Need for engineered surface, definition and principles; conventional surface hardening methods methods involving no change in the chemical composition of the surface and methods involving change in chemical composition of the surface. Application of advanced techniques such as ion and electron beam towards creating new engineered surface, controlled high quality surface modification by CVD, PVD. plasma, laser ion bombardment etc; effect of process variables and structure -property correlations; thermo - chemical,
thermo - mechanical and thermal processes, treatments for "industrial components, case
studies.