Effects of equal channel angular extrusion on the microstructure and high-temperature mechanical properties of ZA85 magnesium alloy

▸ Average grain size of ZA85 alloy could be greatly reduced after ECAE at 180 °C. ▸ Precipitates of ZA85 alloy could be greatly refined after ECAE at 180 °C. ▸ RT and HT properties of ZA85 alloy could be improved after ECAE at 180 °C. ▸ Good high-temperature properties of ZA85 alloy is due to the refined grains and τ-phase.