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Title: Tribological characterization of tungsten nitride coatings deposited by reactive magnetron sputtering
Authors: Polcar, T. 
Parreira, N. M. G. 
Cavaleiro, A. 
Keywords: Unlubricated friction; Friction mechanisms; Nitrides; Tungsten; Coatings; Wear-resistant
Issue Date: 2007
Citation: Wear. 262:5-6 (2007) 655-665
Abstract: The structure, hardness, friction and wear of tungsten nitrides prepared by d.c. reactive magnetron sputtering were investigated. The coatings were deposited with different nitrogen to argon ratios; the total pressure was kept constant. The tribological tests were performed on a pin-on-disc tribometer in terrestrial atmosphere with 100Cr6 steel, Al2O3 and Si3N4 balls as sliding counter-bodies. The wear tracks, the ball-wear scars and the wear debris were analysed by scanning electron microscopy in order to characterize the dominant wear mechanisms.
Rights: openAccess
Appears in Collections:FCTUC Eng.Mecânica - Artigos em Revistas Internacionais

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