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利用高能球磨工艺制备了纳米晶Ａｌ－Ｃｕ合金。发现按Ａｌ_（５０）Ｃｕ_（５０）配比纯元素粉末高能球磨时，形成了纳米晶的Ｃｕ_９Ａｌ_４金属间化合物。初步探讨了高能球磨纳米晶金属间化合物的形成过程。
Nanocrystalline Al-Cu alloys were prepared by high-energy ball milling. It was found that the nanocrystalline Cu_9Al_4 intermetallic compounds were formed by high energy ball milling of pure Al_ (50) Cu_ (50) powders. The formation process of high energy ball milling nanocrystalline intermetallics was preliminarily discussed.