Effect of WC particle reinforcement on Fe-1.5Cu-1.8Ni-0.5Mo-1C P/M composite

Fe-1.5Cu-1.8Ni-0.5Mo-1C powder metallurgy (P/M) composites added by WC reinforced particles in different mass fraction (0%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%) were prepared. The effects of WC content on microstructures, hardness, and wear resistance of composites were analyzed. The results indicate that, WC reinforced particles can improve the mechanical properties of composites, especially the wear resistance. The specimen containing WC reinforced particles in the mass fraction of 1% to 2% show the better microstructures and mechanical properties. Compared with the specimens without WC particles, the hardness of composites containing 1% and 2% WC particles by mass is increased by 12.9% and 12.9%, respectively, and the abrasion loss is reduced by 50% and 52.1%, respectively.