Study on the Effect of Temperature on the Microstructure and Properties of AZ31 Magnesium Alloy Sheet Rolled in Single Pass under High Pressure

The single-pass rolling test was carried out on AZ31 magnesium alloy sheet with a thickness of 1.3mm at room temperature and heated to 350°C different reduction rates. microstructure mechanical properties were contrastively analyzed, the nucleation process twinning dynamic recrystallization analyzed. results showed that twin main mechanism coordinate large deformation increase rate, grain boundary involved in coordination high temperature. When rate large, shear band would appear, which had significant weakening effect material, appear earlier temperatures. reason for formation energy lower twin, only short small angular could induce nucleation.