. However, a high dislocation density in reversely transformed austenite induces recrystallization which results in disappearance of the memory effect during further holding. In Fe-Mn-C alloys, reversely transformed austenite exhibits two kinds of distinctive morphologies, granular and acicular. Those morphologies are different in crystallographic character with respect to martensite matrix. Also, it was revealed that the granular austenite is formed in non-equilibrium in the beginning and reaches to the equilibrium in the later stage of reversion.

  16. Study on phase transition of functional materials by X-ray fluorescence holography

    HAYASHI Kouichi, FURUHARA Tadashi, YAMAMOTO Tokujiro, KAKESHITA Tomoyuki, TERAI Tomoyuki, MATSUSHITA Tomohiro, SUZUKI Motohiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2010 - 2012

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    We have developed X-ray fluorescence holography apparatus with a cryostat system, which can cool samples down to 5 K. And, holograms of Ti50Ni50-xFexsystems were measured at temperatures below and above the phase transitiontemperatures. Moreover, we applied the X-ray fluorescence holography to the evaluations of local lattice distortions around Ga and in In0.995Ga0.005Sb. Resultingly, it was founded that neighboring atoms around dopants are displaced along the angular direction rather than the radial direction.

  17. Precipitation induced recrystallization -Clarification of new recrystallization phenomena and its application to texture control

    FURUHARA Tadashi, MIAYMOTO Goro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2007 - 2009

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    The effects of initial α grain boundary and lath martensite structure on precipitation induced recrystallization(PIR) have been investigated. The growth of recrystallized grains is inhibited at the boundary misoriented larger than 5 degrees, resulting in the formation of new ferrite grain at these boundaries. The PIR was found to appear in the austenitic high-Cr alloy in which austenite is stabilized by the Ni addition. This implies that the PIR can takes place generally regardless of crystal structure of the matrix when the volume fraction of precipitate is higher.

  18. 高靱性高耐食鋼の開発を目指したガス-デガスプロセスの応用による表層粒界構造制御

    古原 忠, 宮本 吾郎

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 萌芽研究

    Category: 萌芽研究

    Institution: 東北大学

    2007 - 2008

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    本年度は、析出誘起再結晶が発現するフェライト系ステンレス合金(Fe-18%Cr)およびオーステナイト系ステンレス合金(Fe-20%Cr-10%Ni)を823Kで18ksプラズマ窒化した後, 種々の温度まで再加熱して水素焼鈍を施し, その組織変化を調べた. 窒化したFe-18Cr合金およびFe-20Cr-10Ni合金を823K〜1023Kで水素焼鈍した後EBSD測定により, 再結晶集合組織を調べた結果, 両合金ともに窒化時の析出誘起再結晶組織が, 水素焼鈍後にも変化せず存在することが明らかとなった. Fe-18Cr合金を823Kで36ks水素焼鈍しても, 窒化物組織に顕著な変化は見られない. 923Kで36ksの水素焼鈍を施した場合には, 窒化層内のCrNラメラが一部球状化し始め, 未窒化層内でも窒化物が生成することが明らかとなった. しかしながら, 水素焼鈍温度を1023Kまで上げて, 144ks保持しても窒化層内の窒化物の球状化は促進するものの脱窒は進まない. Fe-20Cr-10Ni合金の水素焼鈍でも, 窒化物の球状化が観察されたが脱窒反応は完了せずCr窒化物が表面近傍に残存することが明らかとなった. 以上より, フェライト系およびオーステナイト系ステンレス鋼の窒化で発現する析出誘起再結晶の集合組織は水素焼鈍後も残存するが, 1023Kで長時間の水素焼鈍処理を行っても脱窒反応が完了しない. より高温での水素焼鈍処理を施すことで, Cr窒化物が固溶して母相Cr濃度の増加が予想されることから, 集合組織制御した高耐食性合金を作成できる可能性が示唆された.

