Microstructure evolution and texture tailoring during hot compression at low temperatures of an extruded dilute Mg-0.5Sn-0.5Zn-0.5Al alloy

Microstructure evolution and texture tailoring of an extruded dilute Mg-0.5Sn-0.5Zn-0.5Al alloy were studied by uniaxial compression at temperatures ranging from 125 degrees C to 200 degrees C with a high strain rate of 10 s(-1). The results indicated that {10-11}-{10-12} double twinning dominated the deformation, and the corresponding size was strongly dependent on the deformation temperature during hot compression. Texture evolution was thoroughly investigated in terms of type/fraction of twins and dynamic recrystallized grains. Moreover, the effect of {10-11}-{10-12} double twin size on texture evolution under different compression temperatures was investigated systematically. These findings are beneficial for the control of deformation conditions of dilute Mg-Sn-based alloys with the aim of enhancing their performances during post-deformation process at low temperatures.