Superelastic Properties of Aged FeNiCoAlTaB Cold-Rolled Shape Memory Alloys
Li-Wei Tseng,
Miao Song,
Wei-Cheng Chen
et al.
Abstract:In the present study, microstructure and cyclic tensile tests were used to measure the superelastic responses of Fe40.95Ni28Co17Al11.5Ta2.5B0.05 (at.%) shape memory alloys after 97% cold rolling. Cold-rolled samples underwent annealing heat treatment (1250 °C/1 h) followed by quenching in water or aging heat treatment (700 °C/6 h and 700 °C/12 h) followed by quenching in water. The microstructure results showed that the average grain size increased from 210 μm to 1570 μm as annealing times increased from 0.5 h… Show more
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