Comparison of in situ SEM and TEM observations of thermoelastic martensitic transformation in TiNi shape memory alloy

Y. Soejima, A. Heima, H. Akamine, T. Inamura, M. Nishida

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

To quantitatively understand the thin foil effect in in situ observations of the B2 to B19A transformation in TiNi alloy, the microstructure of the B19A martensite in thin foil and bulk specimens was compared. The transformation temperatures decreased with decreasing specimen thickness. There were large habit plane variants more than several tens of micrometers in size in the area of the specimen less than 10μm thick. The critical thicknesses for reproducing the transformation behavior in the bulk material was about 20μm based on the self-accommodation morphology and 4 μm based on the twin width ratio of the (011) type II twin.

本文言語英語
ページ(範囲)2107-2114
ページ数8
ジャーナルMaterials Transactions
61
11
DOI
出版ステータス出版済み - 9 18 2020

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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