The microstructure deformation in the aging process of the alloy has been stated ,and the heteromorphy has been found the cause of the natural aging process of the 2011 alloy .

• 分析了工艺参数对合金力学性能的影响,阐述了合金时效过程中的微观组织变化,找出了2011合金自然时效进程缓慢的原因是异质形核。