Optimum rolling ratio for obtaining {001}<110Â > recrystallization texture in Ti-Nb-Al biomedical shape memory alloy

The rolling rate (r) dependence of textures was investigated in the Ti-26Nb-3Al (mol%) alloy to reveal the conditions required to form the {001}<110 > recrystallization texture, which is a desirable orientation for the β-titanium shape memory alloy. {001}<110 > was the dominant cold-rolling texture when r = 90% and it was transferred to the recrystallization texture without forming {112}<110 >, which is detrimental for the isotropic mechanical properties of the rolled sheet. A further increase in r resulted in the formation of {112}<110 > in both rolling and recrystallization textures. Therefore, r should be controlled to form only the {001}<110 > rolling texture, because the {112}<110 > texture can overwhelm the {001}<110 > texture during recrystallization.