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Effect of the microarc oxidation time on the corrosion resistance and biodegradation of Mg-Ca-Zn alloys
Marchenko E. S.
1, Khrustalyov A. P.
1, Sinkina I. L.
1, Butyagin P. I.
1
1Tomsk State University, Tomsk, Russia
Email: 89138641814@mail.ru, khrustalevap@yandex.ru, sinkinairinal927@gmail.com, pavel.butyagin@manel.ru
The effect of the microarc oxidation (MAO) time on the structure, corrosion resistance and biocompatibility of Mg-Ca-Zn alloy coatings in a weakly alkaline phosphate-borate electrolyte is considered. The MAO time was varied from 15 to 35 min. The created coatings exhibit different structures, porosities, and electrochemical behaviors depending on MAO. All the coatings had a multilayer structure with an outer layer based on O, Mg and P and inner layer based on F. It was found that the coating of the sample formed after MAO treatment for 15 min has the highest corrosion resistance and low porosity. Keywords: magnesium, microarc oxidation, structure, implant, corrosion.
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