Abstract:AZ31 was as the research object based on thermal simulator Gleeble1500 under the conditions of hot
compression experiment to obtain material stress鄄strain curve. Under different temperature and strain rate,using metal鄄
lographic microscope analysis of metallographic observation was condensate, and comparative analysis of the micro鄄
structure before and after compression was nerforel. At the same time the mechanical behavior of materials under dif鄄
ferent temperature and strain rate was analyzed, its behavior belongs to the typical type of dynamic recrystallization.
When hot compress temperature is 350益and 400益, material strength increases with the strain rate, and strain hard鄄
ening is also increased. When the strain rate is 0. 01/ s and 0. 1/ s, with the increase of deformation temperature and
stress of the material is gradually reduced. Compared with strain rate of 0. 01/ s,the stress with strain rate of 0. 1/ s is
lower under different temperature
