Al,Mg,Si和Cu元素粉末按6061铝合金成分配比进行了机械合金化(MA),对其物相、合金化特性、晶格常数、晶粒尺寸及点阵应变作了测定和分析讨论.MA初期晶粒尺寸可以达到纳米级,最小晶粒尺寸20 nm;粉末点阵应变最终达0.2%;A]晶格常数变化的总趋势是不断减小;塑性较好的元素粉末可在"面上”作短程扩散,合金化易于进行,可实现完全合金化;硬度较高的脆性元素粉末只在"点上”作短程扩散,合金化不易进行,难以实现完全合金化.
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