  19. INTERPHASE BOUNDARY STRUCTURE AND HABIT PLANE OF LENTICULAR MARTENSITE IN IRON-BASED ALLOYS

    MAKI Tadashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: KYOTO UNIVERSITY

    2005 - 2006

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    In iron-based alloys, the morphology of martensite changes from lath to lenticular and thin plate with a decrease in Ms temperature. In the present study, in order to make clear the reason of martensite morphology change, substructure and crystallographic features such as habit plane, orientation relationship, interphase boundary structure, etc) were observed in detail by means of transmission electron microscopy using mainly Fe-Ni alloys. Main results obtained are as follows. 1.Lenticular martensite plate consists of three parts, i.e., (1)the mid-rib which is completely twinned, (2)the twinned region in which some twins are extended from the midrib, (3)the untwined region which contains a high density of dislocations. Midrib is the region at which the transformation is initiated, and has the same morphology (thin plate) and crystallography ({3,10,15}habit plane, G-T orientation relationship) as those of thin plate martensite. 2.The orientation relationship of lenticular martensite is G-T at the mid-rib but gradually deviates towards K-S near the M/A interface. This change is related to the change in the substructure of martensite. 3.Although the interface of lenticular martensite is usually smooth in the scale of optical microscopy, it becomes irregular when the Ms temperature is increased near room temperature, and exhibits many {225}A facets. The {225}A plane corresponds to the habit plane of lath martensite. 4.The interphase boundary of lenticular martensite consists of two sets of screw dislocations which accommodate transformation strain. This boundary structure is same as that of lath martensite. 5.It was concluded that the change of marteniste morphology results from the change in the mode of lattice invariant shear during transformation. Martensite morphology becomes thin-plate when the twinning occurs, and the lath shape when the slip occurs. When the lattice invariant shear changes from twinning to slip during the growth, morphplogy of martensite becomes lenticular.

  20. Microstructure control of ferrous martensite by defects inherited from austenite

    MAKI Tadashi, FURUHARA Tadashi, MORITO Shigekazu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Kyoto University

    2002 - 2004

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    (1)Inheritance of matrix dislocation and precipitate into martensite In ausformed lath martensite in Fe-20%Ni-5.5%Mn, dislocations introduced in the austenite are inherited into martensite with the Bain correspondence. γ'-Ni3Al precipitated in the austenite of Fe-31%Ni-10Co-3Ti is inherited into thin-plate martensite. When γ', which has a finer size due to a short aging, changes its structure by transformation shear, thermally elastic martensite is formed in the cooling. When the γ' size gets larger by prolonged aging, no structure change occurs for γ' and athermal martensite is formed in the cooling. (2)Refinement of lath martensite by precipitation Lath martensite packets/blocks are refined by decreasing austenite grain size in Fe-(1.5,2)Mn-0.2C alloys. In the austenite of which grain size is about 2μm with pinning by alloy carbide, a block size of 1μm was obtained. The strength of the as-quenched martensite increases by following a Hall-Petch type relation against the block size. Finely dispersed V(C,N) particles are capable of refining the lath martensite structure. (3)The change of martensite/bainite substructure with inherited dislocations In lenticular martensite, substructure changes from twinning to dislocations. Near the martensite/austenite interface, the austenite contains tangled dislocations due to plastic accommodation of transformation strain. Similar tangled dislocations are also observed in the martensite, resulting in local lattice orientation near the interface. It is concluded that those dislocations are inherited from the surrounding austenite. It is observed that the deformation of austenite prior to transformation (ausforming) refines lath martensite structures but results in the coarsening of upper bainite structures in Fe-Ni alloys.

  21. オーステナイト母相の超微細化による新しい変態組織形成の可能性

    牧 正志, 古原 忠, 森戸 茂一

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 萌芽研究

    Category: 萌芽研究

    Institution: 京都大学

    2002 - 2003

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    本年度は,低合金鋼における超微細粒オーステナイトからの変態組織の特徴を明らかにするため,以下の研究を行った. (1)超微細オーステナイト粒からのマルテンサイト変態組織 Fe-1.5%Mn-0.2%C合金とそのV, N添加材で,オーステナイト単相域溶体化後の焼入れ焼もどしによりセメンタイトやV(C, N)を微細析出させた後,オーステナイト(+V(C, N))温度域で逆変態させ,粒径約2μmまでの微細オーステナイト粒を得た.これらオーステナイトを再度焼入れることで,ブロック径約1μmの超微細ラスマルテンサイト組織が得られた.また,オーステナイト粒の超微細化に伴い,焼入れままマルテンサイトの強度がブロック径に対してHall-Petch則に従って上昇すること,特定のパケットが優先的に発達する傾向が強くなることを見出した. (2)超微細オーステナイト粒からのパーライト変態組織 共析炭素鋼とそのV添加材を用い、焼もどしマルテンサイトやパーライトの冷間強加工→逆変態により粒径約2μmまでの超微細オーステナイト粒を得た後、A_1点以下で等温保持によりパーライト変態させた.その結果,オーステナイト粒径が微細化に伴いパーライトのブロック/コロニーサイズは小さくなるが,フェライト変態と同様に粒径変換比が1に近づく傾向が見られた。 (3)超微細オーステナイト粒からの拡散変態の理論的解析 Fe-1.5%Mn-0.2%C合金のγ→α連続冷却変態時における粒径変換比(オーステナイト粒径/フェライト粒径)および共析鋼のパーライト変態における粒径変換比(オーステナイト粒径/コロニーおよびパケット径)についてCahnの粒界核生成理論を拡張して理論的検討を行った結果,オーステナイト粒径が微細になるほど粒径変換比が1に近づき,変態による効果的な微細化には,加速冷却により大きな変態の過冷度を得ることが必要であることが示唆された.

