| Abstract Scope |
Research was conducted on the effect of titanium alloying on the wear resistance of chromium-plated coatings on carbon steels using functionally active charge compositions under non-steady-state temperature conditions. Based on thermodynamic analysis, the composition of the gas and condensed phases, which determine the mechanisms of coating formation, was established. Based on the results of metallographic and X-ray spectral analysis, it was established that the following phases form on the surface of titanium coatings: (FeCr)₂₃C₆, and the chromium- and titanium-alloyed Fe₂Al₅ aluminide with Cr₂Ti inclusions, the ordered solid solution Fe₃Al, alloyed with Cr and Ti, and an α-solid solution of Al, Cr, and Ti in Fe, which ensure an increase in microhardness to 15,000–16,000 MPa and a mass loss 1.53–1.82 times lower than isothermal analogues. The results obtained demonstrate an effective increase in the durability of steels and an extension of service life under conditions of severe wear. |