Effect of microstructures and texture development on tensile properties of Mg-10Gd-3Y alloy

▶ Hot extrusion and heat treatments can affect significantly the microstructure and texture of the as-cast Mg-10Gd-3Y alloy. ▶ The dominant strengthening mechanism for the as-extruded alloy is grain boundary strengthening induced by grain refinement and texture strengthening induced by extrusion. ▶ The main contribution to the mechanical properties of aging-treated as-extruded alloys is precipitation strengthening. ▶ The Mg-10Gd-3Y alloys under different conditions exhibit different tensile fracture mechanism.