E. Roman et al., COMPARATIVE-STUDY OF THE INTERFACE COMPOSITION OF TIN AND TICN HARD COATINGS ON HIGH-SPEED STEEL SUBSTRATES OBTAINED BY ARC-DISCHARGE, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 163(2), 1993, pp. 197-200
In this paper the composition of the interface of TiN and TiCN hard co
atings deposited onto high speed steel substrates obtained by the arc
discharge technique is studied using Auger electron spectroscopy at tw
o different substrate temperatures, 520 K and 720 K. The low temperatu
re (520 K) TiN coating developed an oxygen phase at the interface, pro
ducing a weak adherence of 40 N, while the high temperature coatings (
720 K) had a less intense oxygen phase, giving a greater adherence to
the substrate of 60 N. The TiCN coatings at 520 K ace characterized by
a low oxygen intensity at the interface. However, their adherence of
50 N is lower than the value of 60 N for the high temperature TiN coat
ings and is independent of the substrate temperature.