High-temperature dislocation-precipitate interactions in Al alloys: An in situ transmission electron microscopy deformation study

B. G. Clark, Ian M. Robertson, L. M. Dougherty, D. C. Ahn, P. Sofronis

研究成果: Contribution to journalArticle査読

30 被引用数 (Scopus)

抄録

The fundamental processes controlling the high-temperature interaction of dislocations with precipitates in Al-alloys were investigated in real time by deforming specimens in situ in the transmission electron microscope at elevated temperature. The observations support a bypass mechanism involving the interaction of lattice dislocations with the precipitate-matrix interface dislocations, where the rate-limiting step in the interaction is the release of the dislocation from the particle. These observations are discussed in relation to high-temperature deformation processes and models.

本文言語英語
ページ(範囲)1792-1801
ページ数10
ジャーナルJournal of Materials Research
20
7
DOI
出版ステータス出版済み - 7 2005

All Science Journal Classification (ASJC) codes

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

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