Experimental Investigation of the Tribological Performance and Statistical Analysis of WC-Co-10%TiC Cermet

This study investigates the tribological performance of a WC–Co cermet reinforced with 10% TiC under severe tribological conditions. Disc tribometer tests (cermet) against an Al₂O₃ ball were conducted at 650°C, 0.5 m/s sliding speed, 20 N load, and a sliding distance of 5000 m. Besides, a statistical analysis of the friction coefficient. The results reveal a stable coefficient of friction of µ=0.43, indicating excellent thermal and tribological stability. The analysis demonstrates that the friction coefficient follows a logistic distribution with lower dispersion and weaker parameter correlation compared to the normal distribution. SEM/EDS analyses show the formation of a dense, continuous tungsten-rich oxidized tribofilm, enhancing wear resistance and surface protection, and increasing cermet durability.