  22. Control of Interphase Bowdlerizes in Steel

    MAKI Tadashi, MORITO Shigekazu, FURUHARA Tadashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A).

    Category: Grant-in-Aid for Scientific Research (A).

    Institution: KYOTO UNIVERSITY

    1998 - 2000

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    The (α+γ) and (α+θ) lamellar structures are heavily cold rolled and annealed to form the microduplex structures of which α grain size is less than 1 μm. α phase exhibits a subgrain structure in the (α+γ) case whereas α phase contains both of high angle and low angle boundaries in the (α+θ) case. VC in y.and s-Cu in α are both coherent to their matrices after solution treatment and aging. However, they become incoherent by losing the original orientation relationship after the recrystallization of matrix. After losing coherency, these precipitates coarsens vary rapidly. In the bcc precipitation from fcc matrix in a Ni-Cr alloy, regardless of the presence of near rational orientation relationship, precipitate (bcc)/matrix(fcc) interphase boundaries exhibit planar facets that often contain ledges and regularly aligned line defects. The boundary orientations of the planar facets correspond to the planes with the higher densities of coherent atoms by analyzing the geometrical near coincidence site model. Relation between the (α+θ) microstructure and the superplastic behavior in ultra-high carbon steels has been studied. The austenitizing, quenching and tempering treatment of pearlite structure produces an (α+θ) microduplex structure with high angle α grain boundaries. The specimen austenitized, quenched and tempered shows much larger superplastic elongation in the tensile tests at 973K than the as warm rolled specimens. This structure also exhibits the superior strength-ductility balance at room temperature. In the nucleation of intragranular ferrite idiomorphs on the incoherent MnS+V(C, N) complex precipitates in austenite, there is no specific orientation relationship between the ferrite and its austenite matrix indicating that the ferrite transformation texture could be randomized.

  23. Investigation of microscopic mechanisms of diffusional phase transformations

    KOIWA Masahiro, NAKAJIMA Hideo, MATSUBARA Eiichiro, OSAMURA Kozo, ISHIDA Kiyohito, OKI Kensuke

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Priority Areas

    Category: Grant-in-Aid for Scientific Research on Priority Areas

    Institution: Kyoto University

    1997 - 1999

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    This group carried out research on diffusional phase transformations to establish practical basis for microstructure-control of materials, aiming particularly at the two aspects : -the microscopic processes of order-disorder transformation and phase separation in alloys -atomic diffusion and atomic structure of heterophase boundaries, both of which control the mobility of the boundaries between the parent phase and the transformation products. The results of the research can be summarized as follows. (1) Atomic diffusion in nickel-based intermetallic compounds of the L1_2 structure (Ni_3Al, Ni_3Ga and Ni_3Ge) has been investigated experimentally, in parallel with theoretical analyses of the thermodynamics of point-defects. The vacancy mechanism in the α-sublattice has shown to be the dominant mechanism of diffusion in this class of materials. The diffusion coefficients of constituents in some metallic glasses and quasicrystals have also been determined precisely. (2) Application of stress or magnetic field on ordering has been shown to be very effective in producing strong variations in domain structures in FePd. The origin of the phenomenon has been explained theoretically. (3) The short-range order in Ni-Mo and Cu-Pt alloys have been investigated by high-resolution transmission electron microscopy and some other techniques. A systematic account of the microscopic structure and the ordering processes has been given. (4) The initial stage of the phase transformation in some aluminium-based alloys has been studied by small-angle scattering experiments and computer simulation. On the basis of the guiding principle for the design of precipitation-hardened alloys established, a new aluminium alloy has been designed and prepared, which exhibits tensile strength above 900 MPa. (5) The atomic structure (arrangement) in metallic glasses has been studied by the X-ray anomalous scattering technique. The origin of the thermal stability of those materials have been clarified. (6) The atomic structure and the variations in composition of heterophase interfaces have been investigated by direct observations and concentration profile measurements to establish the basis for discussing the stability of those interfaces. (7) By studying the atomic structure of the interfaces between inhomogeneously-nucleated precipitates and the parent phase in steels and their crystallographic relationships, the method of microstructure control for high-strength, high-toughness steels has been estabilished.

