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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - A novel FeCrMoCSi metallic glass with excellent corrosion resistance and in vitro cellular response for biomedical applications
AU - Li, K.
AU - Liang, L.
AU - Huang, Q.
AU - Xiao, J.
AU - Tian, Y.
AU - Wu, H.
PY - 2022/1/31
Y1 - 2022/1/31
N2 - The corrosion resistance and biocompatibility of a novel Fe50Cr18Mo10C20Si2 metallic glass (Fe–MG), are studied by electrochemical measurements and indirect contacting cytotoxicity assays for biomedical applications. In Hank’s solution, the Fe–MG shows better corrosion resistance than SS316L, evidenced by the larger polarization resistance in the potentiodynamic and electrochemical impedance spectroscopy (EIS) tests, and the lower amounts of released metallic ions during the immersion test. X-ray photoelectron spectroscopy (XPS) analyses show that a double-layer passive film, consisting of outer Fe-rich oxide and inner Cr-rich oxide, is formed on the Fe–MG. The stable passive film, together with the defect-free nature of the metallic glass, accounts for good corrosion resistance. In addition, in vitro tests suggest that the Fe–MG extracts have good blood compatibility, and no cytotoxicity to murine fibroblast cells. Compared with other Fe-based metallic glasses, the prepared novel Fe–MG contains no toxic elements, and shows a low corrosion rate.
AB - The corrosion resistance and biocompatibility of a novel Fe50Cr18Mo10C20Si2 metallic glass (Fe–MG), are studied by electrochemical measurements and indirect contacting cytotoxicity assays for biomedical applications. In Hank’s solution, the Fe–MG shows better corrosion resistance than SS316L, evidenced by the larger polarization resistance in the potentiodynamic and electrochemical impedance spectroscopy (EIS) tests, and the lower amounts of released metallic ions during the immersion test. X-ray photoelectron spectroscopy (XPS) analyses show that a double-layer passive film, consisting of outer Fe-rich oxide and inner Cr-rich oxide, is formed on the Fe–MG. The stable passive film, together with the defect-free nature of the metallic glass, accounts for good corrosion resistance. In addition, in vitro tests suggest that the Fe–MG extracts have good blood compatibility, and no cytotoxicity to murine fibroblast cells. Compared with other Fe-based metallic glasses, the prepared novel Fe–MG contains no toxic elements, and shows a low corrosion rate.
KW - Biocompatibility
KW - Chromium compounds
KW - Corrosion rate
KW - Electrochemical corrosion
KW - Electrochemical impedance spectroscopy
KW - Glass
KW - Iron oxides
KW - Medical applications
KW - Metal ions
KW - Metallic glass
KW - Metals
KW - Silicon
KW - Silicon compounds
KW - X ray photoelectron spectroscopy
KW - (metallic) glass
KW - Biomedical applications
KW - Cellular response
KW - Cytotoxicity assays
KW - Electrochemical measurements
KW - Excellent corrosion resistances
KW - In-vitro
KW - Passive films
KW - Polarization resistances
KW - Potentiodynamics
KW - Corrosion resistance
U2 - 10.1007/s10853-021-06511-y
DO - 10.1007/s10853-021-06511-y
M3 - Journal article
VL - 57
SP - 618
EP - 632
JO - Journal of Materials Science
JF - Journal of Materials Science
SN - 0022-2461
ER -