电磁搅拌对Cu-6%Ag合金凝固组织及硬度的影响  

Effect of Electric Magnetic Stirring on Solidified Microstructure and Hardness of Cu-6%Ag Alloy

作　　者：柳艳[1] 李贵茂[2] 吉宁[1] 周超梅[1] 于军[1] 

机构地区：[1]沈阳汽车工业学院机械工程系,沈阳110015 [2]辽宁科技学院冶金工程学院,本溪117004

出　　处：《机械工程材料》2014年第2期32-35,共4页Materials For Mechanical Engineering

基　　金：国家高技术研究发展计划资助项目(2007AA03Z519);高等学校学科创新引智计划资助项目(B07015);国家自然科学基金资助项目(51004038);科技重大专项课题(2012ZX04010031)

摘　　要：通过组织观察与硬度测试的方法研究了电磁搅拌对Cu-6%Ag合金凝固组织及硬度的影响。结果表明:施加电磁搅拌后,Cu-6%Ag合金的晶粒细化,初生铜枝晶变短、变粗,共晶组织细化,呈网状,铜枝晶内的银含量降低,铜枝晶的硬度由82HV升高至88HV。The effects of electric magnetic stirring （EMS） on solidified microstrueture and hardness of Cu-6%Ag alloy were studied by mierostructure observation and hardness testing. The results show that, after applying EMS, grains of Cu-6% Ag alloy were refined, primary Cu dendrite became shorter and coarser, and eutectie microstructure became thinner and exhibited net shape. The mass fraction of Ag in Cu dendrite decreased and the hardness of Cu dendrite increased from 82 HV to 88 HV.

关 键 词：电磁搅拌 Cu-6%Ag合金 凝固组织 硬度 

分 类 号：TG146.1[一般工业技术—材料科学与工程]