Aging Precipitation Characteristics of Lead Frame Cu-Cr-Zr-Mg Alloy

查看全文 作　　者：DONGQi-[1]ming;SUJuan-[2]hua;[1]LIUPing;LIHe-[3]jun;KANGBu-[1]xi

机构地区：[1]HenanUniversityofScienceandTechnology,LuoyangChina;[2]HenanUniversityofScienceandTechnology,LuoyangChina/NorthwesternPolytechnicalUniversity,Xi'anChina;[3]NorthwesternPolytechnicalUniversity,Xi'anChina

出　　处：《材料热处理学报》索引2004年第25卷第5期,共4页

摘　　要：This paper presents the effects of aging processes on the properties and microstructure of Cu-0.3Cr-0.15Zr-0.05Mg lead frame alloy. Optimal conditions for good hardening and electrical conductivity can be obtained by solution treating at 920 °C for Ih and aging at 470^0 for 4h and at 550^ for Ih. The hardness and electrical conductivity can reach 108HV, 73%IACS and 106HV, 76%IACS, respectively. Aging precipitation was dealt with by transmission electronic microscope (TEM). At 470 °C aging for 4h the fine precipitation of an ordered compound CrCu2(Zr,Mg) is found in matrix as well as fine Cr and Cu4Zr. Aging at 550’C for Ih some precipitates are still coherent with matrix. The CrCu2(Zr,Mg) completely dissolves into Cr and Cu4Zr. 关键词：CU-CR-ZR-MG合金阶段析出冷作时效导电率

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Aging Precipitation Characteristics of Lead Frame Cu-Cr-Zr-Mg Alloy

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引证文献(4)

耦合文献(118)

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