Formation of composite coatings on VT6 titanium alloy

Keywords

titanium alloy, vacuum arc deposition, gas nitriding, coating, hardness, wear resistance.

Cite as

Pohrelyuk І. М., Lavrys S. М., Tkachuk О. V., Zadorozhna Kh. R., Trush V. S., and Sirak Ya. Ya. Formation of composite coatings on VT6 titanium alloy. Physicochemical Mechanics of Materials. 2026. 62(2), 062-069.

https://doi.org/10.15407/pcmm2026.02.062

Abstract

The effectiveness of complex treatment of VT6 (Ti–6Al–4V) titanium alloy for increasing its wear resistance was investigated. The possibility of the formation of wear-resistant composite coatings by vacuum arc spraying of an aluminum layer or aluminum and titanium layers onto the alloy surface with subsequent gas nitriding of such compositions was studied. The phase composition of the obtained composite coatings and their physico­mechanical characteristics were established. The wear tests of composite coatings de­monstrated lower friction coefficient and cross-section area of the wear track in tribo-pairs with a ceramic ball without lubrication under normal load of 10; 15 and 20 N compared to the material without surface treatment, as well as after nitriding.

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