The influence of moderate temperature treatment after quenching on thermal cycling behaviour and mechanical properties of the CuAlNiMnTi shape memory alloys have been investigated.It is shown that there will be α phase precipitation in the alloy when it is subjected to quenching followed by moderate temperature treatment at 600℃.The precipitation of α phase can suppress NiAl-base phase precipitation during subsequent thermal cycling,therefore the stabilization of transformation temperature during thermal cycling can be achieved.The suitable amount of α phase precipitation contributes to the improvement of mechanical properties of the alloy by changing the fracture morphology.
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