Research Progress of WC-Based Cemented Carbide with High Entropy Alloy as Binder
WC-Co cemented carbide is widely used in the manufacturing industry,but how to select and design high-performance and low-cost binders is the current difficulty and hotspot in the field of replacing binders with cemented carbides.High entropy alloys(HEA)as binders can refine WC grains and improve the hardness,fracture toughness,corrosion resistance,and oxidation resistance of cemented carbide.This paper outlines the research progress of WC-HEA cemented carbide in terms of HEA binder composition design,WC-HEA preparation technology,microstructure,and comprehensive performance and describes the problems faced in this field such as poor sintering characteristics and susceptibility to phase transformation.It is intended to provide a reference for the exploration of the toughening mechanism of HEA as a binder phase and revealing the constitutive relationship between microstructureand mechanicalproperties of WC-HEA compositesin subsequent research.
HEA bindercemented carbidemicrostructureproperties