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采用新型的喷射沉积技术制备Ａｌ－３．８Ｌｉ－０．８Ｍｇ－０．４Ｃｕ－０．１３Ｚｒ（Ｎｏ．１）和Ａｌ～２．１５Ｌｉ－１．２８Ｃｕ－１．２６Ｍｇ－０．１Ｚｒ（Ｎｏ．２）合金，对合金在时效过程中的析出相进行了比较和分析。实验结果表明，喷射沉积快速凝固Ａｌ－Ｌｉ合金的δ＇相粒子与铸锭冶金法Ａｌ－Ｌｉ合金的δ＇粒子有较大差异．高Ｌｉ低Ｃｕ含量的Ｎｏ．１合金δ＇相的体积分数明显高于低Ｌｉ高Ｃｕ含量的Ｎｏ．２合金，δ＇相的粗化速率较大，但仍然符合Ｏｓｔｗａｒｌｄ粗化规律；长时间的时效处理使δ等平衡相在晶内或晶界析出，导致晶界无析出区的形成和宽化。
Al-3.8Li-0.8Mg-0.4Cu-0.13Zr (No.1) and Al-2.15Li-1.28Cu-1.26Mg-0.1Zr (No) were prepared by a novel spray deposition technique. 2) alloy, the precipitation phase of the alloy in the aging process were compared and analyzed. The experimental results show that the δ ’phase particles of rapidly solidified Al-Li alloy by spray deposition are different from the δ’ particles of Al-Li alloy by ingot metallurgy. High Li Low Cu Content No. 1 alloy δ ’phase volume fraction was significantly higher than the low Li high Cu content. 2 alloy, the coarsening rate of δ ’phase is larger, but it still accords with the Ostwarld coarsening law. The long time aging treatment causes the δ and other equilibrium phases to precipitate in the grain boundary or grain boundary, resulting in the formation and broadening of the precipitate-free zone .