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Analysis of selected properties of PVD films

Zdravecka E., Briancin J., Fecsu S.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2008

z. 73 [253]

305-310

Thin ceramic coatings deposited on the surface of tools and machine parts by PVD methods improve considerably their tribological properties. These hard brittle coatings can be damaged rapidly if a plastic deformation initiates in the substrate near the coating-substrate interface when subject to a relatively high intensity loading. The load bearing capacity of the coating-substrate system increases with improved substrate properties. The typical duplex processinvolves thermo-chemical treatment and the PVD coating treatment of steels. Tested duplex treated low-alloy steels were pulse plasma nitrided and then coated by CrN. The fretting tests showed the high wear resistance of duplex treated steel.