Texture and mechanical properties of cold-rolled Ti-26Nb-4Zr alloy plates

The effects of cold rolling and solution treatment on the texture and mechanical properties of Ti-26Nb-4Zr alloy plates were investigated by X-ray diffraction and tensile testing at room temperature. It is found that a 001〈uvw> rolling texture appears after 50% cold rolling. With increasing cold rolling reduction, a 121〈111> and 001 <110> mixed texture forms finally. The 〈110> direction turns from perpendicular to parallel to the rolling direction. After solution treatment at 800°, a 111 <110> recrystallization texture forms and its intensity increases with cold rolling reduction, while the (110) keeps parallel to the rolling direction. Due to work-hardening and refined crystal strengthening, the strength of the cold rolled plates increases while the plasticity decreases with the increase of cold rolling reduction. After solution treatment, the plasticity increases markedly because of the occurrence of recrystallization.