  24. 薄膜形状記憶材料としての鉄系合金の可能性

    古原 忠

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 京都大学

    1997 - 1998

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    非鉄合金の熱弾性型マルテンサイト変態や鉄系形状記憶合金の一つであるFe-Mn-Si合金のオーステナイト(γ,FCC)-ε(HCP)マルテンサイト変態では、薄膜材とバルク材において生成するマルテンサイトの形態や結晶学等の変態挙動はほとんど同じであるとされている。一方、鉄系合金での形状記憶効果を示すもう一つのマルテンサイトである薄板状α'(BCC or BCT)マルテンサイトについては薄膜試料からの変態挙動に関する研究はない。本研究は鉄系形状記憶合金であるFe-Ni-Co-Ti合金の薄板状α'マルテンサイトについて、試料膜厚を変化させたときマルテンサイトの形態、内部組織及び結晶方位関係の変化を明らかにすることを目的として行った。 供試材としてMs点が83KであるFe-31Ni-10Co-3Ti(mass%)合金を用いた。試料を1473Kでそれぞれy化した後,厚さ5mm,0.5mm,30μm,l00nm-1(透過型電子顕微鏡用試料)の試料を作製した。これらの試料に液体窒素温度で深冷処理を行いマルテンサイトを得た。マルテンサイトの形態および生成挙動は昨年度購入した光学顕微鏡用加熱冷却ホルダを使用し観察を行った。また、内部組織観察、結晶方位関係の解析には透過型電子顕微鏡を使用した。以下に今年度の研究成果を示す. 5mm及び0.5mm厚の試料では従来の報告通り{112}α'双晶がマルテンサイト内を貫通した薄板状の形態であった。このマルテンサイトのオーステナイトに対する結晶方位関係はほぼN関係であり,現象的理論による計算結果とも良く一致していた。30μmの試料では薄板状のマルテンサイトに加えて,従来報告のない曲面を持った形態を見いだした。一方100nm厚のTEM薄膜では、試片周縁部ではマルテンサイト変態が起こらない領域が存在し,マルテンサイトの界面は直線的ではなく複雑に曲がった形態を示していた。このマルテンサイトの内部組織を観察したところ、5mm厚のバルク材及び0.5mm厚の試料の場合と同様に{112}α'双晶が観察されたが、双晶比はバルクと異なりばらついていた。またマルテンサイトとオーステナイトの結晶方位関係は,5mm厚のバルク材及び0.5mm厚の試料の場合と異なりN関係からのばらつきが大きいものであった。

  25. Control of Transformation Microstructure in Steel by use of Inclusions

    MAKI Tadashi, YAMADA Toshiro, FURUHARA Tadashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: KYOTO UNIVERSITY

    1996 - 1998

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    Proeutectoid ferrite (bcc α) nucleation on the Bl (NaCl)-type complex inclusions/precipitates (e.g. oxide, sulfide, carbide, nitride) dispersed in austenite (fcc γ), denoted as intragranular ferrite transformation, has been used to refine the microstructure in the heat affected zone to improve the toughness of low and medium carbon steels. The present study aims to study the ability of various complex inclusions/precipitates (MnS, MnS+VC, MnS+V(C,N)) in austenite as nucleation sites in proeutectoid ferrite transformations by electron microscopy. In the presence of MnS+V(C,N) complex precipitates, intragranular ferrite nucleation is markedly accelerated. V(C,N), which usually holds a cube-cube orientation relationship (<001>ィイD2γィエD2//<001>ィイD2vcィエD2) when they forms within austenite grains, does not exhibit any specific orientation relationship with respect to austenite matrix when they nucleate on incoherent MnS. Many of intragranular ferrite crystals apparently do not hold a specific orientation relationship with V(C,N) and austenite. These crystallographic analyses revealed that the randomization in the matrix/precipitate orientation relationships occurs in the precipitation at incoherent interphase boundaries.

