Details of the Researcher

PHOTO

Yuji Ichikawa
Section
Graduate School of Engineering
Job title
Associate Professor
Degree

  • Ph.D (Tohoku University)

Research History 3

  • 2018/10 - Present
    Tohoku University　Graduate School of Engineering Fracture and Reliability Research Institute　Associate professor

  • 2020/11 - 2024/03
    JST　Presto researcher

  • 2023/03 - 2023/03
    Cornell University

Committee Memberships 27

  • 日本機会学会 材料力学部門　幹事

    2023/04 - 2024/03

  • 日本溶射学会　理事

    2023/06 - Present

  • 日本溶射学会　将来構想WG委員会委員

    2021/06 - Present

  • 日本溶射学会　関東支部幹事

    2021/06 - Present

  • 日本材料学会　疲労部門委員会 幹事

    2021/04 - Present

  • 日本材料学会　東北支部 幹事

    2020/04 - Present

  • 日本溶射学会　国際交流委員

    2015/06 - Present

  • 日本溶射学会　研究企画委員

    2011/06 - Present

  • 日本溶射学会　表彰委員

    2017/06 - 2023/05

  • 日本溶射学会　オンライン会議WG委員会委員

    2021/06 - 2023/03

  • 34th International Conference on Surface Modification Technologies　Scientific committee member

    2020/01 - 2023/03

  • 日本機械学会　M&M 2022 材料力学カンファレンス実行委員

    2022/04 - 2022/09

  • 日本機械学会　材料力学部門広報委員会・委員長

    2021/04 - 2022/03

  • 日本溶射学会　第114回（2021年度秋季）全国講演大会 実行委員

    2021/04 - 2021/12

  • 日本機械学会　東北支部 第56期総会・講演会 実行委員

    2020/04 - 2021/03

  • 日本機械学会　材料力学部門広報委員会・副委員長

    2020/04 - 2021/03

  • The 10th Asian Thermal Spray Conference　International Scientific Committee Member

    2020/04 - 2020/11

  • 日本溶射学会　EBC研究分科会 委員

    2013/10 - 2020/03

  • 日本溶射学会　コールドスプレー研究分科会 幹事

    2013/10 - 2020/03

  • 日本溶射学会　広報委員

    2011/06 - 2020/03

  • 日本溶射学会　第110回全国講演大会実行委員

    2019/03 - 2019/11

  • 日本機械学会　M&M若手シンポジウム実行委員

    2018/11 - 2019/08

  • ITSC2019　現地実行委員

    2019/01 - 2019/06

  • ICMST-Sendai 2018　現地実行委員

    2017/07 - 2017/11

  • 日本溶射学会　若手の会 会長

    2015/06 - 2017/11

  • 日本溶射学会　第100回全国講演大会実行委員

    2014/08 - 2014/11

  • 日中高温シンポジウム　運営委員

    2007/04 - 2007/08

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Professional Memberships 4

  • ASM International

  • Japan Thermal Spraying Society

  • THE SOCIETY OF MATERIALS SCIENCE, JAPAN

  • Japan Society of Mechanical Engineers

Research Interests 5

  • 微小強度評価

  • 材料強度

  • 疲労

  • 溶射

  • コールドスプレー法

Research Areas 6

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Manufacturing and production engineering /

  • Nanotechnology/Materials / Thin-film surfaces and interfaces /

  • Nanotechnology/Materials / Composite materials and interfaces /

  • Nanotechnology/Materials / Nanomaterials /

  • Nanotechnology/Materials / Material fabrication and microstructure control /

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Machine materials and mechanics /

Awards 14

  1. 日本材料学会疲労部門委員会（令和 7 年度）論文賞

    2026/05　日本材料学会疲労部門委員会　Nanotwinning grain refinement induced by micro-needle peening in arc-welded ultra-high strength steel sheet

  2. 2023年度日本ファインセラミックス協会森村豊明奨励賞

    2024/05　一般社団法人日本ファインセラミックス協会

  3. 論文賞

    2023/06　一般社団法人日本溶射学会　プラズマ溶射耐環境コーティングのき裂自己治癒性に及ぼす SiC 添加量及び粒径の影響

  4. 日本材料学会疲労部門委員会奨励賞

    2023/05　公益社団法人日本材料学会疲労部門委員会　固相粒子積層技術を活用した表面改質技術の確立と疲労分野への応用に関する研究

  5. レビュー賞

    2022/06　一般社団法人日本溶射学会　固相粒子積層プロセスにおける接合メカニズムの統一的理解に向けた現状と課題

  6. 論文賞

    2019/06　一般社団法人日本溶射学会　低温プラズマ溶射法によるグラファイト上への銅成膜挙動に及ぼす基材表面粗さの影響

  7. 論文賞

    2017/06　一般社団法人日本溶射学会　Experimental and Numerical Analyses on the Deposition Behavior of Spherical Aluminum Particles in the Cold-Spray-Emulated High-Velocity Impact Process

  8. 論文賞

    2016/06　一般社団法人日本溶射学会　コールドスプレーを用いた生体用多孔質チタンコーティングの開発

  9. 論文賞

    2016/06　一般社団法人日本溶射学会　コールドスプレー模擬単粒子衝突試験装置の開発と 粒子付着挙動の評価

  10. 論文賞

    2014/06　一般社団法人日本溶射学会　EBSDを用いたコールドスプレー銅皮膜の微細組織評価

  11. ベストプレゼンテーション賞

    2013/06　一般社団法人日本溶射学会

  12. 日本溶射協会奨励賞

    2008/06/16　日本溶射協会

  13. 高温学会溶射部会・日本溶射協会合同講演会 奨励賞

    2007/11/20　高温学会溶射部会・日本溶射協会

  14. 東北大学大学院工学研究科長賞

    2007/03/26　東北大学

Show all ︎Show 5

Papers 120

  1. Compression-side microcrack initiation governed by strain localization in ultra-high-strength steel during bending

    Jui Yamamura, Kohei Kikuchi, Hiroki Saito, Naoki Yamaguchi, Tsuyoshi Shiozaki, Yuji Ichikawa, Kazuhiro Ogawa

    Materials Science and Engineering: A　973　150758-150758　2026/10

    Publisher: Elsevier BV

    DOI： 10.1016/j.msea.2026.150758 　

    ISSN： 0921-5093

  2. Mechanisms of oxide layer fracture during microparticle impact bonding Peer-reviewed

    Laura Wu, Yuji Ichikawa, Mostafa Hassani

    Scripta Materialia　117444-117444　2026/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.scriptamat.2026.117444 　

    ISSN： 1359-6462

  3. Effect of grain size on impact and bonding behavior of metallic microparticles Peer-reviewed

    Jianxiong Li, Gil-Ju Na, Yuji Ichikawa, Mostafa Hassani

    Materials & Design　115615-115615　2026/02

    Publisher: Elsevier BV

    DOI： 10.1016/j.matdes.2026.115615 　

    ISSN： 0264-1275

  4. Effect of Stress Concentration and Microstructure on Fatigue Strength of Arc-Welded Joints Made of Ultra-High Strength Steel Sheets

    Naoki Yamaguchi, Tsuyoshi Shiozaki, Yoshikiyo Tamai, Yuji Ichikawa, Kazuhiro Ogawa

    MATERIALS TRANSACTIONS　2026

    Publisher: Japan Institute of Metals

    DOI： 10.2320/matertrans.mt-z2026010 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  5. Strain rate dependence of flow stress under ultrahigh strain rate conditions: A practical estimation method based on ball impact and indentation Peer-reviewed

    Kiyohiro Ito, Yuji Ichikawa

    International Journal of Impact Engineering　105435-105435　2025/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.ijimpeng.2025.105435 　

    ISSN： 0734-743X

  6. Microparticle impact–induced bond strength in metals peaks with velocity Peer-reviewed

    Qi Tang, Yuji Ichikawa, Mostafa Hassani

    Proceedings of the National Academy of Sciences　122　(14)　2025/03/31

    Publisher: Proceedings of the National Academy of Sciences

    DOI： 10.1073/pnas.2424355122 　

    ISSN： 0027-8424

    eISSN： 1091-6490

    More details Close

    Supersonic impact of metallic microparticles onto metallic substrates generates extreme interfacial deformation and high contact pressures, enabling solid-state metallic bonding. Although higher impact velocities are generally believed to improve bond quality and mechanical properties in materials formed by supersonic impact deposition, here we report a peak in bond strength for single microparticle impact bonding, followed by a decline at higher impact velocities. Our in situ micromechanical measurements of interfacial strength for Al microparticles bonded to Al substrates reveal a three-fold increase from the critical bonding velocity (800 m/s) to a peak strength around 1,060 m/s. Interestingly, further increase in impact velocity results in a rapid decline in local interfacial strength. The decline continues up to the highest velocity studied, 1,337 m/s, which is well below the threshold required to induce melting or erosion. We show that a mechanistic transition from material strengthening to intensified elastic recovery is responsible for the peak strength in impact-induced bonding, with evidence linking the intensified elastic recovery to adiabatic softening at high impact velocities. Beyond 1,000 m/s for Al, interfacial damage induced by the intensified elastic recovery offsets the strength gain from higher impact velocities, resulting in a net decline in interfacial strength. This mechanistic understanding shall offer insights into the optimal design of processes that rely on impact bonding.

  7. Nanotwinning grain refinement induced by micro-needle peening in arc-welded ultra-high strength steel sheet Peer-reviewed

    Naoki Yamaguchi, Takeshi Nishiyama, Tsuyoshi Shiozaki, Yoshikiyo Tamai, Yuji Ichikawa, Kazuhiro Ogawa

    Materialia　38　102231-102231　2024/12

    Publisher: Elsevier BV

    DOI： 10.1016/j.mtla.2024.102231 　

    ISSN： 2589-1529

  8. Strength gradient in impact-induced metallic bonding Peer-reviewed

    Qi Tang, David Veysset, Hamid Assadi, Yuji Ichikawa, Mostafa Hassani

    Nature Communications　15　(1)　2024/11/07

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41467-024-53990-z 　

    eISSN： 2041-1723

  9. Surface oxide layer strengthening and fracture during flattening of powder particles Peer-reviewed

    Qi Tang, Yuji Ichikawa, Mostafa Hassani

    Scripta Materialia　244　116008-116008　2024/04

    Publisher: Elsevier BV

    DOI： 10.1016/j.scriptamat.2024.116008 　

    ISSN： 1359-6462

  10. Mechanically Robust Self-organized Crack-free Nanocellular Graphene.with Outstanding Electrochemical Properties in Sodium ion Battery Peer-reviewed

    Wong-Young Park, Jiuhui Han, Jongun Moon, Soo-Hyun Joo, Takeshi Wada, Yuji Ichikawa, Kazuhiro Ogawa, Hyoung Seop Kim, Mingwei Chen, Hidemi Kato

    Advanced Materials　2024/02

    DOI： 10.1002/adma.202311792 　

  11. Fatigue crack propagating behavior from inner surface crack on bent sheet of ultra-high strength steel Peer-reviewed

    Naoki Yamaguchi, Yuichi Tokita, Tsuyoshi Shiozaki, Yoshikiyo Tamai, Yuji Ichikawa, Kazuhiro Ogawa

    International Journal of Fatigue　107819-107819　2023/07

    Publisher: Elsevier BV

    DOI： 10.1016/j.ijfatigue.2023.107819 　

    ISSN： 0142-1123

  12. Current Status and Challenges for Unified Understanding of Bonding Mechanism in Solid Particle Deposition Process Invited Peer-reviewed

    Yuji Ichikawa, Kentaro Shinoda

    MATERIALS TRANSACTIONS　62　(6)　691-702　2021/06/01

    DOI： 10.2320/matertrans.t-m2021813 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  13. Elucidation of cold-spray deposition mechanism by auger electron spectroscopic evaluation of bonding interface oxide film Peer-reviewed

    Yuji Ichikawa, Ryotaro Tokoro, Masatoshi Tanno, Kazuhiro Ogawa

    Acta Materialia　164　39-49　2019/02/01

    DOI： 10.1016/j.actamat.2018.09.041 　

    ISSN： 1359-6454

  14. コールドスプレー法における粒子・基材の変形挙動の高精度解析に向けた基礎検討—Fundamental Study for High Accuracy Analysis of Deformation Behavior of a Particle and a Substrate in Cold Spray Process

    伊藤 潔洋, 北原 佑馬, 土屋 紳, 市川 裕士

    溶射 : 日本溶射学会誌　63　(1)　3-12　2026/01

    Publisher: 東大阪 : 日本溶射学会

    ISSN： 0916-6076

  15. Effect of Stress Concentration and Microstructure on Fatigue Strength of Arc-Welded Joints Made of Ultra-High Strength Steel Sheets Peer-reviewed

    Naoki YAMAGUCHI, Tsuyoshi SHIOZAKI, Yoshikiyo TAMAI, Yuji ICHIKAWA, Kazuhiro OGAWA

    Journal of the Society of Materials Science, Japan　74　(12)　779-786　2025/12/15

    Publisher: Society of Materials Science, Japan

    DOI： 10.2472/jsms.74.779 　

    ISSN： 0514-5163

    eISSN： 1880-7488

  16. Ballistic limits and failure patterns of TiAl alloy plates in particle impact Peer-reviewed

    Yu Kurashige, Kosei Ogita, Jun Muto, Hiroyuki Nagahama, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Yutaro Ota, Keiji Kubushiro

    Materials & Design　115115-115115　2025/11

    Publisher: Elsevier BV

    DOI： 10.1016/j.matdes.2025.115115 　

    ISSN： 0264-1275

  17. Investigation of factors influencing rotating bending fatigue properties of carburized steel using large data source Peer-reviewed

    Shogo Takesue, Yuki Nakamura, Jinta Arakawa, Koichiro Nambu, Yuji Ichikawa, Hiroyuki Akebono, Kiyotaka Masaki, Shoichi Kikuchi

    International Journal of Fatigue　198　109041-109041　2025/09

    Publisher: Elsevier BV

    DOI： 10.1016/j.ijfatigue.2025.109041 　

    ISSN： 0142-1123

  18. Investigation of Crack Propagation Behaviors in Thermal Barrier Coatings after Heat Treatment in Hydrogen Environments by <i>In Situ</i> Three-Point Bending Tests Peer-reviewed

    Jiyuan Cui, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Makoto Nakashima, Atsushi Suzuki, Fumio Sato

    Key Engineering Materials　1014　53-58　2025/06/10

    Publisher: Trans Tech Publications, Ltd.

    DOI： 10.4028/p-dz2atp 　

    eISSN： 1662-9795

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    Crack propagation behavior is a critical factor influencing the service life of thermal barrier coatings (TBCs). With the use of hydrogen as a fuel in a carbon-neutrality context, incomplete combustion of hydrogen gas will introduce potential new failure modes for TBCs. Therefore, it is crucial to evaluate the crack propagation behavior of TBCs subjected to a hydrogen environment. In this study, in-situ three-point bending tests were used to investigate the crack propagation behavior within the top coat after heat treatment under air and hydrogen environments. The results reveal that the sintering degree is reduced after heat treatment in hydrogen environments, accompanied by the formation of numerous microcracks before the displacement reaches 0.6mm. Conversely, heat treatment in air environments results in a higher sintering degree and promotes the propagation of main vertical cracks on the surface of the top coat as the displacement gradually increases to 0.8 mm. Additionally, this study discusses the effect of sintering on the fracture toughness of the top coat and further elucidates the effect of hydrogen fuel on the overall durability of TBCs.

  19. Impedance spectroscopy analysis of yttria‐stabilized zirconia thermal barrier coatings during high‐temperature oxidation Peer-reviewed

    Yu Tan, Kazuhiro Ogawa, Yuji Ichikawa

    Journal of the American Ceramic Society　2025/06/08

    Publisher: Wiley

    DOI： 10.1111/jace.70019 　

    ISSN： 0002-7820

    eISSN： 1551-2916

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    Abstract The degradation of thermal barrier coatings on Inconel alloy 601, prepared using air plasma spraying deposition and exposed to 1100°C in the atmosphere, was investigated using impedance spectroscopy. The thickness of the thermally grown oxide (TGO) layer in the thermal barrier coating, which was prepared with yttria‐stabilized zirconia as the surface layer, was observed to increase as the oxidation process occurred at high temperatures. It is important to note that the thermal barrier coating may fracture and fail over time due to the continuous thickening of the TGO. In order to assess the thickness of the TGO, we propose a potential method that utilizes AC impedance data, scanning electron microscopy, and energy spectrum analysis.

  20. Effects of reducing environments on aging behavior and performance of air plasma-sprayed yttria-stabilized zirconia thermal barrier coatings Peer-reviewed

    Jiyuan Cui, Yang Xie, Hiroki Saito, Yuji Ichikawa, Makoto Nakashima, Atsushi Suzuki, Fumio Sato, Kazuhiro Ogawa

    Ceramics International　2025/05

    Publisher: Elsevier BV

    DOI： 10.1016/j.ceramint.2025.05.222 　

    ISSN： 0272-8842

  21. Direct Copper Metallization of Carbon Fiber-Reinforced Thermoplastic Polymers for Lightning Strike Protection Using Low-Pressure Cold Spray Peer-reviewed

    Hiroki Saito, Atsushi Izumi, Yuxian Meng, Yuji Ichikawa, Kazuhiro Ogawa, Syoma Ishida, Yoshihiro Naruse, Akihiko Nishizaki

    Journal of Thermal Spray Technology　2024/12/27

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11666-024-01885-2 　

    ISSN： 1059-9630

    eISSN： 1544-1016

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    Abstract Metallizing polymer composite via cold spray is an attractive process for producing lightning strike protection (LSP) in composite-based aircraft. However, direct deposition of copper, the most common conductive metal, on carbon fiber-reinforced thermoplastic polymers (CFRTP) remains challenging due to the severe polymer erosion and carbon fiber fracture induced by cold-sprayed multi-particle impact. In this work, the copper direct deposition window was explored by varying copper particle size and operating gas temperature, which are primary parameters determining particle impact energy. Following this, a lightning strike test was performed to evaluate the protective effectiveness of the deposited copper coating in reducing damage to the underlying CFRTP substrate. It was revealed that fine copper particles approximately 5 µm in diameter are effective for direct deposition due to their minimal induction of polymer erosion. Sufficient heating of the particle spray area above the glass transition temperature promoted continuous coating formation. The lightning strike tests demonstrated that the cold-sprayed copper coating effectively protects the underlying CFRTP by acting as a major electric current path and a sacrificial protective layer. These findings highlight the promising potential of cold spray as a new LSP technology for polymer composite aircraft.

  22. Degradation Behavior of Yttria-stabilized Zirconia in Thermal Barrier Coatings under Reducing Environments after Short-term Heat Treatment Peer-reviewed

    Jiyuan Cui, Hiroki Saito, Kazuhisa Sato, Yuji Ichikawa, Kazuhiro Ogawa, Makoto Nakashima, Atsushi Suzuki, Fumio Sato

    Ceramics International　2024/09

    Publisher: Elsevier BV

    DOI： 10.1016/j.ceramint.2024.09.316 　

    ISSN： 0272-8842

  23. Improvement of the deposition efficiency and adhesion strength of cold sprayed fluoropolymer coating by laser surface texturing of the substrate Peer-reviewed

    Wesley Lock Sulen, Chrystelle Bernard, Shinya Onodera, Junichi Ishizaki, Nicolas Mary, Yuji Ichikawa, Kazuhiro Ogawa

    Surface and Coatings Technology　478　130489-130489　2024/02

    Publisher: Elsevier BV

    DOI： 10.1016/j.surfcoat.2024.130489 　

    ISSN： 0257-8972

  24. Optimal Design of a Cold Spray Nozzle for Inner Wall Coating Fabrication by Combining CFD Simulation and Neural Networks Peer-reviewed

    Yuxian Meng, Hiroki Saito, Chrystelle Bernard, Yuji Ichikawa, Kazuhiro Ogawa

    Journal of Thermal Spray Technology　2024/01/22

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11666-024-01716-4 　

    ISSN： 1059-9630

    eISSN： 1544-1016

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    Abstract Recently, the low-pressure cold spray (LPCS) technique has been used to fabricate superhydrophobic polymer coatings on metallic substrates, suggesting a significant potential in engineering applications. This study aims to design a spiral LPCS nozzle to coat the pipe’s inner wall with superhydrophobic polymer. The design goal is to achieve the maximum particle velocity in a confined (limited) space, assuming that the powder can enter the feeding tube through the Venturi effect. Achieving these two goals simultaneously using only computational fluid dynamics (CFD) simulation is challenging. Therefore, the CFD simulation was combined with the neural network (NN) method to design the new spiral nozzle. During training, the effects of the NN models and algorithms were investigated. The results showed that the feedforwardnet model combined with the trainbr or trainlm algorithm (from MATLAB 2016b software), presented a minimal error for particle velocity or gas flux prediction, respectively. The trained NN correlates the nozzle parameters (i.e., mean coil diameter, spring lift angle, and expansion ratio) and its performances (i.e., particle velocity and gas flux in the powder feeding tube). As a result, the optimal spiral nozzle was determined based on the design goal of maximum particle velocity and suitable gas flux in the powder feeding tube. Furthermore, the effect of each nozzle parameter on the particle velocity and gas flux in the powder feeding tube was analyzed. The cold spray experiment confirmed that the designed spiral nozzle could fabricate Perfluoroalkoxy alkane (PFA) coatings.

