期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 31, 期 10, 页码 3039-3049出版社
ELSEVIER
DOI: 10.1016/S1003-6326(21)65713-8
关键词
Cu-Fe alloy; microstructure; properties; powder metallurgy
资金
- National Natural Science Foundation of China [51974375]
- Key Project of Technology Innovation 2025, Ningbo, China [2018B10030]
- Technology Research Program of Shenzhen, China [JSGG20170824162647398]
- Project of State Key Laboratory of Powder Metallurgy, Central South University, China
- Young People Fund of Jiangxi province, China [2018BAB216005]
The study investigated the effects of Fe content on the microstructure, mechanical properties, and electrical conductivity of Cu-Fe alloys. The results indicate that Fe content significantly affects the properties of Cu-Fe alloys, providing guidance for the composition and processing design of these alloys.
Cu-Fe alloys with different Fe contents were prepared by vacuum hot pressing. After hot rolling and aging treatment, the effects of Fe content on microstructure, mechanical properties and electrical conductivity of Cu-Fe alloys were studied. The results show that, when w(Fe)<60%, the dynamic recrystallization extent of both Cu phase and Fe phase increases. When w(Fe)>= 60%, Cu phase is uniformly distributed into the Fe phase and the deformation of alloy is more uniform. With the increase of the Fe content, the tensile strength of Cu-5wt.%Fe alloy increases from 305 MPa to 736 MPa of Cu-70wt.%Fe alloy, the elongation decreases from 23% to 17% and the electrical conductivity decreases from 31%IACS to 19%IACS. These results provide a guidance for the composition and processing design of Cu-Fe alloys.
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