Temperature dependence of friction coefficient and wear rate of hard coatings

This paper resumes results of our study of the temperature dependent parameters of TiN, CoCr, CoCrN and MoS2 coatings. All investigated coatings were sputtered by means of a system of unbalanced magnetrons with pulsed d.c. supply. The most important deposition parameters ( e.g. total and partial pressures of Ar+N2 mixture, sample bias) were registered. The coatings thickness, determined by means of Calotest method, was 2 - 3 μm. The adhesion was measured with a scratch tester, for coating structure and internal stress evaluation the XRD and for coatings hardness the Hanemann microhardness were used. The temperature dependence of tribological parameters was determined by means of a high temperature tribometer (Authors)