Hydrogen-enhanced localized plasticity-a mechanism for hydrogen-related fracture

H. K. Birnbaum, P. Sofronis

研究成果: ジャーナルへの寄稿記事

1157 引用 (Scopus)

抜粋

The mechanisms of hydrogen-related fracture are briefly reviewed and a few evaluative statements are made about the stress-induced hydride formation, decohesion, and hydrogen-enhanced localized plasticity mechanisms. A more complete discussion of the failure mechanism based on hydrogen-enhanced dislocation mobility is presented, and these observations are related to measurements of the macroscopic flow stress. The effects of hydrogen-induced slip localization on the measured flow stress is discussed. A theory of hydrogen shielding of the interaction of dislocations with elastic stress centres is outlined. It is shown that this shielding effect can account for the observed hydrogen-enhanced dislocation mobility.

元の言語英語
ページ(範囲)191-202
ページ数12
ジャーナルMaterials Science and Engineering A
176
発行部数1-2
DOI
出版物ステータス出版済み - 3 31 1994
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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