Manufacturing Technology 2017, 17(6):824-830 | DOI: 10.21062/ujep/x.2017/a/1213-2489/MT/17/6/824

Improving the Tribological and Mechanical Properties of an Aluminium Alloy by Deposition of AlSiN and AlCrSiN Coatings

Totka Bakalova1, Nikolay Petkov2, Hristo Bahchedzhiev2, Pavel Kejzlar1, Petr Louda3, Marián Ďurák3
1 Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
2 Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, 61, St. Peterburg Blvd. 4000 Plovdiv, Bulgaria
3 Faculty of Mechanical Engineering, Department of Material Science, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic

This paper presents an improvement to the mechanical and tribological properties of aluminium alloys. AlSiN and AlCrSiN coatings (with different Cr content) were deposited on substrates of Al-Cu-Mg alloy by the cathodic arc evaporation method at 400°C. Surface morphology and chemical composition were estimated by a scanning electron microscope equipped with an energy dispersive spectrometer and mechanical profilometer. The increasing chromium content in the coating led to an increase in the coating hardness. The tribological behaviour of the coated and uncoated Al-Cu-Mg alloy samples was examined using the "Ball-on-Disk" method (ASTM G99-95) at a load of 10N using Al2O3 ball as a counterpart.

Keywords: AlSiN thin films; Cathodic arc deposition; Aluminium substrate, Coefficient of friction

Published: December 1, 2017  Show citation

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Bakalova T, Petkov N, Bahchedzhiev H, Kejzlar P, Louda P, Ďurák M. Improving the Tribological and Mechanical Properties of an Aluminium Alloy by Deposition of AlSiN and AlCrSiN Coatings. Manufacturing Technology. 2017;17(6):824-830. doi: 10.21062/ujep/x.2017/a/1213-2489/MT/17/6/824.
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