Role of Crystal Orientation in the Dynamic Strength of Magnesium Alloy AZ31B

Abstract The effect of grain orientation distribution on the dynamic strength highly textured magnesium alloy AZ31B has been studied in a series plate-impact experiments. Specimens with thicknesses between 0.45 mm and 2 were cut parallel perpendicular to material extrusion direction shock loaded impact stresses 1.4 GPa 3.4 GPa. is found be dependent loading direction, along exhibiting significantly higher Hugoniot elastic limits than transverse including much slower precursor decay rate. Application an orientation-based analysis framework shows that yield point polycrystalline can predicted reasonably well from its distribution, predicated upon use critical resolved shear stress values single-crystal data modified by fitted strengthening factor. It shown strong dependence Mg AZ31 caused relative differences slip system activity anisotropies inherent hexagonal close packed crystal structure.