  25. Suggestion of a New Repair Technique for Steel Structures by Low-Pressure Cold Spray and Laser Cleaning Peer-reviewed

    Tomonori Hatori, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Yuichi Kato, Kosaku Motomura, Michito Nakano, Norimichi Yamashita

    MATERIALS TRANSACTIONS　64　(10)　2515-2522　2023/10/01

    Publisher: Japan Institute of Metals

    DOI： 10.2320/matertrans.mt-t2023001 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  26. 固相微粒子衝突による金属積層造形—Metal Additive Manufacturing by Solid Particle Impact—特集 様々な3D造形技術の最前線

    齋藤 宏輝, 舟木 大河, 市川 裕士, 小川 和洋

    溶接学会誌 = Journal of the Japan Welding Society　92　(6)　398-402　2023/09

    Publisher: 東京 : 溶接学会

    ISSN： 0021-4787

  27. Soft Magnetic Properties of Agglomerates of Fe Nanoparticles Fabricated by Cold-Spray Technique Peer-reviewed

    Eiji Watanabe, Yuhei Kurumiya, Tomoyuki Ogawa, Hiroaki Kura, Hiroki Saito, Yuji Ichikawa, Shuya Namikawa, Hiroki Watanabe, Kazuhiro Ogawa

    IEEE Transactions on Magnetics　1-1　2023/07

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

    DOI： 10.1109/tmag.2023.3293394 　

    ISSN： 0018-9464

    eISSN： 1941-0069

  28. Characterization and Modification of Tensile Strength Property of Cold-Sprayed Pure Iron Coating with Fine Crystal Grains Peer-reviewed

    Kiyohiro Ito, Yuji Ichikawa

    MATERIALS TRANSACTIONS　64　(6)　1210-1216　2023/06/01

    Publisher: Japan Institute of Metals

    DOI： 10.2320/matertrans.mt-t2022004 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  29. Evaluation of Absorbed Energy in High-Velocity Particle Impact for Aero-Engine Materials Peer-reviewed

    Yuya IKUTA, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA, Yutaro OTA, Yohei SAKAKIBARA

    Journal of the Society of Materials Science, Japan　72　(2)　112-119　2023/02/15

    Publisher: Society of Materials Science, Japan

    DOI： 10.2472/jsms.72.112 　

    ISSN： 0514-5163

    eISSN： 1880-7488

  30. Interfacial oxidation and boundary amorphization deposition mechanisms of GaN powder on metallic substrate by low-pressure cold spraying Peer-reviewed

    Shaoyun Zhou, Jiayu Sun, Chrystelle Bernard, Hao Lin, Hiroki Saito, Takamichi Miyazaki, Yuji Ichikawa, Kazuhiro Ogawa

    Applied Surface Science　156221-156221　2022/12

    Publisher: Elsevier BV

    DOI： 10.1016/j.apsusc.2022.156221 　

    ISSN： 0169-4332

  31. Effect of SiC Content and Particle Size on the Self-Healing Property of Plasma-Sprayed Environmental Barrier Coatings Peer-reviewed

    Kent MITANI, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA, Takaya MASUDA, Naoki OKAMOTO

    MATERIALS TRANSACTIONS　63　(12)　1670-1676　2022/12

    Publisher: Japan Institute of Metals

    DOI： 10.2320/matertrans.MT-T2022001 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  32. Fabrication of Soft Magnetic Fe-Ni Films by Direct Deposition of Nanoparticle Agglomerates Using Cold-Spray Technique Peer-reviewed

    Eiji Watanabe, Hiroaki Kura, Tomoyuki Ogawa, Yuji Ichikawa, Kazuhiro Ogawa

    Journal of Thermal Spray Technology　32　(1)　226-233　2022/10/26

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11666-022-01481-2 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  33. Parametric Study to Repair Leaks in Water Pipe Using the Low-Pressure Cold Spray Technique Peer-reviewed

    Yuxian Meng, Hiroki Saito, Chrystelle A. Bernard, Yuji Ichikawa, Kazuhiro Ogawa

    Journal of Thermal Spray Technology　31　(8)　2560-2576　2022/09/30

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11666-022-01469-y 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  34. Suggestion of a New Repair Technique for Steel Structures by Low-Pressure Cold Spray and Laser Cleaning Peer-reviewed

    Tomonori HATORI, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA, Yuichi KATO, Kosaku MOTOMURA, Michito NAKANO, Norimichi YAMASHITA

    Journal of Japan Thermal Spray Society　59　(3)　137-143　2022/09

    DOI： 10.11330/jtss.59.137 　

  35. Nano-Mechanochemistry at the Solid-State Particle Bonding Interface Invited Peer-reviewed

    Yuji ICHIKAWA

    Journal of the Society of Materials Science, Japan　71　(8)　678-683　2022/08/15

    Publisher: Society of Materials Science, Japan

    DOI： 10.2472/jsms.71.678 　

    ISSN： 0514-5163

    eISSN： 1880-7488

  36. Improvement in the Self-healing Property of Plasma-Sprayed Environmental Barrier Coatings by SiC Addition Peer-reviewed

    Takumi Kitahara, Kent Mitani, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Takaya Masuda

    Journal of Thermal Spray Technology　31　(8)　2314-2326　2022/08

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11666-022-01441-w 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  37. Dynamic recrystallization of Sn coatings on carbon-fiber-reinforced plastics during cold spray additive manufacturing Peer-reviewed

    Jiayu Sun, Kenta Yamanaka, Shaoyun Zhou, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Akihiko Chiba

    Additive Manufacturing　56　102949-102949　2022/08

    Publisher: Elsevier BV

    DOI： 10.1016/j.addma.2022.102949 　

    ISSN： 2214-8604

    eISSN： 2214-8604

  38. Effect of cold spray deposition on fatigue strength of arc-welded ultra-high strength steel sheet Peer-reviewed

    Naoki Yamaguchi, Tsuyoshi Shiozaki, Yoshikiyo Tamai, Kanji Okuda, Yuji Ichikawa, Kazuhiro Ogawa

    International Journal of Fatigue　106876-106876　2022/04

    Publisher: Elsevier BV

    DOI： 10.1016/j.ijfatigue.2022.106876 　

    ISSN： 0142-1123

  39. Characterization and Modification of Tensile Strength Property of Cold-Sprayed Pure Iron Coating with Fine Crystal Grains Invited Peer-reviewed

    Kiyohiro Ito, Yuji Ichikawa

    Journal of Japan Thermal Spray Society　59　(2)　84-90　2022/03

    DOI： 10.11330/jtss.59.84 　

  40. Effect of SiC Content and Particle Size on the Self-healing Property of Plasma-Sprayed Environmental Barrier Coatings Peer-reviewed

    Kent MITANI, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA, Takaya MASUDA, Naoki OKAMOTO

    Journal of Japan Thermal Spray Society　59　(1)　27-32　2022/01

    DOI： 10.11330/jtss.59.27 　

  41. Adhesion mechanism of Sn coatings on the carbon fiber reinforced plastics using cold spray technique Peer-reviewed

    Jiayu Sun, Kenta Yamanaka, Shaoyun Zhou, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Akihiko Chiba

    Applied Surface Science　579　151873-151873　2021/11

    Publisher: Elsevier BV

    DOI： 10.1016/j.apsusc.2021.151873 　

    ISSN： 0169-4332

  42. Microstructure and corrosion study of Fe-based bulk metallic glass obtained by spark plasma sintering Peer-reviewed

    L. Zarazúa-Villalobos, N. Mary, J. Soo-Hyun, K. Ogawa, H. Kato, Y. Ichikawa

    Journal of Alloys and Compounds　880　160399-160399　2021/11

    Publisher: Elsevier BV

    DOI： 10.1016/j.jallcom.2021.160399 　

    ISSN： 0925-8388

  43. Development and Characterization of Photocatalytic GaN Coatings by Cold Spray Process Peer-reviewed

    Shaoyun Zhou, Chrystelle A. Bernard, Kesavan Ravi, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Shu Yin

    Journal of Thermal Spray Technology　30　(5)　1294-1309　2021/05/20

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11666-021-01207-w 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  44. Thermal Effects in Sn Coating on a Carbon Fiber Reinforced Plastic by Cold Spraying Peer-reviewed

    Jiayu Sun, Shaoyun Zhou, Kenta Yamanaka, Yuji Ichikawa, Hiroki Saito, Kazuhiro Ogawa, Akihiko Chiba

    Journal of Thermal Spray Technology　2021/05/11

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11666-021-01208-9 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  45. Development of Cu Coating on Ceramic Substrates by Low Pressure Cold Spray and its Deposition Mechanism Analysis Peer-reviewed

    Minjae Yu, Yuji Ichikawa, Kazuhiro Ogawa

    Materials Science Forum　1016　1703-1709　2021/01

    Publisher: Trans Tech Publications, Ltd.

    DOI： 10.4028/www.scientific.net/msf.1016.1703 　

    ISSN： 0255-5476

    eISSN： 1662-9752

  46. Fundamental Study of Suspension Plasma Sprayed Silicate Coatings Peer-reviewed

    Ryotaro Yanaoka, Yuji Ichikawa, Kazuhiro Ogawa, Takaya Masuda, Kazuto Sato

    MATERIALS TRANSACTIONS　61　(7)　1390-1395　2020/07/01

    Publisher: Japan Institute of Metals

    DOI： 10.2320/matertrans.t-m2020826 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  47. Deposition Mechanism Analysis of Cold-Sprayed Fluoropolymer Coatings and Its Wettability Evaluation Peer-reviewed

    Wesley Lock Sulen, Kesavan Ravi, Chrystelle Bernard, Yuji Ichikawa, Kazuhiro Ogawa

    Journal of Thermal Spray Technology　2020/06/08

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11666-020-01059-w 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  48. Improvement of Delamination Resistant Property of Thermal Barrier Coatings by Means of Internal Oxidation into Bond Coatings Peer-reviewed

    Gota KATAYANAGI, Yuji ICHIKAWA, Kazuhiro OGAWA, Tadashi TATSUKI, Manabu TADA, Yuki SHIBASAKI

    Journal of Japan Thermal Spray Society　57　(2)　97-104　2020/04

  49. Current Status and Challenges for Unified Understanding of Bonding Mechanism in Solid Particle Deposition Process Invited Peer-reviewed

    Yuji ICHIKAWA, Kentaro SHINODA

    Journal of Japan Thermal Spray Society　57　(2)　58-71　2020/04

    Publisher:

    ISSN： 0916-6076

  50. Control of Suspension Plasma Sprayed Yb Silicate coatings by means of SiO2-rich Suspension Peer-reviewed

    Takumi Kitahrara, Ryotaro Yanaoka, Yuji Ichikawa, Kazuhiro Ogawa, Takaya Masuda, Kazuto Sato

    57　(1)　20-26　2020/01

  51. Microscale Bonding Strength of Cu-Fe-Al Transferred Lamellar Microstructure Formed by Copper-Coated Seel Fine Particle Peening Peer-reviewed

    Yuji Ichikawa, Ryotaro Tokoro, Yutaka Kameyama

    Journal of the Japan Institute of Metals and Materials　84　(1)　28-35　2020/01

    Publisher: Japan Institute of Metals

    DOI： 10.2320/jinstmet.j2019033 　

    ISSN： 0021-4876

    eISSN： 2433-7501

  52. Fabrication of micro-/nano-structured super-hydrophobic fluorinated polymer coatings by cold-spray Peer-reviewed

    Ravi Kesavan, Sulen Wesley Lock, Bernard Chrystelle, Ichikawa Yuji, Ogawa Kazuhiro

    SURFACE & COATINGS TECHNOLOGY　373　17-24　2019/09/15

    DOI： 10.1016/j.surfcoat.2019.05.078 　

    ISSN： 0257-8972

  53. History of International Thermal Spray Conference and Trends in Research and Development of Thermal Spray Invited Peer-reviewed

    Kenaro Shinoda, Akihiro Kanno, Masato Suzuki, Mohammed Shafien, Yuji Ichikawa

    Journal of Japan Thermal Spray Society　56　(2)　65-79　2019/04

  54. Influence of microstructure on fatigue property of ultra high-strength steels Peer-reviewed

    Okuda Kanji, Ogawa Kazuhiro, Ichikawa Yuji, Shiozaki Tsuyoshi, Yamaguchi Naoki

    FRATTURA ED INTEGRITA STRUTTURALE　13　(48)　125-134　2019/04

    DOI： 10.3221/IGF-ESIS.48.15 　

    ISSN： 1971-8993

    eISSN： 1971-8993

  55. The feasibility study of GaN coatings by cold spray technique

    Shaoyun Zhou, Chrystelle A. Bernard, Kesavan Ravi, Yuji Ichikawa, Kazuhiro Ogawa

    Proceedings of the International Thermal Spray Conference　2019-May　462-468　2019/01/01

  56. Development of fluoropolymer coating using low pressure cold spray

    W. Lock Sulen, K. Ravi, Y. Ichikawa, K. Ogawa

    Proceedings of the International Thermal Spray Conference　2019-May　252-258　2019/01/01

  57. Effects of nano-ceramic particle addition for cold sprayed fluoropolymer coatings

    W. Lock Sulen, K. Ravi, C. Bernard, N. Mary, Y. Ichikawa, K. Ogawa

    Key Engineering Materials　813 KEM　141-146　2019/01/01

    DOI： 10.4028/www.scientific.net/KEM.813.141 　

    ISSN： 1013-9826

    eISSN： 1662-9795

  58. Fundamental Study of Suspension Plasma Sprayed Silicate Coatings Peer-reviewed

    Ryotaro YANAOKA, Yuji ICHIKAWA, Kazuhiro OGAWA, Takaya MASUDA, Kazuto SATO

    56　(1)　2-7　2019/01

  59. Microstructure control of cold-sprayed pure iron coatings formed using mechanically milled powder Peer-reviewed

    Kiyohiro Ito, Yuji Ichikawa

    Surface and Coatings Technology　357　129-139　2018/10

    DOI： 10.1016/j.surfcoat.2018.10.016 　

    ISSN： 0257-8972

  60. Influence of Substrate Surface Roughness on Copper Coating Formation Behavior on Graphites by Low Temperature Plasma Spraying Peer-reviewed

    Kenta HIRAYAMA, Yuji ICHIKAWA, Kazuhiro OGAWA, Akira NARITA, Katsuhiro CHIKUBA

    Journal of Japan Thermal Spray Society　55　(1)　2-7　2018/01

    DOI： 10.11330/jtss.55.2 　

  61. Investigation of cold spray bonding mechanism focusing on the thin oxide film present in the deposition interface

    Yuji Ichikawa, Ryotaro Tokoro, Kazuhiro Ogawa

    Proceedings of the International Thermal Spray Conference　2018-May　238-241　2018/01/01

  62. Microstructural change and delamination resistance of the thermal barrier coatings with cold sprayed ce-content bond coats Peer-reviewed

    Yuji Ichikawa, Shinnosuke Horiuchi, Kazuhiro Ogawa, Mitsuhiro Oikawa, Tadashi Tatsuki, Hiroyuki Yamazaki

    Zairyo/Journal of the Society of Materials Science, Japan　66　(2)　142-149　2017/02/01

    Publisher: Society of Materials Science Japan

    DOI： 10.2472/jsms.66.142 　

    ISSN： 1880-7488 0514-5163

    eISSN： 1880-7488

  63. Microstructural change and delamination resistance of the thermal barrier coatings with cold sprayed ce-content bond coats Peer-reviewed

    Yuji Ichikawa, Shinnosuke Horiuchi, Kazuhiro Ogawa, Mitsuhiro Oikawa, Tadashi Tatsuki, Hiroyuki Yamazaki

    Zairyo/Journal of the Society of Materials Science, Japan　66　(2)　142-149　2017/02/01

    Publisher: Society of Materials Science Japan

    DOI： 10.2472/jsms.66.142 　

    ISSN： 1880-7488 0514-5163

    eISSN： 1880-7488

  64. Critical Deposition Condition of CoNiCrAlY Cold Spray Based on Particle Deformation Behavior Peer-reviewed

    Yuji Ichikawa, Kazuhiro Ogawa

    JOURNAL OF THERMAL SPRAY TECHNOLOGY　26　(3)　340-349　2017/02

    DOI： 10.1007/s11666-016-0477-6 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  65. Microscale adhesion strength evaluation of cold sprayed copper deposit

    Y. Ichikawa, R. Tokoro, K. Ogawa

    Proceedings of the International Thermal Spray Conference　1　328-332　2017

  66. Micro-scale strength evaluation for bonding interface of cold sprayed coatings Peer-reviewed

    Yuji Ichikawa, Ryotaro Tokoro, Kazuhiro Ogawa

    Materials Science Forum　879　795-800　2017

    Publisher: Trans Tech Publications Ltd

    DOI： 10.4028/www.scientific.net/MSF.879.795 　

    ISSN： 0255-5476

    eISSN： 1662-9752

  67. Experimental and Numerical Analyses on the Deposition Behavior of Spherical Aluminum Particles in the Cold-Spray-Emulated High-Velocity Impact Process Peer-reviewed

    Kiyohiro Ito, Yuji Ichikawa, Kazuhiro Ogawa

    MATERIALS TRANSACTIONS　57　(4)　525-532　2016/04

    DOI： 10.2320/matertrans.T-M2016803 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  68. Mechanistic Study and Characterization of Cold-Sprayed Ultra-High Molecular Weight Polyethylene-Nano-Ceramic Composite Coating Peer-reviewed

    Kesavan Ravi, Yuji Ichikawa, Kazuhiro Ogawa, Tiana Deplancke, Olivier Lame, Jean-Yves Cavaille

    JOURNAL OF THERMAL SPRAY TECHNOLOGY　25　(1-2)　160-169　2016/01

    DOI： 10.1007/s11666-015-0332-1 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  69. Development of cold spray emulated single particle shot system and evaluation of particle deposition behavior Peer-reviewed

    Kiyohiro Ito, Yuji Ichikawa, Kazuhiro Ogawa

    Journal of Japan Thermal Spray Society　52　(4)　2015/12

    DOI： 10.11330/jtss.52.141 　

  70. Simulation of the Cold Spray Particle Deposition Process Peer-reviewed

    Jing Xie, Daniel Nelias, Helene Walter-Le Berre, Kazuhiro Ogawa, Yuji Ichikawa

    JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME　137　(4)　41101　2015/10

    DOI： 10.1115/1.4030257 　

    ISSN： 0742-4787

    eISSN： 1528-8897

  71. Effect of Substrate Surface Oxide Film Thickness on Deposition Behavior and Deposition Efficiency in the Cold Spray Process Peer-reviewed

    Yuji Ichikawa, Kazuhiro Ogawa

    JOURNAL OF THERMAL SPRAY TECHNOLOGY　24　(7)　1269-1276　2015/10

    DOI： 10.1007/s11666-015-0299-y 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  72. Development of Ultra-High Molecular Weight Polyethylene (UHMWPE) Coating by Cold Spray Technique Peer-reviewed

    Kesavan Ravi, Yuji Ichikawa, Tiana Deplancke, Kazuhiro Ogawa, Olivier Lame, Jean-Yves Cavaille

    JOURNAL OF THERMAL SPRAY TECHNOLOGY　24　(6)　1015-1025　2015/08

    DOI： 10.1007/s11666-015-0276-5 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  73. Development of biomedical porous titanium coating by cold spray process Peer-reviewed

    Yasuhiro Yamazaki, Syoma Seki, Tatsuya Sato, Naoyuki Ohno, Michiyoshi Sone, Yuji Ichikawa, Takamich Miyazaki, Kazuhiro Ogawa

    Journal of Japan Thermal Spray Society　52　(2)　62-67　2015/06/30

    Publisher: Japan Thermal Spray Society

    DOI： 10.11330/jtss.52.62 　

    ISSN： 0916-6076

    More details Close

    The purpose of the present study is to develop a novel implant material which has a superior biocompatibilities and high strength by means of a coating technology.In this study,the cold spray technique was selected and used as surface modification method of a titanium alloy for the development of implant material;the porous pure titanium coating was sprayed on a titanium alloy,Ti-6Al-4V,by using the cold spray technique.The influences of spray conditions and post-sprayed heat treatments on the mechanical properties of the cold sprayed biomedical coatings were investigated.It was revealed from the experimental results that the developed biomedical titanium coatings had a low elastic modulus,high adhesion and enough tensile strength.Most important factor to get the superior biomedical coatings was the post-spray heat treatment because both the adhesion and cohesion strengths of the coatings could be improved significantly due to the post-spray heat treatment.It was also revealed that both the adhesion and cohesion strengths were improved by the recrystallization of nanoparticles generated by the high speed collision of particle during the cold spray process.The cold sprayed biomedical coatings developed in this work have enough fatigue properties.

