MANUFACTURING METHOD OF NANO-GRAINED COPPER ALLOYS AND NANO-GRAINED COPPER ALLOYS OBTAINED THEREBY

摘要

PURPOSE: A manufacturing method of nano-grained copper alloys and nano-grained copper alloys manufactured by the same are provided to improve electric and mechanical property of matter through complex cold working on copper alloys. CONSTITUTION: A manufacturing method of nano-grained copper alloys comprises following steps. Copper alloy material is prepared(S100). The copper alloy material comprises 2.8-3.2 weight% of silver and copper. Complex cold working is performed on the copper alloy material(S200). The copper alloy material is processed at 1-4 mm/s at room temperature(S210). Copper alloy material is rolled to 70-80% of reduction rate of section(S220).