Hydrogen Embrittlement of Ultra High Strength Low Alloy TRIP-aided Steels

Tomohiko Hojo, Sung Moo Song, Koh Ichi Sugimoto, Akihiko Nagasaka, Shushi Ikeda, Hiroshi Akamizu, Masami Mayuzumi

研究成果: Article査読

18 被引用数 (Scopus)

抄録

The amount of charged hydrogen and its effect on ductility in three kinds of ultra high strength low alloy TRIP-aided steels with different matrix structure were investigated. These TRIP-aided steels, especially the TRIP-aided steels with bainitic ferrite matrix, were charged hydrogen more than the conventional tempered martensitic steel. This was principally associated with retained austenite trapped so much hydrogen in solute. Hydrogen embrittlement was considerably suppressed in the TRIP-aided steels, especially in the TRIP-aided steel with annealed martensite matrix. It was considered that the scanty hydrogen embrittlement of the steel was caused by trapping of much hydrogen into retained austenite, uniform fine structure, TRIP effect of retained austenite and appearance of quasi-dimple fracture.

本文言語English
ページ(範囲)177-182
ページ数6
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
90
3
DOI
出版ステータスPublished - 2004 3
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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