Abstract
A series of Cu
50
-Al
50−x
-Ni
x
(x≥0) alloys exhibit stress-driven thermo elastic martensite transformation, which involves the ability to cover the desired shape at different temperatures. On cooling from high temperature, a displacive character of the transition is achieved, which confers it to the shape memory effect. The observed solidification rate effect on the martensite state was also taken into account. It allows explaining its sensitivity to the thermal treatments, which change the relative stability of both the parent phases existing prior to the transformation and the martensite. Resistance and mechanical measurements are also quantified.