1. Introduction and Applications of Tribology

Present chapter describes about the basic terms involve in tribology and their application in different fields. When two bodies are in a relative motion, at the interface rubbing occurred, due to rubbing, friction produced and friction eventually causes the wear on one or both the materials. Therefore, the role of lubricant comes into the picture. Friction and wear between two bodies can be overcome by the application of lubricants. In the environment, air and water may act as a lubricant to reduce friction and improve wear resistant property. Furthermore, friction and wear performance of any structure either nano, micro or macro-scale is depends upon a large member of external parameters and important among them are relative speed, temperature, and contact pressure. This chapter also describes the important application of tribology in brief.