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小川 祐平

小川 祐平 (OGAWA, Yuhei) 0000-0003-2713-9822

TEL
09052931090
Address
305-0047 茨城県つくば市千現1-2-1 [アクセス]
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[論文] | [書籍] | [会議録] | [口頭発表] | [その他の文献] | [公開特許出願]

論文 TSV

2026
  1. Tatsuya Ito, Yuhei Ogawa, Wu Gong, Takuro Kawasaki, Akinobu Shibata, Stefanus Harjo. Stress and temperature, rather than hydrogen, govern stacking fault evolution during tensile deformation in Fe–24Cr–19Ni steel. Scripta Materialia. 273 (2026) 117084 10.1016/j.scriptamat.2025.117084
  2. Haruki Nishida, Yuhei Ogawa, Akinobu Shibata. Distinct impacts of hydrogen and carbon on thermally activated dislocation motion in Fe-Cr-Ni austenitic steel. Scripta Materialia. 273 (2026) 117111 10.1016/j.scriptamat.2025.117111 Open Access
  3. Yuhei Ogawa, Akinobu Shibata. Refining hydrogen-dislocation interaction model for thermally activated plasticity in Fe-Cr-Ni austenitic steels: Analyzing stress-dependent activation volume. Acta Materialia. 306 (2026) 121896 10.1016/j.actamat.2026.121896 Open Access
2025
  1. Yuhei Ogawa, Osamu Takakuwa, Akinobu Shibata. Overview of gaseous hydrogen-assisted fatigue crack growth in ferritic iron and steels: Bridging micro and macro. International Journal of Hydrogen Energy. 102 (2025) 1507-1529 10.1016/j.ijhydene.2025.01.136 Open Access
  2. Tingshu Chen, Yuhei Ogawa, Motomichi Koyama. Growth path and morphology of hydrogen-related cracks in grain-refined tempered martensitic steel produced by cyclic thermal treatment. International Journal of Hydrogen Energy. 136 (2025) 731-741 10.1016/j.ijhydene.2024.05.327 Open Access
  3. Tatsuya Ito, Yuhei Ogawa, Wu Gong, Wenqi Mao, Takuro Kawasaki, Kazuho Okada, Akinobu Shibata, Stefanus Harjo. Role of solute hydrogen on mechanical property enhancement in Fe–24Cr–19Ni austenitic steel: An in situ neutron diffraction study. Acta Materialia. 287 (2025) 120767 10.1016/j.actamat.2025.120767
  4. Timothee Redarce, Keiichiro Iwata, Yuhei Ogawa, Kaneaki Tsuzaki, Akinobu Shibata, Hisao Matsunaga. Ausformed high-strength low-alloy steel exhibits exceptional resistance to fatigue crack-growth in high-pressure hydrogen environments. International Journal of Fatigue. 193 (2025) 108814 10.1016/j.ijfatigue.2025.108814 Open Access
  5. Yuhei Ogawa, Akinobu Shibata. Plastic flow in Fe-Cr-Ni austenitic steel under the presence of solute H: A study via room temperature creep. Acta Materialia. 285 (2025) 120659 10.1016/j.actamat.2024.120659 Open Access
  6. Osamu Takakuwa, Yuhei Ogawa. Modeling hydrogen-assisted fatigue crack growth in low-carbon steel focusing on thermally activated hydrogen-dislocation interaction. Science and Technology of Advanced Materials. 26 [1] (2025) 2436345 10.1080/14686996.2024.2436345 Open Access
  7. Ivan Gutierrez-Urrutia, Yuhei Ogawa, Akinobu Shibata. Analysis of the influence of hydrogen on prismatic loops and dislocation dipole structure in an austenitic steel: Effect on stacking fault energy. International Journal of Hydrogen Energy. 180 (2025) 151741 10.1016/j.ijhydene.2025.151741 Open Access
