Understanding precursor phenomena for the R-phase transformation in Ti-Ni-based alloys

Daisuke Shindo, Yasukazu Murakami, Takuya Ohba

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

Precursor phenomena are critical issues for martensitic transformations. In this article, we show recent progress in understanding precursor phenomena to the R-phase transformation, which is important for both fundamentals and applications. Structural modulation in the parent phase was intensively studied by means of detailed analyses of the weak diffuse scattering of electrons with the aid of recently developed energy-filtered transmission electron microscopy coupled with x-ray diffraction. A peculiar domain-like structure, which originates from static transverse atomic displacements in the parent phase, was discovered by virtue of these advanced methods. The characteristics of this structure (e.g., size, shape, and temperature-dependence), as well as its role in the subsequent R-phase transformation, are discussed.

Original languageEnglish
Pages (from-to)121-127
Number of pages7
JournalMRS Bulletin
Volume27
Issue number2
DOIs
Publication statusPublished - 2002 Feb

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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