The Electrochemical Behavior of TiN/316LSS Material in Simulated Body Fluid Solution

Abstract

We report on the fabrication and the electrochemical behavior of TiN film on the 316L stainless steel (316LSS) material in simulated body fluid (SBF) solution for implant application. The characterization results indicate that the coated TiN is completely crystalline with (111) crystal orientation. Electrochemical results of 316LSS and TiN/316LSS material after 21 days of immersion in SBF show that the durability of the TiN/316LSS is much higher than that of 316LSS, which registers a very low corrosion current density (about tens of nA cm(-2)). The formation of hydroxyapatite on the surface of the TiN/316LSS is also confirmed by SEM, EDX, X-ray and IR spectroscopy.

Surface Modifications of Medical Grade Stainless Steel

“…In a study, the PVD technique was used to develop a TiN coating on four metallic substrates (pure Ti, Ti-6Al-4V, ASTM F138, and Co-Cr-Mo) and was reported to improve the corrosion resistance of MSS, but not of Ti and other alloys [61]. In another study, TiN films on MSS exhibited higher durability and lower corrosion [148]. Diamond has many superior desired characteristics of implant materials, including low friction, high wear and corrosion resistance, and good bonding to bone.…”

Electrophoretic deposition of hydroxyapatite‐shrimp crusts nanocomposite thin films for bone implant studies

“…The electrochemical behaviour of TiN film on the 316L stainless steel (316LSS) material was investigated in simulated body fluid (SBF) solution for implant application. Results, after 21 days in SBF, indicated higher durability of the TiN/316LSS than that of 316LSS [12]. Nano HAp was coated on Mg-2Zn by pulse electro-deposition method, and then post-treated with alkaline solution to improve the biodegradation behaviour and biocompatibility for implant applications.…”