2001 - 2002 Quasi tissue engineering of Process for Fabrication of Multi-Functional Composites
2001 - 2002 結合様式が異なる材料の脆化に関与する環境因子の抽出
2000 - 2002 石英系光ファイバの水素による環境脆化と水素存在状態解析
1998 - 2000 二次イオン質量分析法による水素の可視化技術の開発
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Papers (149):
Naoki Uemura, Takahiro Chiba, Kei Saito, Kenichi Takai. Hydrogen content dependence of crack initiation and propagation behavior of hydrogen embrittlement in tempered martensitic steel. ISIJ International. 2024. 64. 4. 678-687
Naoki Uemura, Takahiro Chiba, Kenichi Takai. Comparison of crack initiation sites and main factors causing hydrogen embrittlement of tempered martensitic steels with different carbide precipitation states. ISIJ International. 2024. 64. 4. 668-677
Kei Saito, Tetsuya Hirade, Kenichi Takai. Damage Accumulation and Recovery Involving Vacancy-Type Defects Enhanced by Hydrogen in Tempered Martensitic Steel Showing Quasi-Cleavage Fracture. Key Engineering Materials. 2023. 967. 11-16
Kazuki Okuno, Kenichi Takai. Extraction of reversible hydrogen trapped on prior austenite grain boundaries and promoting intergranular fracture in the elastic region of tempered martensitic steel by utilizing frozen-in hydrogen distribution at -196 °C. Acta Materialia. 2023. 259. 119291-119291
Tingshu Chen, Motomichi Koyama, Takahiro Chiba, Eiji Akiyama, Kenichi Takai. Mesoscale quantification of grain boundary character and local plasticity in hydrogen-assisted intergranular and intergranular-like cracking paths in tempered martensitic steel. Materials Science and Engineering: A. 2023. 886. 145718-145718
Kenichi Takai, Takehide Senuma, Eiji Akiyma. Prospective Research of Fundamental Factors and Characteristic Evaluations of Hydrogen Embrittlement. Bull. Iron Steel Inst. Jpn. 2020. 25. 3. 162-169
2023/03 - The American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) CHAMPION H. MATHEWSON AWARD K. Saito, T. Hirade, and K. Takai: Hydrogen Desorption Spectra from Excess Vacancy-Type Defects Enhanced by Hydrogen in Tempered Martensitic Steel Showing Quasi-cleavage Fracture, Metallurgical and Material Transactions A, 50A (2019) 5091-5102.