Tribological properties of TiN-Pb system solid lubricant coatings with various morphologies

The paper presents the results of the investigation of the solid lubricant coatings (SLC) tribological properties of several designs based on a TiN matrix with the addition of Pb (~6% atomic). A comparison of the tribological properties is made between the TiN coating without the addition of a solid lubricant component, a monolayer coating of TiPbN with a TiPb adhesive layer and a multilayer coating with alternating TiPb / TiPbN layers. It is shown that the monolayer coating has the smallest friction coefficient (~0.2), while the friction coefficient of a multilayer coating is ~0.75, which coincides with the friction coefficient for the TiN coating. Despite the friction coefficient high level of the multilayer coating, its resistance to wear is at the level of the monolayer coating.