Effect of substrate bias voltage on the microstructure and tribological properties of CrN coatings
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Microstructure, wear and friction coefficient of cr-based magnetron sputtered layers. CrN films were deposited on stainless steel and silicon substrates via magnetron reactive sputtering under a systematic variation of the substrate bias voltage. The influence of the substrate bias voltage on the structural and tribological properties of the films was investigated. The results indicated that increasing the negative bias voltage have many influence on the characteristic of the coatings: concerning their microstructure, we observed that the grain size increased, while their coefficient of friction is influenced by the bias voltage like the wear rate.
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TLILI, Brahim; NOUVEAU, Corinne; GUILLEMOT, Gildas; BESNARD, Aurélien; BARKAOUI, Abdelwahed (Springer, 2018)The control of residual stresses has been seldom investigated in multilayer coatings dedicated to improvement of wear behavior. Here, we report the preparation and characterization of superposed structures composed of Cr, ...
TLILI, Brahim; NOUVEAU, Corinne; GUILLEMOT, Gildas (American Institute of Physics, 2010)Cr, CrN and CrAlN monolayers were synthesized by RF dual magnetron sputtering on AISI4140 steel and silicon substrates at 200°C. Multilayers coatings based on the three mono-layers such as CrN/CrAlN and Cr/CrN/CrAlN were ...
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BRAYEK, A.; TLILI, Brahim; GHRIB, Taher; NOUVEAU, Corinne (EDP Sciences, 2012)In this work we present the technique of magnetron vapor deposition and the effect of several deposition parameters on the structural and morphological properties of prepared thin films. It was noted that the deposition ...