Study of R-phase transformation in a Ti-50.7at%Ni alloy by in-situ transmission electron microscopy observations

W. Cai; Y. Murakami; K. Otsuka

doi:10.1016/s0921-5093(99)00367-6

Study of R-phase transformation in a Ti-50.7at%Ni alloy by in-situ transmission electron microscopy observations

W. Cai, Y. Murakami, K. Otsuka

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

20 Citations (Scopus)

Abstract

The R-phase transformation in a Ti-50.7at%Ni alloy was investigated by in-situ transmission electron microscopy (TEM) observations using double-tilt cooling stages, and the incommensurability of 1/3 diffuse scattering in the process of the transformation was examined by using imaging plates. It is shown that the incommensurate diffuse scattering exists in the parent phase within a wide temperature range above the Rs temperature and that the incommensurability decreases with decreasing temperature. The R-phase transformation starts at the Rs temperature where the electrical resistance starts to increase and the R-phase is commensurate even in the state just after formation.

Original language	English
Pages (from-to)	186-189
Number of pages	4
Journal	Materials Science and Engineering A
Volume	273-275
DOIs	https://doi.org/10.1016/s0921-5093(99)00367-6
Publication status	Published - 1999 Dec 15
Externally published	Yes

Keywords

Incommensurability
Martensite
Ni-Ti
R-phase

ASJC Scopus subject areas

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

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10.1016/s0921-5093(99)00367-6

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title = "Study of R-phase transformation in a Ti-50.7at%Ni alloy by in-situ transmission electron microscopy observations",

abstract = "The R-phase transformation in a Ti-50.7at%Ni alloy was investigated by in-situ transmission electron microscopy (TEM) observations using double-tilt cooling stages, and the incommensurability of 1/3 diffuse scattering in the process of the transformation was examined by using imaging plates. It is shown that the incommensurate diffuse scattering exists in the parent phase within a wide temperature range above the Rs temperature and that the incommensurability decreases with decreasing temperature. The R-phase transformation starts at the Rs temperature where the electrical resistance starts to increase and the R-phase is commensurate even in the state just after formation.",

keywords = "Incommensurability, Martensite, Ni-Ti, R-phase",

author = "W. Cai and Y. Murakami and K. Otsuka",

note = "Funding Information: The authors would like to express their appreciation to Professor D. Shindo, Drs X. Ren and T. Hara, and T. Tamiya, J. Zhang, T. Ishii and M. Inami for their help and useful discussion in the present experiment. This work was supported by a Grant-in-Aid for Research on Priority Area on Phase Transformations from the Ministry of Education, Science and Culture of Japan (1997–1999). W. Cai is a recipient of the JSPS Fellowship.",

year = "1999",

month = dec,

day = "15",

doi = "10.1016/s0921-5093(99)00367-6",

language = "English",

volume = "273-275",

pages = "186--189",

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T1 - Study of R-phase transformation in a Ti-50.7at%Ni alloy by in-situ transmission electron microscopy observations

AU - Cai, W.

AU - Murakami, Y.

AU - Otsuka, K.

N1 - Funding Information: The authors would like to express their appreciation to Professor D. Shindo, Drs X. Ren and T. Hara, and T. Tamiya, J. Zhang, T. Ishii and M. Inami for their help and useful discussion in the present experiment. This work was supported by a Grant-in-Aid for Research on Priority Area on Phase Transformations from the Ministry of Education, Science and Culture of Japan (1997–1999). W. Cai is a recipient of the JSPS Fellowship.

PY - 1999/12/15

Y1 - 1999/12/15

N2 - The R-phase transformation in a Ti-50.7at%Ni alloy was investigated by in-situ transmission electron microscopy (TEM) observations using double-tilt cooling stages, and the incommensurability of 1/3 diffuse scattering in the process of the transformation was examined by using imaging plates. It is shown that the incommensurate diffuse scattering exists in the parent phase within a wide temperature range above the Rs temperature and that the incommensurability decreases with decreasing temperature. The R-phase transformation starts at the Rs temperature where the electrical resistance starts to increase and the R-phase is commensurate even in the state just after formation.

AB - The R-phase transformation in a Ti-50.7at%Ni alloy was investigated by in-situ transmission electron microscopy (TEM) observations using double-tilt cooling stages, and the incommensurability of 1/3 diffuse scattering in the process of the transformation was examined by using imaging plates. It is shown that the incommensurate diffuse scattering exists in the parent phase within a wide temperature range above the Rs temperature and that the incommensurability decreases with decreasing temperature. The R-phase transformation starts at the Rs temperature where the electrical resistance starts to increase and the R-phase is commensurate even in the state just after formation.

KW - Incommensurability

KW - Martensite

KW - Ni-Ti

KW - R-phase

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VL - 273-275

SP - 186

EP - 189

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

ER -

Study of R-phase transformation in a Ti-50.7at%Ni alloy by in-situ transmission electron microscopy observations

Abstract

Keywords

ASJC Scopus subject areas

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