Tailoring the texture of magnesium alloy by twinning deformation to improve the rolling capability

A method to weaken the strong basal texture of rolled magnesium alloy by twinning deformation is reported. Pre-rolling along the transverse direction at room temperature initiates extension twinning and reorients the basal plane. A dramatically increased maximum thickness reduction per pass during subsequent rolling at 300 °C is achieved in pre-deformed sample compared to that of the directly rolled one. The corresponding mechanisms are addressed and discussed.

Research highlights► Pr-rolling along TD initiates (10–12) twins which incline basal plane by 86°. ► Inclination of basal plane can effectively improve rolling capability at 300 °C. ► Non-basal slip of 〈a〉 dislocation in pre-rolled sample can accommodate strain in ND.