Žilinská univerzita v Žiline

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    Experimentálna analýza tribologických vlastností povrchov konštrukčných materiálov
    (Žilinská univerzita v Žiline, 2023) Bronček, Jozef; Vicen, Martin; Radek, Norbert; Bulko, Tomáš
    The presented article deals with the tribological properties of the surfaces of structural materials. Comparing the results of experimental measurements of three different surfaces (chrome steel 100CrMnMoSi8-4- 6, blackened steel surface, DLC coating) and three different balls (chrome steel 100Cr6, silicon carbide, tungsten carbide) made it possible to observe the influence of the materials of the friction pair on the tribological properties.
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    Hodnotenie tribologických vlastností DLC povlakov vybraných tribologických dvojíc
    (Žilinská univerzita v Žiline, 2023) Čuchor, Matúš; Ondriga, Jozef
    DLC coatings have several characteristics that have industrial applications. Principal advantages include a low coefficient of friction, hardness, abrasion resistance, and corrosion resistance. Coatings are evaluated using a number of test procedures. The ball-on-flat method was used to conduct the tests that are the focus of this paper. The tribological pair consisted of a DLC-coated plate and test balls made from three different materials. Experiments provide the friction coefficient curves as well as an optical evaluation of the DLC coating's wear. In all three types of examined tribological pairings, the coating was worn, but the DLC coating on the plate was not completely removed. After the break-in phase, the coefficient of friction has approximately constant values.