Texture and superelastic behavior of cold-rolled TiNbTaZr alloy

This work investigates the deformation texture and strain-induced α″ martensite texture of TiNbTaZr alloy during cold rolling. The alloy is rolled by 20% and 90% reductions without changing rolling direction. Textures of cold-rolled specimens are investigated by X-ray diffraction measurements. Besides {2 2 1}β〈1 1 4〉β twinning texture, {1 0 0}β〈0 0 1〉β texture is developed in the specimen with 20% reduction. In the 90% cold-rolled specimen, {1 0 0}β〈0 1 1〉β texture appears along rolling direction and strain-induced α″ martensite texture tends to [0 1 0] and [0 0 1] directions along rolling direction (RD) and transverse direction (TD), respectively. Superelastic strain (ɛSE) exhibits higher value along RD and TD. Pure elastic strain (ɛE) shows higher value along RD and 45° from RD.