  8. 小川 祐平, 髙桑 脩, 森山 潤一朗, 西田 会希, 津﨑 兼彰, 柴田 曉伸. Fe-Cr-Niオーステナイト鋼における水素固溶強化の現象論と潜在機構. 日本金属学会誌. 89 [10] (2025) 287-306 10.2320/jinstmet.j202523 Open Access
2024
  1. Yuhei Ogawa, Takeshi Fujita. Solid solution-hardening by hydrogen in Fe–Cr–Ni-based austenitic steel studied by strain rate sensitivity measurement: Contributions of effective stress and solute drag. Materials Science and Engineering: A. 911 (2024) 146941 10.1016/j.msea.2024.146941
  2. Ivan Gutierrez-Urrutia, Yuhei Ogawa, Akinobu Shibata. Hydrogen-enhanced microbanding in an austenitic FeMnAlC low-density steel: Effect on hydrogen embrittlement resistance. Acta Materialia. 280 (2024) 120335 10.1016/j.actamat.2024.120335 Open Access
  3. Yuhei Ogawa, Masaki Tanaka, Takeshi Fujita, Akinobu Shibata. Thermally activated dislocation motion in hydrogen-alloyed Fe–Cr–Ni austenitic steel revisited via Haasen plot. International Journal of Hydrogen Energy. 74 (2024) 170-182 10.1016/j.ijhydene.2024.06.113 Open Access
  4. Yuhei Ogawa, Kazuhiro Kuriyama, Motomichi Koyama. Dual grain size-effects on hydrogen-assisted fatigue crack growth in 1 GPa-class medium-carbon martensitic steel. International Journal of Hydrogen Energy. 50 (2024) 108-115 10.1016/j.ijhydene.2023.08.317 Open Access
  5. Yuhei Ogawa. Temperature-sensitive ductilization in hydrogen-alloyed Fe-Cr-Ni austenitic steel by enhanced deformation twinning. Scripta Materialia. 238 (2024) 115760 10.1016/j.scriptamat.2023.115760 Open Access
  6. Junichiro Moriyama, Osamu Takakuwa, Masatake Yamaguchi, Yuhei Ogawa, Kaneaki Tsuzaki. The contribution of Cr and Ni to hydrogen absorption energy in Fe-Cr-Ni austenitic systems: A first-principles study. Computational Materials Science. 232 (2024) 112650 10.1016/j.commatsci.2023.112650 Open Access
2023
  1. Osamu Takakuwa, Yuhei Ogawa, Ryunosuke Miyata. Antagonistic fatigue crack acceleration/deceleration phenomena in Ni-based superalloy 718 under hydrogen-supply. Scientific Reports. 13 [1] (2023) 6804 10.1038/s41598-023-33761-4 Open Access
  2. Yuhei Ogawa, Keiichiro Iwata. Fatigue Crack Propagation in Pearlitic Steel under Pressurized Gaseous Hydrogen: Influences of Microstructure Size and Strength Level. ISIJ International. 63 [7] (2023) ISIJINT-2023-011 10.2355/isijinternational.isijint-2023-011 Open Access
  3. Yuhei Ogawa, Osamu Takakuwa, Kaneaki Tsuzaki. Solid-solution hardening by hydrogen in Fe–Cr–Ni-based austenitic steel: Temperature and strain rate effects. Materials Science and Engineering: A. 879 (2023) 145281 10.1016/j.msea.2023.145281 Open Access
  4. Yuhei Ogawa, Haruki Nishida, Osamu Takakuwa, Kaneaki Tsuzaki. Hydrogen-enhanced deformation twinning in Fe-Cr-Ni-based austenitic steel characterized by in-situ EBSD observation. Materials Today Communications. 34 (2023) 105433 10.1016/j.mtcomm.2023.105433
2022
  1. Takashi Hosoda, Yuhei Ogawa, Osamu Takakuwa, Susumu Motomura, Hyuga Hosoi, Hisao Matsunaga. Effects of Ni Concentration and Aging Heat Treatment on the Hydrogen Embrittlement Behavior of Precipitation-Hardened High-Mn Austenitic Steel. Tetsu-to-Hagane. 108 [2] (2022) TETSU-2021-093 10.2355/tetsutohagane.tetsu-2021-093 Open Access
