Microstructure and mechanical properties of multi-principal component AlCoCrFeNiCu_x alloy  

作　　者：Jin-Ming Zhu Jie-Li Meng Jian-Lie Liang 

机构地区：[1]College of Science, Guangxi University for Nationalities

出　　处：《Rare Metals》2016年第5期385-389,共5页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (No. 50825402);the National Basic Research Program of China (No. 2011CB610405);Guangxi Natural Science Foundation (No. 2013GXNSFBA019251);Guangxi University of Science and Technology Research Projects (No. 2013YB071);Guangxi University for Nationalities Research Projects (No. 2011QD021)

摘　　要：By introducing Cu, AlCoCrFeNiCux （x values in molar ratio, x = 0, 0.1, 0.5, 1.0, 1.5, 2.0, and 2.5） alloys were designed and prepared. The effects of Cu on microstructure and properties of Al Co Cr Fe Ni alloy were investigated. The introduction of Cu results in the formation of Cu-rich FCC solid solution phase when Cu content is low.There are two FCC solid solution phases, i.e., Cu-rich FCC solid solution phase and phase transformation-induced FCC solid solution phase, when the Cu content is more than 1.0. Both the yield stress and plastic strain of alloy show a turning point when the Cu content is 0.5. Among the seven alloys, Cu0.5 alloy exhibits the largest yield stress of 1187 MPa and the lowest plastic strain of 16.01 %.By introducing Cu, AlCoCrFeNiCux （x values in molar ratio, x = 0, 0.1, 0.5, 1.0, 1.5, 2.0, and 2.5） alloys were designed and prepared. The effects of Cu on microstructure and properties of Al Co Cr Fe Ni alloy were investigated. The introduction of Cu results in the formation of Cu-rich FCC solid solution phase when Cu content is low.There are two FCC solid solution phases, i.e., Cu-rich FCC solid solution phase and phase transformation-induced FCC solid solution phase, when the Cu content is more than 1.0. Both the yield stress and plastic strain of alloy show a turning point when the Cu content is 0.5. Among the seven alloys, Cu0.5 alloy exhibits the largest yield stress of 1187 MPa and the lowest plastic strain of 16.01 %.

关 键 词：Multi-principal component alloys Mechanical properties Microstructure High entropy 

分 类 号：TG146.21[一般工业技术—材料科学与工程]