Anomalous behavior of hydrogen embrittlement and corrosion induced by hydrogen absorption during corrosion for high corrosion resistant alloys

• Project/Area Number: 15K06507
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Kyushu Institute of Technology
• Principal Investigator: Yokoyama Ken'ichi 九州工業大学, 大学院工学研究院, 准教授 (80308262)
• Co-Investigator(Kenkyū-buntansha): 酒井 潤一 早稲田大学, 理工学術院, 名誉教授 (90329095)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 腐食防食 / 水素脆性 / 老朽化 / 破壊 / 生体材料

Outline of Final Research Achievements

We have elucidated that anomalous behavior of hydrogen embrittlement and corrosion induced by the hydrogen absorption during corrosion for high corrosion resistant alloys including stainless steel and Ni-Ti superelastic alloy by various tests such as hydrogen thermal desorption analysis and electrochemical measurements. The behavior of the alloys often differs from that of high strength steels. In particular, the dynamic interactions between hydrogen and the martensite transformation markedly affect the hydrogen embrittlement and corrosion behavior. The findings obtained in the present study are expected to the guide for the measurements of the life time and the improvements of reliability for high corrosion resistant alloys.

Research Products

• [Journal Article] Improved fracture properties of Ni-Ti superelastic alloy under sustained tensile load in physiological saline solution containing hydrogen peroxide by hydrogen charging (2018)
  • Author(s): Takehiro Shimada, Ken'ichi Yokoyama, Jun'ichi Sakai
  • Journal Title: Journal of Alloys and Compounds Volume: 752 Pages: 1-7
  • DOI: 10.1016/j.jallcom.2018.04.147
  • Peer Reviewed
• [Journal Article] After-effects induced by interactions between hydrogen and the martensite transformation in Ni-Ti superelastic alloy (2017)
  • Author(s): Ken'ichi Yokoyama, Yuki Hirata, Jun'ichi Sakai
  • Journal Title: Philosophical Magazine Letters Volume: 97 Issue: 9 Pages: 350-358
  • DOI: 10.1080/09500839.2017.1363423
  • Peer Reviewed
• [Journal Article] First interactions between hydrogen and stress-induced reverse transformation of Ni-Ti superelastic alloy (2017)
  • Author(s): Ken'ichi Yokoyama, Tatsuki Hashimoto, Jun'ichi Sakai
  • Journal Title: Philosophical Magazine Letters Volume: 97 Issue: 11 Pages: 459-468
  • DOI: 10.1080/09500839.2017.1409912
  • Peer Reviewed
• [Journal Article] Strong interactions between hydrogen in solid solution and stress-induced martensite transformation of Ni-Ti superelastic alloy (2017)
  • Author(s): Ken'ichi Yokoyama, Yuki Hirata, Toshiaki Inaba, Kenichiro Mutoh, Jun'ichi Sakai
  • Journal Title: Philosophical Magazine Letters Volume: 97 Issue: 1 Pages: 11-18
  • DOI: 10.1080/09500839.2016.1262561
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Effects of temperature, phase, elastic deformation and transformation on inhibition of localized corrosion of hydrogen-charged Ni-Ti superelastic alloy in NaCl solution (2016)
  • Author(s): Shigekazu Nishimoto, Ken’ichi Yokoyama, Toshiaki Inaba, Kenichiro Mutoh, Jun’ichi Sakai
  • Journal Title: Journal of Alloys and Compounds Volume: in press
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] SUS316Lステンレス鋼の水素脆化挙動 －加工誘起マルテンサイト変態と水素との相互作用によって導入された欠陥の影響－ (2018)
  • Author(s): 二町啓亮, 横山賢一
  • Organizer: 日本金属学会
• [Presentation] 微量水素添加したNi-Ti超弾性合金の過酸化水素含有生理食塩水中における腐食破壊抑制 (2017)
  • Author(s): 島田健弘, 横山賢一, 酒井潤一
  • Organizer: 日本金属学会
  • Place of Presentation: 首都大学東京
  • Year and Date: 2017-03-15
• [Presentation] 水素と応力誘起変態との相互作用によって導入された欠陥によるNi-Ti超弾性合金の脆化 (2017)
  • Author(s): 島田健弘, 横山賢一, 酒井潤一
  • Organizer: 日本金属学会
• [Presentation] TiNi超弾性合金における水素の存在状態と劣化特性 (2017)
  • Author(s): 島田健弘, 横山賢一
  • Organizer: 形状記憶合金協会
• [Presentation] TiNi超弾性合金の生体環境における腐食と水素脆化 (2017)
  • Author(s): 横山賢一
  • Organizer: 形状記憶合金協会
  • Invited
• [Presentation] Ni-Ti超弾性合金の塑性変形に及ぼす水素の影響 (2016)
  • Author(s): 島田健弘, 横山賢一, 稲葉年昭, 酒井潤一
  • Organizer: 日本金属学会
  • Place of Presentation: 大阪大学
  • Year and Date: 2016-09-21
• [Presentation] SUS316Lステンレス鋼の水素脆化挙動－加工誘起マルテンサイト変態と水素との相互作用に及ぼすオーステナイト安定性の影響－ (2016)
  • Author(s): 中村仁美, 横山賢一, 酒井潤一
  • Organizer: 日本金属学会
  • Place of Presentation: 大阪大学
  • Year and Date: 2016-09-21
• [Presentation] 水素チャージした純Taの時効による水素脆化促進 (2016)
  • Author(s): 中田昂志, 横山賢一, 酒井潤一
  • Organizer: 日本金属学会
  • Place of Presentation: 東京理科大学
  • Year and Date: 2016-03-23
• [Presentation] 純Ｔｉの水中摩耗による水素吸収 (2016)
  • Author(s): 横山賢一, 岡田桃子, 酒井潤一
  • Organizer: 日本金属学会
  • Place of Presentation: 東京理科大学
  • Year and Date: 2016-03-23
• [Presentation] 水素化物の析出形態制御による純Tiの室温クリープ特性の改善 (2015)
  • Author(s): 永友洸希, 横山賢一, 酒井潤一
  • Organizer: 日本金属学会
  • Place of Presentation: 九州大学
  • Year and Date: 2015-09-16
• [Presentation] Ni-Ti超弾性合金における応力誘起逆変態と水素との相互作用 (2015)
  • Author(s): 橋本樹, 横山賢一, 稲葉年昭, 武藤兼一郎, 酒井潤一
  • Organizer: 日本金属学会
  • Place of Presentation: 九州大学
  • Year and Date: 2015-09-16
• [Presentation] SUS304ステンレス鋼のひずみ誘起マルテンサイト変態と水素との相互作用－粒界破面に及ぼすひずみ速度の影響－ (2015)
  • Author(s): 中村仁美, 横山賢一, 酒井潤一
  • Organizer: 日本金属学会
  • Place of Presentation: 九州大学
  • Year and Date: 2015-09-16