Abstract
Shape recovery through L1 0 -fcc order-disorder transformation of FePd is examined. Under a uniaxial compressive stress, a reversible shape change associated with the order-disorder transformation is observed. Shape memory characteristics (transformation strain, time required for the transformation and temperature hysteresis) for single-crystal and polycrystal specimens are determined by a compression test under a constant stress. The transformation strain (4% for a single crystal) and time required for disordering (about 10 s for a single crystal) are comparable with those of conventional martensitic shape memory alloys. The alloys can be used as shape memory materials with relatively high transformation temperature.
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