  2. Yuhei Ogawa. Development of Structural Alloys with Excellent Combination of Strength and Ductility <i>via</i> Utilizing Hydrogen as a Positive Constituent. Materia Japan. 61 [6] (2022) 325-333 10.2320/materia.61.325
  3. Naoaki Nagaishi, Yuhei Ogawa, Saburo Okazaki, Hisao Matsunaga. Fatigue limit of circumferentially notched metastable austenitic stainless steel under positive/negative stress ratios: Synergistic effects of notch-root mechanistic singularity and phase transformation. International Journal of Fatigue. 165 (2022) 107229 10.1016/j.ijfatigue.2022.107229
  4. Atsuki Setoyama, Yuhei Ogawa, Masami Nakamura, Yuya Tanaka, Tingshu Chen, Motomichi Koyama, Hisao Matsunaga. Transition mechanism of cycle- to time-dependent acceleration of fatigue crack-growth in 0.4 %C Cr-Mo steel in a pressurized gaseous hydrogen environment. International Journal of Fatigue. 163 (2022) 107039 10.1016/j.ijfatigue.2022.107039 Open Access
  5. Yuhei Ogawa, Kohei Noguchi, Osamu Takakuwa. Criteria for hydrogen-assisted crack initiation in Ni-based superalloy 718. Acta Materialia. 229 (2022) 117789 10.1016/j.actamat.2022.117789
  6. Haruki Nishida, Yuhei Ogawa, Kaneaki Tsuzaki. Chemical composition dependence of the strength and ductility enhancement by solute hydrogen in Fe–Cr–Ni-based austenitic alloys. Materials Science and Engineering: A. 836 (2022) 142681 10.1016/j.msea.2022.142681
  7. Yuhei Ogawa, Keiichiro Iwata, Saburo Okazaki, Masami Nakamura, Kazuki Matsubara, Osamu Takakuwa, Hisao Matsunaga. Fatigue crack-growth retardation after overloading in gaseous hydrogen: Revisiting the effect of hydrogen on crack-tip plastic-zone development. Materials Letters. 308 (2022) 131115 10.1016/j.matlet.2021.131115
  8. Yuhei Ogawa, Haruki Nishida, Masami Nakamura, Vigdis Olden, Alexey Vinogradov, Hisao Matsunaga. Dual roles of pearlite microstructure to interfere/facilitate gaseous hydrogen-assisted fatigue crack growth in plain carbon steels. International Journal of Fatigue. 154 (2022) 106561 10.1016/j.ijfatigue.2021.106561
2021
  1. Kohei Noguchi, Yuhei Ogawa, Osamu Takakuwa, Hisao Matsunaga. Internal and External Hydrogen-related Loss of Ductility in a Ni-based Superalloy 718 and Its Temperature Dependence. Tetsu-to-Hagane. 107 [11] (2021) TETSU-2021-056 10.2355/tetsutohagane.tetsu-2021-056 Open Access
  2. Saburo Okazaki, Satoshi Okuma, Kevinsanny, Yuhei Ogawa, Hideto Kawashima, Yusuke Funakoshi, Hisao Matsunaga. Unforeseen, negative interaction-effect of adjacent circumferential notches on the fatigue limit of Ni-based superalloy 718. Engineering Fracture Mechanics. 257 (2021) 108015 10.1016/j.engfracmech.2021.108015
  3. Yuya Tanaka, Saburo Okazaki, Yuhei Ogawa, Masahiro Endo, Hisao Matsunaga. Fatigue limit of Ni-based superalloy 718 relative to the shear-mode crack-growth threshold: A quantitative evaluation considering the influence of crack-opening and -closing stresses. International Journal of Fatigue. 148 (2021) 106228 10.1016/j.ijfatigue.2021.106228 Open Access
