High-temperature sliding wear, elastic modulus and transverse rupture strength of Ni bonded NbC and WC cermets

Influence of abrasive characteristics on the wear micro-mechanisms of NbC and WC cermets during three-body abrasion

“…Bolelli et al observed similar behaviour for Cr3C2-NiCr cermet coatings, with relatively high inter-and intra-lamellar cohesion strength, resulting in very low penetration of abrasive particles in the surface and retardation of carbide grain pull-out [53]. Apparently, the fracture toughness and modulus of elasticity of NbC-Ni cermets are relatively lower than that of WC-Co cermets, due to their modest wettability and intergranular cohesion [7,54]. This could be the reason for the removal of a higher volume of NbC-Ni compared to WC-Co.…”