Fatigue properties of TiNi shape memory alloy and applications to a heat engine and an actuator

doi:10.24423/aom.1556

Vol 51, No 6 (1999)

Fatigue properties of TiNi shape memory alloy and applications to a heat engine and an actuator

H. Tobushi, T. Nakahara, T. Hashimoto, Y. Shimeno, K. Tanaka

Arch. Mech. 51 (6), 833-845, 1999

Keywords:

Abstract

The fatiue properties of a TiNi shape-memory alloy (SMA) wire in the region of the marteusitic transformation and the R-phase transformation are investigated. The rotating-bending fatigue life of a wire in the region of the R-phase transformation is longer than 10⁷ cycles. A tilt-disk offset SMA heat engine and an indirect-heated SMA thermal actuator are developed.

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