  74. Influence of Surface Oxide Film on Deposition Behavior of Cold Spray Emulated Particle by Single Particle Shot System Peer-reviewed

    Kiyohiro Ito, Yuji Ichikawa, Kazuhiro Ogawa

    Thermal Spray 2015: Proceedings of the International Thermal Spray Conferenc　513-519　2015/05/11

  75. Mechanistic Study and Characterization of Cold Sprayed Ultra High Molecular Weight Polyethylene-Nano Ceramic Composite Peer-reviewed

    Kesavan Ravi, Yuji Ichikawa, Tiana Deplancke, Kazuhiro Ogawa, Olivier Lame, Jean-Yves Cavaille

    Thermal Spray 2015: Proceedings of the International Thermal Spray Conferenc　585-591　2015/05/11

  76. Influence of surface oxide film on deposition behavior of cold spray emulated particle by single particle shot system Peer-reviewed

    Ito K, Ichikawa Y, Ogawa K

    Proceedings of the International Thermal Spray Conference　1　513-519　2015

  77. Micro-scale interface strength evaluation of cold sprayed deposit Peer-reviewed

    Yuji ICHIKAWA, Yusuke WATANABE, Kazuhiro OGAWA, Hideo MIURA

    Thermal Spray 2014: Proc. of ITSC2014　707-710　2014/05/21

  78. Simulation of the Cold Spray Deposition Process for Aluminum and Copper using Lagrangian, ALE and CEL Methods Peer-reviewed

    Daniel Nélias, Jing Xie, Hélène Walter-Le Berre, Yuji Ichikawa, Kazuhiro Ogawa

    Thermomechanical Industrial Processes: Modeling and Numerical Simulation　321-358　2014/03/17

    Publisher: Wiley Blackwell

    DOI： 10.1002/9781118578759.ch7 　

  79. Effect of load frequency on high cycle fatigue strength of bullet train axle steel Peer-reviewed

    Isamu Nonaka, Sota Setowaki, Yuji Ichikawa

    INTERNATIONAL JOURNAL OF FATIGUE　60　43-47　2014/03

    DOI： 10.1016/j.ijfatigue.2013.08.020 　

    ISSN： 0142-1123

    eISSN： 1879-3452

  80. Influence of substrate materials on deposition behaviour of cold spray emulated pure single Al particle

    K. Ito, Y. Ichikawa, K. Ogawa

    Recent Advances in Structural Integrity Analysis - Proceedings of the International Congress (APCF/SIF-2014)　519-523　2014

    Publisher: Elsevier

    DOI： 10.1533/9780081002254.519 　

  81. MICROTEXTURE AND ELECTRICAL AND MECHANICAL PROPERTIES OF THE COLD-SPRAYED COPPER DEPOSIT Peer-reviewed

    Yusuke Watanabe, Yuji Ichikawa, Kazuhiro Ogawa, Hideo Miura

    PROCEEDINGS OF THE ASME INTERNATIONAL TECHNICAL CONFERENCE AND EXHIBITION ON PACKAGING AND INTEGRATION OF ELECTRONIC AND PHOTONIC MICROSYSTEMS, 2013, VOL 1　2014

  82. MICROTEXTURE AND ELECTRICAL AND MECHANICAL PROPERTIES OF THE COLD-SPRAYED COPPER DEPOSIT Peer-reviewed

    Yusuke Watanabe, Yuji Ichikawa, Kazuhiro Ogawa, Hideo Miura

    PROCEEDINGS OF THE ASME INTERNATIONAL TECHNICAL CONFERENCE AND EXHIBITION ON PACKAGING AND INTEGRATION OF ELECTRONIC AND PHOTONIC MICROSYSTEMS, 2013, VOL 1　2014

    DOI： 10.1115/ipack2013-73150 　

  83. Microstructure evaluation of cold-sprayed copper coatings by EBSD Peer-reviewed

    Yuji ICHIKAWA, Yusuke WATANABE, Isamui NONAKA, Hideo MIURA

    Journal of Japan Thermal Spray Society　50　(4)　170-175　2013/10/31

    Publisher: Japan Thermal Spray Society

    DOI： 10.11330/jtss.50.170 　

    ISSN： 0916-6076

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    The cold spray technique is a new coating technology that is based on the high velocity impinging of small solid particle on the substrate. This technique allows to produce coatings and thick deposit with less heat influence. Cold-sprayed coating indicates brittle fracture that a crack is propagated in particle interface. It is important to understand and control the microstructure. This study evaluates the microstructure and heat treatment behavior of the cold-sprayed copper coatings by SEM and EBSD (Electron Back-Scatter Diffraction) method. CI (Confident Index)and IQ (Image Quality) values of EBSD method was applied to the evaluation of crystal structure and grain boundary structures. It was found that cold-sprayed coating annealing does not complete with standard annealing conditions such as applied to the bulk material. As-sprayed coating consists of fine grains. The grains are surrounded by irregular atomic arrangement region and amorphous phase. Grain boundary and particle to particle interface are inhomogeneous. Since this irregular interface structure role diffusion barrier, heat treatment effects of cold-sprayed coatings are different from bulk materials. Moreover, it is considered that structure is possible cause of brittle fracture.

  84. Influence of Carrier Gas Composition on Microstructures and Mechanical Properties of Cold-Sprayed Titanium Coatings Peer-reviewed

    Y. Ichikawa, K. Ogawa, N. Nose, Y. Nomura, M. Takahashi, H. Amano

    Thermal Spray 2013: Innovative Coating Solutions for the Global Economy　205-209　2013/05/13

  85. Characterization of Cold-Sprayed Copper Coatings with New Evaluation Parameter of EBSD Method Peer-reviewed

    Yusuke Watanabe, Yuji Ichikawa, Isamu Nonaka, Hideo Miura

    Thermal Spray 2013: Innovative Coating Solutions for the Global Economy　132-137　2013/05/13

  86. High cycle fatigue properties of Mod.9Cr-1Mo steel at elevated temperatures Peer-reviewed

    Isamu Nonaka, Junpei Nemoto, Yuji Ichikawa, Hideo Miura

    Zairyo/Journal of the Society of Materials Science, Japan　62　(2)　105-109　2013/02

    DOI： 10.2472/jsms.62.105 　

    ISSN： 0514-5163 1880-7488

  87. Influence of carrier gas composition on microstructures and mechanical properties of cold-sprayed titanium coatings Peer-reviewed

    Ichikawa Y, Ogawa K, Nose N, Nomura Y, Takahashi M, Amano H

    Proceedings of the International Thermal Spray Conference　205-209　2013

  88. Characterization of cold-sprayed copper coatings with new evaluation parameter of EBSD method Peer-reviewed

    Watanabe Y, Ichikawa Y, Nonaka I, Miura H

    Proceedings of the International Thermal Spray Conference　132-137　2013

  89. HIGH CYCLE FATIGUE PROPERTIES OF MODIFIED 9CR-1MO STEEL AT ELEVATED TEMPERATURES Peer-reviewed

    Yoshiaki Matsumori, Jumpei Nemoto, Yuji Ichikawa, Isamu Nonaka, Hideo Miura

    INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION - 2012, VOL 8　8　85-89　2012

    DOI： 10.1115/IMECE2012-87329 　

  90. NUMERICAL SIMULATION OF THE COLD SPRAY DEPOSITION PROCESS FOR ALUMINIUM AND COPPER Peer-reviewed

    Xie Jing, Daniel Nelias, Helene Walter-le Berre, Yuji Ichikawa, Kazuhiro Ogawa

    PROCEEDINGS OF THE ASME 11TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS, 2012, VOL 1　1　109-111　2012

    DOI： 10.1115/ESDA2012-82107 　

  91. Micro-texture and physical properties of the cold-sprayed copper deposit Peer-reviewed

    Yusuke Watanabe, Yuji Ichikawa, Isamu Nonaka, Hideo Miura

    14th International Conference on Electronic Materials and Packaging, EMAP 2012　1　2012

    Publisher: {ASME} International

    DOI： 10.1109/EMAP.2012.6507870 　

  92. Micro-Texture and Physical Properties of the Cold-sprayed Copper Deposit Peer-reviewed

    Yusuke Watanabe, Yuji Ichikawa, Isamu Nonaka, Hideo Miura

    14TH INTERNATIONAL CONFERENCE ON ELECTRONIC MATERIALS AND PACKAGING (EMAP 2012)　2012

    DOI： 10.1109/EMAP.2012.6507870 　

    ISSN： 2151-7231

  93. NUMERICAL SIMULATION OF THE COLD SPRAY DEPOSITION PROCESS FOR ALUMINIUM AND COPPER Peer-reviewed

    Xie Jing, Daniel Nelias, Helene Walter-le Berre, Yuji Ichikawa, Kazuhiro Ogawa

    PROCEEDINGS OF THE ASME 11TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS, 2012, VOL 1　109-111　2012

    DOI： 10.1115/esda2012-82107 　

  94. Effect of Frequency on High Cycle Fatigue Strength of Railway Axle Stee Peer-reviewed

    S. Setowaki, Y. Ichikawa, I. Nonaka

    Proc. of 5th Int. Conf. on Very High Cycle Fatigue　153-158　2011/06/28

  95. High-temperature oxidation behavior of cold-sprayed MCrAlY coatings Peer-reviewed

    Yuji Ichikawa, Kazuhiro Ogawa, Isam Nonaka

    Zairyo/Journal of the Society of Materials Science, Japan　60　(2)　159-166　2011/02

    Publisher: Society of Materials Science, Japan

    DOI： 10.2472/jsms.60.159 　

    ISSN： 0514-5163

  96. Cold-Spraying Coupled to Nano-Pulsed Nd-YaG Laser Surface Pre-treatment Peer-reviewed

    D. K. Christoulis, S. Guetta, E. Irissou, V. Guipont, M. H. Berger, M. Jeandin, J-G. Legoux, C. Moreau, S. Costil, M. Boustie, Y. Ichikawa, K. Ogawa

    JOURNAL OF THERMAL SPRAY TECHNOLOGY　19　(5)　1062-1073　2010/09

    DOI： 10.1007/s11666-010-9500-5 　

    ISSN： 1059-9630

  97. S0306-2-4 Evaluation of high temperature oxidation behavior of a thermal barrier coating with a cold sprayed bond coating

    OGAWA Kazuhiro, Manap Abreeza, Seo Dowon, Ichikawa Yuji, Nishimura Yoshiaki, Furukawa Atuyoshi

    The proceedings of the JSME annual meeting　2010　35-36　2010

    Publisher: The Japan Society of Mechanical Engineers

    DOI： 10.1299/jsmemecjo.2010.1.0_35 　

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    The cold spray (CS) technique is known as a new coating technique. It has many advantages, i.e. dense coating, high deposition rate no phase transformation and low oxidation. The CS technique was applied to make a bond coating (BC) for a thermal barrier coating (TBC). In this study, the TBC with cold sprayed bond coat (CS-BC) and a TBC with conventional low pressure plasma sprayed BC (LPPS-BS) were prepared. High temperature oxidation behavior under stress loading was evaluated for these samples. As a result, the high temperature oxidation behavior of the TBC with CS-BC is approximately-same or slightly excellent compared to that of the TBC with LPPS-BC.

  98. J0401-2-5 Investigation of Repairing for Damaged Zinc Coated Steel by the Cold Spray Technique

    Ichikawa Yuji, OGAWA Kazuhiro, Nishimura Yoshiaki, Furukawa Atsuyosh

    The proceedings of the JSME annual meeting　2010　435-436　2010

    Publisher: The Japan Society of Mechanical Engineers

    DOI： 10.1299/jsmemecjo.2010.6.0_435 　

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    Cold spray (CS) is a new coating technology for the production of high quality metallic based coatings. This process involves the deposition of metallic layers and structures from propelled fine powders using a high-speed gas jet flow without melting. Low-pressure type CS process, which consists of small and compact equipment, is expected to be used for on-site repairing application. In this work, the possibility of the repair for zinc plating by low-pressure type CS technique was discussed. We have successfully obtained thick (mm order) Zn deposition by low-pressure type CS technique. Moreover, from the investigation results of environmental resistant properties, it may be considered that CS technique have high possibility to apply the repairing application for the Zn plating.

  99. A SOCRATIC APPROACH TO SURFACE MODIFICATION: THE EXAMPLE OF THERMAL SPRAY Peer-reviewed

    M. Jeandin, D. Christoulis, F. Borit, M.H. Berger, S. Guetta, G. Rolland, V. Guipont, F. N’Guyen, D. Jeulin, E. Irissou, J.G. Legoux, C. Moreau, M. Nivard, L. Berthe, M. Boustie, W. Ludwig, K. Sakaguchi, Y. Ichikawa, K. Ogawa, S. Costil

    Surface Modification Technologies XXIV　2010

  100. Lasers and Thermal Spray Peer-reviewed

    M. Jeandin, D. Christoulis, F. Borit, M. H. Berger, S. Guetta, G. Rolland, V. Guipont, E. Irissou, J. G. Legoux, C. Moreau, M. Nivard, L. Berthe, M. Boustie, W. Ludwig, K. Sakaguchi, Y. Ichikawa, K. Ogawa, S. Costil

    THERMEC 2009, PTS 1-4　638-642　174-+　2010

    DOI： 10.4028/www.scientific.net/MSF.638-642.174 　

    ISSN： 0255-5476

  101. Influence of Particle Velocity on Adhesion of Cold-Sprayed Splats Peer-reviewed

    S. Guetta, M. H. Berger, F. Borit, V. Guipont, M. Jeandin, M. Boustie, Y. Ichikawa, K. Sakaguchi, K. Ogawa

    JOURNAL OF THERMAL SPRAY TECHNOLOGY　18　(3)　331-342　2009/09

    DOI： 10.1007/s11666-009-9327-0 　

    ISSN： 1059-9630

  102. コールドスプレー法による鋼粒子の成膜およびその特性評価 Peer-reviewed

    天尾 聡, 市川 裕士, 小川 和洋, 深沼 博隆

    溶射　46　(1)　1-5　2009/01/31

    Publisher:

    ISSN： 0916-6076

  103. Cold spraying combined to laser surface pre-treatment using PROTAL® Peer-reviewed

    D. K. Christoulis, S. Guetta, V. Guipont, M. H. Berger, M. Jeandin, M. Boustle, S. Costil, Y. Ichikawa, K. Ogawa, E. Irissou, J. G. Legoux, C. Moreau

    Proceedings of the International Thermal Spray Conference　1151-1156　2009

    DOI： 10.1361/cp2009itsc1151 　

  104. Characterization of Low-Pressure Cold-Sprayed Aluminum Coatings Peer-reviewed

    K. Ogawa, K. Ito, K. Ichimura, Y. Ichikawa, S. Ohno, N. Onda

    JOURNAL OF THERMAL SPRAY TECHNOLOGY　17　(5-6)　728-735　2008/12

    DOI： 10.1007/s11666-008-9254-5 　

    ISSN： 1059-9630

  105. Difference in High-Temperature Oxidation Behavior Between Cold-sprayed and Low-Pressure Plasma-Sprayed MCrAlY coating Peer-reviewed

    Yuji Ichikawa, Kazuhiro Ogawa, Tetsuo Shoji

    Proceedings of the 3rd International Conference on Material and Processing ICM&P　2008/10/07

  106. Deposition Mechanism of Cold Sprayed MCrAlY Coatings Focused on Nanostructure Peer-reviewed

    Y. Ichikawa, T. Miyazaki, K. Ogawa, T. Shoji, M. Jeandin

    Thermal Spray 2008: Crossing Borders　271-274　2008/06/03

  107. 1241 Evaluation of mechanical properties of carbon steel on cold spraying coating

    AMAO Satoshi, ICHIKAWA Yuji, OGAWA Kazuhiro, SHOJI Tetsuo, FUKANUMA Hirotaka

    The proceedings of the JSME annual meeting　2008　327-328　2008

    Publisher: The Japan Society of Mechanical Engineers

    DOI： 10.1299/jsmemecjo.2008.6.0_327 　

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    Carbon steels have been using in many structures, because the steels have excellent workability, affordability, and low price etc. However, it can be obtained corrosion damage or cracking on aging degradation. Cold spraying, which is a new maintenance technology, attracts attention recently. Though, it's difficult to make high carbon steel coatings by cold spraying, because high carbon steel includes much carbon. As a result, these are not many studies of cold sprayed carbon steels. In this study, dense and thick coatings of carbon steels by cold spraying was obtained, High carbon steel powder and mixed powder, which is mixed high carbon steel with mild steel powder were used. As a result, denser carbon steel coatings were obtained. And also, the coating hardness was higher than that of bulk steels.

  108. Mechanical Properties of Cold Sprayed Aluminum Coatings Peer-reviewed

    Kazuhiro Ogawa, Kenji Ichimura, Yuji Ichikawa, Tetsuo Shoji

    Surface Modification Technologies XXI　489-495　2007/09/24

  109. Deposition Mechanisms of Low Pressure Type Cold Sprayed Aluminum Coatings Peer-reviewed

    Yuji Ichikawa, Kiyohiro Ito, Kazuhiro Ogawa, Tetsuo Shoji

    Surface Modification Technologies XXI　497-506　2007/09/24

  110. Deposition Mechanisms of Cold Gas Dynamic Sprayed MCrAlY Coatings Peer-reviewed

    Y. Ichikawa, K. Sakaguchi, K. Ogawa, T. Shoji, S. Barradas, M. Jeandin, M. Boustie

    Thermal Spray 2007: Global Coating Solutions　54-56　2007/05/14

  111. Evaluation of adhesive strength of thermal-sprayed hydroxyapatite coatings using the LAser Shock Adhesion Test (LASAT) Peer-reviewed

    Yuji Ichikawa, Sophie Barradas, Francois Borit, Vincent Guipont, Michel Jeandin, Mariette Nivard, Laurent Berthe, Kazuhiro Ogawa, Tetsuo Shoji

    MATERIALS TRANSACTIONS　48　(4)　793-798　2007/04

    DOI： 10.2320/matertrans.48.793 　

    ISSN： 1345-9678

    eISSN： 1347-5320

  112. Mechanical and High Temperature Oxidation Properties of Thermal Barrier Coating with Kinetic Metallization Sprayed CoNiCrAlY Bond Coating Peer-reviewed

    Kazuhiro Ogawa, Takahiro Niki, Yuji Ichikawa, Dowon Seo, Tetsuo Shoji

    Proceedings of ATEM'07　2007

  113. Adhesion study of cold-sprayed CoNiCrAIY-Mo coating of inconel 625 using the LAser Shock Adhesion Test (LASAT) Peer-reviewed

    Y. Ichikawa, K. Ogawa, M. Nivard, L. Berthe, M. Boustie, M. Ducos, S. Barradas, M. Jeandin

    THERMEC 2006, PTS 1-5　539-543　1086-+　2007

    ISSN： 0255-5476

  114. Adhesion study of cold-sprayed CoNiCrAIY-Mo coating of inconel 625 using the LAser Shock Adhesion Test (LASAT) Peer-reviewed

    Y. Ichikawa, K. Ogawa, M. Nivard, L. Berthe, M. Boustie, M. Ducos, S. Barradas, M. Jeandin

    THERMEC 2006, PTS 1-5　539-543　(PART 2)　1086-+　2007

    ISSN： 0255-5476

  115. 205 Fundamental study on the cold dynamic gas sprayed MCrAlY coatings

    ICHIKAWA Yuji, SAKAGUCHI Kazuhiko, OGAWA Kazuhiro, JEANDIN Michel, DUCOS Maurice, SHOJI Tetsuo

    Proceedings of the 1992 Annual Meeting of JSME/MMD　2006　67-68　2006

    Publisher: The Japan Society of Mechanical Engineers

    DOI： 10.1299/jsmezairiki.2006.0_67 　

  116. Application of mechanical grinding and refractory ultrafine powders for thermal sprayed thermal barrier coatings Peer-reviewed

    Ogawa K, Ichikawa Y, Tanno M, Shoji T, Solonenko O.P, Cherepanov A.N, Poluboyarov V.A, Lapin A.E

    Proceedings of the 18th International Conference on Surface Modification Technologies　2006　45-51　2006

  117. Development of Highly Molten Chloride Corrosion Resistant Coatings Assisted by Mechano-chemical Reaction Peer-reviewed

    Y. Ichikawa, K. Ogawa, T. Shoji, O. P. Solonenko

    Thermal Spray 2005: Thermal Spray connects: Explore its surfacing potential!　710-714　2005/05/02

  118. Application of Mechanical Grinding and Refractory Ultrafine Powders for Thermal Sprayed Thermal Barrier Coatings Peer-reviewed

    Kazuhiro Ogawa, Yuji Ichikawa, Masatoshi Tanno, Tetsuo Shoji, Oleg P. Solonenko, Anatoly N. Cherepanov, Vladimir A. Poluboyarov, Andrei R. Lapin

    Surface Modification Technologies XVIII　45-51　2004/11/15

  119. Application of mechanically ground powder for thermal barrier coatings

    OGAWA Kazuhiro, Ichikawa Yuji, SHOJI Tetsuo

    The proceedings of the JSME annual meeting　2004　57-58　2004

    Publisher: The Japan Society of Mechanical Engineers

    DOI： 10.1299/jsmemecjo.2004.1.0_57 　

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    This paper describes a method for improving the bond strength of the interface between thermal barrier coatings and bond coatings. So far, in order to increase the bond strength and increase the formation of thermally grown oxide (TGO), Ce and Si were added to the bond coating material and a laser remelting technique for the bond coating were developed. As a result, the improved TBC had superior bond strength compared to conventional TBC. For the next step, to further improve coating properties such as oxidation or delamination resistance, a new coating system is suggested. In this study, high energy ball-milled powder was used for plasma spraying. Active nano particles were deposited on the surfaces of the powder. Using milled powder notably changed the thermodynamic properties. And as a result of high temperature exposure tests, it was show that the morphology of oxidation that formed at the interface was different compared to conventional coatings.