  26. Research on Phase Transformations and Microstructure Control with Emphasis of Grain Boundary Character of the Matrix

    TSUZAKI Kaneaki, FURUHARA Tadashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: KYOTO UNIVERSITY

    1995 - 1996

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    The following two experimental studies have been carried out to examine the effects of grain boundary character of the matrix on phase transformations. [1] Effect of grain boundary plane on the variant selection of grain boundary precipitates. Variant selection of BCC precipitates forming on grain boundaries was investigated in a Ni-43%Cr alloy. When the grain boundary planes of the FCC matrix is near {111} wthin 20 degrees, the variants of the precipites are highy limitted and the dominant variant is observed. On the other hand the grain boundary planes are far from {111} over 30 degrees, the dominant variant is not observed. These results can be explained from the viewpoint of activation energy for nucleation of the variants forming on the grain boundaries. [2] Character of grain boundaries acted as martensitic nucleation site in an Fe-Ni-Mn alloy. Character of grain boundaries acted as martensitic nucleation site was investigated in the initial stage of transformation where the volume fraction of martensite less than 0.01. The number of the grain boundaries with martensite was fifiteen and much fewer compared with the total baoundaries, 2504. This indicates that the grain boundaries as high potent nucleation sites is highly limited. It was found by ECP analysis that most of the grain boundaries acted as nucleation sites were low-angle boundaries with the misorientation angle near 12 degrees and the boundary planes of those were near {110}.

  27. β型チタン合金における相分離を利用したα相析出組織の微細化

    古原 忠

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 京都大学

    1995 - 1995

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    高温でβ相の2相分離が起こり偏析型の平衡状態図を持つことが予想されるTi-Mo二元系を選び,5種類のMo組成(Ti-10,20,30,40,50mass%Mo)の合金をアーク溶解によって作製した.これらの合金に広い温度範囲(1023K〜773K)で等温時効を施し,透過型電顕観察によりβ相の2相分離およびα相析出挙動を調べた.得られた結果は以下の通りである. (1)提唱されているTi-Mo二元状態図における偏析温度(968K)以下での等温時効を施した場合,Ti-10〜30Mo合金では,β母相の粒界,亜粒界や転位からの不均一なα相析出が起こった.Ti-40Mo合金においては,873K以上ではα相がβ母相中の格子欠陥より不均一に析出したのに対して,823K以下ではβ相の二相分離によって生成したβ′相をサイトとしてα相が析出し,均一微細なα相析出組織が得られた.Ti-50Mo合金では,長時間時効を行ってもβ相の2相分離やα相析出は観察されなかった.この結果はβ相の2相分離領域が提唱されている平衡状態図より低温側に位置することを示唆する. (2)Ti-10〜30Mo合金において析出したα相はラス状であり,β母相に対してBurgersの関係((1- 10)β//(0001)α,[111]B//[11- 20]α)を満たし,晶癖面は{11- 1}βに近いものであった.一方,Ti-40Mo合金におけるα相は,Potterの方位関係((0- 11)β//(-1101)α,[111]β//[11-20]α)を満たし,{0-31}βを晶癖面とする板状の形態を示した. (3)α相の界面構造を高分解能透過型電顕を用いて観察した結果,α/β界面はすべて半整合であったが,Ti-10Moにおけるラス状α相の界面は,bcc→hcp変態にともなう体積歪を緩和するsessileなミスフィット転位および剪断歪を緩和するglissileな格子転位を含んでいた.一方、Ti-40Moにおける板状α相の界面では,変態歪を緩和する転位の配列は不均一であり,ミスフィット転位も観察されなかった.

  28. Interphase Boundary Structure and Transformation Mechanism of Phase Transformations in Solids

    MAKI Tadashi, FURUHARA Tadashi, TSUZAKI Kaneaki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for General Scientific Research (B)

    Category: Grant-in-Aid for General Scientific Research (B)

    Institution: KYOTO UNIVERSITY

    1994 - 1995

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    The atomic structure of the interphase boundaries enclosing the products of diffusional transformations (precipitation) and martensitic transformations was examined by means of conventional and high-resolution transmission electron microscopy. The interphase boundaries enclosing the precipitates plate and the martensite plate are both semi-coherent. Thus, in each type of phase transformations, an atomic site correspondence is maintained. In diffusional transformations (precipitation) , the nucleation and migration of growth ledges, which are controlled by diffusion of substitutional solute atoms, result in the vitual displacement of transformation dislocations. It also accompanies the climb of sessile misfit dislocations and the glide of glissile accommodation dislocations simultaneously. Thus, the migration of the precipitate/matrix boundary is a non-conservative process. On the other hand, theinterphase boundary between the martensite and the matrix is fully glissile and, thus, can move conservatively.

