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本文对多级雾化－快速凝固Ｃｕ－Ｃｒ－Ｚｒ－Ｍｇ合金粉末，采用热挤压成形方式使其固结成形。研究了热挤压和时效处理对组织和性能的影响规律．结果表明：多级雾化法可以获得球状的微晶粉末，其晶粒尺寸为１－２μｍ．在４５０℃，按１０：１的挤压比成形后．合金的显微硬度可达１６０Ｈｖ，导电率为７８％ＩＡＣＳ．在其挤压后的组织中存在着与母相保持共格关系的铬相和ＣｕＺｒ．经５５０℃时效２ｈ后．显微硬度为１５０Ｈｖ，导电率为８５％ＩＡＣＳ．对在５５０℃时效１０ｍｉｎ的试样进行８０％的形变，可使其显微硬度达Ｈｖ １９０，导电率为８０％ＩＡＣＳ．
In this paper, the multi-level atomization - rapid solidification of Cu-Cr-Zr-Mg alloy powder, using hot extrusion forming consolidation. The effects of hot extrusion and aging treatment on microstructure and properties were studied. The results show that the multi-stage atomization method can obtain spherical microcrystalline powder with the grain size of 1-2μm. After shaping at 450 ° C at a 10: 1 extrusion ratio. The microhardness of the alloy can reach 160Hv, the conductivity is 78% IACS. In its extruded tissue, there exists a chromium phase and CuZr that are in a coherent relationship with the parent phase. After 550 ℃ aging 2h. The microhardness is 150 Hv and the electrical conductivity is 85% IACS. 80% deformation of the specimen aged at 550 ℃ for 10min can make the microhardness reach Hv 190 and the conductivity is 80% IACS.