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Titre: Improvement of the tribological behavior of TiN/CrN multilayer coatings by modulation wavelength variation
Auteur(s): Atmani, Taous Doria
Bouamerene, Mohammed-Said
Gaceb, Mohammed
Nouveau, Corinne
Aknouche, Hamid
Mots-clés: Layer thickness
Multilayer coating
Surface roughness
Wear resistance
Date de publication: 2024
Editeur: Elsevier
Collection/Numéro: Tribology International/ Vol. 192, Art. N° 109226(2024);pp. 1-14
Résumé: Hard coatings are widely used in materials engineering as surface coatings to protect mechanical parts subject to friction. For a coating to be functionally successful, it should possess high wear resistance. Experimental work has been performed on TiN/CrN multilayer coatings with various modulated periods, deposited on XC48 steel substrates having two different surface roughnesses using reactive direct current magnetron sputtering. Their Tribological performances were investigated following dry sliding wear tests using a tribometer with ball-on-flat contact configuration. The prevailing wear mechanisms of TiN/CrN coatings are dominated by oxidation of wear debris and counter material transfer. The decreased wear rate was significantly influenced by both the reduction of the period thicknesses and the increase of substrate surface roughness. Nonetheless, varying thickness period in the multilayer and increasing the substrate roughness did not show any significant wear resistance improvement.
URI/URL: https://doi.org/10.1016/j.triboint.2023.109226
https://www.sciencedirect.com/science/article/abs/pii/S0301679X23010174
http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/13376
ISSN: 0301-679X
Collection(s) :Publications Internationales

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