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研究了机械合金化制粉、热静液挤压致密制备的Ｃｕ－５Ｃｒ合金的组织与性能。机械合金化Ｃｕ－５Ｃｒ合金由于细晶强化和弥散强化的作用，具有很高的强度（σｂ≥７５０ＭＰａ），经热处理后，合金具有较高的延伸率（δ≥８％）和导电性（≥６０％ＩＡＣＳ）。材料晶粒达到０．１μｍ级，析出的Ｃｒ粒子达到纳米级。
The microstructure and properties of Cu-5Cr alloy prepared by mechanical alloying milling and hot hydrostatic extrusion were studied. The mechanical alloying Cu-5Cr alloy has high strength (σb≥750MPa) due to the effect of fine grain strengthening and dispersion strengthening. After heat treatment, the alloy has high elongation (δ≥8%) and conductivity 60% IACS). The material grain reaches 0.1μm, the precipitated Cr particles reach the nanometer level.