DUPLEX ANTIABRASIVE COATINGS (FE-BASED ALLOY-TIN) PRODUCED BY IMPULSEPLASMA DEPOSITION

TiN-type antiabrasive coatings are commonly produced by various PVD-CV D methods. It is known that the multilayer coatings are better than mo nolayer coatings because of the possibility of controlling the stress level, in particular, in interfaces, and as a result in the whole coat ing. In this paper, phase composition, morphology, anticorrosive (tigh tness) and antiabrasive properties of the duplex (Fe-based alloy-tin) coatings produced by impulse plasma deposition were examined and compa red with the single-layer TiN ones. The very good mechanic and plastic properties of Fe-Ni-Mo-Al-Ti alloys (maraging steel) which were used seem to predestine this alloy as a metallic bond layer in multilayer a ntiabrasive coatings. (C) 1998 Elsevier Science S.A.