A micromechanics approach to the study of hydrogen transport and embrittlement

A. Taha, P. Sofronis

研究成果: Contribution to journalArticle査読

170 被引用数 (Scopus)

抄録

The mechanisms of hydrogen related fracture are briefly outlined. Previous investigations on the physics and treatment of the hydrogen transport processes are reviewed. A hydrogen diffusion model based on the interaction of hydrogen induced strain in the lattice with local material elastoplasticity is presented. Finite element studies were carried out to analyze the hydrogen distribution in the neighborhood of a blunting crack tip under small scale yielding conditions and in the neighborhood of a rounded notch in a four-point bend specimen. The calculated hydrogen concentration profiles and experimental observations of embrittlement in high strength steels are used to make evaluative statements on the occurrence of the first microcracking event.

本文言語英語
ページ(範囲)803-837
ページ数35
ジャーナルEngineering Fracture Mechanics
68
6
DOI
出版ステータス出版済み - 3 21 2001
外部発表はい

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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