High-resolution electron microscopy of dislocations in a B2-type intermetallic compound CoTi

D. Shindo, M. Yoshida, B. T. Lee, T. Takasugi, K. Hiraga

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Core structures of edge and screw dislocations in CoTi were studied by high-resolution electron microscopy (HREM). An HREM image of an edge dislocation showed that the spreading of the dislocation core was limited within a distance of about 1.2 nm. From an HREM image of screw dislocations in CoTi, it was shown that the core was spreading on the (010) plane and the spreading of the core was limited within a distance of about 1.8 nm. It was suggested that the core spreading on the {010} plane, which was different from the slip plane of {110}, affected the abnormal temperature dependence of yield stress of CoTi.

Original languageEnglish
Pages (from-to)167-171
Number of pages5
JournalIntermetallics
Volume3
Issue number2
DOIs
Publication statusPublished - 1995

Keywords

  • B2-type structure
  • CoTi
  • core spreading
  • high-resolution electron microscopy
  • yield stress

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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