Influence on the temperature of the high speed steel substrate on the interface composition and adhesion of TiN hard coating deposited by cathodic arc

In this paper the influence of the temperature of the high speed steel (HSS) substrate during the TiN x (0 x =>0.7, as well as surfaces which do not oxidate easily when exposed to atmospheric pressure. The presence of oxygen at the interface produces weak adhesion of the coating, 40N, as compared with the 60 N for the coating without oxygen. The typical thickness of the coatings was about 500 nm and with a hardness of about 2000 kg-f mm −2 .