Details of the Researcher

PHOTO

Yongjie Zhang
Section
Institute for Materials Research
Job title
Associate Professor
Degree

  • 博士（工学）（東北大学）

  • 修士（工学）（東北大学）

Research History 3

  • 2025/03 - Present
    Tohoku University　Institute for Materials Research　Associate Professor

  • 2016/10 - 2025/02
    Tohoku University　Institute for Materials Research　Assistant Professor

  • 2014/04 - 2017/03
    Department of Metallurgy, Tohoku University　JSPS Research Fellow (DC1)

Education 3

  • Tohoku University　Graduate School, Division of Engineering

    - 2016/09/30

  • Tohoku University　Graduate School, Division of Engineering

    - 2013/09/30

  • Shanghai Jiao Tong University

    - 2011/06/30

Professional Memberships 3

  • THE JAPAN INSTITUTE OF METALS AND MATERIALS

  • The Japan Society for Heat Treatment

  • The Iron and Steel Institute of Japan

Research Interests 5

  • Atom Probe

  • Grain Boundary Segregation

  • Precipitation

  • Steels

  • Phase Transformation

Research Areas 1

  • Nanotechnology/Materials / Material fabrication and microstructure control /

Awards 9

  1. Tokin Foundation Award

    2023/03　Tokin Science and Technology Foundation　Strengthening of Low Carbon Steels by Interphase Precipitation of Nano-Sized Alloy Carbide

  2. Young Researcher Award

    2022/03　The Iron and Steel Institute of Japan　Control of Nano-Precipitation in Steels via Application of Atom Probe Analysis

  3. Certificate of Excellence in Reviewing

    2021/03　Acta Materialia, Inc.

  4. The Japan Institute of Metals and Materials Metallography Award (Fine Work Prize)

    2021/03　The Japan Institute of Metals and Materials　3DAP Observation of Coupled Segregation and Precipitation at Interphase Boundary in a Nb-added Steel

  5. Young Researcher Award

    2020/09　The Japan Institute of Metals and Materials　Research on the Nano-Precipitation of Alloy Carbide and Resultant Strengthening in Microalloyed Steels

  6. Kuchie Photo Award

    2018/05　The Japan Society for Heat Treatment　Study on Relationship between Crystallographic Feature / Nano-Precipitation Structure / Local Mechanical Property of Ferrite and Interphase Precipitation

  7. Poster Presentation Award

    2014/03　The Grants for Excellent Gradate School "Materials Integration Center" and "Materials Science Center", MEXT　Effects of α/γ Orientation Relationship on VC Interphase Precipitation in Low Carbon Steels

  8. Poster Presentation Award

    2014/01　The Japan Institute for Metals and Materials - Tohoku Branch　Effects of α/γ Orientation Relationship on VC Interphase Precipitation in Low Carbon Steels

  9. Best Presentation Award

    2013/11　The Japan Society for Heat Treatment　Effects of α/γ Orientation Relationship on VC Interphase Precipitation in Low Carbon Steels

Show all ︎Show 5

Papers 58

  1. A Novel Low-Cost Fibrous Tempered-Martensite/Ferrite Low-Alloy Dual-Phase Steel Exhibiting Balanced High Strength and Ductility International-coauthorship Peer-reviewed

    X.-G. Zhang, Y.-W. Pei, H.-R. Han, S.-L. Feng, Y.-J. Zhang

    Materials　18　(6)　1292(1)-1292(16)　2025/03

    Publisher: MDPI AG

    DOI： 10.3390/ma18061292 　

    eISSN： 1996-1944

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    Low-cost and low-alloy dual-phase (DP) steel with a tensile strength (TS) above 1000 MPa and high ductility is in great demand in the automobile industry. An approach to using a medium-carbon and fibrous DP structure for developing such new DP steel has been proposed. The microstructure and mechanical performance of fibrous DP steel obtained via partial reversion from martensite in Fe-C-Mn-Si low-alloy steel have been investigated. The TS of the as-quenched DP steel is above 1300 MPa, while the total elongation is less than 6%. The total elongation was increased to above 13%, with an acceptable loss in TS by performing additional tempering. The fibrous tempered-martensite/ferrite DP steel exhibits an excellent balance of strength and ductility, surpassing the current low-alloy DP steels with the same strength grade. Plate-like or quasi-spherical fine carbides were precipitated, and the relatively high-density dislocations were maintained due to the delay of lath recovery by the enrichment of Mn and C in martensite (austenite before quenching), contributing to the tempering softening resistance. In addition, nanotwins and a very small amount of retained austenite were present due to the martensite chemistry. High-density dislocations, fine carbide precipitation, and partially twinned structures strengthened the tempered martensite while maintaining relatively high ductility. Quantitative strengthening models and calculations were not included in the present work, which is an interesting topic and will be studied in the future.

  2. On the Formation Mechanism of Hierarchical Inter- and Intragranular Precipitations in a Cast Cu-17Ni-3Al-Based Alloy International-coauthorship Peer-reviewed

    W.-W. Zhang, R. Zhong, Y.-J. Zhang, T. Furuhara, B.-N. Zhang, G. Liu, L.-H. Liu, H.-K. Dong

    Materials Characterization　221　114729(1)-114729(13)　2025/03

    Publisher: Elsevier BV

    DOI： 10.1016/j.matchar.2025.114729 　

    ISSN： 1044-5803

  3. Grain Boundary Nanochemistry and Intergranular Corrosion of Fe-0.01wt.%P Alloy: Roles of Elemental Segregations and Misorientation Peer-reviewed

    S. Ajito, K. Tojima, H. Kakinuma, K. Ikeda, Y.-J. Zhang, T. Hojo, G. Miyamoto, M. Koyama, T. Furuhara, E. Akiyama

    Acta Materialia　283　120577(1)-120577(10)　2025/01

    DOI： 10.1016/j.actamat.2024.120577 　

  4. Progress in Elemental Segregation and Solute Drag Effect at the Austenite/Ferrite Interface International-coauthorship Invited Peer-reviewed

    H.-K. Dong, Z.-B. Dai, Y.-J. Zhang, Z.-G. Yang, H. Chen

    SCIENTIA SINICA Technologica　54　(11)　2053-2070　2024/11

    Publisher: Science China Press., Co. Ltd.