  4. Yuhei Ogawa, Masaki Hino, Masami Nakamura, Hisao Matsunaga. Pearlite-driven surface-cracking and associated loss of tensile ductility in plain-carbon steels under exposure to high-pressure gaseous hydrogen. International Journal of Hydrogen Energy. 46 [9] (2021) 6945-6959 10.1016/j.ijhydene.2020.11.137
2020
  1. Yuhei Ogawa, Kensuke Umakoshi, Masami Nakamura, Osamu Takakuwa, Hisao Matsunaga. Hydrogen-assisted, intergranular, fatigue crack-growth in ferritic iron: Influences of hydrogen-gas pressure and temperature variation. International Journal of Fatigue. 140 (2020) 105806 10.1016/j.ijfatigue.2020.105806
  2. Yuhei Ogawa, Hyuga Hosoi, Kaneaki Tsuzaki, Timothée Redarce, Osamu Takakuwa, Hisao Matsunaga. Hydrogen, as an alloying element, enables a greater strength-ductility balance in an Fe-Cr-Ni-based, stable austenitic stainless steel. Acta Materialia. 199 (2020) 181-192 10.1016/j.actamat.2020.08.024 Open Access
  3. Kevinsanny, Saburo Okazaki, Osamu Takakuwa, Yuhei Ogawa, Yusuke Funakoshi, Hideto Kawashima, Saburo Matsuoka, Hisao Matsunaga. Defect tolerance and hydrogen susceptibility of the fatigue limit of an additively manufactured Ni-based superalloy 718. International Journal of Fatigue. 139 (2020) 105740 10.1016/j.ijfatigue.2020.105740
  4. Yuya Tanaka, Saburo Okazaki, Yuhei Ogawa, Masahiro Endo, Hisao Matsunaga. Inability of precipitation-hardening to improve the fatigue limit of Ni-based superalloy 718 through a perspective of shear-mode cracking threshold. Materials Letters. 277 (2020) 128377 10.1016/j.matlet.2020.128377
  5. Yuhei Ogawa, Osamu Takakuwa, Saburo Okazaki, Yusuke Funakoshi, Saburo Matsuoka, Hisao Matsunaga. Hydrogen-assisted fatigue crack-propagation in a Ni-based superalloy 718, revealed via crack-path crystallography and deformation microstructures. Corrosion Science. 174 (2020) 108814 10.1016/j.corsci.2020.108814
  6. Osamu Takakuwa, Yuhei Ogawa, Saburo Okazaki, Masami Nakamura, Hisao Matsunaga. A mechanism behind hydrogen-assisted fatigue crack growth in ferrite-pearlite steel focusing on its behavior in gaseous environment at elevated temperature. Corrosion Science. 168 (2020) 108558 10.1016/j.corsci.2020.108558
  7. Naoaki Nagaishi, Saburo Okazaki, Yuhei Ogawa, Hisao Matsunaga. Dynamic improvement of fatigue strength via local phase transformation in a circumferentially-notched austenitic stainless steel under fully-reversed loading condition. Scripta Materialia. 176 (2020) 126-130 10.1016/j.scriptamat.2019.09.014
2019
  1. Kevinsanny, Saburo Okazaki, Osamu Takakuwa, Yuhei Ogawa, Koichi Okita, Yusuke Funakoshi, Junichiro Yamabe, Saburo Matsuoka, Hisao Matsunaga. Effect of defects and hydrogen on the fatigue limit of Ni-based superalloy 718. Procedia Structural Integrity. 19 (2019) 312-319 10.1016/j.prostr.2019.12.034 Open Access
  2. Yuhei Ogawa, Osamu Takakuwa, Saburo Okazaki, Koichi Okita, Yusuke Funakoshi, Hisao Matsunaga, Saburo Matsuoka. Pronounced transition of crack initiation and propagation modes in the hydrogen-related failure of a Ni-based superalloy 718 under internal and external hydrogen conditions. Corrosion Science. 161 (2019) 108186 10.1016/j.corsci.2019.108186
