Corrosion susceptibility of 316L stainless steel coated with titanium/titanium oxide to be used as biomaterial

FRANCO ARIAS, L.M.; S. FARINA; MARQUEZ, A.

Congreso; European Corrosion Congress 2017; 2017

316L stainless steel is one of the most frequently used materials in biomedical applications due to its good mechanical properties, corrosion resistance and biocompatibility. It is less expensive than titanium but it is non-osteointegrable For that reason, it is of interest to develop a coating of some osteointegrable material so that to keep the good properties of the substrate and induce the osteointegration. Titanium dioxide is one of the most widely used materials for thin films due to its outstanding physical and chemical properties. Anatase, brookite and rutile are the three well-known crystalline phases of the TiO2, rutile presenting higher biocompatibility and hemocompatibility. Then, rutile coatings on stainless steel have become a very attractive option for biomaterial applications.The objectives of the work were to evaluate the corrosion susceptibility of bilayer coatings of titanium-titanium oxide over a substrate of 316L stainless steel in a solution that simulates biological media and to compare it with the corrosion susceptibility of the substrate (316L).