    DOI： 10.1360/sst-2024-0048 　

    ISSN： 1674-7259

  5. Influence of Austenitizing Temperature on Acicular Ferrite Formation on Ti-Rare Earth Metal (REM)-Zr Oxide in Low Carbon Steel Peer-reviewed

    H. Nako, Y.-J. Zhang, G. Miyamoto, T. Furuhara

    Proceedings of the 7th International Symposium 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

  6. Enhancing Prior Austenite Grain Boundary Coherency by Introducing Partial Bainite in Martensitic Steel Peer-reviewed

    J.-H. Kim, G. Miyamoto, A. Shibata, T. Hojo, M. Koyama, Y.-J. Zhang, T. Furuhara

    Proceedings of the 7th International Symposium 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

  7. Possibility of Block Boundary Design for Further Strengthening in Martensitic Steels Invited Peer-reviewed

    T. Tsuchiyama, T. Masumura, Y.-J. Zhang

    Proceedings of the 7th International Symposium on Steel Science　2024　135-144　2024/11

    Publisher: Iron and Steel Institute of Japan

    DOI： 10.2355/isijisss.2024.0_135 　

    eISSN： 2759-6621

  8. In-Situ Characterization of Tempering Behaviors and Alloying Effects on Tempering Kinetics in High-Carbon Martensitic Steels Invited Peer-reviewed

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

    Proceedings of the 7th International Symposium 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

  9. Enhancing Ductility of the TRIP Aided Bainitic Ferrite Steel by Mn Heterogeneity Introduced via Reversion: Towards the 3rd Generation International-coauthorship Peer-reviewed

    J.-H. Yan, X.-G. Zhang, H. Liu, G. Miyamoto, Z.-M. Cao, Y.-J. Zhang, Y.-W. Pei, P. Shi, J.-J. Chen, T. Furuhara

    Scripta Materialia　252　116241(1)-116241(8)　2024/11

    DOI： 10.1016/j.scriptamat.2024.116241 　

    ISSN： 1359-6462

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

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

    Metallurgical and Materials Transactions A　55　3921-3936　2024/10

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11661-024-07518-1 　

    ISSN： 1073-5623

    eISSN： 1543-1940

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    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.

  11. Interphase Precipitation of Nano-sized Alloy Carbides in Low Carbon Microalloyed Steels Peer-reviewed

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

    Proceedings of the 9th Asia Steel International Conference　877-881　2024/09

  12. Influence of Austenite Grain Boundary Misorientation on Hydrogen-Induced Intergranular Crack Propagation in a Medium Carbon Martensitic Steel Peer-reviewed

    J.-H. Kim, G. Miyamoto, A. Shibata, T. Hojo, M. Koyama, Y.-J. Zhang, T. Furuhara

    Acta Materialia　274　120036(1)-120036(13)　2024/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.actamat.2024.120036 　

    ISSN： 1359-6454

  13. Grain Boundary Character Dependence of Phosphorus Segregation at Ferrite Grain Boundaries in a High-Purity Iron-Phosphorus Binary Alloy Peer-reviewed

    Y.-J. Zhang, K. Ikeda, S. Kitsuya, G. Miyamoto, T. Furuhara

    Scripta Materialia　249　116170(1)-116170(6)　2024/08

    DOI： 10.1016/j.scriptamat.2024.116170 　

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

    M. Watanabe, G. Miyamoto, Y.-J. Zhang, S. Morooka, S. Harjo, Y. Kobayashi, T. Furuhara

    ISIJ International　64　(9)　1464-1476　2024/07

    DOI： 10.2355/isijinternational.ISIJINT-2024-044 　

    ISSN： 0915-1559

  15. Quantitative Analysis of Microstructure Evolution, Stress Partitioning and Thermodynamics in the Dynamic Transformation of Fe-14Ni Alloy International-coauthorship Peer-reviewed

    L. Li, G. Miyamoto, Y.-J. Zhang, M.-Q. Li, S. Morooka, K. Oikawa, Y. Tomota, T. 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

  16. Reaching Unconventionally Large Hall-Petch Coefficients in Face-Centered Cubic High-Entropy Alloys International-coauthorship Peer-reviewed

    J.-X. Li, K. Yamanaka, Y.-J. Zhang, T. Furuhara, G.-Q. Cao, J.-H. Hu, A. Chiba

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

    Publisher: Informa UK Limited

    DOI： 10.1080/21663831.2024.2337211 　

    eISSN： 2166-3831

  17. Probing the Impact of Grain Size Distribution on the Deformation Behavior in Fine-Grained Austenitic Stainless Steel: A Critical Analysis of Unimodal Structure versus Bimodal Structure International-coauthorship Peer-reviewed

    S.-Y. Liu, X.-L. Wan, C.-Y. Hu, Y.-J. Zhang, R. Ke, J. Hu, X.-T. Deng, G.-Q. Li, K.-M. Wu

    Materials Science and Engineering: A　897　146343(1)-146343(11)　2024/04

    Publisher: Elsevier BV

    DOI： 10.1016/j.msea.2024.146343 　

    ISSN： 0921-5093

  18. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite Peer-reviewed

    Y.-J. Zhang, K. Marusawa, K. Kudo, S. Morooka, S. Harjo, G. Miyamoto, T. Furuhara

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

    Publisher: Iron and Steel Institute of Japan

    DOI： 10.2355/isijinternational.ISIJINT-2023-251 　

    ISSN： 0915-1559

    eISSN： 1347-5460

  19. Effects of Alloying Elements on Low-Temperature Tempering Behaviors of High Carbon Martensite Peer-reviewed

    K. Marusawa, K. Kudo, Y.-J. Zhang, S. Morooka, G. Miyamoto, T. Furuhara

    Proceedings of the 28th Congress of the International Federation for Heat Treatment and Surface Engineering, IFHTSE 2023　2023/11

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

    Y.-J. Zhang, S.-W. Young, K.P. Rice, M. Sato, G. Miyamoto, T. Furuhara, T. Ohkubo, K. Hono

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

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/micmic/ozac004 　

    ISSN： 1431-9276

    eISSN： 1435-8115

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    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.

