PT  - JOURNAL ARTICLE
AU  - Bakalova, Totka
AU  - Petkov, Nikolay
AU  - Bahchedzhiev, Hristo
AU  - Louda, Petr
TI  - Tribology of Titanium-Aluminium Base Nanomultilayer Coatings
DP  - 2016 Oct 1
TA  - Manufacturing Technology Journal
PG  - 859--864
VI  - 16
IP  - 5
AID - 10.21062/ujep/x.2016/a/1213-2489/MT/16/5/859
IS  - 12132489
AB  - The article presents investigation of the trybological properties, particularly dry friction and friction using a process fluid, of friction pairs of steel ball against titanium-aluminium base nanomultilayer (NML) coatings. The coatings are deposited by cathodic arc evaporation of both pure titanium and aluminium with eighteen percent silicon cathodes. Each multilayer structure consists of 49 bi-layers. The external deposited layeris with five times longer growing period. The coatings are deposited at the temperature of 400°C and the work pressure of 2 Pa. Polished steel discs (Ø 20 mm × 5 mm thick) are used as the substrate material. The measured dry friction coeficients are in the range of 0.216 - 0.356 and the coefficients friction using process fluid is in the range of 0.085 - 0.151. The calculated wear of the counter-body is in the range of (0.66/ 4.21)×10-3 mm3, asit depends on the friction conditions and the used multilayer coating.