Crystallography of deformation twin boundaries in a B2 type Ti-Ni alloy

M. Nishida, M. Matsuda, T. Fujimoto, K. Tanka, A. Kakisaka, H. Nakashima

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The deformation structure of B2 parent phase in Ti-Ni shape memory alloy around 573 K has been investigated by transmission electron microscopy. Serrations are seen in stress-strain curve, which corresponds to the formation of various planar defects of twin relation with respect to {1 1 2} {1 1 3}, {1 1 5}, {4 4 7} planes and so on. These defects can be expressed by particular Σ values on the basis of the coincidence site lattice model, since they are 〈1 1 0〉 symmetric tilt boundaries in a wide sense. It is also demonstrated that the sigma combination rule of the coincidence site lattice model can be applied to the triple junction of such defects.

Original languageEnglish
Pages (from-to)495-499
Number of pages5
JournalMaterials Science and Engineering A
Volume438-440
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - Nov 25 2006

All Science Journal Classification (ASJC) codes

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

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