  120. Effects of Additional Elements to MCrAlY Coatings in a Molten Chloride Environment

    ICHIKAWA Yuji, OGAWA Kazuhiro, SHOJI Tetsuo

    The proceedings of the JSME annual meeting　2004　61-62　2004

    Publisher: The Japan Society of Mechanical Engineers

    DOI： 10.1299/jsmemecjo.2004.1.0_61 　

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    In refuse incineration power generation plants, increasing the combustion temperature directly improves plant efficiency. However, due to molten chloride corrosion, the combustion temperature cannot be increased. Consequently, protecting of components from molten chloride corrosion is necessary. In this study, MCrAlY coating was proposed as a protective film against molten chloride corrosion. And also the effects of adding elements to CoNiCrAlY were examined. Four kinds of specimens were prepared. One is a standard CoNiCrAlY coated specimen. The others are Mo blended CoNiCrAlY, mechanically milled CoNiCrAlY, and mechanically alloyed CoNiCrAlY with Mo specimens. These coatings were made by low pressure plasma spraying (LPPS). The specimens were exposed to molten chloride corrosion tests in a NaCl-KCl environment. The results show that mechanically alloyed CoNiCrAlY with Mo has excellent corrosion resistantance.

Show all ︎Show first 5

Misc. 50

  1. Special Issue Featuring Papers from the Asian Thermal Spray Conference (ATSC) 2024

    Kentaro Shinoda, Yuji Ichikawa, Hua Li, Hunkwan Park, Frank Gartner, Mohammed Shahien

    JOURNAL OF THERMAL SPRAY TECHNOLOGY　34　(8)　2996-2997　2025/12

    DOI： 10.1007/s11666-025-02122-0 　

    ISSN： 1059-9630

    eISSN： 1544-1016

  2. Thermal spraying without melting Invited

    Yuji ICHIKAWA

    Journal of the Society of Materials Science, Japan　72　(11)　844-844　2023/11/15

    Publisher: Society of Materials Science, Japan

    DOI： 10.2472/jsms.72.844 　

    ISSN： 0514-5163

    eISSN： 1880-7488

  3. Thermal Spray Technology White Paper (Japanese Translation)

    Thermal Spray Society, Affiliate of ASM international, International Exchange Committee, Japan Thermal, Spray Society

    Journal of Japan Thermal Spray Society　58　(4)　216-220　2021/10

  4. Recent Progress in Research on Mechanics of Materials by Young Researchers Preface

    Tetsuya Matsuda, Motoki Sakaguchi, Go Yamamoto, Yuji Ichikawa, Kosuke Takahashi, Mayu Muramatsu

    MECHANICAL ENGINEERING JOURNAL　7　(4)　2020

    DOI： 10.1299/mej.20preface02 　

    ISSN： 2187-9745

  5. Cold Sprayed GaN Coatings and Its Photocatlyst Property

    ZHOU Shaoyun, BERNARD Chrystelle, RAVI Kesavan, ICHIKAWA Yuji, OGAWA Kazuhiro

    日本溶射学会全国講演大会講演論文集　110th　2019

  6. Development of Cold Sprayed GaN Coatings

    ZHOU Shaoyun, BERNARD Chrystelle, RAVI Kesavan, ICHIKAWA Yuji, OGAWA Kazuhiro

    日本溶射学会全国講演大会講演論文集　108th　2018

  7. 若手科学者のネットワーク形成の現状について

    井藤彰

    学術の動向　22　(12)　12_54-12_61　2017/12

  8. 海外便り フランスでの単身研究生活

    市川 裕士

    保全学 = Maintenology　16　(3)　66-69　2017/10

    Publisher: 東京 : 日本保全学会

    ISSN： 1348-7795

  9. 144 Development of the Measurement method of the Strength of a Grain Boundary

    NAKANISHI Takahiro, ICHIKAWA Yuji, SUZUKI Ken, MIURA Hideo

    2016　(51)　85-86　2016

    Publisher: The Japan Society of Mechanical Engineers

  10. 163 Microstructure Change and Strength Properties of Thermal Barrier Coatings with Ce Content Bond Coats

    Horiuchi Shinnosuke, Hatta Shun, Ichikawa Yuji, Ogawa Kazuhiro, Oikawa Mitsuhiro, Yamazaki Hiroyuki, Tatsuki Tadashi

    2016　(51)　123-124　2016

    Publisher: The Japan Society of Mechanical Engineers

  11. 179 Establishment of the room temperature bonding technique for difficulty materials to bond by the cold sprayed intermediate layer

    OHTA Kohei, ICHIKAWA Yuji, SHIMATSU Takehito, OGAWA Kazuhiro

    2016　(51)　155-156　2016

    Publisher: The Japan Society of Mechanical Engineers

  12. プラズマ溶射施工耐環境コーティングの基礎物性評価

    柳岡遼太郎, 市川裕士, 小川和洋, 山崎泰広, 鈴木雅人, 佐藤和人

    日本溶射学会全国講演大会講演論文集　103rd　2016

  13. PS0020-281 Measurement of the Strength of a Grain Boundary in Electroplated Copper Thin-Film Interconnections

    NAKANISHI Takahiro, ICHIKAWA Yuji, SUZUKI Ken, MIURA Hideo

    2015　"PS0020-281-1"-"PS0020-281-2"　2015/11/21

    Publisher: The Japan Society of Mechanical Engineers

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    A tensile test method that can measure the strength of a grain boundary has been developed by applying a focused ion beam system. In order to investigate the effect of crystallinity of grain boundaries on their strength, an electron back-scatter diffraction method (EBSD) was employed for the quantitative characterization of grain boundaries. It was confirmed that the strength of grain boundaries with low crystallinity was much lower than that with high crystallinity.

  14. OS1210-391 Study on Micro-Scale Strength and Structural Evaluation for Bonding Interface of Solid State Bonded Materials

    ICHIKAWA Yuji, OGAWA Kazuhiro

    2015　"OS1210-391-1"-"OS1210-391-3"　2015/11/21

    Publisher: The Japan Society of Mechanical Engineers

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    Micro-scale interface strength evaluation technique is essential for solid-state bonded materials. Focus ion beam (FIB) micro strength test that using a micro cantilever enable an evaluation of micro-scale interface adhesion strength. However, this technique cannot measure the strength of specimen directly. This work discussed the possibility of strain measurement by combined use of image analysis. Measurement accuracy is depending on the cantilever design and testing condition, this experiment allows evaluating to a precision of 0.1 μm in displacement and 0.03 in strain. Moreover this technique reveals that the local and small area adhesion strength of cold-sprayed copper material is much higher than conventional and macro-scopic evaluation results. Plastic deformation cannot occurred in it Extremely small strain, which is lower than the measurement accuracy, was only observed.

  15. OS1212-308 Investigation of cold sprayed intermediate layer for improvement of joint strength of SAB

    OHTA Kohei, ICHIKAWA Yuji, SHIMATSU Takehito, OGAWA Kazuhiro

    2015　"OS1212-308-1"-"OS1212-308-3"　2015/11/21

    Publisher: The Japan Society of Mechanical Engineers

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    Aluminum and steel are difficult to bond with each other by surface activation bonding (SAB) technique, because it is easy for surface oxide to reform. On the other hand, copper is one of the easiest materials to bond by the SAB process. Using cold spray technique, it is possible to deposit Cu on Al and Steel substrates. This study considered whether cold sprayed Cu intermediate layer can improve the bondability of Al. Results of mechanical shear test indicated that cold sprayed Cu intermediate layer can be bonded by SAB and the bonding strength was higher than the strength of intermediate layer. Hence, the intermediate layer can improve the bondability of SAB fabricated joints.

  16. 428 Development of bond coat materials with Ce and Ce oxide for improvement of interface strength of thermal barrier coatings

    OGAWA Kazuhiro, HATTA Shun, ICHIKAWA Yuji, OIKAWA Mitsuhiro, TATSUKI Tadashi, YAMAZAKI Hiroyuki

    Materials and processing conference　2015　(23)　"428-1"-"428-2"　2015/11/14

    Publisher: The Japan Society of Mechanical Engineers

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    In our previous studies, it has reported that, by using a Ce added bond coat material, a wedge-like thermally grown oxide (TGO) was formed at the interface. As a result, delamination resistance of the TBC by four-point bending tests was improved. From this study, it was observed that wedge-like TGO grew towards the Ce oxide, which formed in the bond coating under high temperature conditions. Therefore, it is thought that the wedge-like TGO formed and grew because the Ce oxide became an oxygen ion diffusion channel. However, the wedge-like TGO formed under 1100 ℃ environment, which is higher than the operating temperatures of real plants. Therefore, the aim of this research is to suggest the formation of wedge-like TGO under 1100℃ and to elucidate the mechanism of formation and growth of wedge-like TGO at the interface between top coat and Ce and CeO_2 added bond coat.

  17. OS12-9 Development of Measurement Method of the Strength of a Grain Boundary(Mechanical properties of nano- and micro-materials-3,OS12 Mechanical properties of nano- and micro-materials,MICRO AND NANO MECHANICS)

    Nakanishi Takahiro, Kato Takeru, Ichikawa Yuji, Suzuki Ken, Miura Hideo

    Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics　2015　(14)　191-191　2015/10/04

    Publisher: The Japan Society of Mechanical Engineers

  18. J0430106 Aging variation of interface strength of high temperature exposed thermal barrier coatings with Ce content bond coats

    HORIUCHI Shinnosuke, HATTA Shun, ICHIKAWA Yuji, OGAWA Kazuhiro, Oikawa Mitsuhiro, Yamazaki Hiroyuki, Tatsuki Tadashi

    Mechanical Engineering Congress, Japan　2015　"J0430106-1"-"J0430106-5"　2015/09/13

    Publisher: The Japan Society of Mechanical Engineers

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    Thermal barrier coatings (TBC) is indispensable technique for advanced gas turbines. However, thermally grown oxide (TGO) is formed at the interface between top coating (TC) and bond coating (BC) of the TBC in a high temperature environment, and the TGO can induce delamination or spallation of the TBC. By Cerium (Ce) addition to conventional CoNiCrA1Y bond coat material, a wedge-like TGO is formed in a high temperature environment and improve delamination resistant properties drastically. In this study, several kind of TBC specimens with Ce added BCs, which exposed to 1100℃ in air for several exposure times, were prepared. Moreover, four-point bending tests were carried out under tensile and compressive loading conditions for TBC. In the case of tensile loading, delamination resistance property of TBC specimens with Ce added BCs were obviously higher than that of the TBC with conventional BC, and the delamination resistance property of TBC specimens with Ce added BCs were maintained up to 500 hours exposure. In the case of compressive loading, TBC specimens with Ce added BCs showed almost same strength as the TBC specimen with conventional BC.

  19. J0430105 Effects of chemical composition of bond coat materials and applied stress on thermally grown oxides growth of thermal barrier coatings

    HORIUCHI Shinnosuke, HATTA Shun, ICHIKAWA Yuji, OGAWA Kazuhiro

    Mechanical Engineering Congress, Japan　2014　"J0430105-1"-"J0430105-5"　2014/09/07

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    Thermal barrier coatings (TBC) is indispensable technique for advanced gas turbines. However, thermally grown oxide (TGO) is formed at the interface between a top and a bond coatings of the TBC in a high temperature environment, and the TGO can induce delamination or spallation of the TBC. By Cerium (Ce) addition to conventional CoNiCrAlY bond coat material, a wedge like TGO was produced in a high temperature environment and delamination resistant properties were improved drastically. But, the wedge like TGO can form more than 1100℃. This means the wedge like TGO cannot form and grow during turbine operation (temperature of 1^<st> rotating blade: approximately 900-1000℃). In this study, the effect of pre-oxidation and applied stress were considered for formation of the wedge like TGO. As a result, the wedge like TGO of TBC with the Ce added bond coat generated by pre-oxidation at 1100℃ for 20 h, and then growth of the wedge like TGO was conformed at 1000℃. Furthermore, in the case of a TBC with CoNiCrAl+Ce, the wedge like TGO can form at 900℃ by 156 MPa applied stress.

  20. 会議報告 ITSC2014参加報告

    市川 裕士

    溶射　51　(3)　110-112　2014/07/31

  21. OS1715 Study on Room Temperature Bonding Technique for Bulk Structural Materials by Means of the Surface Activation Phenomenon

    ICHIKAWA Yuji, HASHIMOTO Kentaro, SHIMATSU Takehito, OGAWA Kazuhiro

    2014　"OS1715-1"-"OS1715-3"　2014/07/19

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    A room temperature bonding technique namely Surface Activation Bonding (SAB) has studied on micro bonding application. In this technique, a stable oxide layer exists on a material surface is physically removed by Fast Atom Beam (FAB) irradiation in Ultra High Vacuum chamber, and then the bonding is accomplished by an atomic-order contact between two activated surfaces. In this study disscussed the posibility of lower cacuum conditino SAB process for large-scale structual materials. The SAB bonding tests using five kinds of nano-scale roughness mirror polished metals (Al, Fe, Ni, Zn and Cu). As the result, it was clarified that lower oxide formation and higher diffusion materials, Cu and Zn had good bondabilities. This result indicates that oxidation and diffusion are important factors of the bulk SAB. Moreover, the influence of exposure during SAB process was disscused. The bonding was successful up to 45 Pa・s exposured. This can be understood the bonding might be possible under lower vacuum condition. The possibility of the room temperature bonding for bulk structural materials was indicated.

  22. ATSC2014参加報告

    市川 裕士

    溶射　52　(1)　56-56　2014/03/18

  23. 164 Explication of the dominant factors of the strength of the cold-sprayed copper coating

    Watanabe Yusuke, Ichikawa Yuji, Suzuki Ken, Miura Hideo

    2014　(49)　125-126　2014

    Publisher: The Japan Society of Mechanical Engineers

  24. 夢（の続き）を語ろう

    市川 裕士

    溶射　50　(4)　197-198　2013/10/31

    ISSN： 0916-6076

  25. GS23 Study on Laser Used Thermal Shock Fatigue Test and Life Prediction

    ICHIKAWA Yuji, OHTA Shigeki, KAWAI Yutaka, ITO Katsumi, SHOJI Tetsuo

    2013　"GS23-1"-"GS23-3"　2013/10/12

    Publisher: The Japan Society of Mechanical Engineers

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    Laser used thermal shock fatigue testing method was established. In this test, acoustic emission technique allows detecting the number of cycle to crack initiation. Infrared thermography image monitoring results and computer-aided engineering (CAE) simulation figure out stress and strain distribution during fatigue testing. It was found that the number of cycle to crack initiation was depending on the difference in temperature condition during the test. Damage factor was introduced as a parameter to evaluate the cumulative fatigue damage during the test. Damage factor was defined as a strain-energy of micro region in each cycle test. When cumulative damage factor exceeds critical condition, fatigue crack initiation was observed. The critical condition may be described with equivalent plastic strain. Increasing cooling rate in thermal cycle, induced stress and strain were larger. Accompanying this change is an increasing damage factor, and the fatigue life is shorter. This study suggests a possible beneficial effect of life prediction with damage factor.

  26. OS1106 Strength of Particle Interface in Cold-Sprayed Copper Deposits

    WATANABE Yusuke, ICHKAWA Yuji, OGAWA Kazuhiro, MIURA Hideo

    2013　"OS1106-1"-"OS1106-3"　2013/10/12

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    Cold-spray is a new deposit formation method that is based on the high-velocity impinging of small solid particles on a substrate. Cold-spray technique allows producing a thick deposit without heat influence. The previous research shows cold-sprayed thick deposit has unique mechanical properties. The strength of cold-sprayed deposit is higher than that of bulk, however, it indicates brittle-like fracture. The crack is propagated along particle interface. Brittle-like fracture is not suitable for structure material. In order to use cold-sprayed deposits for structure material with reliability design, the reason of brittle-like fracture must be cleared. Purpose of this study is evaluation of the micro-texture of the cold-sprayed copper deposit by SEM (Scanning Electron Microscope) and EBSD (Electron Back-Scatter Diffraction) method. EBSD method was applied to the evaluation of the crystallinity of the deposits. It was found that the low crystallinity grain boundaries exist around the particle interface. The low crystallinity grain boundaries cause brittle-like fracture in cold-sprayed deposit.

  27. J043022 Fundamental Study on Microstructural Control of Cold-Sprayed Copper Coating

    ICHIKAWA Yuji, WATANBE Yusuke, NONAKA Isamu, MIURA Hideo

    Mechanical Engineering Congress, Japan　2013　"J043022-1"-"J043022-5"　2013/09/08

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    The cold spray technique is a new coating technology that is based on the high velocity impinging of small solid particle on the substrate. This technique allows producing a thick deposit with less heat influence. The previous research shows cold-sprayed thick deposit and coatings have unique mechanical properties. Since this material has stacked structure of highly plastic deformed feedstock particles, it indicates an anisotropic microstructure and mechanical properties. This unique material indicates brittle-like fracture that a crack is propagated in particle-to-particle interface. Therefore, structural control technique must be established to become practical application of cold-sprayed coatings. Heat treatment is one of the effective ways to control the microstructure. This study discusses the effect of heat treatment on the texture changing. The texture evaluations were carried out by two different scale methods. One is traditional XRD pole figure technique and the other is SEM-EBSD micro-scale evaluation. From those investigations results, heat treatment has only effect on grain size changing. The micro scale and macro scale texture were not changed by heat treatment. Therefore, the mechanical property of cold-sprayed coating is strongly corresponding to the interface strength of particle-to-particle. The texture is only a small influence on mechanical properties. The established structural control technique requires the interface strength control of particle-to-particle.

  28. Report on International Thermal Spray Conference & Exposition 2013

    ICHIKAWA Yuji

    50　(3)　156-158　2013/07/31

    Publisher: 日本溶射学会

    ISSN： 0916-6076

  29. ITSC2013参加報告

    市川 裕士

    溶射　50　(3)　156-158　2013/07/31

  30. Study on microstructural evaluation method for cold sprayed copper coating

    ICHIKAWA Yuji, WATANABE Yusuke, NONAKA Isamu, MIURA Hideo

    97　51-52　2013/06/20

  31. 153 Evaluation of the microstructure around the particle interface in the cold-sprayed copper deposit

    Watanabe Yusuke, Ichikawa Yuji, Nonaka Isamu, Miura Hideo

    2013　(48)　108-109　2013/03/15

    Publisher: The Japan Society of Mechanical Engineers

  32. Micro-structural evaluation of the particle interface in the cold-sprayed copper deposit

    WATANABE Yusuke, ICHIKAWA Yuji, NONAKA Isamu, MIURA Hideo

    96　139-140　2012/11/26

  33. OS2118 Very High Cycle Fatigue of Modified 9Cr-1Mo Steel

    MATSUMORI Yoshiaki, ICHIKAWA Yuji, NONAKA Isamu, MIURA Hideo

    2012　"OS2118-1"-"OS2118-2"　2012/09/22

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    Since fatigue strength at very high cycles has been found to decrease drastically in some high-strength steel, it has become very important to establish a very high cycle fatigue test using ultrasonic loading because of its reasonable short test time. However, there are two issues: self-heating of specimen and load frequency effect. It was confirmed that the temperature of a specimen increased with the square of the applied amplitude of displacement. The combination of the forced air cooling and intermittent loading was effective for minimizing the increase of the specimen temperature within 50℃. Load frequency effect was observed in the ultrasonic fatigue test of Mod.9Cr-1Mo steel.

  34. S044024 Evaluation of the microstructure around the particle interface in the cold-sprayed copper deposit

    Watanabe Yusuke, Ichikawa Yuji, Nonaka Isamu, Miura Hideo

    Mechanical Engineering Congress, Japan　2012　"S044024-1"-"S044024-4"　2012/09/09

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    A cold-spray (CS) method is a new technology which collides fine particles with a solid surface and make a deposit on it. The CS method can produce a thick deposit with little heat affect. Although the strength of this thick deposit is high comparing with bulk material, it often shows brittle fracture. The brittle fracture was found to occur at the interface between the deposited particles. The authors, therefore, observed the difference in the micro texture around the grain boundaries in each particle and that around the interface between the deposited particles in the cold-sprayed copper deposit by an EBSD (Electron backscatter diffraction) method. It was found that the average grain size in the deposited particles was much smaller than that in the particles before deposition. This fine grain size is the reason for the high strength of the deposit. However, there is no difference in the misorientation angle distribution between them. Thus, the microstructure around the interface between the deposited particles should be analyzed more in detail.

