通过对挤压变形ZA2合金进行不同温度、不同时间的时效处理,采用X-ray衍射、金相显微分析和硬度测量等方法,研究了变形ZA2合金力学性能和组织变化与时效制度的关系。结果表明,时效处理温度越高,硬度的增加越明显。研究了变形合金组织演化与性能变化的关系,并探究了晶粒转动、晶粒滑动机制在ZA2合金变形中所起的作用 The relationship between the mechanical properties and the microstructure changes of the deformed ZA2 alloy and the aging system was studied by means of X-ray diffraction, metallographic analysis and hardness measurement by aging the extruded ZA2 alloy at different temperatures and different times. The results show that the higher the aging temperature, the more obvious the increase of hardness. The relationship between the evolution of microstructure and the properties of the deformed alloy was studied. The effects of grain rotation and grain sliding mechanism on the deformation of ZA2 alloy were also investigated