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Stress-induced reverse martensitic transformation in a Ti-51Ni (at%) alloy aged under uniaxial stress.

ABSTRACT: Ti-51Ni (at%) alloys including coherent precipitates of Ti₃Ni₄ exhibits thermally-induced B2-R transformation. If the Ti₃Ni₄ is formed under tensile stress, it orientates preferentially so that its habit plane becomes perpendicular to the tensile axis. In such specimens, stress-induced reverse R-B2 transformation is reported to occur. In the present study, the stress-induced reverse R-B2 transformation behavior was studied by infrared camera and in situ X-ray analysis. The infrared camera observation revealed that the temperature of the specimen decreases homogeneously by the application of tensile stress within the resolution of the camera. The in situ X-ray analysis revealed that stress-induced reverse R-B2 transformation and rearrangement of variants of the R-phase occurs simultaneously in the specimen.

SUBMITTER: Xiao F

PROVIDER: S-EPMC5904179 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Stress-induced reverse martensitic transformation in a Ti-51Ni (at%) alloy aged under uniaxial stress.

Xiao Fei F Chen Hong H Jin Xuejun X Nie Zhihua Z Kakeshita Tomoyuki T Fukuda Takashi T

Scientific reports 20180417 1

Ti-51Ni (at%) alloys including coherent precipitates of Ti3Ni4 exhibits thermally-induced B2-R transformation. If the Ti3Ni4 is formed under tensile stress, it orientates preferentially so that its habit plane becomes perpendicular to the tensile axis. In such specimens, stress-induced reverse R-B2 transformation is reported to occur. In the present study, the stress-induced reverse R-B2 transformation behavior was studied by infrared camera and in sit ...[more]

PMID: 29666459

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