Thesuccessofafunctionalcoatingisintrinsicallylinkedtotheimprovementofitssurfacepropertiessinceitisthesurfacethatwillbeindirectcontactwiththeenvironmentandmechanicalstresseswhenthema-terialisusedinseverewear,fatigue,orcorrosionapplications. Ithasbeenshown, for example, by increasing mechanical properties, factors such assurface hardness increase the durability of the coating/substrate system.Consequently, current research on the design and development of multi-functionalcoatingsforsurfaceengineeringwithinmechanicalsystemsmustaddresssurfacetreatmentandmodificationtechniques.Thefollowingartcleisabibliographicreviewoncoatingswithindustrialapplicationsabouttransition metal nitrides deposited with Physical Vapor Deposition (PVD)techniquesusedforthispurpose:sputteringandcathodicarc