  21. Sublattice Alloy Design of High-Strength Steels: Application of Clustering and Nanoscale Precipitation of Interstitial and Substitutional Solutes Peer-reviewed

    T. Furuhara, Y.-J. Zhang, M. Sato, G. Miyamoto, M. Enoki, H. Ohtani, T. Uesugi, H. Numakura

    Scripta Materialia　223　115063(1)-115063(8)　2023/01

    DOI： 10.1016/j.scriptamat.2022.115063 　

    ISSN： 1359-6462

  22. Heterogeneous Segregation Behavior of Nb at the Stepped Migrating Interface during Phase Transformation International-coauthorship Peer-reviewed

    H.-K. Dong, Y.-J. Zhang, G. Miyamoto, M. Inomoto, W.-W. Zhang, L.-H. Liu, H. Chen, T. Furuhara

    Scripta Materialia　222　115038(1)-115038(6)　2023/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.scriptamat.2022.115038 　

    ISSN： 1359-6462

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

    Y.-J. Zhang, M. Sato, G. Miyamoto, T. Furuhara

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

    Publisher: Iron and Steel Institute of Japan

    DOI： 10.2355/isijinternational.isijint-2022-156 　

    ISSN： 0915-1559

    eISSN： 1347-5460

  24. Interface in Solid-Solid Phase Transformation - Interplay of Kinetics and Crystallography Invited Peer-reviewed

    T. Furuhara, Y.-J. Zhang, M. Sato, G. Miyamoto

    Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2022　3-10　2022/07

  25. On the Role of Nb Interface Segregation in Ferrite Transformation of Low Carbon Steels Peer-reviewed

    H.-K. Dong, Y.-J. Zhang, G. Miyamoto, H. Chen, Z.-G. Yang, T. Furuhara

    Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2022　75-77　2022/07

  26. The Impact of Annealing Temperature on the Microstructure - Properties Relationship of Reversion-Induced Austenitic Stainless Steels International-coauthorship Peer-reviewed

    R. Ke, X.-L. Wan, Y.-J. Zhang, C.-Y. Hu, K.-M. Wu

    Materials Science and Engineering: A　843　143100(1)-143100(15)　2022/05

    Publisher: Elsevier BV

    DOI： 10.1016/j.msea.2022.143100 　

    ISSN： 0921-5093

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

    H. Nako, G. Miyamoto, Y.-J. Zhang, T. 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

  28. Enhanced Hardening by Multiple Microalloying in Low Carbon Ferritic Steels with Interphase Precipitation Peer-reviewed

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

    Scripta Materialia　212　114558(1)-114558(7)　2022/04

    Publisher: Elsevier BV

    DOI： 10.1016/j.scriptamat.2022.114558 　

    ISSN： 1359-6462

  29. Metalloid Substitution Elevates Simultaneously the Strength and Ductility of Face-Centered-Cubic High-Entropy Alloys International-coauthorship Peer-reviewed

    D.-X. Wei, L.-Q. Wang, Y.-J. Zhang, W. Gong, T. Tsuru, I. Lobzenko, J. Jiang, S. Harjo, T. Kawasaki, J.-W. Bae, W.-J. Lu, Z. Lu, Y. Hayasaka, T. Kiguchi, N.L. Okamoto, T. Ichitsubo, H.-S. Kim, T. Furuhara, E. Ma, H. Kato

    Acta Materialia　225　117571(1)-117571(16)　2022/02

    Publisher: Elsevier BV

    DOI： 10.1016/j.actamat.2021.117571 　

    ISSN： 1359-6454

  30. Insight in the Impact of Pre-Deformation on Structure - Deformation - Property Relationship in Cr-Mn-N Stainless Steel International-coauthorship Peer-reviewed

    R. Ke, X.-L. Wan, Y.-J. Zhang, C.-Y. Hu, K.-M. Wu

    Materials Characterization　184　111689(1)-111689(13)　2022/02

    Publisher: Elsevier BV

    DOI： 10.1016/j.matchar.2021.111689 　

    ISSN： 1044-5803

  31. Revealing the Influence of Mo Addition on Interphase Precipitation in Ti-Bearing Low Carbon Steels International-coauthorship Peer-reviewed

    H.-K. Dong, H. Chen, A. Riyahi khorasgani, B.-N. Zhang, Y.-J. Zhang, Z.-Q. Wang, X.-S. Zhou, W. Wang, H.-R. Wang, T. Li, Z.-G. Yang, S. van der Zwaag

    Acta Materialia　223　117475(1)-117475(15)　2022/01

    Publisher: Elsevier BV

    DOI： 10.1016/j.actamat.2021.117475 　

    ISSN： 1359-6454

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

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

    JOM　73　(11)　3214-3227　2021/11

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11837-021-04882-w 　

    ISSN： 1047-4838

    eISSN： 1543-1851

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    <title>Abstract</title>The current understanding of the microstructural features and mechanical properties of micro-alloyed low carbon steels strengthened by interphase precipitation of nano-sized alloy carbides are critically reviewed in this paper. The experimental results obtained via advanced quantitative characterization have revealed that interphase precipitation is promoted at the ferrite/austenite interface with a relatively lower degree of coherency caused by the deviation from the exact Kurdjumov–Sachs orientation relationship. Its dispersion becomes refined by enlarging the driving force for its precipitation, as adjusted by changing the transformation condition and chemical composition. The occurrence of interphase precipitation can significantly increase the strength of steels due to its large precipitation strengthening, and maintain good ductility as a result of enhanced work-hardening and dynamic recovery in different stages of tensile deformation. Finally, the application of interphase precipitation to ferrite/martensite dual-phase steels, together with our outlook on the challenging points in future research, are briefly explained.

