On the effect of hydrogen on plastic instabilities in metals

Y. Liang, Petros Athanasios Sofronis, N. Aravas

研究成果: Contribution to journalArticle

105 引用 (Scopus)

抜粋

Experimental observations and theoretical calculations have demonstrated that hydrogen solute atoms increase the dislocation mobility in metals and alloys, thus promoting highly localized plastic processes which eventually lead to localized ductile rupture. While the underlying mechanism for hydrogen-enhanced dislocation mobility is well understood, little is known on how this mechanism acting at the microscale can lead to macroscopic plastic instability. In this paper, a theoretical investigation is carried out in a specimen under plane-strain tension in an effort to understand how hydrogen-induced softening and lattice dilatation at the microscale can lead to macroscopic i) shear localization (shear banding bifurcation) or ii) necking bifurcation.

元の言語英語
ページ(範囲)2717-2730
ページ数14
ジャーナルActa Materialia
51
発行部数9
DOI
出版物ステータス出版済み - 5 23 2003
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

フィンガープリント On the effect of hydrogen on plastic instabilities in metals' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用