  35. Study on heat tradability of cold-sprayed copper coatings

    ICHIKAWA Yuji, WATANABE Yusuke, NONAKA Isamu, MIURA Hideo

    95　17-18　2012/06/18

  36. 148 Very high cyde fatigue of modified 9Cr-1Mo steel

    Matsumori Yoshiaki, Ichikawa Yuji, Nonaka Isamu, Miura Hideo

    2012　(47)　102-103　2012/03/13

    Publisher: The Japan Society of Mechanical Engineers

  37. 226 High Cycle Fatigue Properties of Modified 9Cr-1Mo steel at Elevated Temperatures

    Nemoto Jumpei, Ichikawa Yuji, Nonaka Isamu, Miura Hideo

    2012　(47)　258-259　2012/03/13

    Publisher: The Japan Society of Mechanical Engineers

  38. 412 Estimation of High Cycle Fatigue Life at Elevated Temperature for Mod.9Cr-1Mo Steel

    NONAKA Isamu, NEMOTO Jumpei, ICHIKAWA Yuji, MIURA Hideo

    61　99-100　2012

    Publisher: 日本材料学会

  39. Effect of Heat Treatment on Mechanical Properties of Cold-Sprayed Copper Deposit

    WATANABE Yusuke, ICHIKAWA Yuji, NONAKA Isamu, MIURA Hideo

    94　23-24　2011/11/14

  40. Microstructure and Mechanical Characterization of Cold-Sprayed Copper Deposit

    ICHIKAWA Yuji, TANEMURA Shun, NONAKA Isamu

    93　39-40　2011/06/06

  41. 190 Effect of Frequency on High Cycle Fatigue Strength of S38C Carbon Steel

    SETOWAKI Sota, ICHIKAWA Yuji, NONAKA Isamu

    2011　(46)　182-183　2011/03/15

    Publisher: The Japan Society of Mechanical Engineers

  42. 516 Effect of Induction Hardening on Fatigue Properties of S38C Carbon Steel

    SETOWAKI Sota, ICHIKAWA Yuji, NONAKA Isamu

    59　369-370　2010

    Publisher: 日本材料学会

  43. 夢を語ろう「溶射と私」

    市川 裕士

    溶射　45　(4)　115-116　2008/10/31

    ISSN： 0916-6076

  44. Meet our new colleagues

    Yuji Ichikawa

    Journal of Thermal Spray Tecnology　17　(4)　454-455　2008/04/01

  45. コールドスプレ―MCrAIY コーティングの成膜メカニズムの検討

    市川裕士

    溶射技術　27　(4)　83-86　2008

  46. 323 Particle deposition behavior of low pressure type cold spraying

    ICHIKAWA Yuji, ITO Kiyohiro, OGAWA Kazuhiro, SHOJI Tetsuo

    2007　196-197　2007/10/24

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    The principle of cold spray is that the solid particle impacts and deposits on the substrate without melting and phase transformation. However, the cold spray deposition mechanism has not been clear yet. It is considered that the substrate surface condition has influence on the deposition behavior of cold spraying, and also surface condition may be changed by a large number of particle impinging. Several surface parameters such as surface roughness, hardness, temperature and micro structure are changed within particle impacts. In this study, in order to determine the most affective factor of cold spray deposition, the several times traversed and sprayed specimens were prepared. The surface activation was controlled by the interval time between traverses. The number of deposited particles on the substrate at the several interval times was investigated. From the results, it was confirmed that the surface activation is more important factor for cold spray deposition.

  47. 319 Spraying Conditions and Coating Properties of Cold Sprayed Coatings

    OGAWA Kazuhiro, ICHIKAWA Yuji

    2007　188-189　2007/10/24

    Publisher: The Japan Society of Mechanical Engineers

  48. Surface condition influence on low-pressure type cold spray deposition

    85　24-25　2007/05/27

  49. Evaluation of Mechanical Properties of Pure Aluminum Coatings Sprayed by Low Pressure Type Cold Spray Technique

    OGAWA Kazuhiro, ICHIMURA Kenji, ICHIKAWA Yuji, SHOJI Tetsuo

    85　40-41　2007/05/27

  50. 402 Corrosion Property of Thermal Sprayed MCrAIY Coatings in a Molten Chloride Environment

    ICHIKAWA Yuji, OGAWA Kazuhiro, SHOJI Tetsuo

    2004　(39)　134-135　2004/03/13

    Publisher: The Japan Society of Mechanical Engineers

Show all ︎Show first 5

Books and Other Publications 1

  1. The New Particle Deposition Coating Technologies -Cold Spray and Aerosol Deposition -

    2023/09

    ISBN: 9784781317502

Presentations 271

  1. Dynamics of Impact-Induced Bonding: Insights from Single-Particle Impact Experiments and Site-Specific Micromechanical Analysis Invited

    Yuji Ichikawa

    ATSC2025: 14th Asian Thermal Spray Conference & Expo　2025/11/17

  2. Beyond Critical Velocity: Unveiling the Dynamics of Impact Bonding for Enhanced Cold Spray Deposition Invited

    Yuji Ichikawa, Qi Tang, David Veysse, Hamid Assadi, Mostafa Hassani

    ITSC2025: International Thermal Spray Conference and Exposition　2025/05/05

  3. 低圧コールドスプレー法で作製したアルミニウム合金積層体に及ぼす混合粒子の効果

    舟木 大河, 齋藤 宏輝, 市川 裕士, 小川 和洋

    （一社）日本溶射学会第119回（2024年度春季）全国講演大会　2024/07/03

  4. 固相粒子衝突現象を活用した積層造形技術 Invited

    市川裕士

    一般社団法人 粉体粉末冶金協会 2024年度春季大会 (第 133 回講演大会)　2024/05/21

  5. Studies of Particle Deformation and Microstructure Evolution Using High Strain Rate Particle Compression Test

    Gil Ju Na, Arata Hashizume, Qi Tang, Mostafa Hassani, Yuji Ichikawa

    ITSC 2024 International thermal spray conference and exposition　2024/05/01

  6. Bond Coat Material for Cold Sprayed Polymer Film Formation

    Jingze Sun, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    ATSC2025: 14th Asian Thermal Spray Conference & Expo　2025/11/17

  7. Adhesion and Lightning Strike Resistance of Cold-Sprayed Aluminum Repair Coatings on CFRTP

    Wataru Kai, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    ATSC2025: 14th Asian Thermal Spray Conference & Expo　2025/11/17

  8. Dynamic Flattening and Microstructural Changes in Aluminum Particles under High Strain Rates

    Gil-Ju Na, Mostafa Hassani, Kazuhiro Ogawa, Hiroki Saito, Yuji Ichikawa

    ATSC2025: 14th Asian Thermal Spray Conference & Expo　2025/11/17

  9. Long-term mechanical degradation characteristics of electrolyte in Solid Oxide Cells

    Junya TANAKA, Chieko KUJI, Kazuhisa SATO, Yuji ICHIKAWA

    2025/11/11

  10. 金属被覆熱可塑性CFRPの雷撃損傷評価および補修成膜の検討

    齋藤宏輝, 甲斐亘, 市川裕士, 小川和洋

    日本溶射学会第121回(2025年度春季)全国講演大会　2025/06/17

  11. 新規手法を用いたバインダレスリチウムイオン電池電極の開発

    古川祐剛, 小川和洋, 市川裕士, 齋藤宏輝, 中島隆志, 岡田宣宏, 武田幸三

    日本材料学会第74回学術講演会　2025/05/31

  12. 超高張力鋼板アーク溶接継手の疲労強度に及ぼす支配因子

    山口尚記, 市川裕士, 小川和洋, 塩崎毅, 玉井良

    日本材料学会第74回学術講演会　2025/05/31

  13. LIPIT を用いた衝撃誘起金属接合現象に関する研究 Invited

    市川裕士

    日本材料学会関東支部および衝撃部門委員会 講演会 「マイクロ粒子の高速衝突試験の新展開」　2025/05/27

  14. Repair of lightning strike protection coatings on thermoplastic CFRP using low-pressure cold spray

    Hiroki Saito, Wataru Kai, Yuji Ichikawa, Kazuhiro Ogawa

    ITSC2025: International Thermal Spray Coference and Exposition　2025/05/07

  15. Strength of Microparticle Impact-Induced Metallic Bonds

    Qi Tang, David Veysse, Hamid Assadi, Yuji Ichikawa, Mostafa Hassani

    TMS 154th Anual Meeting & Exhibition　2025/03/26

  16. 低圧コールドスプレー金属積層造形におけるレーザーアシストの効果

    舟木 大河, 齋藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会東北支部第60期総会・講演会　2025/03/17

  17. アンモニア燃焼ガスタービン実現に向けた遮熱コーティングの劣化機構解明

    矢澤佐千生, 齋藤宏輝, 市川裕士, 小川和洋

    日本機械学会第58回東北学生会卒業研究発表講演会　2025/03/07

  18. 表面活性化接合法による金属樹脂常温接合

    伊藤鈴, 齋藤宏輝, 市川裕士, 小川和洋

    日本機械学会第55回東北学生会卒業研究発表講演会　2025/03/07

  19. 水素ガスタービン用TBCの経年劣化機構

    伊藤明純, 小川 和洋, 市川 裕士, 齋藤宏輝

    日本機械学会第55回東北学生会卒業研究発表講演会　2025/03/07

  20. FIB-DIC リングコア法による残留応力評価の測定精度検証

    大久保芽衣, 山村樹生, 齋藤宏輝, 市川裕士, 小川和洋, 中山歩美, 小林大輔

    日本機械学会第55回東北学生会卒業研究発表講演会　2025/03/07

  21. Low Temperature Fabrication of Sm-Fe-N Films by Cold Spray Technique and Their Structure and Magnetic Properties

    Yuki Sone, Eiji Watanabe, Shin Saito, Yuji Ichikawa, Hiroki Saito, Kazuhiro Ogawa, Tomoyuki Ogawa

    Asian Thermal Spray Conference (ATSC2024)　2024/12/12

  22. Coating Thickness Dependence on Lightning Damage Reduction for Aluminum Coated CFRP

    Wataru Kai, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    Asian Thermal Spray Conference (ATSC2024)　2024/12/13

  23. High-Packing Density Fabrication of the Nanoparticles using the Cold-spray Technique

    Eiji Watanabe, Tomoyuki Ogawa, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    Asian Thermal Spray Conference (ATSC2024)　2024/12/12

  24. Evaluating Interface Strength and Crack Propagation Behavior of Thermal Barrier Coatings in Hydrogen Environments

    Jiyuan Cui, Hiroki Saito, Yuji Ichikawa, Makoto Nakashima, Atsushi Suzuki, Fumio Sato, Kazuhiro Ogawa

    Asian Thermal Spray Conference (ATSC2024)　2024/12/11

  25. Flattening Behavior and Microstructure Evolution in Aluminum Particles Under High Strain Rates

    Gil Ju Na, Qi Tang, Mostafa Hassani, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    Asian Thermal Spray Conference (ATSC2024)　2024/12/12

  26. The Role of Particle Deformation in Impact-Induced Bonding Phenomena

    Yuji Ichikawa

    10th Tsukuba International Coating Symposium (TICS 10)　2024/12/09

  27. Evaluation of Micro Crack Initiation and Propagation Behavior in Ultra High Strength Steel with Artificial Defects

    Jui YAMAMURA, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA, Naoki YAMAGUCHI

    14th Asia-Pacific Conference on Fracture and Strength (APCFS 2024)　2024/11/25

  28. Establishment of Repair Technology and Assurance of Strength Reliability in Piping Cracks and Holes by Low-Pressure Cold Spray

    Taiga FUNAKI, Kodai SHIGIHARA, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA

    14th Asia-Pacific Conference on Fracture and Strength (APCFS 2024)　2024/11/26

  29. 低圧コールドスプレー法による配管穴あき部の直接補修メカニズムの検討

    齋藤 宏輝, 鴫原 航大, 市川 裕士, 小川 和洋

    （一社）日本溶射学会 第120回（2024年度秋季）全国講演大会　2024/11/11

  30. 酸化物を被覆した金属微粒子の圧縮変形挙動

    市川裕士, Qi Tang, Mostafa Hassani

    （一社）日本溶射学会 第120回（2024年度秋季）全国講演大会　2024/11/11

  31. Formation of Lightning-Resistant Metal Coatings on CFRP by Cold Spray Method and Enhancement of Metal Coating Conductivity through Laser Treatment

    Wataru KAI, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA

    2024/11/03

  32. Effect of Metallic Interlayer Pretreatment on Polyimide Coating by Cold Spray Technique

    Takumi ITO, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA, Yasuyuki NITTA, Keisuke ANDO

    2024/11/03

  33. 固相粒子を用いた新しい溶射法とその応用 Invited

    市川裕士

    次世代耐熱複合材料及びコーティングに関する研究会 2024 年度ワークショップ セラミックスの材料プロセスと解析の最前線　2024/10/29

  34. Surface Oxide Fracture and Compressive Deformation Behavior of Thin Oxide Covered Metallic Microparticles Invited

    Yuji Ichikawa, Qi Tang, Mostafa Hassani

    International Workshops on Advances in Computational Mechanics (IWACOM-IV)　2024/09/20

  35. INFLUENCE FACTORS ON FATIGUE STRENGTH OF ARC-WELDED JOINTS USING ULTRA-HIGH STRENGTH STEEL SHEETS AND ITS IMPROVING METHODS

    Naoki YAMAGUCHI, Tsuyoshi SHIOZAKI, Yoshikiyo TAMAI, Yuji ICHIKAWA, Kazuhiro OGAWA

    FATIGUE 2024　2024/06/20

  36. 次世代航空機動翼材料の飛翔粒子衝突における衝撃挙 動評価手法の開発

    藏重湧, 齋藤宏輝, 市川裕士, 小川和洋

    日本材料学会第 73期学術講演会　2024/05/25

  37. Ni 基超合金の微小領域強度評価

    山村樹生, 齋藤宏輝, 市川裕士, 小川和洋, 中山歩美, 小林大輔

    日本材料学会第 73期学術講演会　2024/05/25

  38. 固体粒子の高速衝突を活用した溶かさない溶射技術 Invited

    市川裕士

    日本材料学会 疲労部門委員会 公開部門委員会 表面のケモメカニカル効果と疲労強度　2024/05/24

  39. Evaluation of lightning resistance property of thermoplastic CFRP metallized by low-pressure cold spray

    H. Saito, K. Ogawa, W. Kai, T. Funaki, Y. Ichikawa

    ITSC 2024 International thermal spray conference and exposition　2024/05/01

  40. 衝撃ナノインデンテーション試験による単結晶材料の高ひずみ速度変形挙動と微視組織形成過程

    橋爪 新, 齋藤 宏輝, Chrystelle Bernard, 市川 裕士, 小川 和洋

    日本機械学会東北支部第59期総会・講演会　2024/03/15

  41. 固相粒子の衝突を活用した表面改質 Invited

    市川裕士

    第１回表面改質学生シンポジウム　2023/12/08

  42. 固相粒子接合界面のナノメカノケミストリー Invited

    市川裕士

    JSTさきがけ「ナノ力学」公開シンポジウム　2023/11/25

  43. Deformation behavior analysis of oxide-coated metal particles

    2023/11/21

  44. Understanding of Cold Spray Particle Deposition Phenomena by Single Particle Experiments Invited

    Yuji Ichikawa

    12th Asian Thermal Spray Conference and Expo (ATSC2023)　2023/11/03

  45. Manufacture of Niobium Superconducting RF Cavities with Cold Spray

    Keita SHIMADA, Masashi Yamanaka, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA

    2023/09/28

  46. 低圧コールドスプレー法によるポリイミド成膜とその成膜効率向上

    齋藤 宏輝, 今井 佑大, 市川 裕士, 小川 和洋, 安藤 圭理

    日本機械学会 M&M2023 材料力学カンファレンス　2023/09/28

  47. 低圧コールドスプレー法による熱可塑性CFRP上への成膜に及ぼすガス温度および粒子径の影響

    齋藤宏輝, 泉安津志, 蒙兪先(東北大, 市川裕士, 小川和洋

    日本機械学会 材料力学部門 計算力学部門 M&M・CMD 若手シンポジウム 2023　2023/08/09

  48. 超高強度鋼板におけるアーク溶接継手の疲労強度の支配因子とその改善法

    山口尚記, 塩崎毅, 玉井良清, 市川裕士, 小川和洋

    日本機械学会 材料力学部門 計算力学部門 M&M・CMD 若手シンポジウム 2023　2023/08/08

  49. アルミニウム合金のコールドスプレー積層造形に関する基礎的検討

    舟木 大河, 齋藤 宏輝, 市川 裕士, 小川 和洋, 太期 雄三, 桑原 孝介

    日本溶射学会 第117回 (2023年度春季)全国講演大会　2023/06/16

  50. 低圧コールドスプレー法による水環境中でのSn-Zn成膜

    蒙 兪先, 齋藤宏輝, ベルナール クリステル, 市川裕士, 小川 和洋

    日本溶射学会 第117回 (2023年度春季)全国講演大会　2023/06/16

  51. 雷撃保護を目的とした低圧コールドスプレー法によるCFRPのメタライゼーション Invited

    齋藤 宏輝, 泉 安津志, 鈴木 成高, 市川 裕士, 小川 和洋, 石田 翔馬, 鈴木 康司, 成瀬 恵寛, 西崎 昭彦

    日本溶射学会 第117回 (2023年度春季)全国講演大会　2023/06/15

  52. 浸炭処理付与鉄鋼材料の破壊起点に着目した超高サ イクル疲労破壊機構

    田代 陽大, 齋藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会 東北学生会 第 53 回学生員卒業研究発表講演会　2023/03/07

  53. コールドスプレー法を用いた積層造形技術の開発に 関する基礎的検討

    舟木 大河, 橋本 篤, 齋藤 宏 輝, 市川 裕士, 小川 和洋

    日本機械学会 東北学生会 第 53 回学生員卒業研究発表講演会　2023/03/07

  54. Advanced Interfacial Microstructure Characterization for Understanding Cold Spray Deposition Invited

    Yuji Ichikawa

    9th Tsukuba International Coating Symposium (TICS 9)　2022/12/12

  55. Evaluation of Dynamic Damage Behavior for Yb Silicate Environmental Barrier Coatings using Single Particle Impact Testing System and Its Self-Healing Property

    Kent MITANI, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA, Naoki OKAMOTO, Takaya MASUDA

    2022/11/25

  56. コールドスプレー法による高分子成膜に及ぼす針状無機フィラー及びフュームドナノアルミナ添 加の効果

    安藤 圭理, 山本 義則, 鴇崎 晋也, 今井 佑大, 齋藤 宏輝, 市川 裕士, 小川 和洋

    日本溶射学会第116回 (2022年度秋季)全国講演大会　2022/11/18

  57. コールドスプレーポリマー成膜に及ぼすナノアルミナ添加量の影響

    孫 競択, 齋藤, 宏輝, ベルナール クリステル, 市川, 裕士, 小川 和洋

    日本溶射学会第116回 (2022年度秋季)全国講演大会　2022/11/17

  58. Fundamental Study on Strain Rate Dependence of Local Mechanical Properties by Impact Nano-Indentation Method

    2022/09/27

  59. Non-melting additive manufacturing (AM) pioneered by the knowledge of mechanics Invited

    Yuji Ichikawa

    The 4th Indian Sakura Science Club Alumni Meeting Promotion of Indo-Japanese intercultural exchange programs for catalyzing greater advancements in Science and Technology　2022/09/17

  60. Effect of Mixed Particles on Zinc Deposition by Low Pressure Cold Spray

    Tomonori Hatori, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Masaki Hirano

    2022/09/14

  61. Effect of Laser Pre-treatment of Substrate Surface on Cold-sprayed Copper Deposition

    Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    2022/09/04

  62. 低圧コールドスプレー法による CFRP上への高速金属成膜 Invited

    齋藤宏輝, 泉安津志, 鈴木成高, 市川裕士, 小川和洋, 石田翔馬, 鈴木康司, 成瀬恵寛, 西崎昭彦

    溶接学会2022年度秋季全国大会フォーラム「極短時間接合・加工の最前線」　2022/09/09

  63. コールドスプレー法における衝突粒子の変形挙動と固相接合

    市川 裕士, 齋藤 宏輝, C.A. Bernar, 小川和洋

    一般社団法人 溶接学会 東北支部 第34回溶接・接合研究会　2022/07/05

  64. Oxidation Behavior of Yb silicate Environmental Barrier Coatings

    K. MITANI, H. SAITO, Y. ICHIKAWA, K. OGAWA, T. MASUDA, N. OKAMOTO

    CAMS2022 The7th Conference of the Combined Australian Materials Societies　2022/06/03

  65. Comparison of Degradation Behavior of Thermal Barrier Coatings under High-Temperature Oxidation and Reduction Environments

    Yang XIE, Hiroki SAITO, Yuji ICHKAWA, Kazuhisa SATO, Kazuhiro OGAWA

    The 71th JSMS Annual Meetings　2022/05/30

  66. 表面活性化接合法による金属/セラミック異種接合に関する基礎的検討

    木村 乃愛, 渡邊 航平, 齋藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会 東北学生会 第52回学生員卒業研究発表講演会　2022/03/08

  67. TiAl 合金の高温酸化挙動とその高速衝撃特性

    鴫原 航大, 齋藤 宏輝, 市川 裕士, 小川 和 洋, 大田 祐太朗, 榊原 洋平

    日本機械学会 東北学生会 第52回学生員卒業研究発表講演会　2022/03/08

  68. 単一微粒子圧縮変形挙動のひずみ速度依存性に関する基礎的研究

    橋爪 新, Chrystelle Bernard, 齋藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会 東北学生会 第52回学生員卒業研究発表講演会　2022/03/08

  69. 低圧コールドスプレー法を用いた酸化物系セラミックス機能性皮膜の開発とその成膜メカニズムの検討

    高橋 唯人, 齋藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会 東北学生会 第52回学生員卒業研究発表講演会　2022/03/08