  33. Unraveling the Effects of Nb Interface Segregation on Ferrite Transformation Kinetics in Low Carbon Steels International-coauthorship Peer-reviewed

    H.-K. Dong, Y.-J. Zhang, G. Miyamoto, M. Inomoto, H. Chen, Z.-G. Yang, T. Furuhara

    Acta Materialia　215　117081(1)-117081(15)　2021/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.actamat.2021.117081 　

    ISSN： 1359-6454

  34. The Synergistic Effect of Grain Boundary and Grain Orientation on Micro-Mechanical Properties of Austenitic Stainless Steel International-coauthorship Peer-reviewed

    C.-Y. Hu, X.-L. Wan, Y.-J. Zhang, X.-T. Deng, Z.-D. Wang, R.D.K. Misra

    Journal of the Mechanical Behavior of Biomedical Materials　118　104473(1)-104473(9)　2021/06

    DOI： 10.1016/j.jmbbm.2021.104473 　

  35. Formation of Abnormal Nodular Ferrite with Interphase Precipitation in a Vanadium Microalloyed Low Carbon Steel International-coauthorship Peer-reviewed

    Z.-Q. Wang, Y.-J. Zhang, G. Miyamoto, T. Furuhara

    Scripta Materialia　198　113823(1)-113823(5)　2021/06

    DOI： 10.1016/j.scriptamat.2021.113823 　

    ISSN： 1359-6462

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

    Y.-J. Zhang, C. Zhao, M. Sato, G. Miyamoto, T. Furuhara

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

    DOI： 10.2355/isijinternational.ISIJINT-2020-412 　

    ISSN： 0915-1559

  37. Role of Cementite and Retained Austenite on Austenite Reversion from Martensite and Bainite in Fe-2Mn-1.5Si-0.3C Alloy International-coauthorship Peer-reviewed

    X.-G. Zhang, G. Miyamoto, Y. Toji, Y.-J. Zhang, T. Furuhara

    Acta Materialia　209　116772(1)-116772(15)　2021/05

    DOI： 10.1016/j.actamat.2021.116772 　

    ISSN： 1359-6454

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

    S.-W. Young, M. Sato, K. Yamamitsu, Y. Shimada, Y.-J. Zhang, G. Miyamoto, T. Furuhara

    Acta Materialia　206　116612(1)-116612(14)　2021/03

    DOI： 10.1016/j.actamat.2020.116612 　

    ISSN： 1359-6454

    eISSN： 1873-2453

  39. Crystal Orientation Relationships among Acicular Ferrite, Oxide and the Austenite Matrix in a Steel Weld Metal Peer-reviewed

    H. Nako, Y.-J. Zhang, G. Miyamoto, T. Furuhara

    Materials Science Forum　1016　1014-1018　2021/01

    Publisher: Trans Tech Publications, Ltd.

    DOI： 10.4028/www.scientific.net/msf.1016.1014 　

    eISSN： 1662-9752

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    Acicular ferrite (AFα) formed on oxide particles in steel weld metals has a positive effect on toughness at low temperature. Good lattice coherency between AFα and oxide is one of the proposed reasons for promotion of AFα formation. Lattice coherency is affected by crystal structure of oxide and crystal orientation relationship (OR) between oxide and AFα. In the present study, ORs among AFα, oxide and γFe are investigated in a low carbon steel weld metal. Cube-cube (C-C) OR is observed between γFe and the oxide. It is probable that the oxide liquefied at high temperature, and then crystalized having the C-C OR with the surrounding γFe during cooling in welding process. Near Kurdjumov-Sachs (K-S) and near Baker-Nutting (B-N) ORs are observed between γFe/AFα and oxide/AFα, respectively. The misorientation from the B-N OR is larger than that from the K-S OR just after nucleation of AFα. This implies that AFα forms satisfying a near K-S OR with γFe essentially. It is supposed that formation of both the C-C (γFe/oxide) and near K-S (AFα/γ) ORs results in apparent formation of the near B-N OR between oxide and AFα.

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

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

    Metallurgical and Materials Transaction A　51　(12)　6149-6158　2020/09

    DOI： 10.1007/s11661-020-06001-x 　

    ISSN： 1073-5623

  41. Natural-Mixing Guided Design of Refractory High-Entropy Alloys with As-Cast Tensile Ductility International-coauthorship Peer-reviewed

    S.-L. Wei, S.J. Kim, J.-Y. Kang, Y. Zhang, Y.-J. Zhang, T. Furuhara, E.S. Park, C.C. Tasan

    Nature Materials　19　1175-1181　2020/08

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41563-020-0750-4 　

    ISSN： 1476-1122

    eISSN： 1476-4660

  42. A Comparative Study on Intrinsic Mobility of Incoherent and Semicoherent Interfaces during the Austenite to Ferrite Transformation International-coauthorship Peer-reviewed

    H.-K. Dong, Y.-J. Zhang, G. Miyamoto, H. Chen, Z.-G. Yang, T. Furuhara

    Scripta Materialia　188　59-63　2020/07

    Publisher: Elsevier BV

    DOI： 10.1016/j.scriptamat.2020.07.007 　

    ISSN： 1359-6462

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

    Y.-J. Zhang, C. Zhao, M. Sato, G. Miyamoto, T. Furuhara

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

    Publisher: Iron and Steel Institute of Japan

    DOI： 10.2355/tetsutohagane.tetsu-2019-113 　

    ISSN： 0021-1575

    eISSN： 1883-2954

  44. 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

  45. Roles of Transformation Interfaces in the Design of Advanced High Strength Steels Invited

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

    IOP Conference Series: Materials Science and Engineering　580　(1)　012005(1)-012005(11)　2019/12

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

    ISSN： 1757-8981

    eISSN： 1757-899X

  46. Investigation of characteristic and evolution of fine-grained bainitic microstructure in the coarse-grained heat-affected zone of super-high strength steel for offshore structure International-coauthorship Peer-reviewed

    Gan, X., Wan, X., Zhang, Y., Wang, H., Li, G., Xu, G., Wu, K.

