Comparative Study of Tribological Behavior of TiN Hard Coatings Deposited by Various PVD Deposition Techniques

In this paper, we present a comparative study of tribological properties TiN coatings deposited by low-voltage electron beam evaporation, magnetron sputtering and cathodic arc deposition. The correlation behavior these with their intrinsic friction condition was studied. influence surface topography the surrounding atmosphere analyzed in more detail. We limited ourselves to investigation processes that take place initial phase sliding test (the first 1000 cycles). A significant difference three types observed. found nodular defects on coating have an important role stage test. response coatings, prepared deposition, is also affected metal droplets surface, as well those incorporated itself. Namely, soft increase adhesion component friction. wear rates increased roughness most for influences post-polishing were investigated. tests different conducted ambient air, oxygen nitrogen. While promotes tribo-chemical reactions at contact coating, nitrogen suppresses them. rate measured compared atmosphere, lower. probably due humidity air. On other hand, much lower comparison or air atmosphere.