Crystallography and morphology of various interfaces in Ti-Ni, Ti-Pd and Ni-Mn-Ga shape memory alloys

M. Nishida, T. Hara, M. Matsuda, S. Ii

研究成果: ジャーナルへの寄稿記事

23 引用 (Scopus)

抄録

Crystallography and morphology of various interfaces in Ti-Ni, Ti-Pd and Ni-Mn-Ga shape memory alloys are investigated by transmission electron microscopy. Neither ledge nor step structures are recognized at the irrational interface of the <0 1 1>B19′ type II twin in Ti-Ni martensite and the <1 2 1>B19 type II twin in Ti-Pd martensite in the two dimensional lattice image from the η1 direction. The combination of plate variants of the 10 and the 14 M Ni-Mn-Ga martensites is subsequently discussed. There are 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 type II, A: C (B: D) of type I and A: D (B: C) of compound twins in both the martensites. An interesting phenomenon is the migration of A: D boundary in the 10 M martensite during the observation. Finally, we present the atomic structures of {1 1 4}B2 Σ9 boundary in the B2 parent phase of Ti-Ni. The influence of heat treatment atmosphere on the boundary structures is also discussed.

元の言語英語
ページ(範囲)18-27
ページ数10
ジャーナルMaterials Science and Engineering A
481-482
発行部数1-2 C
DOI
出版物ステータス出版済み - 5 25 2008
外部発表Yes

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Crystallography
shape memory alloys
martensite
Shape memory effect
Martensite
crystallography
ledges
atomic structure
heat treatment
Heat treatment
titanium nickelide
Transmission electron microscopy
atmospheres
transmission electron microscopy

All Science Journal Classification (ASJC) codes

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

これを引用

Crystallography and morphology of various interfaces in Ti-Ni, Ti-Pd and Ni-Mn-Ga shape memory alloys. / Nishida, M.; Hara, T.; Matsuda, M.; Ii, S.

:: Materials Science and Engineering A, 巻 481-482, 番号 1-2 C, 25.05.2008, p. 18-27.

研究成果: ジャーナルへの寄稿記事

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abstract = "Crystallography and morphology of various interfaces in Ti-Ni, Ti-Pd and Ni-Mn-Ga shape memory alloys are investigated by transmission electron microscopy. Neither ledge nor step structures are recognized at the irrational interface of the <0 1 1>B19′ type II twin in Ti-Ni martensite and the <1 2 1>B19 type II twin in Ti-Pd martensite in the two dimensional lattice image from the η1 direction. The combination of plate variants of the 10 and the 14 M Ni-Mn-Ga martensites is subsequently discussed. There are 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 type II, A: C (B: D) of type I and A: D (B: C) of compound twins in both the martensites. An interesting phenomenon is the migration of A: D boundary in the 10 M martensite during the observation. Finally, we present the atomic structures of {1 1 4}B2 Σ9 boundary in the B2 parent phase of Ti-Ni. The influence of heat treatment atmosphere on the boundary structures is also discussed.",
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T1 - Crystallography and morphology of various interfaces in Ti-Ni, Ti-Pd and Ni-Mn-Ga shape memory alloys

AU - Nishida, M.

AU - Hara, T.

AU - Matsuda, M.

AU - Ii, S.

PY - 2008/5/25

Y1 - 2008/5/25

N2 - Crystallography and morphology of various interfaces in Ti-Ni, Ti-Pd and Ni-Mn-Ga shape memory alloys are investigated by transmission electron microscopy. Neither ledge nor step structures are recognized at the irrational interface of the <0 1 1>B19′ type II twin in Ti-Ni martensite and the <1 2 1>B19 type II twin in Ti-Pd martensite in the two dimensional lattice image from the η1 direction. The combination of plate variants of the 10 and the 14 M Ni-Mn-Ga martensites is subsequently discussed. There are 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 type II, A: C (B: D) of type I and A: D (B: C) of compound twins in both the martensites. An interesting phenomenon is the migration of A: D boundary in the 10 M martensite during the observation. Finally, we present the atomic structures of {1 1 4}B2 Σ9 boundary in the B2 parent phase of Ti-Ni. The influence of heat treatment atmosphere on the boundary structures is also discussed.

AB - Crystallography and morphology of various interfaces in Ti-Ni, Ti-Pd and Ni-Mn-Ga shape memory alloys are investigated by transmission electron microscopy. Neither ledge nor step structures are recognized at the irrational interface of the <0 1 1>B19′ type II twin in Ti-Ni martensite and the <1 2 1>B19 type II twin in Ti-Pd martensite in the two dimensional lattice image from the η1 direction. The combination of plate variants of the 10 and the 14 M Ni-Mn-Ga martensites is subsequently discussed. There are 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 type II, A: C (B: D) of type I and A: D (B: C) of compound twins in both the martensites. An interesting phenomenon is the migration of A: D boundary in the 10 M martensite during the observation. Finally, we present the atomic structures of {1 1 4}B2 Σ9 boundary in the B2 parent phase of Ti-Ni. The influence of heat treatment atmosphere on the boundary structures is also discussed.

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