The invention provides a preparation method of a hard
alloy material based on a high-entropy
alloy bonding phase, and relates to the field of hard
alloy materials, and the preparation method comprises the steps of S1,
tungsten carbide powder pretreatment, S2, preparation of a WC-coated
TiN core-shell structure, S3, in-situ synthesis of an interface
wetting agent (Ti, Zr, Mo) CN, S4, wet high-energy ball milling and mixing, and S5, preparation of the hard alloy material. According to the hard alloy material prepared through the method, the limitation that traditional
cobalt serves as a bonding phase is overcome,
interface bonding between the high-entropy alloy and a
tungsten carbide matrix is remarkably improved, abnormal growth of
crystal grains is inhibited, generation of a brittle phase is avoided, and the
hardness,
toughness and high-temperature stability of the hard alloy material are remarkably improved.