Morphology and crystallography of Ti2Pd phase precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd alloys

M. Matsuda; D. Hashimoto; V. C. Solomon; M. Nishida

doi:10.1016/j.msea.2006.01.126

Morphology and crystallography of Ti₂Pd phase precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd alloys

M. Matsuda, D. Hashimoto, V. C. Solomon, M. Nishida

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

5 Citations (Scopus)

Abstract

Morphology and crystallography of Ti₂Pd phase of C11_b structure precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd shape memory alloy have been investigated by transmission electron microscopy observations. Three Ti₂Pd variants were recognized in the specimen aged above A_f temperature, i.e., in the B2 matrix. On the other hand, four Ti₂Pd variants were confirmed in the specimen aged below A_s temperature, i.e., in the B19 matrix. The orientation relationship between the Ti₂Pd precipitate and each matrix is consistent with the number of Ti₂Pd variants. The Ti₂Pd precipitates in the B2 and the B19 matrices have a disk and a polygonal plate shapes, respectively. The c-axis of Ti₂Pd precipitate in the B2 matrix is perpendicular to the disk surface. On the other hand, that in the B19 matrix is parallel to the plate surface. These differences are well explained by the magnitude of coherent strain.

Original language	English
Pages (from-to)	821-824
Number of pages	4
Journal	Materials Science and Engineering A
Volume	438-440
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.msea.2006.01.126
Publication status	Published - Nov 25 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1016/j.msea.2006.01.126

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title = "Morphology and crystallography of Ti2Pd phase precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd alloys",

abstract = "Morphology and crystallography of Ti2Pd phase of C11b structure precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd shape memory alloy have been investigated by transmission electron microscopy observations. Three Ti2Pd variants were recognized in the specimen aged above Af temperature, i.e., in the B2 matrix. On the other hand, four Ti2Pd variants were confirmed in the specimen aged below As temperature, i.e., in the B19 matrix. The orientation relationship between the Ti2Pd precipitate and each matrix is consistent with the number of Ti2Pd variants. The Ti2Pd precipitates in the B2 and the B19 matrices have a disk and a polygonal plate shapes, respectively. The c-axis of Ti2Pd precipitate in the B2 matrix is perpendicular to the disk surface. On the other hand, that in the B19 matrix is parallel to the plate surface. These differences are well explained by the magnitude of coherent strain.",

author = "M. Matsuda and D. Hashimoto and Solomon, {V. C.} and M. Nishida",

year = "2006",

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doi = "10.1016/j.msea.2006.01.126",

language = "English",

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journal = "Materials Science and Engineering A",

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TY - JOUR

T1 - Morphology and crystallography of Ti2Pd phase precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd alloys

AU - Matsuda, M.

AU - Hashimoto, D.

AU - Solomon, V. C.

AU - Nishida, M.

PY - 2006/11/25

Y1 - 2006/11/25

N2 - Morphology and crystallography of Ti2Pd phase of C11b structure precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd shape memory alloy have been investigated by transmission electron microscopy observations. Three Ti2Pd variants were recognized in the specimen aged above Af temperature, i.e., in the B2 matrix. On the other hand, four Ti2Pd variants were confirmed in the specimen aged below As temperature, i.e., in the B19 matrix. The orientation relationship between the Ti2Pd precipitate and each matrix is consistent with the number of Ti2Pd variants. The Ti2Pd precipitates in the B2 and the B19 matrices have a disk and a polygonal plate shapes, respectively. The c-axis of Ti2Pd precipitate in the B2 matrix is perpendicular to the disk surface. On the other hand, that in the B19 matrix is parallel to the plate surface. These differences are well explained by the magnitude of coherent strain.

AB - Morphology and crystallography of Ti2Pd phase of C11b structure precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd shape memory alloy have been investigated by transmission electron microscopy observations. Three Ti2Pd variants were recognized in the specimen aged above Af temperature, i.e., in the B2 matrix. On the other hand, four Ti2Pd variants were confirmed in the specimen aged below As temperature, i.e., in the B19 matrix. The orientation relationship between the Ti2Pd precipitate and each matrix is consistent with the number of Ti2Pd variants. The Ti2Pd precipitates in the B2 and the B19 matrices have a disk and a polygonal plate shapes, respectively. The c-axis of Ti2Pd precipitate in the B2 matrix is perpendicular to the disk surface. On the other hand, that in the B19 matrix is parallel to the plate surface. These differences are well explained by the magnitude of coherent strain.

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DO - 10.1016/j.msea.2006.01.126

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SN - 0921-5093

VL - 438-440

SP - 821

EP - 824

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

IS - SPEC. ISS.

ER -

Morphology and crystallography of Ti₂Pd phase precipitated in B2 parent and B19 martensite matrices in Ti-rich Ti-Pd alloys

Abstract

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