Increase in wear resistance of tribo-couplers due to ion-plasma coating

Abstract

Problem. Determination of the impact on the wear resistance of the tribosurface (IPP) of the TiN-Cr2N system by the method of solid matter condensation under ion bombardment conditions. Goal. The goal is studying of the effect on the wear resistance of the tribosurface of the TiN-Cr2N system by the method of solid substance condensation under ion bombardment conditions. Methodology. The choice of the composition for ion-plasma pavement for tribocouplers laboratory tests were carried out on the SMC-2 friction machine. The wear test samples were subjected to ion-plasma coatings such as МоN, ТіN and TiN-Cr2N. Results. As a result of laboratory tests it was found that ion-plasma coating of TiN-Cr2N improves the wear resistance of the tribocouplers by about 2.0 times. Furthermore, the wear of the samples with the ion plasma coating TiN and MoN at all loads is less than of the samples after quenching by high frequency but higher than when using the coating TiN-Cr2N. Originality. The coating of the TiN-Cr2N system increases the wear resistance of the tested samples (tribocompounds) due to the presence of titanium nitride and contributes to the increase in corrosion resistance due to the presence of chromium. Practical value. The obtained results of laboratory tests make it possible to predict an increase in the wear resistance of tribocombinations in real conditions of their operation (especially with limited lubrication or without it at all).