Transmission electron microscopy of twins in 10M martensite in Ni-Mn-Ga ferromagnetic shape memory alloy

Mitsuhiro Matsuda, Yoshihiro Yasumoto, Kimiaki Hashimoto, Toru Hara, Minoru Nishida

研究成果: Contribution to journalArticle査読

18 被引用数 (Scopus)

抄録

The combination of the 10M martensite plate variants in NiMnGa ferromagnetic shape memory alloy was investigated by conventional transmission electron microscopy (CTEM) and electron diffraction experiments. There were four plate variants commonly designated as A, B, C and D, and three fundamental plate combinations can be identified in a given plate group, namely A : B (C : D) of (551) Type II, A : C (B : D) of (125) Type I and A : D (B : C) of {105} compound twins in the martensites. The boundary structure of these twins was also observed in the edge-on state by high resolution electron microscopy (HREM). The boundary of the Type I and the compound twins was not sharp in comparison to that in other shape memory alloys. There were neither ledge nor step structures at the irrational boundary in the Type II twin.

本文言語英語
ページ(範囲)902-906
ページ数5
ジャーナルMaterials Transactions
53
5
DOI
出版ステータス出版済み - 2012

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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