Cu-W两相合金广泛应用于电子工业，利用机械合金化形成纳米Cu-W相有利于提高合金的热性能。实验主要探讨机械合金化过程中Cu-W合金纳米非平稳相的变化机理，从而研究无互溶性元素间产生固态反应的内在规律。 实验采用纯度为99.5%的纯电解铜粉，平均粒度为17.5m及纯度为99.5%， Cu-W two-phase alloy is widely used in the electronics industry, the use of mechanical alloying to form nano-Cu-W phase is conducive to improving the thermal properties of the alloy. The experiment mainly discussed the change mechanism of nano-scale non-stationary phase of Cu-W alloy in the process of mechanical alloying to study the inherent law of solid reaction between non-miscible elements. The experiment uses pure electrolytic copper powder with the purity of 99.5%, the average particle size is 17.5m and the purity is 99.5%