期刊
RARE METALS
卷 35, 期 5, 页码 385-389出版社
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-014-0268-5
关键词
Multi-principal component alloys; Mechanical properties; Microstructure; High entropy
资金
- National Natural Science Foundation of China [50825402]
- National Basic Research Program of China [2011CB610405]
- Guangxi Natural Science Foundation [2013GXNSFBA019251]
- Guangxi University of Science and Technology Research Projects [2013YB071]
- Guangxi University for Nationalities Research Projects [2011QD021]
By introducing Cu, AlCoCrFeNiCu (x) (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 AlCoCrFeNi 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, Cu-0.5 alloy exhibits the largest yield stress of 1187 MPa and the lowest plastic strain of 16.01 %.
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