  29. Research on Microstructure Control and Improvement of Steel Seets Produced by Continuous Strip Casting Process

    MAKI Tadashi, UEMATU Yoshihiro, FURUHARA Tasashi, TSUZAKI Kaneaki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Developmental Scientific Research (B)

    Category: Grant-in-Aid for Developmental Scientific Research (B)

    Institution: KYOTO UNIVERSITY

    1992 - 1994

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    The following experimental stuies have been carried out to examine the microstructre control of recrystallization structure of solidified columnar crystals in a 19%Cr ferritic stainless steel. [1] Effects of Rolling Reductiion and Annealing Temperature on Recrystallization Structure Reduction of cold-rolling was altered as 50%, 70%, and 90%, whereas subsequent annealing temperature was chainged from 700 to 1000゚C.Mirostructural observations and X-ray pole figure measurements were performed on specimens with different rolling and annealing conditions. The results showed that a favorable recrystallization structure with fine and uniformgrain size cannot be obtained simply by increasing rolling reduction or by increasing annealing temperature. [2] Improvement of Recrystallization Structure by the Repetition of Rolling and Annealing The orientations of recrystallized grains in a (001)[110]initially-oriented columnar crystal are random although such an oriented columanr crystal exhibits a very low recrystallization rate and a coarse recrystallization structure. Taking into account the above fact, the repetition of cold-rolling and annealing was applied to a columnar crystal specimen in order to improve its recrystallization structure. The result showed that a fine and uniform recrystallization structure can be achieved by two cycles of the repetition of 70% cold rolling and 973K annealing.

  30. 拡散変態における格子のせん断変形の役割に関する研究

    古原 忠

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 京都大学

    1993 - 1993

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    当初研究計画に則って平成5年度に得られた研究結果を以下に示す。 大気中溶解によって作製したA1-15mass%Ag合金を、823Kで溶体化後623Kで種々の時間等温度時効を施し、fccalpha母相よりhcpgamma'相を析出させ、その組織観察を行った。gamma'相は庄司-西山の関係を満たして母相の(111)alpha面に平行な板状結晶として析出していた。またgamma'相の生成に伴い、試料表面には表面起伏が発現した。gamma'板の成長は、板面に生成したショックレー部分転位である成長レッジの移動によって起こる。成長レッジの原子構造を高分解能電顕により調べた結果、成長レッジのライザー界面は整合であることが明らかとなった。同様の界面構造の観察実験を、Ni-45mass%Cr合金のfcc母相から析出するbcc相についても行った結果、析出物はレッジ機構により成長し、成長界面はやはり整合であることが明らかとなった。成長界面の構造の原子モデルを観察結果に基づいて構築した結果、成長レッジのライザーはマルテンサイト変態のようなせん断変態での格子変化を司る変態転位として記述できるステップを含んでおり、成長レッジの移動により変態転位がすべり運動をしたのと同じ原子の動きによって格子変化を起こすことが見出された。このことは、成長界面での母相から生成相への原子の移動が格子位置の対応を伴って起こることを意味しており、表面起伏が発現する原因であると考えられる。 一方、A1-15mass%Ag合金の単結晶材を作製し、溶体化後弾性限内での応力(19MPa)を負荷した状態で623Kで時効処理を行った場合には、gamma'相のバリアントに特定の配向は見られなかった。これは、本合金の時効温度での弾性限が低いために、弾性応力による機械的駆動力が析出の化学的駆動力の十分の一以下と非常に小さかったためであると考えられる。

  31. Study on the mechanism of bainitic transformation in steels.

    MAKI Tadashi, FURUHARA Tadashi, TSUZAKI Kaneaki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for General Scientific Research (B)

    Category: Grant-in-Aid for General Scientific Research (B)

