Influence of Alloying with Chromium and Vanadium Carbides on the Corrosion and Tribocorrosion Characteristics of Hard Alloys of the WC-Ni System

摘要

We study the corrosion and tribocorrosion behaviors of hard alloys of the VN20 + Cr3C2 and VN20 + VC systems in solutions based on 3% NaCl with different pH values. In alkali media, the corrosion currents and friction coefficients are lower than in acid media, which is explained by the inertness of nickel. The VN20 + 1 wt.% Cr3C2 alloy has the highest corrosion and tribocorrosion characteristics.