Développement d’une nouvelle génération de revêtements ultra-durs. Etude de leur comportement tribologique et anticorrosif.

Abstract : The aim of this study was to develop and characterize a new generation of wear and corrosion resistant multilayers Cr-N based coatings. Due to the severe conditions that wood cutting tools are subjected in addition to the environmental issue associated with the use of cutting fluids during wood machining, the monolayers that constitute our multilayers system must have specific characteristics. As a result, thin layers of Cr, CrN and CrAlN have been deposited on wood cutting tools steel and silicon substrates by DC reactive magnetron sputtering to be optimized. Then, the optimal monolayerscoatings were combined to develop the Cr/CrN/CrAlN multilayers. that were characterized to determine their physicochemical, mechanical, tribological properties and their corrosion behavior. The results obtained indicated that the application of a multilayer coating can greatly improve the wear and corrosion resistance of a wood cutting tools steel.
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Khalil Aouadi. Développement d’une nouvelle génération de revêtements ultra-durs. Etude de leur comportement tribologique et anticorrosif.. Mécanique des matériaux [physics.class-ph]. Ecole nationale supérieure d'arts et métiers - ENSAM; École polytechnique de Tunisie (La Marsa), 2017. Français. ⟨NNT : 2017ENAM0041⟩. ⟨tel-01799066⟩

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