Effects of static and dynamic strain aging on hydrogen embrittlement in twip steels containing al

Motomichi Koyama, Eiji Akiyama, Kaneaki Tsuzaki

研究成果: Article査読

21 被引用数 (Scopus)

抄録

Al effects on strain aging and resistance against hydrogen embrittlement were examined in Fe-18Mn- 0.6C-based twinning-induced plasticity steels deformed at different strain rates. These steels showed a hydrogen-induced fracture when they were pre-deformed at a strain rate of 1.7×10-6 s -1. This fracture was suppressed by increasing the strain rate and Al content. The two important factors for improving the resistance to hydrogen embrittlement from the viewpoint of material strengthening by strain aging were found to be (1) the suppression of dynamic strain aging by increasing the strain rate and Al content, and (2) the suppression of static strain aging under loading by the Al addition.

本文言語English
ページ(範囲)1268-1274
ページ数7
ジャーナルIsij International
53
7
DOI
出版ステータスPublished - 2013 9 4
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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