  3. Kentaro Wada, Junichiro Yamabe, Yuhei Ogawa, Osamu Takakuwa, Takashi Iijima, Hisao Matsunaga. Comparative study of hydrogen-induced intergranular fracture behavior in Ni and Cu–Ni alloy at ambient and cryogenic temperatures. Materials Science and Engineering: A. 766 (2019) 138349 10.1016/j.msea.2019.138349
  4. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen. Hydrogen-assisted crack propagation in α-iron during elasto-plastic fracture toughness tests. Materials Science and Engineering: A. 756 (2019) 396-404 10.1016/j.msea.2019.04.084
  5. Kevinsanny, Saburo Okazaki, Osamu Takakuwa, Yuhei Ogawa, Koichi Okita, Yusuke Funakoshi, Junichiro Yamabe, Saburo Matsuoka, Hisao Matsunaga. Effect of defects on the fatigue limit of Ni‐based superalloy 718 with different grain sizes. Fatigue &amp; Fracture of Engineering Materials &amp; Structures. 42 [5] (2019) 1203-1213 10.1111/ffe.12989
  6. Osamu Takakuwa, Yuhei Ogawa, Junichiro Yamabe, Hisao Matsunaga. Hydrogen-induced ductility loss of precipitation-strengthened Fe-Ni-Cr-based superalloy. Materials Science and Engineering: A. 739 (2019) 335-342 10.1016/j.msea.2018.10.040
2018
  1. Yuhei Ogawa, Saburo Okazaki, Osamu Takakuwa, Hisao Matsunaga. The roles of internal and external hydrogen in the deformation and fracture processes at the fatigue crack tip zone of metastable austenitic stainless steels. Scripta Materialia. 157 (2018) 95-99 10.1016/j.scriptamat.2018.08.003
  2. Yuhei Ogawa, Hisao Matsunaga, Junichiro Yamabe, Michio Yoshikawa, Saburo Matsuoka. Fatigue limit of carbon and Cr Mo steels as a small fatigue crack threshold in high-pressure hydrogen gas. International Journal of Hydrogen Energy. 43 [43] (2018) 20133-20142 10.1016/j.ijhydene.2018.09.026
  3. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen. Interpretation of hydrogen-assisted fatigue crack propagation in BCC iron based on dislocation structure evolution around the crack wake. Acta Materialia. 156 (2018) 245-253 10.1016/j.actamat.2018.06.041
  4. Yuhei Ogawa, Domas Birenis, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen. The role of intergranular fracture on hydrogen-assisted fatigue crack propagation in pure iron at a low stress intensity range. Materials Science and Engineering: A. 733 (2018) 316-328 10.1016/j.msea.2018.07.014
2017
  1. Yuhei Ogawa, Domas Birenis, Hisao Matsunaga, Annett Thøgersen, Øystein Prytz, Osamu Takakuwa, Junichiro Yamabe. Multi-scale observation of hydrogen-induced, localized plastic deformation in fatigue-crack propagation in a pure iron. Scripta Materialia. 140 (2017) 13-17 10.1016/j.scriptamat.2017.06.037
  2. Y. Ogawa, H. Matsunaga, J. Yamabe, M. Yoshikawa, S. Matsuoka. Unified evaluation of hydrogen-induced crack growth in fatigue tests and fracture toughness tests of a carbon steel. International Journal of Fatigue. 103 (2017) 223-233 10.1016/j.ijfatigue.2017.06.006
  3. Yuhei Ogawa, Junichiro Yamabe, Hisao Matsunaga, Saburo Matsuoka. Material performance of age-hardened beryllium–copper alloy, CDA-C17200, in a high-pressure, gaseous hydrogen environment. International Journal of Hydrogen Energy. 42 [26] (2017) 16887-16900 10.1016/j.ijhydene.2017.04.270

書籍 TSV

2024
