A visco-plastic self-consistent analysis of tailored texture on plastic deformation behavior of AZ31 magnesium alloy sheet

Effects of texture on micromechanics, texture evolution and macromechanics of AZ31 magnesium alloy sheets with tailored textures during plastic deformation are thoroughly investigated by visco-plastic self-consistent (VPSC) analysis. These simulated results confirm that as for in-plane tension (IPT), activities of basal slip and $$\{ 10\overline{1}2\}$$ extension twin (ET) are mainly responsible for the observed texture characteristics of all deformed samples. In addition, activities of prismatic slip and $$\{ 10\overline{1}2\}$$ ET in samples with bimodal texture are highly related to the loading direction. With regard to in-plane shear (IPS), sample with weak basal texture possesses the largest activity of prismatic slip. Moreover, basal slip and prismatic slip collectively contribute to the rotation of tilted basal poles in (0002) pole figure, whereas pyramidal slip and $$\{ 10\overline{1}2\}$$ ET are advantageous to the rotation of tilted basal poles away from normal direction (ND) with increasing plastic strain. In terms of plane strain compression (PSC), $$\{ 10\overline{1}2\}$$ ET and prismatic slip largely participate in plastic deformation of samples with four-peak texture and annular (ring-shaped) texture, namely, $$\{ 10\overline{1}2\}$$ ET leads to the rotation of tilted basal poles toward ND during PSC and prismatic slip causes the formation of a small annular texture component after a relatively large plastic strain.