  70. 微細結晶化されたコールドスプレー純鉄皮膜の機械的特性

    伊藤 潔洋, 市川 裕士

    日本溶射学会 第114回（2021年度秋季）全国講演大会　2021/11/11

  71. Repair of Water Leaked Pipes by Low-Pressure Cold Spray Technique

    2021/11/12

  72. 低圧コールドスプレー法によるCFRP上への金属皮膜の形成とその成膜メカニズムの考察

    泉 安津志, 海老原 寛明, 斎藤 宏輝, 市川 裕士, 小川 和洋, 石田 翔馬, 鈴木 康, 司 成瀬 恵寛, 西崎 昭彦

    日本溶射学会 第114回（2021年度秋季）全国講演大会　2021/11/11

  73. 低圧コールドスプレーによる銅成膜に及ぼす基材低温プラズマ処理の影響

    齋藤寛輝, 市川裕士, 小川和洋

    日本溶射学会 第114回（2021年度秋季）全国講演大会　2021/11/10

  74. 固相粒子接合界面のナノメカノケミストリー Invited

    市川裕士

    日本機械学会 M&M 2021 材料力学カンファレンス　2021/09/16

  75. 低圧コールドスプレー亜鉛コーティングによる腐食鉄鋼構造物の耐食性再生

    羽鳥 友雅, 斎藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会 M&M 2021 材料力学カンファレンス　2021/09/15

  76. 曲げ加工を施した熱延鋼板の微視組織と微小領域における機械的特性変化

    菊地 航平, 斎藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会 M&M 2021 材料力学カンファレンス　2021/09/15

  77. Effect of Intermediate Layer on Surface Activated Bonding for Al Alloys / Steels

    Kohei WATANABE, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA

    2021/09/06

  78. Influence of Substrate Oxidation State on Laser-assisted Cold Spray Coating

    HirokiSAITO, YujiICHIKAWA, KazuhiroOGAWA

    2021/09/06

  79. Effect of Laser Texturing and Ti Bond Coat for Film Forming Property of Cold Sprayed Fluoropolymer Coatings

    Yuya KANEKO, Wesley L. SULEN, Chrystelle A. BERNARD, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA

    2021/09/06

  80. Study of Repair for Corroded Steel Structures by Zinc Corrosion Resistant Coatings Using Low Pressure Cold Spray Method

    Tomonori Hatori, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    2021 JTSS Spring Meeting　2021/06/17

  81. Progressive Improvement in Deposition Efficiency for Cold Sprayed Fluoropolymer Coatings

    Yuya Kaneko, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    2021 JTSS Spring Meeting　2021/06/17

  82. Fundamental Study on Particle Size and SiC content on Self-Healing Property of Environmental Barrier Coatings

    Kent Mitani, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa, Takuya Masuda, Naoki Okamoto

    2021 JTSS Spring Meeting　2021/06/17

  83. Design of cold spray nozzles for inner wall polymer coating fabrication

    Yuxian Meng, Hiroki Saito, Chrystelle A. Bernard, Yuji Ichikawa, Kazuhiro Ogawa

    ITSC2021 International Thermal Spray Conference and Exposition　2021/05/27

  84. Cold spray Sn coating on the carbon fiber reinforced polymer

    Jiayu Sun, Kenta Yamanaka, Akihiko Chiba, Yuji Ichikawa, Hiroki Saito, Kazuhiro Ogawa

    ITSC2021 International Thermal Spray Conference and Exposition　2021/05/26

  85. Extremely high deposition efficiency of robust and super-hydrophobic fluoropolymer coating on a metallic intermediate layer by low-pressure cold spray

    Wesley Lock Sulen, Hiroki Saito, Chrystelle A. Bernard, Yuji Ichikawa, Kazuhiro Ogawa

    ITSC2021 International Thermal Spray Conference and Exposition　2021/05/26

  86. Effects of substrate pre-treatment on metal coating fabricated by low pressure cold spray

    Hiroki Saito, Hiroaki Ebihara, Yuji Ichikawa, Kazuhiro Ogawa

    ITSC2021 International Thermal Spray Conference and Exposition　2021/05/25

  87. Influence of the Low Pressure Cold Spray Operation Parameters on Coating Properties in Metallization of Ceramic Substrates Using Copper and Aluminum Composite Powder

    Minjae Yu, Hiroki Saito, Chrystelle A. Bernard, Yuji Ichikawa, Kazuhiro Ogawa

    ITSC2021 International Thermal Spray Conference and Exposition　2021/05/24

  88. Improvement of Fatigue Strength for Arc-Welded Joints of Ultra-High Strength Steel (UHSS) Sheets by Cold Spray Technique

    Naoki Yamaguchi, Tsuyoshi Shiozaki, Yoshiyuki Tamai, Kanji Okuda, Yuji Ichikawa, Kazuhiro Ogawa

    ITSC2021 International Thermal Spray Conference and Exposition　2021/05/24

  89. Ti ボンドコートを用いたコールドスプレー法 によるポリイミド固相成膜技術の開発

    今井 佑大, 齋藤 宏輝, 市川 裕士, 小 川和洋, 安藤圭理, 山本義則, 寺井護

    日本機械学会東北学生会 第 51 回学生員卒業研究発表講演会　2021/03/09

  90. 低圧コールドスプレー法を用いた腐食鉄鋼構 造物の耐食性再生

    羽鳥 友雅, 齋 藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会東北学生会 第 51 回学生員卒業研究発表講演会　2021/03/09

  91. 耐環境コーティングの自己治癒性と組織安定性に及ぼすSiC 添加量の検討

    三谷 健斗, 齋藤 宏輝, 市川 裕士, 小川 和洋, 益田 敬也

    日本機械学会東北学生会 第 51 回学生員卒業研究発表講演会　2021/03/09

  92. 塑性加工を受けた高張力鋼の微視組織と局所 強度

    菊地 航平, 斎藤宏輝, 小川 和洋, 市川 裕士

    日本機械学会東北学生会 第 51 回学生員卒業研究発表講演会　2021/03/09

  93. 低圧コールドスプレー法による CFRP 上への金 属皮膜形成とその成膜メカニズム

    泉 安津志, 海老原 寛明, 齋藤 宏輝, 市川 裕士, 小川 和洋, 成瀬 恵寛, 鈴木 康 司, 石田 翔馬, 西崎 昭彦

    日本機械学会東北学生会 第 51 回学生員卒業研究発表講演会　2021/03/09

  94. 固相粒子接合界面から考えるコールドスプレー粒子付着現象

    市川裕士

    一般社団法人 表面技術協会第143回講演大会　2021/03/05

  95. 溶射・コールドスプレーを対象とした材料の変形・付着・損傷挙動評価

    伊藤潔洋, 荒井正行, 小川和洋, 市川裕士

    (一社)日本溶射学会 関東支部 2020 年度 第1回支部講演会　2020/12/22

  96. コールドスプレープロセスにおける金属粒子/金属基材の付着メカニズム Invited

    市川裕士

    日本溶射学会 特別企画講演会：固相粒子積層プロセスにおける接合メカニズム　2020/12/17

  97. Evaluation of Dynamic Fracture energy in High Velocity Frying Particle Impact for High Temperature aircraft materials

    Yuya IKUTA, Hiroki SAITO, Yuji ICHIKAWA, Kazuhiro OGAWA, Yutaro OTA, Yohei SAKAKIBARA

    2020/12/04

  98. 構造用材料の表面活性化接合に及ぼす諸因子の影響

    渡邊 航平, 齋藤 宏輝, 市川 裕士, 小川 和洋

    日本機械学会 材料力学部門 「材料力学における異分野融合に関する研究会」第 11 回研究会 -ミニシンポジウム-　2020/12/03

  99. Improvement of Deposition Efficiency and Adhesion by Laser Surface Texturing for Cold Sprayed Fluoropolymer Coating Invited

    Wesley Lock Sulen, Hiroki Saito, Chrystelle Bernard, Shinya Onodera, Junichi Ishizaki, Nicolas Mary, Yuji Ichikawa, Kazuhiro Ogawa

    10th Asian Thermal Spray Conference (ATSC)　2020/11/03

  100. Deposition Behavior of Agglomerated GaN Powder by Means of Low-Pressure Cold Spray

    Shaoyun Zhou, Chrystelle Bernard, Kesavan Ravi, Hiroki Saito, Yuji Ichikawa, Kazuhiro Ogawa

    10th Asian Thermal Spray Conference (ATSC)　2020/11/02

  101. Temperature effect on deposition behaviors of multilayer tin coating on carbon fiber reinforced polymer

    Jiayu Sun, Kenta Yamanaka, Kazuhiro Ogawa, Yuji Ichikawa, Hiroki Saito, Akihiko Chiba

    10th Asian Thermal Spray Conference (ATSC)　2020/11/02

  102. コールドスプレー施工フッ素系ポリマーコーティングに及ぼすレーザーテクス チャリングの効果

    W. Lock, C. Bernard, 市川 裕士, 小川 和洋, 石崎 潤一, 小野寺真也

    日本溶射学会 第112回（2020年度秋季）全国講演大会　2020/10/28

  103. 炭素繊維強化ポリマーのコールドスプレーSnコーティング

    孫 佳穰, 千葉 晶彦, 山中 謙太, 小川 和洋, 市川 裕士, 齋藤 宏輝

    日本溶射学会 第112回（2020年度秋季）全国講演大会　2020/10/27

  104. コールドスプレー法による超高張力鋼板アーク溶接継手の疲労強度向上

    山口 尚記, 塩崎 毅, 玉井 良清, 奥田 莞司, 市川 裕士, 小川 和洋

    日本溶射学会 第112回（2020年度秋季）全国講演大会　2020/10/27

  105. 固相粒子を用いた成膜技術とその界面強度 Invited

    市川裕士

    第1回日本機械学会東北支部，日本材料学会東北支部共同WEB セミナー　2020/10/17

  106. 単一固相積層微粒子/基材界面の微視的接合強度評価

    岩切 萌, 齋藤 宏輝, 市川 裕士, 小川 和洋

    一般社団法人 日本機械学会2020年度 年次大会　2020/09/13

  107. SELF-HEALING YB SILICATE ENVIRONMENTAL BARRIER COATINGS Invited

    Kazuhiro Ogawa, Takumi Kitahara, Yuji Ichikawa, Takaya Masuda, Kazuto Sato

    IRF2020: 7th International Conference Integrity-Reliability-Failure　2020/09/06

  108. 自己治癒特性を有するYbシリケート皮膜の高温環境下き裂閉口過程の経時変化

    北原匠, 市川裕士, 小川和洋, 益田敬也, 佐藤和人

    第57回高温強度シンポジウム　2019/12/05

  109. Effect of the Surface Oxide Film in Metallic Solid Phase Particle Deposition International-presentation Invited

    Yuji Ichikawa, Kazuhiro Ogawa

    J-K Ceramics 36　2019/11/23

  110. コールドスプレー法を用いたフッ素成膜におけるナノセラミック粒子添加が及ぼす影響

    W. Lock, C. Bernard, 市川裕士, 小川和洋

    日本溶射学会第110回 (2019年度秋季)全国講演大会　2019/11/13

  111. コールドスプレー法を用いたGaNコーティングの開発とその光触媒特性

    周 邵云, 市川裕士, 小川和洋

    日本溶射学会第110回 (2019年度秋季)全国講演大会　2019/11/13

  112. コールドスプレー法による軟磁性ナノ粒子膜成形

    渡部英治, 市川裕士, 小川和洋, 小川智之, 蔵裕彰

    日本溶射学会第110回 (2019年度秋季)全国講演大会　2019/11/13

  113. Effect of SiC Addition for Self-Healing Property of Yb Silicate Environmental Barrier Coatings

    Takumi Kitahara, Yuji Ichikawa, Kazuhiro Ogawa, Takuya Masuda, Kazuto Sato

    10th Japan-China Bilateral Symposium on High Temperature Strength of Materials　2019/10/26

  114. 金属材料の高速飛翔粒子衝突破壊特性評価手法の確立

    生田裕也, 市川裕士, 小川和洋

    第5回材料WEEK 若手学生研究発表会　2019/10/16

  115. コールドスプレー法による金属基材上への ポリイミド成膜メカニズムの解明

    高橋 迪大, 市川 裕士, 小川 和洋, 山本 義則, 寺井 護

    第5回材料WEEK 若手学生研究発表会　2019/10/16

  116. 低圧コールドスプレー法によるTi肉盛り補修技術へ及ぼすスプレー前処理の効果

    海老原寛明, 市川裕士, 小川和洋

    第5回材料WEEK 若手学生研究発表会　2019/10/16

  117. サスペンションプラズマ溶射施工耐環境コーティング

    小川和洋, 柳岡遼太郎, 市川裕士, 益田敬也, 佐藤和人

    日本溶射学会第109回 (2019年度春季)全国講演大会　2019/06/13

  118. 自己治癒特性を有するSiC添加Ybシリケート耐環境コーティングの開発

    北原匠, 市川裕士, 小川和洋, 益田敬也, 佐藤和人

    日本溶射学会第109回 (2019年度春季)全国講演大会　2019/06/13

  119. 近年のコールドスプレー成膜メカニズム研究

    市川裕士

    日本溶射学会第109回 (2019年度春季)全国講演大会　2019/06/13

  120. コールドスプレー法を用いたセラミック粒子付着に与える金属基材表面状態の 影響

    高橋航太, 市川裕士, 小川和洋

    日本溶射学会第109回 (2019年度春季)全国講演大会　2019/06/12

  121. Influence of particle shape on local adhesion strength of cold spray deposition International-presentation Invited

    Yuji Ichikawa, Ryotaro Tokoro, Kazuhiro Ogawa

    ITSC2019　2019/05/29

  122. Feasibility Study of GaN Coatings by Cold Spray Technique

    Shaoyun Zhou, Chrystelle A. Bernard, esavan Ravi, Yuji Ichikawa, Kazuhiro Ogawa

    ITSC2019　2019/05/27

  123. Development of Fluoroethylene Propylene Coating Using Low Pressure Cold_Spray

    W. Lock Sulen, K. Ravi, C. Bernard, Y. Ichikawa, K. Ogawa

    ITSC2019　2019/05/27

  124. 全固体電池の実用化に向けた金属基材上へのコール ドスプレー施工セラミックス粒子付着メカニズムの 解明

    高橋航太, 市川裕士, 小川和洋

    日本機械学会東北学生会第 49 回学生員卒業研究発表講演会　2019/03/05

  125. TiAl 合金の耐高速飛翔粒子衝激破壊特性

    生田裕也, 市川裕士, 小川和洋, 榊原洋平

    日本機械学会東北学生会第 49 回学生員卒業研究発表講演会　2019/03/05

  126. Development of Cold Sprayed GaN Coatings

    周 邵云, 市川裕士, 小川和洋

    日本溶射学会第108回 (2018秋度秋季)全国講演大会　2018/11/21

  127. Deposition Mechanism Analysis of Cold Sprayed Metallic Particle on Ceramic Substrate

    Shohei Nakamura, Yuji Ichikawa, Kazuhiro Ogawa

    9th Asian Thermal Spray Confe_rence (ATSC-2018)　2018/11/16

  128. Relationship Between Particle Shape and Adhesion Strength of Cold Spray Metallic Coatings

    Yuji ICHIKAWA, Ryotaro TOKORO, Kazuhiro OGAWA

    9th Asian Thermal Spray Confe_rence (ATSC-2018)　2018/11/16

  129. Influence of microstructure on fatigue property of ultra high-strength steels

    Kanji Okuda, Kazuhiro Ogawa, Yuji Ichikawa, Tsuyoshi Shiozaki, Naoki Yamaguchi

    'Crack Paths' (CP 2018)　2018/09/20

  130. 粒子形状の制御によるコールドスプレー皮膜密着強度の改善

    市川 裕士, 所 竜太郎, 小川 和洋

    日本機械学会 2018年度年次大会　2018/09/11

  131. Multi-Scale Adhesion Strength Evaluation of cold Spray Deposit

    Yuji ICHIKAWA, Francesco Delloro, Michel Jeandin, Kazuhiro OGAWA

    THERMEC’ 2018　2018/07/09

  132. Investifation of cold spray bonding mechanism focusing on the thin oxide film present in the deposition interface

    Y. Ichikawa, R. Tohoro, K. Ogawa

    ITSC2018　2018/05/08

  133. コールドスプレー法を利用した高耐熱高分子皮膜の開発

    高橋 迪大, 市川裕士, 小川和洋

    日本機械学会東北学生会第 48 回学生員卒業研究発表講演会　2018/03/07

  134. TiAl 合金の粒子衝撃特性評価

    海老原 寛明, 市川 裕士, 小川 和洋, 久布白 圭司, 榊原 洋平

    日本機械学会東北学生会第 48 回学生員卒業研究発表講演会　2018/03/07

  135. CoNiCrAlY-YSZ サーメット粒子を用いたコールドス プレー傾斜機能遮熱コーティングの開発_

    北原匠, 市川裕士, 小川和洋, 佐藤和人

    日本機械学会東北学生会第 48 回学生員卒業研究発表講演会　2018/03/07

  136. Microscale adhesion strength evaluation of cold sprayed copper deposit

    Y. Ichikawa, R. Tohoro, K. Ogawa

    ITSC2017　2017/06/05

  137. 硬度基材に対するコールドスプレー粒子付着挙動支配因子の解明

    石川 俊治, 市川 裕士, 小川 和洋

    日本機械学会東北支部 第52期総会・講演会　2017/03/14

  138. 低温プラズマ溶射法によるパワーデバイス放熱板用高配向性グラファイト上へのCu成膜とそのせん断密着強度評価

    平山 憲太, 竹馬 克洋, 成田 章, 市川 裕士, 小川 和洋

    日本機械学会東北支部 第52期総会・講演会　2017/03/14

  139. コールドスプレーで施工した酸化チタンセラミックスの皮膜形成に及ぼす粉末特性の影響

    李翔, 市川裕士, 小川和洋

    日本機械学会東北支部 第52期総会・講演会　2017/03/14

  140. アルミナ粒子混合によるコールドスプレー低炭素鋼皮膜の成膜効率改善

    石川 俊治, 市川 裕士, 小川 和洋

    第2回次世代イニシアティブ廃炉技術カンファレンス(NDEC-2)　2017/03/07

  141. 界面近傍のミクロ・ナノ組織に着目したセラミックス基材上へのコールドスプレー金属皮膜の成膜メカニズム解析

    中村翔平, 市川裕士, 小川和洋

    日本機械学会東北支部学生会 第47回卒業研究発表講演会　2017/03/07

  142. 切欠きを有する鋼板の疲労強度に及ぼすミクロ組織の影響

    奥田莞司, 市川裕士, 小川和洋

    日本機械学会東北支部学生会 第47回卒業研究発表講演会　2017/03/07

  143. 異種金属材料常温拡散接合の基礎的検討とその接合強度の改善

    田子さくら, 橋本健太郎, 市川裕士, 小川和洋

    日本機械学会東北支部学生会 第47回卒業研究発表講演会　2017/03/07

  144. 熱成長酸化物の生成・成長を積極的に利用した遮熱コーティングの界面強度改善

    小川和洋, 市川裕士, 及川充洋, 田附匡, 山崎裕之

    日本機械学会第24回機械材料・材料加工技術講演会(M&P2016)　2016/11/25

  145. コールドスプレー法による高硬度セラミック皮膜の開発

    李翔, 市川裕士, 小川和洋, 阿部直紀, 土生陽一郎, 安田要, 伊藤義康

    日本溶射学会第104回（2016年度秋季）全国講演大会　2016/11/17

  146. グラファイト上に成膜した勤続溶射皮膜の密着強度評価

    平山憲太, 成田章, 竹馬克洋, 市川裕士, 小川和洋

    日本機械学会 M&M2016 材料力学カンファレンス　2016/10/09

  147. コールドスプレー法によるセラミック基板上への金属粉末成膜メカニズム解明に関する基礎的検討

    宋文, 市川裕士, 小川和洋

    日本機械学会東北支部第52期秋季講演会　2016/09/16

  148. コールドスプレー粒子の 衝突エネルギーに関する検討

    石川 俊治, 市川 裕士, 小川 和洋

    日本機械学会 2016年度年次大会　2016/09/13

  149. Micro-Scale Interface Strength Evaluation for Solid State Bonded Materials

    Yuji Ichikawa, Ryotaro Tokoro, Kazuhiro Ogawa

    2016 M&M International Symposium for Young Researchers　2016/08/10

  150. ボンドコート材料の内部高温酸化を利用した遮熱コーティングの耐はく離特性改善

    片柳 豪太, 及川 充洋, 山崎 裕之, 田附 匡, 市川 裕士, 小川 和洋

    日本溶射学会第103回（2016年度春季）全国講演大会　2016/06/07

  151. プラズマ溶射施工耐環境コーティングの基礎物性評価

    柳岡遼太郎, 市川 裕士, 小川 和洋, 山崎 泰広, 鈴木 雅人, 佐藤 和人

    日本溶射学会第103回（2016年度春季）全国講演大会　2016/06/07

  152. 超微小引張試験によるコールドスプレー皮膜の局所的接合強度評価

    所 竜太郎, 市川 裕士, 小川 和洋

    日本溶射学会第103回（2016年度春季）全国講演大会　2016/06/07

  153. Micro-scale strength evaluation for bonding interface of cold sprayed coatings

    Yuji Ichikawa, Ryotaro Tokoro, Kazuhiro Ogawa

    THERMEC　2016/06/01

  154. 低エネルギー成膜に向けた低温プラズマ溶射法における成膜原理解明のための基礎的検討

    平山憲太, 市川裕士, 小川和洋

    第1回次世代イニシアティブ廃炉技術カンファレンス(NDEC-1)　2016/03/16

  155. コールドスプレー成膜技術の低エネルギー化に向けた基礎的検討

    石川 俊治, 市川 裕士, 小川 和洋

    第1回次世代イニシアティブ廃炉技術カンファレンス(NDEC-1)　2016/03/16

  156. 原子配列の秩序性を考慮した粒界強度評価手法の開発

    中西 貴大, 市川 裕士, 鈴木 研, 三浦 英生

    日本機械学会東北支部第51期総会・講演会　2016/03/11

  157. Ce 添加ボントコートを有する遮熱コーティングのミクロ組織変化と強度特性

    堀内真 之介, 八田旬, 市川裕士, 小川和洋, 及川充洋, 山崎裕之, 田附匡

    日本機械学会東北支部第51期総会・講演会　2016/03/11

  158. 高温酸化挙動と耐はく離特性評価

    大田浩平, 市川裕士, 島津武仁, 小川和洋

    日本機械学会東北支部第51期総会・講演会　2016/03/11

  159. セラミック粒子添加ボンドコートを有する遮熱コーティングの

    片柳 豪太, 及川 充洋, 山崎 裕之, 田附 匡, 市川 裕士, 小川 和洋

    日本機械学会東北支部学生会 第46回卒業研究発表講演会　2016/03/04

  160. セラミック基複合材料用耐環境コーティングに関する基礎的検討

    柳岡遼太郎, 市川 裕士, 小川 和洋, 山崎 泰広, 鈴木 雅人, 佐藤 和人

    日本機械学会東北支部学生会 第46回卒業研究発表講演会　2016/03/04

  161. 超微小引張試験を用いたコールドスプレーコーティングの局所的接合エネルギー評価

    所 竜太郎, 市川 裕士, 小川 和洋

    日本機械学会東北支部学生会 第46回卒業研究発表講演会　2016/03/04

  162. 固相接合法とその強度評価

    市川 裕士

    日本溶射学会 コールドスプレー研究分科会　2015/12/11

  163. 微小引張試験法を用いた結晶粒界強度測定

    中西 貴大, 加藤 武瑠, 市川 裕士, 鈴木 研, 三浦 英生

    日本機械学会 M&M2015材料力学カンファレンス　2015/11/21

  164. 固相接合材料の接合界面微小領域における強度と組織評価法に関する検討

    市川 裕士, 小川 和洋

    日本機械学会 M&M2015材料力学カンファレンス　2015/11/21

  165. 表面活性化接合の接合強度改善のためのコールドスプレー中間層の検討

    大田浩平, 市川裕士, 島津武仁, 小川和洋

    日本機械学会 M&M2015材料力学カンファレンス　2015/11/21

  166. Development of Measurement Method of the Strength of a Grain Boundary

    Takahiro Nakanishi, Takeru Kato, Yuji Ichikawa, Ken Suzuki, Hideo Miura

    ATEM’15, JSME-MMD　2015/10/04

  167. Measurement of the Strength at Grain Boundaries in Electroplated Copper Thin- Film Interconnections

    Takahiro Nakanishi, Takeru Kato, Yuji Ichikawa, Ken Suzuki, Hideo Miura

    Extended Abstracts of the 2015 International Conference on Solid State Devices and Materials,　2015/09/27

