Sustainable Coating Design and Role of Liquid-Mediated Contact

Abstract

Development of new technological innovations needs more reliable and cost-effective materials for design. However, their overall working performance did not depend on its intrinsic properties. Generally, it depends on various operating and environmental conditions such as load, sliding velocity, time, temperature, and humidity. In the present time, loss of material during sliding contact is a major concern for all industries operating under severe contact condition. Hence, the industrial practice has accelerated the application of tribological study. Coating design in tribology plays an important role to eliminate material degradation and resist contact hysteresis. In the current work, interstitial nitride (tungsten/tungsten nitride—W/W2N) multilayer coatings were prepared by physical vapor deposition process, and their surface tribological behavior is investigated. Influence of liquid-mediated contact and surface adhesion phenomena with intrinsic mechanism between sliding pairs is also discussed. The scope of the work aims small to large scale automotive components for better tribological performance with high productivity.