    Materials Characterization　157　109893(1)-109893(14)　2019/11

    DOI： 10.1016/j.matchar.2019.109893 　

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

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

    Microscopy and Microanalysis　25　(2)　447-453　2019/04

    DOI： 10.1017/S1431927618015374 　

    ISSN： 1431-9276

    eISSN： 1435-8115

  48. The significant impact of cold deformation on structure-property relationship in phase reversion-induced stainless steels International-coauthorship Peer-reviewed

    Xu, D.M., Li, G.Q., Wan, X.L., Misra, R.D.K., Yu, J.X., Zhang, Y.J., Xu, G.

    Materials Characterization　145　157-171　2018/11

    DOI： 10.1016/j.matchar.2018.08.056 　

  49. Analysis of the Interaction Between Moving α/γ Interfaces and Interphase Precipitated Carbides during Cyclic Phase Transformations in a Nb-Containing Fe-C-Mn Alloy International-coauthorship Peer-reviewed

    H.-K. Dong, H. Chen, W. Wang, Y.-J. Zhang, G. Miyamoto, T. Furuhara, C. Zhang, Z.-G. Yang, S. van der Zwaag

    Acta Materialia　158　167-179　2018/10

    DOI： 10.1016/j.actamat.2018.07.052 　

    ISSN： 1359-6454

    eISSN： 1873-2453

  50. 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

  51. 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

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

    ISIJ International　58　(3)　542-550　2018/03

    DOI： 10.2355/isijinternational.ISIJINT-2017-537 　

    ISSN： 0915-1559

    eISSN： 1347-5460

  52. Quantitative Measurements of Phase Equilibria at Migrating α/γ 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

  53. Comparative Study on Nano-Sized VC Precipitates by Interphase Precipitation and Tempering of Martensite in Low Carbon Steel Peer-reviewed

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

    Proceedings of 9th Pacific Rim International Conference on Advanced Materials and Processing　5-7　2016/08

  54. Precipitation Strengthening by VC/NbC/TiC Interphase Precipitation in Low-Carbon Steels

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

    Proceedings of Asia Steel International Conference-2015　344-345　2015/10

  55. 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

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

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

    Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015　191-192　2015/07

  57. 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

  58. Effects of α/γ 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

Show all ︎Show first 5

Misc. 5

  1. 3DAP Observation of Coupled Segregation and Precipitation at Interphase Boundary in a Nb-Added Steel

    Y.-J. Zhang, H.-K. Dong, G. Miyamoto, T. Furuhara

    Materia Japan　60　(5)　271-271　2021/05

  2. Erratum: Resistance to Temper Softening of Low Carbon Martensitic Steels by Microalloying of V, Nb and Ti (Tetsu-To-Hagane 106 (2020) 362-371. DOI: 10.2355/tetsutohagane.TETSU-2019-113)

    Y.-J. Zhang, C. Zhao, M. Sato, G. Miyamoto, T. Furuhara

    Tetsu-to-Hagane　107　(3)　268-268　2021/03

    DOI： 10.2355/tetsutohagane.TETSU-2019-113 　

  3. Current Status of Atom Probe Analysis of Steels Invited Peer-reviewed

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

    Ferrum　25　(11)　721-728　2020/11

    Publisher: 日本鉄鋼協会

    ISSN： 1341-688X

  4. Effects of Various Factors on Interphase Precipitation of Nano-Sized Alloy Carbides in Low-Carbon Steels Invited Peer-reviewed

    Y.-J. Zhang

    Materia Japan　59　(5)　260-264　2020/05

    DOI： 10.2320/materia.59.260 　

  5. Study on Relationship Between Crystallographic Feature / Nano-Precipitation Structure / Local Mechanical Property of Ferrite with Interphase Precipitation

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

    Journal of the Japan Society of Heat Treatment　57　(1)　1-2　2017/02

Presentations 64

  1. Quantitative Evaluation of Intrinsic Mobility of Interfaces with Various Characters During Ferrite and Pearlite Transformations in Fe-C Binary Alloys International-presentation

    Yongjie Zhang, Haokai Dong, Kanon Sato, Takemasa Umeda, Goro Miyamoto, Tadashi Furuhara

    The 9th International Conference on Solid-Solid Phase Transformations in Inorganic Materials　2025/07/11

  2. Quantitative Evaluation of Intrinsic Mobility of Interfaces with Various Characters During Ferrite and Pearlite Transformations in Fe-C Binary Alloys

    Yongjie Zhang, Haokai Dong, Kanon Sato, Takemasa Umeda, Goro Miyamoto, Tadashi Furuhara

    The 22th ALEMI Meeting　2025/07/06

  3. C Segregation Behaviors at Ferrite Grain Boundaries Based on Topological Analysis of Atomic Structure

    Yongjie Zhang, Bohao Zheng, Masanori Enoki, Masato Wakeda, Goro Miyamoto, Tadashi Furuhara

    The 189th ISIJ Spring Meeting　2025/03/10

  4. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite Invited

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

    The 189th ISIJ Spring Meeting　2025/03/10

  5. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite Invited

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

    2024 International Conference on the Cooperation and Integration of Industry, Education, Research and Application (Hubei)　2024/12/18

