Abstract
AbstractThis study investigates the qualitative characteristics of multilayer vacuum-plasma nanostructured Ti-TiN based coatings, as well as their adhesion strength. It is suggested that the additional ion bombardment greatly contributes to the formation of a high-quality ion-plasma coating. Ion bombardment also significantly affects the physical and chemical properties of the specimen surface. Bombarding the targets with an additional ion flux creates active nucleation sites, where adsorption occurs and a fine-grained structure is formed. The study shows that the surface modification influenced by the ion flux occurs both at the beginning stage and at the stage of its formation. The surface is subjected to ion bombardment. This results in point defects, which subsequently become active adsorption sites. The study provides the indentation depth values for the diamond pyramid indenter values to estimate the microhardness of the formed coatings, as well as the arithmetic mean values. The wear resistance of vacuum-plasma coatings was estimated using the friction machine as per DIN (German Standard) and ASTM (American Society for Testing and Materials). This paper includes a comprehensive tribological study and its results.KeywordsCoatingsStructureMultilayer coatingsAdsorptionIon bombardmentSurface
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