  1. 松永久生, 山辺純一郎, 高桑脩, OGAWA, Yuhei, 松岡三郎. Hydrogen Gas Embrittlement: Mechanisms, Mechanics, and Design (English Edition). Hydrogen Gas Embrittlement: Mechanisms, Mechanics, and Design. Elsevier, 2024, 410.

会議録 TSV

2018
  1. Yuhei Ogawa, Dain Kim, Hisao Matsunaga, Saburo Matsuoka. Evaluation of the Compatibility of High-Strength Aluminum Alloy 7075-T6 to High-Pressure Gaseous Hydrogen Environments. Volume 6B: Materials and Fabrication. (2018) 10.1115/pvp2018-84321

口頭発表 TSV

2025
  1. Tatsuya Ito, OGAWA, Yuhei, Wu Gong, Takuro Kawasaki, OKADA, Kazuho, SHIBATA, Akinobu, Stefanus Harjo. Revealing the role of hydrogen in enhancing both strength and ductility of Type 310S austenitic steel via in situ neutron diffraction. MRM 2025 (Materials Research Meeting 2025). 2025
  2. GUTIERREZ URRUTIA, Ivan, OGAWA, Yuhei, SHIBATA, Akinobu. Contribution of the deformation structure to the hydrogen embrittlement resistance of an austenitic FeMnAlC low-density steel. 5th International Conference on Metals & Hydrogen. 2025
  3. 伊東達矢, 小川 祐平, Wu Gong, 川崎卓郎, 柴田 曉伸, Stefanus Harjo. その場中性子回折によるステンレス鋼のマルテンサイト変態および積層欠陥に対する水素の影響. 日本鉄鋼協会 2025年第190回秋季講演大会. 2025
  4. 小川 祐平, 柴田 曉伸. 水素を固溶したFCC鉄合金における塑性変形の熱活性化過程. 日本金属学会 2025年秋期 (第177回) 講演大会. 2025 招待講演
  5. 西田 会希, 小川 祐平, 柴田 曉伸. Fe-15Cr-15Niオーステナイト鋼の加工硬化挙動に及ぼす炭素の影響. 日本鉄鋼協会 2025年第190回秋季講演大会. 2025
  6. 伊東達矢, 小川 祐平, Wu Gong, 川崎卓郎, 柴田 曉伸, Stefanus Harjo. その場中性子回折による、低温変形中のSUS316Lのマルテンサイト変態に対する固溶水素の影響の評価. 日本鉄鋼協会 2025年第190回秋季講演大会. 2025
  7. 小川 祐平, 髙桑脩, 柴田 曉伸. フェライト鋼における水素ガス誘起疲労き裂進展～現象論と潜在機構～. 日本鉄鋼協会 2025年第190回秋季講演大会 シンポジウム 研究会II「水素脆化評価法に必須の要素技術の抽出」最終報告会. 2025
  8. GUTIERREZ URRUTIA, Ivan, OGAWA, Yuhei, SHIBATA, Akinobu. Hydrogen-induced effects on plasticity in austenitic steels: Role on deformation behavior and hydrogen embrittlement resistance. FEMS 2025 Euromat (18th European Congress and Exhibition on Advanced Materials and Processes). 2025 招待講演
  9. 伊東達矢, OGAWA, Yuhei, Wu Gong, 川崎卓郎, SHIBATA, Akinobu, Stefanus Harjo. In situ neutron diffraction study on the development of martensitic transformation in hydrogen-charged Type 316L steel at low temperature. International Conference on Martensitic Transformations (ICOMAT2025). 2025
  10. OGAWA, Yuhei, 髙桑脩. Fatigue crack growth in metastable austenitic stainless steels related to martensitic transformation-induced hydrogen embrittlement. International Conference on Martensitic Transformations (ICOMAT2025). 2025
  11. OGAWA, Yuhei, 髙桑脩, NISHIDA, Haruki, TSUZAKI, Kaneaki, SHIBATA, Akinobu. Potential role of solute hydrogen as strength and ductility improver in Fe-Cr-Ni austenitic steels. 6th International Conference on Structural Integrity (ICSI2025). 2025
  12. NISHIDA, Haruki, OGAWA, Yuhei, SHIBATA, Akinobu. Thermal activation behavior of dislocation motion in solid solution-strengthened Fe-Cr-Ni austenitic steel with interstitial carbon/hydrogen. 6th International Conference on Structural Integrity (ICSI2025). 2025
  13. GUTIERREZ URRUTIA, Ivan, OGAWA, Yuhei, SHIBATA, Akinobu. Hydrogen-related effects in austenitic steels: Contribution to deformation behavior and hydrogen embrittlement resistance. International Conference on Processing and Manufacturing of Advanced Materials (THERMEC' 2025) . 2025
