Tensile properties of extruded Mg–8Sn–1Zn alloys subjected to different heat treatments

Abstract
The tensile properties of extruded Mg–8Sn–1Zn alloys subjected to different heat treatments have been investigated. At room temperature, the alloy heat-treated at 500°C showed higher strength and ductility than the alloy heat-treated at 420°C. At 200°C, the former showed much larger tensile elongations than the latter, exhibiting 670% at a strain rate of 1.0 × 10−4 s−1. The better tensile properties in the former are attributed to grain refinement and the larger quantity of fine Mg2Sn particles.