Undercooling of ternary CoCrNimediumentropy alloy(MEA)was achieved by molten glass fluxing method.The influence of undercooling on microstructure and mechanical properties of was investigated.The microstructure change...Undercooling of ternary CoCrNimediumentropy alloy(MEA)was achieved by molten glass fluxing method.The influence of undercooling on microstructure and mechanical properties of was investigated.The microstructure changes during the undercooling process identified by transmission electron microscope and scanning electron microscope shows that the grain size and intergranular phase all change after the undercooling treatment.The yield strength of the ternary MEAincreased significantly after undercooling treatment,which attribute to the refined grain size and the formation of the new phase.Undercooling method can be used as a potential method to modify the microstructure and improve the mechanical properties of MEAs.展开更多
基金The support of this work was fromNational Key R&D Program of China(Grant No:2022YFA1603800)the National Natural Science Foundation of China(Grant No:12274362).
文摘Undercooling of ternary CoCrNimediumentropy alloy(MEA)was achieved by molten glass fluxing method.The influence of undercooling on microstructure and mechanical properties of was investigated.The microstructure changes during the undercooling process identified by transmission electron microscope and scanning electron microscope shows that the grain size and intergranular phase all change after the undercooling treatment.The yield strength of the ternary MEAincreased significantly after undercooling treatment,which attribute to the refined grain size and the formation of the new phase.Undercooling method can be used as a potential method to modify the microstructure and improve the mechanical properties of MEAs.
