Recent research on the elastic unstableness of shape memory alloy in martensite transformation by micro-high-speed photography

Jie Yang; Yuehua Wu; Tsuneyoshi Uyemura

doi:10.1117/12.145838

1 January 1993 Recent research on the elastic unstableness of shape memory alloy in martensite transformation by micro-high-speed photography

Jie Yang, Yuehua Wu, Tsuneyoshi Uyemura

Author Affiliations +

Proceedings Volume 1801, 20th International Congress on High Speed Photography and Photonics; (1993) https://doi.org/10.1117/12.145838
Event: 20th International Congress on High Speed Photography and Photonics, 1992, Victoria, BC, Canada

Abstract

The paper reports the research results on the phenomenon of elastic unstableness in martensite transformation of Cu-Al-Ni shape memory alloy (SMA). We use the method of micro-high speed photography. The martensite of Cu-Al-Ni SMA presents thermoelastic strain in the heating and cooling process. While the sample is heated to A_s, the martensite begins to contract and the temperature reaches A_f point, the martensite is gradually reducing. It is possible that the martensite suddenly disappears from certain visible size at the instant it is heated to A_f temperature.

Citation Download Citation

Jie Yang, Yuehua Wu, and Tsuneyoshi Uyemura "Recent research on the elastic unstableness of shape memory alloy in martensite transformation by micro-high-speed photography", Proc. SPIE 1801, 20th International Congress on High Speed Photography and Photonics, (1 January 1993); https://doi.org/10.1117/12.145838

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