A novel FeCrMoCSi metallic glass with excellent corrosion resistance and in vitro cellular response for biomedical applications

The corrosion resistance and biocompatibility of a novel Fe50Cr18Mo10C20Si2 metallic glass (Fe–MG), are studied by electrochemical measurements indirect contacting cytotoxicity assays for biomedical applications. In Hank’s solution, the Fe–MG shows better than SS316L, evidenced larger polarization in potentiodynamic impedance spectroscopy (EIS) tests, lower amounts released ions during immersion test. X-ray photoelectron (XPS) analyses show that double-layer passive film, consisting outer Fe-rich oxide inner Cr-rich oxide, is formed on Fe–MG. stable together with defect-free nature glass, accounts good resistance. addition, vitro tests suggest extracts have blood compatibility, no to murine fibroblast cells. Compared other Fe-based glasses, prepared contains toxic elements, low rate.