Mechanical properties of Mg–Al–Zn alloy with a tilted basal texture obtained by differential speed rolling

The mechanical properties of the differential-speed-rolled Mg–3Al–1Zn alloy sheet with a basal pole tilted at about 15° in the rolling direction were systematically investigated at room temperature. Compared with the normal symmetrically rolled sheet exhibiting approximately the same average grain size, the uniform elongation and the strain hardening exponent increased while the proof stress and the Lankford value decreased especially in the rolling direction. The c-axis tilted texture activated the { 1 0 1 ¯ 2 } extension twinning at the early stage of tensile deformation, and depressed the dynamic recovery and in turn enhanced the uniform elongation. The initial texture had a significant influence on the deformation at the initial stage while it showed a much weaker effect on the deformation after reaching the strain instability condition.