The Influence of Microstructure of Nanomultilayer AlN-CrN-TiN Coatings on their Tribological Properties at Elevated Temperature

Abstract:

One of the most effective ways of shaping the operating parameters of functional elements is to modify the properties of a surface layer using modern technologies of surface engineering. The prospective directions in the development of surface engineering solutions are nanomultilayer coatings that enable effective shaping of surface layer properties. A very important factor in designing properties of PVD coatings, apart from their chemical composition, is their microstructure.The paper presents the influence of the microstructure of the nanomultilayer AlN-CrN-TiN coating on their tribological properties at elevated temperatures. The research methods were concentrated on the analysis of mechanical properties, microstructure, and tribological properties at increased temperatures. The studies on mechanical properties included tests on hardness using the nanoindentation method and tests on adhesion using the scratchtest method. The analysis of microstructure was performed using scanning microscopy. The tribological properties at high temperature were examined using the ball-on-disc method. The authors indicate that the AlN-CrN-TiN layers are characterised by excellent mechanical properties and tribological resistance. In this paper, the authors confirm that the microstructure of a nanomultilayer coating is important in shaping the mechanical and tribological properties of a PVD coating.

• Periodical: Solid State Phenomena (Volume 237)
• Pages: 27-33
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.237.27
• Online since: August 2015
• Authors: Joanna Kacprzyńska-Gołacka*, Jerzy Smolik, Adam Mazurkiewicz, Jan Bujak, Halina Garbacz, Piotr Wieciński
• Keywords: Ball-on-Disc Tribological Tests, Hybrid Layers, Multilayer Coatings

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