Tensile mechanical behavior and texture evolution of the weak texture Mg-1Al-0.5Mn-0.3Gd magnesium alloy

In this study, we utilized experiments and the Visco-plastic Self Consistent (VPSC) model to investigate the tensile mechanical behavior and texture evolution of the new weak texture Mg-1Al-0.5Mn-0.3Gd magnesium alloy, unlike the traditional strong basal texture. The result showed that the weak texture magnesium alloy exhibited good isotropic behavior during the tensile in various directions. In addition, we observed that it displayed similar macroscopic mechanical behavior and microscopic texture evolution rules. In particular, the increase in the prismatic < a > slip was significant in the early stages of plastic deformation, leading to a slightly higher flow stress along the rolling direction (RD) compared to the transverse direction (TD). In order to study the effect of {10-12} twinning on mechanical behavior and texture evolution, some scholars adopted inhibition of their activation for verification. However, in this paper, the effects of {10-12} twinning on mechanical behavior and texture evolution of magnesium alloys were verified by comparing only activating and only inhibiting {10-12} twinning, it was found that the activity of {10-12} twinning can significantly reduce the yield strength and strain hardening rate of the weak texture magnesium alloy during the tensile along TD.