In situ scanning electron microscopy study of the thermoelastic martensitic transformation in Ti-Ni shape memory alloy

Y. Soejima, S. Motomura, Masatoshi Mitsuhara, T. Inamura, Minoru Nishida

研究成果: ジャーナルへの寄稿記事

13 引用 (Scopus)

抄録

The thermoelastic martensitic transformation from the B2 to B19′ structures in the Ti-Ni shape memory alloy was observed by in situ scanning electron microscopy in order to investigate the self-accommodation microstructure. Nucleation of the V-shaped habit plane variant cluster (2HPVC) triggers the formation of the hexangular HPVC (6HPVC) that is formed by six habit plane variants in the grain interior. The triangular morphology (3HPVC) is a derivative of 2HPVC. The autocatalytic transformation spreads from the 6HPVCs to the grain boundary and the reverse transformation proceeds like a rewind of the forward transformation. 2HPVC and 6HPVC are the most favorable morphologies for nucleation and growth, respectively, as explained by the analysis of the kinematic compatibility at junction planes.

元の言語英語
ページ(範囲)352-360
ページ数9
ジャーナルActa Materialia
103
DOI
出版物ステータス出版済み - 1 15 2016

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Martensitic transformations
Shape memory effect
Nucleation
Scanning electron microscopy
Kinematics
Grain boundaries
Derivatives
Microstructure
titanium nickelide

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

これを引用

In situ scanning electron microscopy study of the thermoelastic martensitic transformation in Ti-Ni shape memory alloy. / Soejima, Y.; Motomura, S.; Mitsuhara, Masatoshi; Inamura, T.; Nishida, Minoru.

:: Acta Materialia, 巻 103, 15.01.2016, p. 352-360.

研究成果: ジャーナルへの寄稿記事

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