采用双向反复压缩变形研究了Al-Cu合金中不同析出相的回溶速度及性能变化.结果表明:在强塑性变形过程中,GP区回溶的速度最快,介稳相(θ"+θ'及θ')次之,稳定相(θ)最慢.强塑性变形引起的脱溶作用较小,而导致第二相回溶的作用较大.GP区状态下合金在压缩后硬度升高最大,过饱和固溶体、介稳相(θ"+θ')和稳定相(θ)状态下依次减小.
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