  168. TiO2 film for Dy-Sensitized Solar Cell Fabricated by Low Pressure Cold Spay Technique

    Yacong Xue, Huajie Han, Yuji Ichikawa, Kazuhiro Ogawa

    7th Asian Thermal Spray Sonference　2015/09/22

  169. Ce 添加ボントコートを有する遮熱コーティング高温曝露試験片の界面強度経時変化

    堀内真 之介, 八田旬, 小川和洋, 市川裕士, 及川充洋, 山崎裕之, 田附匡

    日本機械学会 2015年度年次大会　2015/09/14

  170. 遮熱コーティング/Ce添加ボンドコート界面における くさび状熱成長酸化物の生成・成長メカニズム

    小川 和洋, 八田 洵, 市川 裕士, 及川 充洋, 山崎 裕之, 田附 匡

    日本溶射学会 第101回(2015年度春季)全国講演大会　2015/05/28

  171. 溶かさない成膜・接合技術と廃止措置への取り組み

    市川 裕士

    日本保全学会 東北・北海道支部 第7回総会・特別講演会　2015/05/14

  172. Influence of Surface Oxide Film on Deposition Behavior of Cold Spray Emulated Particle by Single Particle Shot System International-presentation

    Kiyohiro Ito, Yuji Ichikawa, Kazuhiro Ogawa

    ITSC 2015: International Thermal Spray Conference & Exposition　2015/05/11

  173. Mechanistic Study and Characterization of Cold Sprayed Ultra High Molecular Weight Polyethylene-Nano Ceramic Composite International-presentation

    Kesavan Ravi, Yuji Ichikawa, Tiana Deplancke, Kazuhiro Ogawa, Olivier Lame, Jean-Yves Cavaille

    ITSC 2015: International Thermal Spray Conference & Exposition　2015/05/11

  174. コールドスプレー法による高張力鋼板上への皮膜形成に関する基礎的検討

    石川 俊治, 市川 裕士, 小川和洋

    日本機械学会東北支部学生会 第45回卒業研究発表講演会　2015/03/10

  175. 高熱伝導グラファイト上への金属成膜の可能性評価

    平山 憲太, 成田 章, 竹馬 克洋, 市川 裕士, 小川和洋

    日本機械学会東北支部学生会 第45回卒業研究発表講演会　2015/03/10

  176. effect of heat treatment on the microstructure and mechanical properties of cold sprayed WC-cermet coatings International-presentation

    R. Ishimura, Y. Sakai, M. Yamashita, K. Shiokawa, S. Izumi, K. Sato, Y. Ichikawa, K. Ogawa

    6th Asian Thermal Spray Conference　2014/11/24

  177. Importance of Surface Activation for Cold Sprayed Particle Deposition International-presentation

    Kazuhiro Ogawa, Yuji Ichikawa, Kentaro Hashimoto, Takehito Shimatsu

    6th Asian Thermal Spray Conference　2014/11/24

  178. コールドスプレー技術の発電技術への応用と課題

    市川 裕士, 小川和洋

    （社）火力原子力発電技術協会 東北支部 研究発表会　2014/11/20

  179. 固相接合に及ぼす自然酸化皮膜の影響

    大田浩平, 橋本 健太郎, 市川 裕士, 島津 武仁, 小川 和洋

    日本溶射学会 第100回(2014年度秋季)全国講演大会　2014/11/05

  180. 遮熱コーティングの熱成長酸化物の成長に及ぼす ボンドコート化学組成および応力負荷の効

    堀内真之介, 八田洵, 市川裕士, 小川和洋

    日本機械学会2014年度年次大会　2014/09/07

  181. 表面活性化現象を利用したバルク構造材用常温接合技術の検討

    市川 裕士, 橋本 健太郎, 島津 武仁, 小川 和洋

    M&M2014 カンファレンス　2014/07/19

  182. コールドスプレー皮膜の微小強度評価

    市川裕士, 渡邊雄亮, 三浦英生, 小川和洋

    日本溶射学会 第99回(2014年度春季)全国講演大会　2014/06/03

  183. Micro-structure and micro-strength of cold sprayed copper deposition International-presentation

    Yuji Ichikawa, Yusuke WATANABE, Isamu Nonaka, Hideo MIURA, Kazuhiro OGAWA

    EUCOSS2014 2nd European Cold Spray Symposium　2014/05/26

  184. Micro-scale interface strength evaluation of cold sprayed deposit International-presentation

    Yuji ICHIKAWA, Yusuke WATANABE, Kazuhiro OGAWA, Hideo MIURA

    ITSC 2014　2014/05/21

  185. コールドスプレー膜の強度支配因子の解明

    渡邊雄亮, 市川裕士, 鈴木研, 三浦英生

    日本機械学会東北支部第49期総会　2014/03/14

  186. コールドスプレー銅皮膜の強度支配因子評価

    渡邊雄亮, 市川裕士, 鈴木研, 三浦英生

    第28回エレクトロニクス実装学会春季講演大会　2014/03/05

  187. コールドスプレー皮膜内部の結晶粒径に関する基礎的検討

    市川裕士, 渡邊雄亮, 小川和洋, 三浦英生

    日本機械学会M&M2013材料力学カンファレンス　2013/10/11

  188. コールドスプレー銅積層膜の粒界強度評価

    渡邊雄亮, 市川裕士, 小川和洋, 三浦英生

    日本機械学会M&M2013材料力学カンファレンス　2013/10/11

  189. レーザを用いた熱衝撃疲労現象の再現と寿命予測法の検討

    市川 裕士, 太田 茂樹, 河合 豊, 伊藤 克美, 庄子 哲雄

    日本機械学会M&M2013材料力学カンファレンス　2013/10/11

  190. Strength of particle interface in Cold-Sprayed Copper Deposit International-presentation

    Yusuke WATANABE, Yuji ICHIKAWA, Kazuhiro OGAWA, Hideo MIURA

    International Symposium for the 70th Anniversary of the Tohoku Branch of the Chemical Society of Japan　2013/09/28

  191. コールドスプレー銅皮膜の組織制御に関する基礎的検討

    市川 裕士, 渡邊 雄亮, 野中 勇, 三浦 英生

    日本機械学会2013年度年次大会　2013/09/08

  192. Microtexture and Electrical and Mechanical Properties of the Cold-sprayed Copper Deposit International-presentation

    Yusuke Watanabe, Yuji Ichikawa, Kazuhiro Ogawa, Hideo Miura

    ASME2013 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems(InterPACK2013)　2013/07/16

  193. コールドスプレー銅皮膜の微細組織評価法の検討

    市川 裕士, 渡邊 雄亮, 野中 勇, 三浦 英生

    日本溶射学会 第97回(2013年度春季)全国講演大会　2013/06/20

  194. Influence of Carrier Gas Composition on Microstructures and Mechanical Properties of Cold-Sprayed Titanium Coatings International-presentation

    Y. Ichikawa, K. Ogawa, N. Nose, Y. Nomura, M. Takahashi, H. Amano

    ITSC 2013　2013/05/13

  195. Characterization of Cold-Sprayed Copper Coatings with New Evaluation Parameter of EBSD Method International-presentation

    Yusuke Watanabe, Yuji Ichikawa, Isamu Nonaka, Hideo Miura

    ITSC 2013　2013/05/13

  196. コールドスプレー法で作製した銅皮膜内部の粒子間界面性状評価

    渡邊雄亮, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北支部第48期総会・講演会　2013/03/15

  197. 改良９Cr-1Mo鋼の高温高サイクル疲労特性

    越智基之, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北学生会第43回卒業研究発表講演会　2013/03/11

  198. GS23 Study on Laser Used Thermal Shock Fatigue Test and Life Prediction

    ICHIKAWA Yuji, OHTA Shigeki, KAWAI Yutaka, ITO Katsumi, SHOJI Tetsuo

    The Proceedings of the Materials and Mechanics Conference　2013

    More details Close

    Laser used thermal shock fatigue testing method was established. In this test, acoustic emission technique allows detecting the number of cycle to crack initiation. Infrared thermography image monitoring results and computer-aided engineering (CAE) simulation figure out stress and strain distribution during fatigue testing. It was found that the number of cycle to crack initiation was depending on the difference in temperature condition during the test. Damage factor was introduced as a parameter to evaluate the cumulative fatigue damage during the test. Damage factor was defined as a strain-energy of micro region in each cycle test. When cumulative damage factor exceeds critical condition, fatigue crack initiation was observed. The critical condition may be described with equivalent plastic strain. Increasing cooling rate in thermal cycle, induced stress and strain were larger. Accompanying this change is an increasing damage factor, and the fatigue life is shorter. This study suggests a possible beneficial effect of life prediction with damage factor.

  199. Micro-structural evaluation of the particle interface in the cold-sprayed copper deposit International-presentation

    Yusuke Watanabe, Yuji Ichikawa, Isamu Nonaka, Hideo Miura

    5th Asian Thermal Spray Conference,　2012/11/26

  200. 超音波疲労試験での実効負荷応力と発熱機構に関する研究

    市川 裕士, 橋本 健太郎, 野中 勇, 三浦 英生

    日本材料学会 第31回疲労シンポジウム　2012/11/20

  201. HIGH CYCLE FATIGUE PROPERTIES OF MODIFIED 9CR-1MO STEEL AT ELEVATED TEMPERATURES International-presentation

    Yoshiaki Matsumori, Jumpei Nemoto, Yuji Ichikawa, Isamu Nonaka, Hideo Miura

    ASME 2012 International Mechanical Engineering Congress & Exposition, (IMECE2012)　2012/11/09

  202. 超音波疲労試験の負荷応力分布に及ぼす試験片形状の影響

    橋本健太郎, 市川裕士, 野中勇, 三浦英生

    日本機械学会M&M2012材料力学カンファレンス　2012/09/21

  203. 改良9Cr-1Mo鋼の超高サイクル疲労

    松森義明, 市川裕士, 野中勇, 三浦英生

    日本機械学会M&M2012材料力学カンファレンス　2012/09/21

  204. コールドスプレー法で作製した銅皮膜内部の粒子間界面性状評価

    渡邊雄亮, 市川裕士, 野中勇, 三浦英生

    日本機械学会2012年度年次大会　2012/09/09

  205. Numerical Simulation of the Cold Spray Deposition Process for Aluminium and Copper International-presentation

    Jing Xie, Daniel Nelias, Hélène Walter-le Berre, Yuji Ichikawa, Kazuhiro Ogawa

    ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis　2012/07/02

  206. STUDY ON HEAT TREATABILITY AND MICROSTRUCTURE OF COLD-SPRAYED COPPER COATINGS International-presentation

    Y. Ichikawa, Y. Watanabe, I. Nonaka, H. Miura

    SMT26　2012/06/20

  207. コールドスプレー法で作製した銅皮膜の熱処理特性に関する研究

    市川 裕士, 渡邊 雄亮, 野中 勇, 三浦 英生

    日本溶射学会 第95回(2012年度春季)全国講演大会　2012/06/18

  208. 改良9Cr-1Mo鋼の超高サイクル疲労に関する基礎検討

    松森義明, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北支部第47期総会・講演　2012/03/13

  209. 改良9Cr-1Mo鋼の高温高サイクル疲労特性

    根本淳平, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北支部第47期総会・講演　2012/03/13

  210. 超音波疲労試験法を用いたSCM445（50CrMo4）鋼の超高サイクル疲労強度特性評価

    橋本健太郎, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北学生会第42回卒業研究発表講演会　2012/03/06

  211. コールドスプレー法で形成した銅薄膜の強度物性支配因子の解明

    渡邊雄亮, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北学生会第42回卒業研究発表講演会　2012/03/06

  212. 鉄道車軸材の高サイクル疲労強度に及ぼす負荷周波数の影響

    野中勇, 瀬戸脇創太, 市川裕士

    高温強度・破壊力学シンポジウム　2011/11/24

  213. 熱処理がコールドスプレー銅積層体の機械的特性に与える影響

    渡邊雄亮, 市川裕士, 野中勇, 三浦英生

    日本溶射学会 第94回(2011年度秋季)全国講演大会　2011/11/14

  214. 超音波疲労試験の負荷応力に関する研究

    橋本健太郎, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北支部第47期秋季講演　2011/09/22

  215. 改良９Cr-１Mo鋼の超高サイクル疲労特性

    根本淳平, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北支部第47期秋季講演　2011/09/22

  216. The influence of a heat treatment on the microstructure and mechanical properties of cold sprayed copper deposits International-presentation

    Yuji Ichikawa, Shun Tanemura, Yusuke Watanabe, Isamu Nonaka, Hideo Miura

    EUCOSS "11　2011/09/16

  217. コールドスプレー法で作製した銅皮膜の密着強度

    渡邊雄亮, 市川裕士, 野中勇, 三浦英生

    日本機械学会東北支部第47期秋季講演　2011/08/22

  218. Effect of Frequency on High Cycle Fatigue Strength of Railway Axle Stee International-presentation

    S. Setowaki, Y. Ichikawa, I. Nonaka

    5th Int. Conf. on Very High Cycle Fatigue,　2011/06/28

  219. 微視組織に着目した コールドスプレー銅積層体の強度特性評価

    市川裕士, 種村駿, 野中勇

    日本溶射学会 第93回(2011年度春季)全国講演大会　2011/06/06

  220. コールドスプレー銅皮膜の強度特性とその発現機構

    種村 駿, 市川 裕士, 野中 勇

    日本機械学会東北学生会 第41回学生員卒業研究発表講演会　2011/03/03

  221. バルクハウゼンノイズを用いた炭素鋼S38Cにおける非破壊高サイクル疲労損傷計測法開発

    高野 泰志, 市川 裕士, 野中 勇

    日本機械学会東北学生会 第41回学生員卒業研究発表講演会　2011/03/03

  222. コールドスプレーによる亜鉛めっき鋼材の損傷補修の検討

    市川 裕士, 小川 和洋, 野中 勇

    日本機械学会2010年度年次大会　2010/09/06

  223. 炭素鋼S38Cの疲労挙動に及ぼす高周波焼き入れの影響に関する研究

    瀬戸脇 創太, 市川 裕士, 野中勇

    日本材料学会第59期通常総会・学術講演会　2010/05/21

  224. Effect of Substrate Surface Oxide Film Thickness on Cold Spray Deposition International-presentation

    Yuji ICHIKAWA

    COLD SPRAY CLUB MEETING MINES　2010/01/15

  225. コールドスプレー粒子付着挙動に及ぼす基材酸化皮膜厚さの影響

    市川 裕士, 小川 和洋, 野中 勇

    日本溶射協会第90回 (2009年度秋季) 全国講演大会　2009/12/03

  226. Cold spraying combined to laser surface pre-treated using PROTAL International-presentation

    D.K Christoulis, S. Guetta, V. Guipont, MH. Berger, M. Jeandin, M. Boustie, S. Costil, Y. Ichikawa, K. Ogawa, E. Irissou, JG. Legoux, C. Moreau

    ITSC 2009　2009/05/06

  227. Fundamental Study on Repairing Cracked or Damaged parts of Steel Structures Using Cold Spray International-presentation

    K. Ogawa, S. Amao, Y. Ichikawa, T. Fukanuma

    Cold SpRAY CLUB MEETING MINES　2008/12/12

  228. Difference in High-Temperature Oxidation Behavior Between Cold-sprayed and Low-Pressure Plasma-Sprayed MCrAlY coating International-presentation

    Yuji Ichikawa, Kazuhiro Ogawa, Tetsuo Shoji

    3rd International Conference on Material and Processing ICM&P　2008/10/07

  229. 炭素鋼によるコールドスプレー皮膜の機械的特性評価

    天尾 聡, 市川 裕士, 小川 和洋, 庄子 哲雄, 深沼 博隆

    日本機械学会2008年度年次大会　2008/08/03

  230. コールドスプレー法による構造物のき裂・損傷部に対する補修技術に関する基礎的研究

    小川 和洋, 天尾 聡, 市川 裕士, 庄子 哲雄

    保全学会　2008/07/10

  231. MCrAlYコールドスプレー皮膜の高温酸化特性

    市川 裕士, 小川 和洋, 庄子 哲雄

    日本溶射協会第87回 (2008年度春季) 全国講演大会　2008/06/16

  232. コールドスプレー法を用いた炭素鋼構造物に対する補修技術の確立

    天尾 聡, 市川 裕士, 小川 和洋, 庄子 哲雄, 深沼 博隆

    日本溶射協会第87回 (2008年度春季) 全国講演大会　2008/06/16

  233. Deposition Mechanism of Cold Sprayed MCrAlY Coatings Focused on Nanostructure International-presentation

    Y. Ichikawa, T. Miyazaki, K. Ogawa, T. Shoji, M. Jeandin

    ITSC 2008　2008/06/03

  234. Development of a repair technique for carbon steel structures by cold splaying

    天尾 聡, 市川 裕士, 小川 和洋, 庄子 哲雄, 深沼 博隆

    全国講演大会講演論文集　2008/06/02

  235. MCrAlYコールドスプレー皮膜の高温酸化特性

    市川裕士, 小川和洋, 庄子哲雄

    日本溶射協会全国講演大会講演論文集　2008/06/02

  236. Study on deposition mechanism of cold-sprayed MCrAlY coatings Invited

    Yuji ICHIKAWA

    Thermal Spraying Technique　2008/01

  237. 1241 Evaluation of mechanical properties of carbon steel on cold spraying coating

    AMAO Satoshi, ICHIKAWA Yuji, OGAWA Kazuhiro, SHOJI Tetsuo, FUKANUMA Hirotaka

    The proceedings of the JSME annual meeting　2008

    More details Close

    Carbon steels have been using in many structures, because the steels have excellent workability, affordability, and low price etc. However, it can be obtained corrosion damage or cracking on aging degradation. Cold spraying, which is a new maintenance technology, attracts attention recently. Though, it&#039;s difficult to make high carbon steel coatings by cold spraying, because high carbon steel includes much carbon. As a result, these are not many studies of cold sprayed carbon steels. In this study, dense and thick coatings of carbon steels by cold spraying was obtained, High carbon steel powder and mixed powder, which is mixed high carbon steel with mild steel powder were used. As a result, denser carbon steel coatings were obtained. And also, the coating hardness was higher than that of bulk steels.

