Texture and shape memory property of annealed Ti50Ni25Cu25 ribbons

Texture development and shape recovery strain of the annealed Ti50Ni25Cu25 ribbons were studied by using XRD and TMA. A pure strong [2 1 1] fiber texture existed in the 450 °C-annealed sample. Annealing at 550 °C and above changed the texture component in B19 martensite to (1 1 1) [ 7 ¯     1     5 ] and caused the formation of B11-TiCu precipitates. Shape recovery strain of the annealed ribbons decreased with the increase of annealing temperature.