Due to its great biocompatibility, strong corrosion resistance, and specific strength, Ti and its alloys offer the best features for biomedical applications. It has been determined that Ti-6Al-7Nb is a suitable alternative for the Ti-6Al-4V alloy, which has been used in medical applications for many years, and it has been approved for use in clinical. Biomaterials are the substances that are utilised to sustain a system or substitute for a biological tissue. For increasing their viability, the most popular metal, SS316L, and another metal, Ti6A7NB, which has the necessary qualities, were chosen. Despite their strength, SS316L and Ti6A7NB exhibit mechanical characteristics when utilised in biological systems. Since they must be made much more suitable to be used as a biomaterial, plasma nitriding and salt baths are used to slow down corrosion and make the material considerably more compact. A heat treatment method called plasma nitriding and salt baths diffuses nitrogen ions over the surface, creating nitrides while lowering reactivity and enhancing corrosion resistance. The effects of nitriding and salt bathing these metals for varying lengths of time 10 hours and 24 hours, respectively on their characteristics are investigated. To investigate the structural topography and composition, SEM and EDAX are used. To demonstrate how plasma nitriding and salt baths affect the metals hardness, the Vickers hardness test is used

Hardness, Mechanical Properties, Plasma Nitriding, SS316L and Ti6A7NB.