Исследование структуры и триботехнических характеристик плазменных покрытий системы AL[2]O[3]-Mo[2]N при трении скольжения без смазки в интервале температур 25-600ºС

Abstract

This paper studies the friction and wear characteristics of plasma coating of system Al[2]O[3]-Mo[2]N (in the finger-disc friction without lubrication). Tribological characteristics were correlated with microstructure and micromechanical properties of the coatings. The optimum coating compositions that ensure maximum microhardness and wear resistance were determined. The coatings Al[2]O[3]-Mo[2]N showed high wear resistance at sufficiently low microhardness and a small wear rate and a low friction coefficient when contacting with a counterbody made of SiC. The tests have shown that the developed composite powder coatings have high durability and can be used as protective coatings of critical parts.