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 .

分了工艺参数对合金力学性能的影响,阐述了合金效过中的微观组织变化,找出了2011合金自然效慢的原因是异质形核。