  6. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite International-presentation Invited

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

    The 7th International Symposium on Steel Science (ISSS 2024)　2024/11/13

  7. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite Invited

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

    The 9th Baosteel Biennial Academic Conference　2024/10/24

  8. Pearlite Growth Kinetics in Fe-C-Mn Eutectoid Steels: Quantitative Evaluation of Energy Dissipation at Pearlite Growth Front via Experimental Approaches International-presentation

    Yongjie Zhang, Takemasa Umeda, Satoshi Morooka, Stefanus Harjo, Goro Miyamoto, Tadashi Furuhara

    Materials Science & Technology 2024 (MS&T24)　2024/10/09

  9. Solute Segregation at Grain Boundaries in Ferrous Alloys: Approaches via Experiments and Simulations

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Forum for Young Researchers on Microstructure and Properties of Materials, ISIJ　2024/09/26

  10. Topological Analysis of Grain Boundary Open Space in Bcc Iron via Persistent Homology

    Yongjie Zhang, Bohao Zheng, Masanori Enoki, Masato Wakeda, Goro Miyamoto, Tadashi Furuhara

    The 188th ISIJ Autumn Meeting　2024/09/18

  11. Interphase Precipitation of Nano-sized Alloy Carbides in Low Carbon Microalloyed Steels International-presentation Invited

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Asia Steel 2024 (The 9th Asia Steel International Conference)　2024/09/04

  12. Topological Analysis of Grain Boundary Open Space in Bcc Iron via Persistent Homology International-presentation

    Yongjie Zhang, Bohao Zheng, Masanori Enoki, Masato Wakeda, Goro Miyamoto, Tadashi Furuhara

    The 17th International Conference on Intergranular and Interphase Boundaries in Materials (IIB 2024)　2024/07/09

  13. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite Invited

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

    The 174th JIM Spring Meeting　2024/03/14

  14. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite Invited

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

    Executive Committee of ISSS2024　2023/12/05

  15. Interphase Precipitation of Nano-Sized Vanadium Carbides in Low Carbon Microalloyed Steels Invited

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 2nd International Symposium on Materials Processing　2023/12/01

  16. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite International-presentation

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

    PRICM 11 (The 11th Pacific Rim International Conference on Advanced Materials and Processing)　2023/11/19

  17. Interphase Precipitation of Nano-Sized Vanadium Carbides in Low Carbon Microalloyed Steels International-presentation Invited

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 2nd International Symposium on Vanadium Steel (Vanadium Steel 2023)　2023/10/27

  18. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite Invited

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

    Forum for Young Researchers on Microstructure and Properties of Materials, ISIJ　2023/09/28

  19. Multi-Aspect Characterization of Low-Temperature Tempering Behaviors in High-Carbon Martensite

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

    The 186th ISIJ Autumn Meeting　2023/09/21

  20. Pearlite Growth Kinetics in Fe-C-Mn Alloys International-presentation

    Yongjie Zhang, Takemasa Umeda, Satoshi Morooka, Stefanus Harjo, Goro Miyamoto, Tadashi Furuhara

    The 20th ALEMI Meeting　2023/07/08

  21. Pearlite Growth Kinetics in Fe-C-Mn Alloys International-presentation Invited

    Yongjie Zhang, Takemasa Umeda, Satoshi Morooka, Stefanus Harjo, Goro Miyamoto, Tadashi Furuhara

    THERMEC 2023 (The 12th International Conference on Processing & Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications)　2023/07/07

  22. Pearlite growth kinetics in Fe-C-Mn eutectoid steels

    Yongjie Zhang, Takemasa Umeda, Satoshi Morooka, Goro Miyamoto, Tadashi Furuhara

    The 185th ISIJ Spring Meeting　2023/03/10

  23. Interaction Between Elements for Grain Boundary Segregation in Fe-P-C Ferritic Alloys

    Yongjie Zhang, Koichiro Yamasaki, Goro Miyamoto, Tadashi Furuhara

    The 184th ISIJ Autumn Meeting　2022/09/22

  24. Interphase Precipitation and Resultant Strengthening in V-Ti and V-Nb Multiple Microalloyed Low-Carbon Steels International-presentation Invited

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 6th International Conference on ThermoMechanical Processing　2022/09/06

  25. Interphase Precipitation of Nano-Sized Alloy Carbide in V-Nb and V-Ti Multiple Microalloyed Low-Carbon Steels International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 8th International Conference on Solid-Solid Phase Transformations in Inorganic Materials　2022/06/30

  26. Control of Nano-Precipitation in Steels Via Application of Atom Probe Analysis Invited

    Yongjie Zhang

    The 183th ISIJ Spring Meeting　2022/03/15

  27. Effects of Carbon and Molybdenum Additions on Grain Boundary Segregation of Phosphorus in Ferrite

    Yongjie Zhang, Kohei Ikeda, Koichiro Yamasaki, Goro Miyamoto, Tadashi Furuhara

    Virtual-Asia Steel 2021 (The 8th Asia Steel International Conference)　2021/12/06

  28. Resistance to Temper Softening in Low Carbon Martensitic Steels by Microalloying of V, Nb and Ti

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

    The 182th ISIJ Autumn Meeting　2021/09/17

  29. Effects of Ferrite/Austenite Orientation Relationship on VC Interphase Precipitation in Low Carbon Steels Invited

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 77th Annual Meeting of the Japanese Society of Microscopy　2021/06/14

  30. Effects of Carbon and Molybdenum Additions on Segregation of Phosphorus to Ferrite Grain Boundary Invited

    Yongjie Zhang, Kohei Ikeda, Goro Miyamoto, Tadashi Furuhara

    Virtual-THERMEC 2021 (The 11th International Conference on Processing & Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications)　2021/06/05

