Manufacturing Technology 2017, 17(5):652-658 | DOI: 10.21062/ujep/x.2017/a/1213-2489/MT/17/5/652

Improving the Tribological and Mechanical Properties of an Aluminium Substrate by Deposition of TiCN 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

The article presents an investigation of the influence of coating deposition parameters, in particular a variation with 50% of both cathodic arc current and bias voltage, on the mechanical and tribological properties of TiCN coatings on an aluminium substrate deposited by the cathodic arc evaporation of metals at a constant gas flow ratio between C2H2 and N2 of 17.65 % / 82.35 %. The determined nanohardness values for the samples examined are in the range of 10 to 23 GPa. Surface morphology and chemical composition were estimated by a scanning electron microscope (SEM) and an energy dispersive spectrometer (EDS) of SEM. The tribological behaviour of the TiCN layers was examined using the "Ball-on-Disk" method (ASTM G99-95) and using a ball made of Al2O3 as a counter-part and a load of 10N. The friction coefficient was measured in the range of 0.182 to 0.116.

Keywords: Cathodic arc deposition, TiCN coatings, Aluminium substrate, Coefficient of friction

Published: October 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 Substrate by Deposition of TiCN Coatings. Manufacturing Technology. 2017;17(5):652-658. doi: 10.21062/ujep/x.2017/a/1213-2489/MT/17/5/652.
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