Abstract
A single-phase wide-hysteresis shape memory alloy Ni50Mn25Ga17Cu8 is reported. This alloy undergoes martensitic transformation at 264 °C, and has transformation hysteresis of 40.4 °C, shape memory effect of 6.2%, compressive plasticity of 22%, and compressive strength of 878 MPa. The transformation hysteresis is further expanded by deformation in the martensite state.
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