  31. Formation of Abnormal Nodular Ferrite with Interphase Precipitation in a Vanadium Microalloyed Low Carbon Steel

    Yongjie Zhang, Zhenqiang Wang, Goro Miyamoto, Tadashi Furuhara

    The 181th ISIJ Spring Meeting　2021/03/18

  32. Nano-Precipitation of Alloy Carbide and Resultant Strengthening in Low-Alloy Steels Invited

    Yongjie Zhang

    Forum for Young Researchers on High Temperature Processes, ISIJ　2021/01/13

  33. Comparison of Solute Clusters in Fe-Cr-N Tempered Martensite Observed by Atom Probe Instruments with Different Detection Efficiencies International-presentation

    Yongjie Zhang, Shaowen Young, Mitsutaka Sato, Goro Miyamoto, Tadashi Furuhara, Jun Uzuhashi, Tadakatsu Ohkubo, Kazuhiro Hono

    Virtual-Atom Probe Tomography & Microscopy 2020　2020/11/16

  34. Effects of C, Mo Addition on the Grain Boundary Segregation of P in Ferrite

    Yongjie Zhang, Kohei Ikeda, Goro Miyamoto, Tadashi Furuhara, Shigeki Kitsuya, Naoki Takayama, Satoshi Igi

    The 180th ISIJ Autumn Meeting　2020/09/17

  35. Nano-Precipitation of Alloy Carbide and Resultant Strengthening in Microalloyed Steels Invited

    Yongjie Zhang

    The 167th JIM Autumn Meeting　2020/09/16

  36. Effects of C, Mo Addition on the Grain Boundary Segregation of P in Ferrite

    Yongjie Zhang, Kohei Ikeda, Goro Miyamoto, Tadashi Furuhara, Shigeki Kitsuya, Naoki Takayama, Satoshi Igi

    The 179th ISIJ Spring Meeting　2020/03/17

  37. Nano-Precipitation of Alloy Carbide in Microalloyed Steels: Interphase Precipitation in Ferrite and Aging Precipitation in Tempered Martensite Invited

    Yongjie Zhang

    The 7th Chinese Young Researcher's Workshop on Materials Science　2019/11/23

  38. Alloying Effects on Low-Temperature Tempering Behaviors of High-Carbon Martensite

    Yongjie Zhang, Kohei Kudo, Goro Miyamoto, Tadashi Furuhara

    The 178th ISIJ Autumn Meeting　2019/09/12

  39. Origin of Resistance to Temper Softening in Low-Carbon Martensitic Steels by Microalloying of V, Nb and Ti International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    PRICM 10 (The 10th Pacific Rim International Conference on Advanced Materials and Processing)　2019/08/20

  40. Atom Probe Analysis of Nanocluster in Tempered Martensite

    Yongjie Zhang, Shaowen Young, Mitsutaka Sato, Goro Miyamoto, Tadashi Furuhara, Jun Uzuhashi, Tadakatsu Ohkubo, Kazuhiro Hono

    The 244th Seminar of 133rd Committee on Microstructures and Functions on Materials, JSPS　2019/07/10

  41. Alloying Effects on Tempering of Carbon Martensite

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Forum for Young Researchers on Microstructure and Properties of Materials, ISIJ　2019/07/09

  42. Weak Influence of Ferrite Growth Rate and Strong Influence of Driving Force on Dispersion of VC Interphase Precipitation in Low Carbon Steels International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 18th ALEMI Meeting　2019/06/14

  43. Alloying Effects on Tempering of Martensite

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 177th ISIJ Spring Meeting　2019/03/22

  44. Correlation between Dispersion of VC Interphase Precipitation and Local Hardness of Ferrite in Low Carbon Steels International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Summit of Materials Science-2018　2018/10/30

  45. Alloying Effects on Kinetics of Low-Temperature Tempering in High-Carbon Martensitic Steels

    Yongjie Zhang, Kohei Kudo, Goro Miyamoto, Tadashi Furuhara

    The 8th Workshop of Light Element Research Group, ISIJ　2018/09/22

  46. Strengthening of Low Carbon Steel by Nano-Sized Vanadium Carbide in Ferrite and Tempered Martensite

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 176th ISIJ Autumn Meeting　2018/09/21

  47. Resistance to Temper Softening of Low Carbon Steels by Microalloying of V, Nb and Ti Invited

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 2nd Workshop of Young Researcher Group No. 4, JIM　2018/09/18

  48. Strengthening of Low Carbon Steel by Nano-Sized Vanadium Carbide in Ferrite and Tempered Martensite

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 1st IMR Inter-laboratory Joint Seminar for Structure Materials　2018/09/11

  49. Resistance to Temper Softening of Microalloyed Low Carbon Steels

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Tohoku-Tsinghua Joint Workshops　2018/07/26

  50. Strengthening of Low Carbon Steel by Nano-Sized Vanadium Carbide in Ferrite and Tempered Martensite International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    THERMEC 2018 (The 10th International Conference on Processing & Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications)　2018/07/12

  51. Nucleation of Vanandium Carbide Interphase Precipitation with Different Ferrite Growth Rate in Low Carbon Steels International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 17th ALEMI Meeting　2018/07/05

  52. Correlation between Dispersion of VC Interphase Precipitation and Local Hardness of Ferrite in Low Carbon Steels International-presentation

    Yongjie Zhang, Goro Miyamoto, Takahito Ohmura, Tadashi Furuhara

    The 6th International Indentation Workshop　2018/07/03

  53. Atom Probe Compositional Analysis of Nano-Sized Alloy Carbide in Multiple Microalloyed Low-Carbon Steels International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Atom Probe Tomography & Microscopy 2018　2018/06/14

  54. Resistance to Temper Softening of Low Carbon Steels by Microalloying of V, Nb and Ti

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 175th ISIJ Spring Meeting　2018/03/21

