Hydrogen embrittlement properties of ultra high-strength low alloy TRIP-aided steels with bainitic ferrite matrix

Tomohiko Hojo, Koh Ichi Sugimoto, Yoh Ichi Mukai, Hiroshi Akamizu, Shushi Ikeda

研究成果: Article査読

21 被引用数 (Scopus)

抄録

Hydrogen absorption behavior and hydrogen embrittlement properties of 1000-1800 MPa grade ultra high-strength low alloy TRIP-aided steels with bainitic ferrite matrix were investigated. The TRIP-aided steels absorbed a large amount of hydrogen, compared with the conventional tempered martensitic and bainitic steels. It was expected that the absorbed hydrogen was principally trapped in interlath retained austenite films and along bainitic ferrite lath boundary. Superior hydrogen embrittlement performances such as low hydrogen embrittlement susceptibility and high delayed fracture strength were achieved in the TRIP-aided steel. This may be associated with hydrogen trapping effect and TRIP effect of retained austenite.

本文言語English
ページ(範囲)83-89
ページ数7
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
92
2
DOI
出版ステータスPublished - 2006 2
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • 金属および合金
  • 材料化学

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