Effect of AlxCoCrFeNiCu binder on mechanical properties and wear performance of Ti(C, N) cermet

In this study, the effects of Al[Formula: see text]CoCrFeNiCu high entropy alloy (HEA) binder on the phase composition, microstructure, hardness, fracture toughness and abrasion resistance of Ti(C, N) cermets prepared by powder metallurgy method were investigated by X-ray diffraction, scanning electron microscopy, mechanical properties and abrasion test. The results showed that the sintered Ti(C, N) cermets exhibit homogeneous core-shell microstructure at 1500[Formula: see text]C when HEAs with 0.2 at% aluminum were added. The Vickers hardness and fracture toughness of cermet with Al[Formula: see text]CoCrFeNiCu could reach the peak value of 2235 Kg/mm 2 and 10.51 MPa[Formula: see text]m[Formula: see text] and the fracture morphology showed mixture fracture. The Ti(C, N) cermets with HEA binder exhibited good friction and wear properties.