Study of R-phase transformation in a Ti-50.7at%Ni alloy by in-situ transmission electron microscopy observations

W. Cai, Y. Murakami, K. Otsuka

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Abstract

The R-phase transformation in a Ti-50.7at%Ni alloy was investigated by in-situ transmission electron microscopy (TEM) observations using double-tilt cooling stages, and the incommensurability of 1/3 diffuse scattering in the process of the transformation was examined by using imaging plates. It is shown that the incommensurate diffuse scattering exists in the parent phase within a wide temperature range above the Rs temperature and that the incommensurability decreases with decreasing temperature. The R-phase transformation starts at the Rs temperature where the electrical resistance starts to increase and the R-phase is commensurate even in the state just after formation.

Original languageEnglish
Pages (from-to)186-189
Number of pages4
JournalMaterials Science and Engineering A
Volume273-275
Publication statusPublished - Dec 15 1999
Externally publishedYes

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All Science Journal Classification (ASJC) codes

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

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