Crystallography and morphology of twins in equiatomic TiPt martensite

M. Nishida; M. Matsuda; Y. Yasumoto; S. Yano; Y. Yamabe-Mitarai; T. Hara

doi:10.1179/174328408X302549

Crystallography and morphology of twins in equiatomic TiPt martensite

M. Nishida, M. Matsuda, Y. Yasumoto, S. Yano, Y. Yamabe-Mitarai, T. Hara

Materials Physics and Engineering

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Twins in the B19 (2H) martensite in Ti-Pt shape memory alloy have been investigated by transmission electron microscopy. There are three twinning modes evident, i.e. {111}_2H Type I, 〈121〉_2H Type II and {101}_2H compound twins. In addition to the 2H martensite, various long period stacking structures are observed such as 21̄12̄ stacking and incommensurate like modulated martensites. It Is frequently observed that two martensite structures derived from the identical closed packed plane of the parent phase coexist in the same area, namely, 'two-in-one' morphology. The crystallographic aspects of the 'two-in-one' morphology are also discussed.

Original language	English
Pages (from-to)	884-889
Number of pages	6
Journal	Materials Science and Technology
Volume	24
Issue number	8
DOIs	https://doi.org/10.1179/174328408X302549
Publication status	Published - 2008

All Science Journal Classification (ASJC) codes

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

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title = "Crystallography and morphology of twins in equiatomic TiPt martensite",

abstract = "Twins in the B19 (2H) martensite in Ti-Pt shape memory alloy have been investigated by transmission electron microscopy. There are three twinning modes evident, i.e. {111}2H Type I, 〈121〉2H Type II and {101}2H compound twins. In addition to the 2H martensite, various long period stacking structures are observed such as 2{\=1}1{\=2} stacking and incommensurate like modulated martensites. It Is frequently observed that two martensite structures derived from the identical closed packed plane of the parent phase coexist in the same area, namely, 'two-in-one' morphology. The crystallographic aspects of the 'two-in-one' morphology are also discussed.",

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AU - Nishida, M.

AU - Matsuda, M.

AU - Yasumoto, Y.

AU - Yano, S.

AU - Yamabe-Mitarai, Y.

AU - Hara, T.

PY - 2008

Y1 - 2008

N2 - Twins in the B19 (2H) martensite in Ti-Pt shape memory alloy have been investigated by transmission electron microscopy. There are three twinning modes evident, i.e. {111}2H Type I, 〈121〉2H Type II and {101}2H compound twins. In addition to the 2H martensite, various long period stacking structures are observed such as 21̄12̄ stacking and incommensurate like modulated martensites. It Is frequently observed that two martensite structures derived from the identical closed packed plane of the parent phase coexist in the same area, namely, 'two-in-one' morphology. The crystallographic aspects of the 'two-in-one' morphology are also discussed.

AB - Twins in the B19 (2H) martensite in Ti-Pt shape memory alloy have been investigated by transmission electron microscopy. There are three twinning modes evident, i.e. {111}2H Type I, 〈121〉2H Type II and {101}2H compound twins. In addition to the 2H martensite, various long period stacking structures are observed such as 21̄12̄ stacking and incommensurate like modulated martensites. It Is frequently observed that two martensite structures derived from the identical closed packed plane of the parent phase coexist in the same area, namely, 'two-in-one' morphology. The crystallographic aspects of the 'two-in-one' morphology are also discussed.

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