Antifriction Properties of Diamond-Like Coating and Titanium Aluminum Nitride in Model Lubricant Media

Abstract

Abstract—The study investigates the antifriction properties of both a diamond-like coating (DLC) and titanium aluminum nitride (AlTiN) used as an intermediate layer to improve adhesion. Tribological tests of coatings were carried out without lubricant, in an inactive lubricant environment, and in lubricant environments with surfactant and chemically active additives. The studied DLC increases surface wear resistance and significantly lowers the friction coefficient; at the same time, the lubricant environment has no significant effect on the antifriction properties of the DLC.