    Institution: Kyoto University

    1990 - 1991

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    The measurement of transformation kinetics and microstructural observation of bainite have been performed using Fe-9%Ni-C and Fe-2%Si-I%Mn-C alloys in order to clarify the formation mechanism of the ferrite component of bainite in steels. The main findings are as follows. (1) In all of three Fe-9%Ni-C alloys with different carbon contents from 0.1% to 0.3%, the TTT diagram consisted of two C-curves ; a higher one corresponded to pro-eutectoid ferrite + pearlite and a lower one corresponded to bainite. This clearly indicates that the bainite reaction has its own C -curve even in the alloys without strong carbide formers. Moereover, it was confirmed that the Bs temperature was almost independent on the carbon content and corresponded to the Ms temperature of the Fe-9%Ni binary alloy. (2) In the 2%Si-I%Mn-0.34%C hypoeutectoid steel, carbide-free bainitic ferrite formed predominantly at 823K, even though the amount of proeutectoid ferrite decreased with decreasing the decomposition temperature and the structure became fully pearlitic at 873K. Moreover, in the 2%Si-I%Mn0.59%C eutectoid steel, carbide-free bainitic ferrite formed at temperatures from 823K to 723K, whereas the structure was fully pearlitic at higher temperatures between 973K and 873K. These results indicate that the formation mechanism of bainitic ferrite is different from that of the proeutectoid ferrite. (3) TEM observation of bainite formed from work-hardened austenite in the Fe-2%Si-I%Mn-0.59%C alloy showed that the bainitic ferrite inherited the dislocation cell structure from the work-hardened austenite. On the other hand, dislocations were scarcely observed in pealite formed from the work-hardened austenite. It was concluded from the above results that the bainitic ferrite forms by the displacive mechanism rather than the diffusional one.

  32. 粒界上析出物の結晶学的方位関係および異相界面構造の研究

    古原 忠

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 奨励研究(A)

    Category: 奨励研究(A)

    Institution: 京都大学

    1990 - 1990

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Social Activities 5

  1. 日本鉄鋼協会 析出制御専科

    2008/10/20 - 2008/10/21

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    鉄鋼材料の強化に重要な役割を果たす炭化物や窒化物などの析出現象について、熱力学、速度論、結晶学等の基礎的な講義を行うとともに、構造用鋼を主として鉄鋼中の種々の析出組織の制御について特性と関連付けながら解説する。

  2. (社)日本鉄鋼協会 鉄鋼工学セミナー

    2005/07/23 - 2005/07/29

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    材料・圧延グループリーダー,講師

  3. 日本鉄鋼協会 第197回西山記念技術講座

    2008/09/30 -

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    鉄鋼材料の微細組織と特性の制御では、実際の製造プロセスと対応して様々な合金元素が利用されている。しかしながら、社会基盤材料としての鉄鋼材料の未来を考えた場合には、省資源、低環境負荷、合金元素の戦略的な利用等の観点に基づいた材料の設計開発が今後ますます必要である。本講座では、鉄鋼の主要組織と特性への合金元素の影響を概説するとともに、最近の鉄鋼材料開発における合金元素の役割についても述べる。

  4. 日本鉄鋼協会 第196回西山記念技術講座

    2008/09/19 -

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    鉄鋼材料の微細組織と特性の制御では、実際の製造プロセスと対応して様々な合金元素が利用されている。しかしながら、社会基盤材料としての鉄鋼材料の未来を考えた場合には、省資源、低環境負荷、合金元素の戦略的な利用等の観点に基づいた材料の設計開発が今後ますます必要である。本講座では、鉄鋼の主要組織と特性への合金元素の影響を概説するとともに、最近の鉄鋼材料開発における合金元素の役割についても述べる。

  5. 冷間鍛造技術者育成研修

    2008/06/26 -

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    鍛造用材料として重要な鉄鋼材料の組織と特性および鍛造用鋼の特徴について紹介する.

Media Coverage 4

  1. 新しい鉄をデザイン

    ニュートン別冊「マテリアル革命」

    2015/11

    Type: Newspaper, magazine

  2. 元素戦略/希少金属代替材料開発第9回合同シンポジウム

    ニュートン

    2015/05/07

    Type: Newspaper, magazine

  3. アルミより軽い鉄など新素材開発

    仙台経済界臨時増刊号「仙台のプロジェクト100」

    2013/06/01

    Type: Newspaper, magazine

  4. 東北大学の新世紀 「21世紀の鉄鋼材料」

    東日本放送

    2009/01/19

    Type: TV or radio program