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

Fei Xiao, Hong Chen, Xuejun Jin*, Zhihua Nie, Tomoyuki Kakeshita, Takashi Fukuda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

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.

Original languageEnglish
Article number6099
JournalScientific Reports
Volume8
Issue number1
DOIs
Publication statusPublished - 1 Dec 2018

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Xiao, F., Chen, H., Jin, X., Nie, Z., Kakeshita, T., & Fukuda, T. (2018). Stress-induced reverse martensitic transformation in a Ti-51Ni (at%) alloy aged under uniaxial stress. Scientific Reports, 8(1), Article 6099. https://doi.org/10.1038/s41598-018-24411-1