Deformation mode in biomedical Co-27% Cr-5% Mo alloy consisting of a single hexagonal close-packed structure

Hiroaki Matsumoto, Shingo Kurosu, Byoung Soo Lee, Yunping Li, Akihiko Chiba

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The deformation mode of polycrystalline Co-27Cr-5Mo (in mass%) alloy consisting of the hexagonal close-packed phase was examined. Basal 〈a〉 and prismatic 〈a〉 slips were the dominant deformation modes. The activation of these 〈a〉 slips is strongly dependent on Schmid factor, which indicates that the values of critical resolved shear stress for basal 〈a〉 slip and prismatic 〈a〉 slip are similar. For tensile strains up to 10%, the frequent occurrence of deformation twins could not be confirmed by electron backscattered diffraction analysis.

Original languageEnglish
Pages (from-to)1092-1095
Number of pages4
JournalScripta Materialia
Volume63
Issue number11
DOIs
Publication statusPublished - 2010 Nov 1

Keywords

  • Biomedical cobalt-chromium-molybdenum alloy
  • Deformation mode
  • Dislocation slip
  • Hcp structure

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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