Mechanical Properties of W₂NiB₂ – Ni Boride Base Cermets

Abstract

W₂NiB₂ – Ni ternary boride cermet was studied for use as wear resistant hard materials. Microstructure configuration and mechanical properties of W₂NiB₂ – Ni ternary boride cermet were investigated, such as transverse rupture strength and Rockwell A hardness in different W/B ratios. The existence of W₂B phase with W/B = 1.05, 1.10 samples leads the microstructure refinement. W₂NiB₂ – Ni ternary boride cermet showed mechanical properties of HRA86.0 in hardness, and 1.48 GPa in transverse rupture strength with W/B = 1.00 sample. W₂NiB₂ – Ni ternary boride cermet needs improve mechanical properties to be an alternative material to wear resistant hard materials such as WC – Co.