  55. Resistance to Temper Softening of Microalloyed Low Carbon Steels International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Kick-off Symposium for World Leading Research Centers - Materials Science and Spintronics　2018/02/20

  56. Resistance to Temper Softening of Microalloyed Low Carbon Steels

    Yongjie Zhang, Chao Zhao, Goro Miyamoto, Kunio Shinbo, Tadashi Furuhara

    The 134th IMR Lecture Meeting　2017/11/29

  57. Resistance to Temper Softening of Microalloyed Low Carbon Steels International-presentation

    Yongjie Zhang, Chao Zhao, Goro Miyamoto, Kunio Shinbo, Tadashi Furuhara

    The 5th International Symposium on Steel Science (ISSS 2017)　2017/11/14

  58. Resistance to Temper Softening of Microalloyed Low Carbon Steels International-presentation

    Yongjie Zhang, Chao Zhao, Goro Miyamoto, Kunio Shinbo, Tadashi Furuhara

    NIMS Week 2017　2017/10/04

  59. Atom Probe Analysis on Composition of Interphase Precipitated Alloy Carbide in V-Ti and V-Nb Multiple-added Low Carbon Steels

    Yongjie Zhang, Kunio Shinbo, Goro Miyamoto, Tadashi Furuhara

    The 174th ISIJ Autumn Meeting　2017/09/06

  60. Dominating Factors on Dispersion of Interphase Precipitation in Low Carbon Steels

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    Forum for Young Researchers on Microstructure and Properties of Materials, ISIJ　2017/09/04

  61. Interphase Precipitation of Alloy Carbide in Low Carbon Steels

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 4th Workshop of Light Element Research Group, ISIJ　2017/07/20

  62. Compositional Analysis of Nano-sized Alloy Carbide in Multiple Microalloyed Low-Carbon Steels Invited

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 237th Workshop of 133rd Committee on Microstructures and Functions on Materials, JSPS　2017/07/13

  63. Dominating Factors on Dispersion of MC Interphase Precipitation in Low Carbon Steels International-presentation

    Yongjie Zhang, Goro Miyamoto, Tadashi Furuhara

    The 16th ALEMI Meeting　2017/06/26

  64. Dominating Factors on Dispersion of MC Interphase Precipitation in Low Carbon Steels

    Yongjie Zhang, Goro Miyamoto, Kunio Shinbo, Tadashi Furuhara

    The 173rd ISIJ Spring Meeting　2017/03/15

Show all Show first 5

Research Projects 11

  1. Effects of Carbide-Forming Elements on Tempering Behaviors of High-Carbon Martensite Competitive

    Yongjie Zhang

    Offer Organization: The Iron and Steel Institute of Japan

    System: ISIJ Research Promotion Grant

    2025/04 - 2027/03

  2. Mechanism Elucidation and Microstructural Control of Non-Equilibrium Growth Phenomenon During Reverse Transformation in Low Alloy Steels Competitive

    Yongjie Zhang

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2024/04 - 2027/03

  3. Solute Segregation Behaviors at Various Grain Boundaries in Steels: Approaches Via Experiments and Simulations Competitive

    Offer Organization: Iketani Science and Technology Foundation

    System: Single-Year Research Grant

    2025/04 - 2026/03

  4. Design of Interstitial Sublattice in Ferrous Alloys - New Functions from Diverse Periodic Structures

    Tadashi Furuhara, Mitsutaka Sato, Yongjie Zhang

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Research (Exploratory)

    Institution: Tohoku University

    2022/06 - 2024/03

  5. Control of Grain Boundary Segregation in Ferrite Using Interaction Between Solute Elements Competitive

    Yongjie Zhang

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Early-Career Scientists

    Institution: Tohoku University

    2021/04 - 2024/03

  6. Clustering and Nano-precipitaiton of Strong Carbide-forming Elements in BCC-iron Competitive

    Yongjie Zhang

    Offer Organization: The Iron and Steel Institute of Japan

    System: ISIJ Research Promotion Grant

    2019/04 - 2021/03

  7. Establishment of Novel Strengthening Principle of Steels by Spinodal Ordering of Light Elements Competitive

    Tadashi Furuhara, Hiroshi Ohtani, Goro Miyamoto, Mitsutaka Sato, Yongjie Zhang

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2017/04 - 2020/03

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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. Essential Understanding of Solute Segregation at Grain Boundary in Iron Alloys by Considering Boundary Coherency Competitive

    Yongjie Zhang

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2017/04 - 2020/03

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    The effects of C and Mo additions on equilibrium grain boundary segregation behaviors of P in ferritic model alloys were investigated by using three-dimensional atom probe. In annealed Fe-P binary alloy, the segregation amount of P at high-angle grain boundary was found to be higher than that at low-carbon grain boundary. Based on this, the grain boundaries in C-added alloy and Mo-added alloy with similar boundary characters were selected for analysis. Even with small amount of addition, C is severely segregated at grain boundary, which reduces the segregation amount of P. On the other hand, the segregation amount of P is not changed by the segregation of Mo. The effects of these alloying elements can be understood by considering the thermodynamics in terms of their interactions with P.

  9. Analysis of Nano-cluster in Tempered Martensite Competitive

    Yongjie Zhang

    Offer Organization: National Institute for Materials Science

    System: NIMS Cooperation Office Promotion Program

    2018/05 - 2019/03

  10. Atom Probe Compositional Analysis of Complex Alloy Carbide in Iron Competitive

    Yongjie Zhang

    Offer Organization: National Institute for Materials Science

    System: NIMS Cooperation Office Promotion Program

    2017/10 - 2018/03

  11. Strengthening of Low Carbon Steels by Interphase Precipitation of Nano-sized Alloy Carbide Competitive

    Yongjie Zhang

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for JSPS Fellows

    Institution: Tohoku University

    2014/04 - 2016/09

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