  14. 髙桑 脩, OGAWA, Yuhei. Hydrogen-assisted Fracture in Ni-based Superalloy 718: Static/Dynamic Crack Propagation. Conference on Hydrogen in Materials 2025. 2025
  15. GUTIERREZ URRUTIA, Ivan, OGAWA, Yuhei, SHIBATA, Akinobu. Hydrogen-induced effects on plasticity in austenitic steels: contribution to hydrogen embrittlement resistance. The 20th International Conference on Strength of Material (ICSMA 20). 2025 招待講演
  16. OGAWA, Yuhei, 髙桑 脩. Hydrogen-assisted Fracture in Ni-based Superalloy 718: Criteria for Crack Initiation. Conference on Hydrogen in Materials 2025. 2025
  17. 伊東 達矢, OGAWA, Yuhei, Wu Gong, 川崎卓郎, SHIBATA, Akinobu, Stefanus Harjo. In situ neutron diffraction study of stacking fault energy in hydrogen-charged Type 310S austenitic steel at low temperatures. Conference on Hydrogen in Materials 2025. 2025
  18. 髙桑脩, 小川 祐平. Ni基超合金718の静的／動的水素助長き裂進展. 日本鉄鋼協会 第189回春季講演大会. 2025
  19. GUTIERREZ URRUTIA, Ivan, OGAWA, Yuhei, SHIBATA, Akinobu. Study of the influence hydrogen on the slip behavior in austenitic steels by advanced electron microscopy techniques. The 189th ISIJ Spring Meeting. 2025
  20. 西田 会希, 小川 祐平, 柴田 曉伸. 水素／炭素を添加したFe-Cr-Niオーステナイト鋼における固溶強化と転位運動の熱活性化挙動. 日本鉄鋼協会 第189回 2025年春季講演大会. 2025
  21. 小川 祐平, 髙桑脩, 森山潤一朗, 西田 会希, 津﨑 兼彰, 柴田 曉伸. 水素によるFe-Cr-Niオーステナイト鋼の力学特性向上効果：現象論と潜在機構. 日本鉄鋼協会 第189回 2025年春季講演大会. 2025 招待講演
2024
  1. 伊東達矢, OGAWA, Yuhei, Wu Gong, Wenqi Mao, 川崎 卓郎, OKADA, Kazuho, SHIBATA, Akinobu, Stefanus Harjo. In situ neutron diffraction study to elucidate hydrogen effect on the deformation mechanism in Type 310S austenitic stainless steel. The 7th International Symposium on Steel Science 2024. 2024
  2. 伊東 達矢, 小川 祐平, Gong Wu, 川崎卓郎, 柴田 曉伸, Harjo Stefanus. 低温引張変形における水素チャージSUS310Sの積層欠陥密度. 日本鉄鋼協会　第188回秋季講演大会. 2024
  3. 小川 祐平, 髙桑 脩, 津﨑 兼彰, 柴田 曉伸. オーステナイト鋼における力学特性向上元素としての水素. 日本金属学会　2024年秋季（第175回）講演大会. 2024 招待講演
  4. GUTIERREZ URRUTIA, Ivan, OGAWA, Yuhei, SHIBATA, Akinobu. Hydrogen-induced strain localization phenomena in an austenitic FeMnAlC low-density steel. The 188th ISIJ Autumn Meeting. 2024
  5. 小川 祐平, 柴田 曉伸. 水素添加したFe-Cr-Niオーステナイト鋼における熱活性化転位運動：室温クリープによる検討. 日本鉄鋼協会　第188回秋季講演大会. 2024
  6. OGAWA, Yuhei, 高桑 脩, TSUZAKI, Kaneaki, SHIBATA, Akinobu. Beneficial impacts of solute hydrogen against embrittlement in Fe-Cr-Ni austenitic steels. The 24th European Conference on Fracture (ECF2024). 2024
  7. 高桑 脩, OGAWA, Yuhei. Interpretation of hydrogen-assisted fatigue crack growth in ferrite-pearlite steel focusing on the thermally-activated hydrogen-dislocation interaction. The 24th European Conference on Fracture (ECF2024). 2024
  8. 伊東 達矢, OGAWA, Yuhei, Gong Wu, Mao Wenqi, 川崎 卓郎, OKADA, Kazuho, SHIBATA, Akinobu, Harjo Stefanus. In situ neutron diffraction analysis of the deformation mechanism in hydrogen-charged Fe-24Cr-19Ni-based austenitic stainless steel. The 24th European Conference on Fracture (ECF2024). 2024
  9. 伊東達矢, 小川 祐平, Gong Wu, 川崎卓郎, 柴田 曉伸, Harjo Stefanus. その場中性子回折によるSUS310Sの変形挙動に及ぼす固溶水素の影響の検討 . 第187回春季講演大会. 2024
  10. 小川 祐平, 野口耕平, 高桑脩. Ni基超合金718における水素脆性き裂の発生クライテリア. 日本鉄鋼協会　第187回春季講演大会. 2024
