Asymmetric slip trace formation in tension/compression cyclic deformation of biomedical Co-Cr-Mo-N alloy with negative stacking fault energy

Takuya Mitsunobu, Yuichiro Koizumi, Byoung Soo Lee, Akihiko Chiba

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Surface relief formation of a biomedical Co-Cr-Mo-N (CCMN) alloy under tension/compression cyclic deformation has been investigated by in situ optical microscopy, atomic force microscopy and electron backscattering diffraction analysis. The formation of slip traces exhibited tension/compression asymmetry, resulting in unique surface reliefs. This is attributed to the motion of isolated Shockley partial dislocations in the metastable γ-face-centered cubic phase, in which the stacking fault energy is negative.

Original languageEnglish
Pages (from-to)52-55
Number of pages4
JournalScripta Materialia
Volume74
DOIs
Publication statusPublished - 2014 Mar

Keywords

  • Atomic force microscopy (AFM)
  • Biomedical cobalt-chromium-molybdenum alloy
  • Deformation structure
  • Martensitic phase transformation
  • Mechanical properties

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Asymmetric slip trace formation in tension/compression cyclic deformation of biomedical Co-Cr-Mo-N alloy with negative stacking fault energy'. Together they form a unique fingerprint.

Cite this