Les alliages CuAlNi à mémoire de forme

CuAlNi shape memory alloys

Centre de Recherche Tréfimétaux, Sérifontaine

Abstract

To select a shape memory alloy for a particular application, both the cost and the alloy performance need to be considered. CuAlNi alloys are better than other Cu-based shape memory alloys in terms of their high transformation temperatures, thermal stability and fatigue properties. The present paper reviews some aspects of Trefimetaux’ industrial processing, the stability of material characteristics, i.e. transformation temperatures and mechanical behaviour, during thermal and stress cycling, and indicates also some applications developed with our customers.