Exceptional strength-ductility synergy of additively manufactured CoCrNi medium-entropy alloy achieved by lattice defects in heterogeneous microstructures

Jianying Wang,Jianpeng Zou,Hailin Yang,Lijun Zhang,Zhilin Liu,Xixi Dong,Shouxun Ji

Journal of Materials Science & Technology（2022）

引用 16|浏览4

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摘要

•Giant strengthening in SLMed CoCrNi alloys by subsequent deformation and annealing.•CoCrNi alloy delivers yield strength of 1161.6 MPa and strain of 31.5%.•The refined hierarchical microstructure and lattice defects result in high strength.

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关键词

Medium-entropy alloys,Selective laser melting,Strength-ductility synergy,Defects,Microstructure

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