  11. グティエレス ウルティア イヴァン, 小川 祐平, 柴田 曉伸. Influence of hydrogen on the dislocation structure of an austenitic FeMnAlC low-density steel. The 187th ISIJ Spring Meeting. 2024
2023
  1. 藤田洸, OGAWA, Yuhei. Thermally Activated Dislocation Motion in Fe-Cr-Ni Austenitic Steel with Solute Hydrogen. MRM2023 IUMRS-ICA2023. 2023
  2. 小川 祐平. 水素固溶下におけるオーステナイト鋼の強度・変形特性. 日本機械学会 M&M2023 材料力学カンファレンス. 2023
  3. 小川 祐平, 西田会希, 高桑脩, 津﨑 兼彰. Fe-Ni-Crオーステナイト鋼における水素誘起変形双晶の連続EBSD観察. 第186回秋季講演大会. 2023
  4. 小川 祐平. Fe-Ni-Crオーステナイト鋼における水素誘起TWIP効果の現象論. 第186回秋季講演大会. 2023
  5. 栗山和大, 小川 祐平, 小山元道. 旧オーステナイト粒径の異なる1GPa級マルテンサイト鋼の水素ガス環境中における疲労き裂進展試験. 第186回秋季講演大会. 2023
  6. 伊東達矢, 小川 祐平, Wu Gong, 川崎卓郎, 岡田 和歩, 柴田 曉伸, Stefanus Harjo. その場中性子回折による水素添加SUS310Sの変形メカニズム解析. 日本金属学会 2023年（第173回）秋期講演大会. 2023
  7. 高桑脩, 小川 祐平. 転位―水素相互作用の熱活性化過程に着目した低炭素鋼の水素助長疲労き裂進展メカニズム. 第186回秋季講演大会. 2023
  8. 森山潤一朗, 高桑脩, 山口正剛, 小川 祐平, 津﨑 兼彰. 第一原理計算を用いたFe-Cr-Niオーステナイト合金中への水素固溶特性の検討：平均および局所水素濃度に与えるCr・Ni原子の影響. 第186回秋季講演大会. 2023
  9. 森山潤一朗, 高桑脩, 山口正剛, OGAWA, Yuhei, TSUZAKI, Kaneaki. First-principles study on the hydrogen absorption energy in Fe-Cr-Ni austenitic systems: Effect of Cr and Ni content. FEMS EUROMAT23. 2023
  10. OGAWA, Yuhei, 高桑脩. Fatigue crack propagation in ferritic iron under pressurized gaseous hydrogen. FEMS EUROMAT23. 2023
  11. 森山潤一朗, 高桑脩, 山口正剛, OGAWA, Yuhei, TSUZAKI, Kaneaki. First-principles study on the hydrogen absorption energy in Fe-Cr-Ni austenitic systems: Effect of Cr and Ni content. 5th International Conference on Structural Integrity (ICSI 2023). 2023
  12. OGAWA, Yuhei, 高桑脩. Hydrogen-assisted fatigue crack propagation in ferritic iron: An overview of macroscale behavior and microscale mechanisms. 5th International Conference on Structural Integrity (ICSI 2023). 2023
  13. 高桑脩, OGAWA, Yuhei. Hydrogen-accelerated/decelerated fatigue crack propagation in Ni-based superalloy 718. 5th International Conference on Structural Integrity (ICSI 2023). 2023 招待講演
  14. 小川 祐平, 高桑脩, 津﨑 兼彰. 水素固溶を利用した鉄鋼材料の高強度・高延性化. 日本機械学会 M&M・CMD若手シンポジウム2023. 2023
  15. 森山潤一朗, 高桑脩, 山口正剛, 小川 祐平, 津﨑 兼彰. 第一原理計算を用いたFe-Cr-Niオーステナイト合金中への水素固溶特性の検討：水素の溶解エネルギーと局所濃度分布に対するCr原子の役割. 第8回マルチスケール材料力学シンポジウム. 2023
  16. 高桑脩, 小川 祐平. 内部水素による析出強化型Ni基超合金718の疲労き裂進展加速/減速現象. 第8回マルチスケール材料力学シンポジウム. 2023
  17. 藤田 洸, 小川 祐平. 繰返し応力緩和試験によるオーステナイト鋼中の水素-転位間相互作用の解析. 日本鉄鋼協会 第185回春季講演大会. 2023
  18. 髙橋伸幸, 西村貴輝, 小川 祐平, 松永久生. 低Cマルテンサイト系ステンレス鋼の耐水素脆性に及ぼす焼戻し組織の影響. 日本鉄鋼協会 第185回春季講演大会. 2023
  19. 小川 祐平, 野口耕平, 高桑脩, 松永久生. Ni基超合金Alloy718の水素ガス環境脆化：支配要因とメカニズム. 日本鉄鋼協会 第185回春季講演大会. 2023 招待講演

その他の文献 TSV

2025
  1. 伊東 達矢, 小川 祐平, ゴン ウー, マオ ウェンチ, 川崎 卓郎, 岡田 和歩, 柴田 曉伸, ハルヨ ステファヌス. その場中性子回折を用いたSUS310Sステンレス鋼の水素添加による強さ・伸び向上メカニズムの解明. 日本中性子科学会誌「波紋」. 35 [3] (2025) 129-133
2024
  1. Tatsuya Ito, Yuhei Ogawa, Wu Gong, Wenqi Mao, Takuro Kawasaki, Kazuho Okada, Akinobu Shibata, Stefanus Harjo. In situ neutron diffraction study to elucidate hydrogen effect on the deformation mechanism in Type 310S austenitic stainless steel. Proceedings of International Symposia on Steel Science. 2024 [0] (2024) 237-240 10.2355/isijisss.2024.0_237 Open Access

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