A new phenomenon of re-dissolution of second phases and re-formation of supersaturate solid solution found in processes of severe plastic deformation was summarized.

• 综述了在室温强塑性变形过程中发现的新现象:第二相颗粒的回溶,合金基体重新形成过饱和固溶体。这种过饱和固溶体再时效时,析出相生成顺序不同于淬火固溶体。