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将CU－C3．3％－Til3．3％和CU－Cu02．5％－Al11．1％（质量分数）二合金粉末分别进行机械合金化，结果发现，经20h球磨后，C的衍射峰已经消失，Ti、Al、CuO的衍射峰强度显著降低；60h球磨后，二合金粉末都形成了Cu基过饱和固溶体；100h球磨后，部分Ti、C、Al、O溶质元素脱溶析出，并反应生成TiC和Al2O3。机械合金化导致粉末细化、亚晶界和位错等缺陷产生是形成过饱和固溶体和促进第二相析出的重要原因。
The mechanical alloying of Cu-C3.3% -Til3.3% and Cu-Cu02.5% -Al11.1% (mass fraction) two alloy powders respectively showed that the diffraction peak of C had been After 60h ball milling, the Cu-based supersaturated solid solution was formed in the two alloy powders. After 100h ball milling, some of the solute elements such as Ti, C, Al and O were eluted out and reacted TiC and Al2O3 are generated. Mechanical alloying leading to powder refining, subgrain boundaries and dislocation defects such as the formation of supersaturated solid solution and promote the precipitation of the second phase of the important reasons.