A novel high-strength and high-ductility CoCrNi medium entropy alloy by Ti/Mo co-doping

X. S. Liu,R. Li,A. X. Li,S. Xu,H. Yang, S. B. Yu,M. H. Jiang, C. Huo, P. F. Yu,Y. Y. Wang, G. Li

Materials Letters（2022）

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摘要

•A novel alloy design strategy was proposed for FCC-structured CoCrNi-based MEA with outstanding strength-ductility balance.•CoCrNi-based HEA with the dual-precipitates structure prepared by Ti/Mo co-doping.•Precipitation of the L12 phase and σ phase by annealing at 950 °C with 1 h.

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关键词

Medium entropy alloy,Microstructure,Electron microscopy,Precipitation strengthening,Tensile strength

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