High-performance copper alloy and high-performance copper alloy powder preparation method

The invention relates to a high-performance copper alloy and a high-performance copper alloy powder preparation method. The high-performance copper alloy comprises Cu, Cr, Zr and M, wherein the mass percentage of Cr is 0.1-5.0% , and the mass percentage of Zr is 0.1-5.0% . M is composed of at least two of Mg, Ag, B, Ga, Si, Li, Ti, Fe and Mn and Re, wherein the mass percentage of the M is 0.05-0.5%, and RE is selected from at least three of Ce, La, Yb, Pr, Nd and Sm. Cu-Cr-Zr-M copper alloy powder is prepared through gas atomization, the powder is supersaturated solid solution which is uniformin ingredient and fine in micro-structure. The preparation technology is simple, the obtained powder is fine in particle, uniform in particle size distribution and good in sphericity degree. A blockymaterial made of the powder has the features of excellent electrical properties and mechanical properties. 本发明涉及一种高性能铜合金及其粉末制备方法。所述铜合金包括Cu、Cr、Zr及M。其中，Cr的质量百分数为0.1～5.0％；Zr的质量百分数为0.1～5.0％；M由Mg、Ag、B、Ga、Si、Li、Ti、Fe、Mn中的至少2种与RE组成，