  238. ナノ組織に着目した高速ガススプレー皮膜の付着メカニズム解明

    市川 裕士, 小川 和洋, 庄子 哲雄

    第51回日本学術会議材料工学連合講演　2007/11/29

  239. ナノ組織に着目した高速ガススプレー皮膜の付着メカニズム解明

    市川裕士, 小川和洋, 庄子哲雄

    日本学術会議材料工学連合講演会講演論文集　2007/11/27

  240. コールドスプレーMCrAlYコーティングの成膜メカニズムの検討

    市川裕士, 小川和洋, 庄子哲雄

    日本溶射協会全国講演大会講演論文集　2007/11/19

  241. 新しい表面改質技術「コールドスプレー法」

    市川 裕士, 小川 和洋, 伊藤 潔洋, 市村 賢司, 仁木 隆裕, 庄子哲雄

    （社）火力原子力発電技術協会 東北支部 研究発表会　2007/11/19

  242. コールドスプレーMCrAIYコーティングの成膜メカニズムの検討

    市川 裕士, 小川 和洋, 庄子 哲雄

    日本溶射協会第86回 (2007年度秋季) 全国講演大会　2007/11/19

  243. コールドスプレー皮膜の成膜条件と皮膜特性

    小川 和洋, 市川 裕士

    日本機械学会 M&M2007材料力学カンファレンス　2007/10/24

  244. 低圧型コールドスプレー法における粒子付着挙動に関する研究

    市川 裕士, 伊藤 潔洋, 小川 和洋, 庄子 哲雄

    日本機械学会 M&M2007材料力学カンファレンス　2007/10/24

  245. コールドスプレーアルミニウム皮膜の残留応力

    市川 裕士, 市村 賢司, 小川 和洋, 庄子 哲雄

    日本機械学会2007年度年次大会　2007/09/09

  246. High temperature oxidation behavior of cold-sprayed MCrAlY coatings International-presentation

    Yuji ICHIKAWA, Kazuhiro OGAWA, Tetsuo SHOJI

    6th Japan-China Bilateral Symposium on High Temperature Strength of Materials　2007/08/21

  247. 低圧型コールドスプレーにより施工した純Ａｌ皮膜の機械的特性評価

    小川 和洋, 市村 賢司, 市川 裕士, 庄子 哲雄

    日本溶射協会第85回 (2007年度春季) 全国講演大会　2007/06/07

  248. 低圧型コールドスプレー皮膜の粒子付着に及ぼす基材表面状態の影響

    市川 裕士, 小川 和洋, 伊藤 潔洋, 庄子 哲雄

    日本溶射協会第85回 (2007年度春季) 全国講演大会　2007/06/07

  249. Evaluation of Mechanical Properties of Pure Aluminum Coatings Sprayed by Low Pressure Type Cold Spray Technique

    OGAWA Kazuhiro, ICHIMURA Kenji, ICHIKAWA Yuji, SHOJI Tetsuo

    全国講演大会講演論文集　2007/05/27

  250. Surface condition influence on low-pressure type cold spray deposition

    市川 裕士, 小川 和洋, 伊藤 潔洋, 庄子 哲雄

    全国講演大会講演論文集　2007/05/27

  251. Deposition Mechanisms of Cold Gas Dynamic Sprayed MCrAlY Coatings International-presentation

    Y. Ichikawa, K. Sakaguchi, K. Ogawa, T. Shoji, S. Barradas, M. Jeandin, M. Boustie

    ITSC 2007　2007/05/14

  252. 323 Particle deposition behavior of low pressure type cold spraying

    ICHIKAWA Yuji, ITO Kiyohiro, OGAWA Kazuhiro, SHOJI Tetsuo

    The Proceedings of the Materials and Mechanics Conference　2007

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    The principle of cold spray is that the solid particle impacts and deposits on the substrate without melting and phase transformation. However, the cold spray deposition mechanism has not been clear yet. It is considered that the substrate surface condition has influence on the deposition behavior of cold spraying, and also surface condition may be changed by a large number of particle impinging. Several surface parameters such as surface roughness, hardness, temperature and micro structure are changed within particle impacts. In this study, in order to determine the most affective factor of cold spray deposition, the several times traversed and sprayed specimens were prepared. The surface activation was controlled by the interval time between traverses. The number of deposited particles on the substrate at the several interval times was investigated. From the results, it was confirmed that the surface activation is more important factor for cold spray deposition.

  253. 2404 Residual stress of cold dynamic gas sprayed aluminum coatings

    ICHIKAWA Yuji, ICHIMURA Kenji, OGAWA Kazuhiro, SHOJI Tetsuo

    The proceedings of the JSME annual meeting　2007

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    Cold gas dynamic spray, usually called as cold spray, is a new technique that provides dense and low oxide content metallic coating. In order to evaluate the possibility of on-site repair of aluminum components, residual stress distribution of an aluminum coating and a substrate that produced by low pressure type cold spraying were investigated. The residual stress distribution of the aluminum coating and the substrate in thickness direction were performed by the strain scanning method in synchrotron radiation facility SPring-8. As a result, the maximum compressive residual stress was obtained at the coating surface, and the residual stress inside the coating were approximately zero. On the other hand, the residual stress of the substrate were tensile. The compressive residual stress at the surface of the coating role of closing a crack.

  254. 低圧型コールドスプレー法に関する基礎的検討

    市川 裕士, 小川 和洋, 市村 賢司, 伊藤 潔洋, 庄子 哲雄

    日本溶射協会第84回 (2006年度秋季) 全国講演大会　2006/11/27

  255. Fundamental study on low pressure type cold gas dynamic spray aluminum deposition International-presentation

    Kenji Ichimura, Kiyohiro Ito, Yuji Ichikawa, Kazuhiro Ogawa, Tetsuo Shoji

    2nd Asian Thermal Spray Conference　2006/11/06

  256. Fundamental Study of Low Pressure Type Cold Gas Dynamic Spray International-presentation

    Kazuhiro Ogawa, Yuji Ichikawa, Kenji Ichimura, Kiyohiro Ito, Dowon Seo, Tetsuo Shoji

    2nd Tsukuba International Coatings Symposium,2006　2006/11/01

  257. コールドスプレー法を用いたMCrAlY合金コーティングに関する基礎的研究

    市川 裕士, 坂口 和彦, 小川 和洋, Michel Jeandin, Maurice Ducos, 庄子 哲雄

    日本機械学会M&M2006 材料力学カンファレンス　2006/08/04

  258. コールドスプレー法を用いたMCrAlY合金コーティングに関する基礎的研究

    市川裕士, 坂口和彦, 小川和洋, JEANDIN Michel, DUCOS Maurice, 庄子哲雄

    日本機械学会材料力学部門講演会講演論文集　2006/08/03

  259. ボンドコートを高速ガススプレー法で施工した遮熱コーティングの基礎的検討

    仁木隆裕, 小川和洋, 市村賢司, 市川裕士, 庄子哲雄

    高温強度シンポジウム前刷集　2006

  260. ボンドコートを高速ガススプレー法で施工した遮熱コーティングの基礎的検討

    仁木 隆裕, 小川 和洋, 市村 賢司, 市川 裕士, 庄子 哲雄

    第43回高温強度シンポジウム　2005/12/08

  261. メカニカルアロイング粉末を利用したMCrAlY溶射皮膜の耐食性向上

    市川 裕士, 小川 和洋, 庄子 哲雄

    第43回高温強度シンポジウム　2005/12/08

  262. Evaluation of Adhesive Strength of Thermal-Sprayed HAP Coatings Using The LAser Shock Adhesion Test (LASAT) International-presentation

    Yuji Ichikawa, Sophie Barradas, François Borit, Vincent Guipont, Michel Jeandin, Mariette Nivard, Laurent Berthe, Kazuhiro Ogawa, Tetsuo Shoji

    1st Asian Thermal Spray Conference,　2005/11/28

  263. Development of Highly Molten Chloride Corrosion Resistant Coatings Assisted by Mechano-chemical Reaction International-presentation

    Y. Ichikawa, K. Ogawa, T. Shoji, O. P. Solonenko

    ITSC 2005　2005/05/02

  264. メカニカルグラインディング粉末を用いた熱遮へいコーティングの高性能化

    小川和洋, 市川裕士, 丹野昌利, 庄子哲雄

    日本溶射協会全国講演大会講演論文集　2004/12/08

  265. Application of Mechanical Grinding and Refractory Ultrafine Powders for Thermal Sprayed Thermal Barrier Coatings International-presentation

    Kazuhiro Ogawa, Yuji Ichikawa, Masatoshi Tanno, Tetsuo Shoji, Oleg P. Solonenko, Anatoly N. Cherepanov, Vladimir A. Poluboyarov, Andrei R. Lapin

    Surface Modification Technologies XVIII　2004/11/15

  266. 溶融塩化物環境下におけるMCrAlY溶射皮膜への添加元素の効果

    市川 裕士, 小川 和洋, 庄子 哲雄

    日本機械学会 2004年度年次大会　2004/09/05

  267. Improvement of Molten Chloride Corrosion Resistance with Sprayed Coatings of Mechanical Alloyed Powders International-presentation

    Yuji Ichikawa, Kazuhiro Ogawa, Tetsuo Shoji

    3rd Surface Engineering Congress & Exposition　2004/08/02

  268. 溶融塩化物環境下におけるMCrAlY溶射皮膜の腐食特性

    市川 裕士, 小川 和洋, 庄子 哲雄

    日本機械学会東北支部 第39期総会　2004/03/14

  269. 402 Corrosion Property of Thermal Sprayed MCrAIY Coatings in a Molten Chloride Environment

    ICHIKAWA Yuji, OGAWA Kazuhiro, SHOJI Tetsuo

    The Proceedings of Conference of Tohoku Branch　2004

  270. Effects of Additional Elements to MCrAlY Coatings in a Molten Chloride Environment

    ICHIKAWA Yuji, OGAWA Kazuhiro, SHOJI Tetsuo

    The proceedings of the JSME annual meeting　2004

    More details Close

    In refuse incineration power generation plants, increasing the combustion temperature directly improves plant efficiency. However, due to molten chloride corrosion, the combustion temperature cannot be increased. Consequently, protecting of components from molten chloride corrosion is necessary. In this study, MCrAlY coating was proposed as a protective film against molten chloride corrosion. And also the effects of adding elements to CoNiCrAlY were examined. Four kinds of specimens were prepared. One is a standard CoNiCrAlY coated specimen. The others are Mo blended CoNiCrAlY, mechanically milled CoNiCrAlY, and mechanically alloyed CoNiCrAlY with Mo specimens. These coatings were made by low pressure plasma spraying (LPPS). The specimens were exposed to molten chloride corrosion tests in a NaCl-KCl environment. The results show that mechanically alloyed CoNiCrAlY with Mo has excellent corrosion resistantance.

  271. Application of mechanically ground powder for thermal barrier coatings

    OGAWA Kazuhiro, Ichikawa Yuji, SHOJI Tetsuo

    The proceedings of the JSME annual meeting　2004

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    This paper describes a method for improving the bond strength of the interface between thermal barrier coatings and bond coatings. So far, in order to increase the bond strength and increase the formation of thermally grown oxide (TGO), Ce and Si were added to the bond coating material and a laser remelting technique for the bond coating were developed. As a result, the improved TBC had superior bond strength compared to conventional TBC. For the next step, to further improve coating properties such as oxidation or delamination resistance, a new coating system is suggested. In this study, high energy ball-milled powder was used for plasma spraying. Active nano particles were deposited on the surfaces of the powder. Using milled powder notably changed the thermodynamic properties. And as a result of high temperature exposure tests, it was show that the morphology of oxidation that formed at the interface was different compared to conventional coatings.

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Industrial Property Rights 10

  1. 磁性粒子成形体の製造方法

    渡部 英治, 藏 裕彰, 小川 和洋, 市川 裕士, 小川 智之

    Property Type: Patent

  2. 高炭素鋼部材の補修における高効率付着方法及び材料

    小川 和洋, 市川 裕士, 天尾 聡, 横山 信行, 石津 昭彦

    特許5493334

    Property Type: Patent

  3. コールドスプレー用ノズルおよびコールドスプレー装置

    齋藤 宏輝, ユセン メン, クリステル, ベルナール, 小川 和洋, 市川 裕士, 小林 隆, 新藤 智也, 佐久間 隼司, 藤村 祥基

    Property Type: Patent

  4. 溶射材料、それを用いた溶射方法、溶射皮膜

    小川 和洋, 市川 裕士, 齋藤 宏輝, 益田 敬也, 伊部 博之

    Property Type: Patent

  5. 金属含有皮膜を有する炭素繊維強化プラスチック成形体

    小川 和洋, 市川 裕士, 齋藤 宏輝, 鈴木 成高, 泉 安津志, 成瀬 恵寛, 鈴木 康司, 石田 翔馬, 西崎 昭彦

    Property Type: Patent

  6. ボンドコート層、熱遮蔽被膜被覆部材及びその製造方法

    Property Type: Patent

  7. 高圧水素ガス用蓄圧器の製造方法

    庄子 哲雄, 小川 和洋, 市川 裕士, 福地 真也, 大谷 光平

    特許6621676

    Property Type: Patent

  8. 高炭素鋼の補修技術

    小川 和洋, 市川 裕士, 天尾 聡, 横山 信行, 石津 昭彦

    Property Type: Patent

  9. 熱遮蔽コーティング部材の製造方法及び熱遮蔽コーティング部材

    小川 和洋, 庄子 哲雄, 市川 裕士, 丹野 昌利, オルグ・ソロネンコ, ヴラディミール・ポルボヤロフ

    Property Type: Patent

  10. 耐溶融塩腐食コーティング部材の製造方法及び耐溶融塩腐食コーティング部材

    小川和洋, 庄子哲雄, 市川裕士

    Property Type: Patent

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Research Projects 14

  1. Space Battery Stable for 100 Years in Extreme Space Environments

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: Tohoku University

    2024/06/28 - 2027/03/31

  2. 極限環境下における金属材料の変形メカニズムの解明

    伊藤 潔洋, 市川 裕士

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 公立諏訪東京理科大学

    2024/04 - 2027/03

  3. Establishment of solid-state particle bonding technology using the interaction between ultrafast deformation and chemical reactions, and its scientific principles

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: Tohoku University

    2023/04/01 - 2026/03/31

  4. Establishment of solid-state particle bonding technology using the interaction between ultrafast deformation and chemical reactions, and its scientific principles

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

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

    Institution: Tohoku University

    2023/04/01 - 2026/03/31

  5. ハイエントロピー合⾦固相粒⼦の⾼効率積層に向けた超⾼速変形メカニズムの解明

    伊藤 潔洋, 市川 裕士, 井上 遼

    Offer Organization: 池谷科学技術振興財団

    System: 2024年度単年度研究助成

    Institution: 公立諏訪東京理科大学

    2024/04 - 2025/03

  6. 粒子衝突プロセスにおける特異な異種材固相接合現象の究明と常温付加加工への展開

    亀山 雄高, 南部 紘一郎, 市川 裕士

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 基盤研究(C)

    Category: 基盤研究(C)

    Institution: 東京都市大学

    2021/04 - 2024/03

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    本研究課題は，微粒子ピーニングにおいて生じる移着現象に焦点を当て，実験と解析の両面から検討を加える内容である．2021年度には，(1)微粒子ピーニングの被処理材および粒子の組み合わせによる移着挙動の差異について，(2)微粒子ピーニングの過程で移着成分が被処理材母材中にメカニカルミキシングされた結果形成される特異的微視組織(ラメラ状組織)について，(3)微粒子ピーニングにおける移着の発生メカニズムに対する解析的検討について，研究に取り組んだ．以下，各項目の詳細をまとめる． (1) 硬さの比率や化学的親和性の大小の面で異なる被処理材と粒子とを組み合わせて微粒子ピーニングを施し，その際に生じる移着の有無について比較を行った．その結果，両者の硬さ比や投射時間などの条件に応じて移着発生の有無や移着量の多寡が変化していく傾向を大まかにつかむことができた．比較的硬さの低い粒子を用いた場合であっても，被処理材が相応に低い硬さを有していればラメラ状組織が形成されること，比較的化学的親和性に富む組み合わせの粒子と被処理材であっても必ずしも移着が生じやすいわけではないこと，などの新しい知見も得られた． (2) ラメラ状組織が形成・発達していく過程を準その場観察するための実験装置の設計・施策を進めた．また，ラメラ状組織内部に存在する，移着物由来相と被処理材母材相とがなす界面の接合強度を評価する実験を行う計画であったが，装置の都合により延期となった． (3) 粒子法を利用して微粒子ピーニングによる粒子噴流を模擬した解析モデルを構築した．これを用いて，ピーニング加工条件の各種パラメータが噴流の様子に及ぼす影響や，被処理材衝突後の粒子の振る舞いとそれによる加工作用について新たな知見が得られた．

  7. Nano-Mechanochemistry at the Solid-State Particle Bonding Interface

    Yuji Ichikawa

    Offer Organization: Japan Science and Technology Agency (JST)

    System: Strategic Basic Research Programs PRESTO

    Institution: Tohoku Univeristy

    2020/10 - 2024/03

  8. 過酷なしゅう動条件下で摩擦低減をもたらす物理的かつ化学的な表面テクスチャの創製 Competitive

    亀山雄高

    Offer Organization: 日本学術振興会

    System: 科学研究費補助金 基盤研究(C)

    Category: 基盤研究(C)

    Institution: 東京都市大学

    2018/04 - 2021/03

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    2021年度は，微粒子ピーニングによって鉄成分を移着させたアルミニウム表面（化学的テクスチャ面）における摩擦摩耗特性についての研究を進捗させた．母材と潤滑油剤中の添加剤との反応生成物であり，摩耗面に形成され摩擦係数や摩耗量を大きく左右するトライボフィルムの組成について元素分析を通して詳細に検討を加えた．移着させた鉄成分が摩耗によって消耗すると，耐摩耗性を司るリン酸系トライボフィルムの形成が不十分となり，摩耗の進行につながることが明らかとなった．一連の現象についてはさらなる検証が必要ではあるが，化学的テクスチャ面における潤滑油材の作用メカニズムでは移着させた鉄が大きく関与している可能性を見出すことができた．一方，これまでには常温下での摩擦摩耗試験を行ってきたが，エンジン稼働状態を模擬した80～100℃程度の温度下で実験を行うことの必要性も見出された． 一方，微粒子ピーニングにより微細周期構造を形成したアルミニウム表面（物理的テクスチャ面）における摩擦摩耗特性に関する研究についての進捗は，微粒子ピーニングによるテクスチャリング挙動についての基礎的知見収集が中心であった．本研究において主に着目しているのは，浅い投射角度で微粒子ピーニングを施した場合に形成される「うね状」の異方性周期構造が摩擦特性に及ぼす影響であるが，凹凸のスケールが同等で構造の異方性有無が異なるテクスチャ面を作り分けるための条件を見出したので，次年度にそれらの試験片を用いた摩擦試験を行い，結果の比較を進める計画である．

  9. ヘテロ構造制御によるポリマー／セラミック複合粒子固相成膜と成膜機構の総合的解析 Competitive

    小川和洋

    System: 科学研究費補助金 基盤研究(A)

    2017/04 - 2020/03

  10. Elucidation of Solid State Bonding Phenomena by Experimental and Computational Approach and Development of a Multiscale Interfacial Fracture Mechanics(Fostering Joint International Research) Competitive

    Ichikawa Yuji

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research)

    Institution: Tohoku University

    2017/04 - 2020/03

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    The solid-phase bonding process, such as cold spraying, is an entirely new material formation process. To make this technology practical, we have to understand the bonding mechanism and to guarantee the strength and reliability of them. Combining a macro-scale evaluation by Laser Shock Adhesion Test and micro-scale evaluation technique enables us to understand solid-state bonding phenomena from a multi-scale perspective.

  11. 次世代固相接合材料プロセス開発を支えるマイクロスケール材料強度学の基盤技術開発 Competitive

    市川裕士

    System: 科学研究費補助金 若手研究(A)

    2015/04 - 2018/03

  12. 応力腐食割れ発生過程の定量追跡のための皮膜/合金界面への形態学的アプローチの導入 Competitive

    竹田陽一

    System: 科学研究費補助金 基盤研究(C)

    2014/04 - 2017/03

  13. Study on mechanical property prediction model of cold sprayed coating Competitive

    ICHIKAWA Yuji

    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

    2009/04 - 2012/03

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    This work investigated dominant factor on mechanical properties of cold sprayed coating. Local area bonding, which is occurred in true contact area in particle interface is key mechanism of cold spray coating. True contact area bears material strength of cold sprayed coating. However, true contact bonding is weaker than ideal metallic bonding. Moreover, the density of cold spray coating is lower than that of bulk material. The density reduction is mainly occurred in true contact area. From these experimental evidences, the microstructure of true contact area is also important factor of mechanical property. Therefore, materials strength of cold spray is controlled by true contact area and interface structure of its.

  14. Elucidation of cold spray coating mechanism focused on nascent surface generation Competitive

    ICHIKAWA Yuji

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (Start-up)

    Institution: Tohoku University

    2007/04 - 2009/03

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Teaching Experience 10

  1. 数学物理学演習 II　Tohoku University

  2. Materials Science ! (English course)　Tohoku University

  3. Mechanics of Materials I (English course　Tohoku University

  4. 計画および製図 I　Tohoku University

  5. 創造工学研修　Tohoku University

  6. 学生実験 I　Tohoku University

  7. 学生実験 II　Tohoku University

  8. Mechanics of Materials (JYPE program, English course)　Tohoku University

  9. 基礎ゼミナール　Tohoku University

  10. コンピュータ実習　Tohoku University

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