Corresponding Author

Chang-jian LIN(cjlin@xmu.edu.cn)


The effect of oxidation of mussel adhesive protein (Mefp-1) film on the corrosive resistance for Mg-1.0Ca alloy was investigated by scanning electron microscopy (SEM), atom force microscopy (AFM), electron probe microanalysis (EPMA), Infrared reflection absorption spectroscopy (IRAS) and electrochemical methods. The results showed that the NaIO4 induced oxidation of the pre-formed Mefp-1 film with porous morphology involved structural change of the DOPA group in the protein and resulted in a more uniform film with net-like morphology. The protein film without oxidation had an increasing resistance for the corrosion of Mg-1.0Ca alloy up to 7 days exposure. After oxidation, Epit largely shifted to positive potential and the protective property of the film reached a best efficiency at 3 days exposure, while declined slightly for further exposure.

Graphical Abstract


Oxidation, Mg Alloy, Mussel Adhesive Protein (Mefp-1), EIS

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