Control of the Mg alloy biodegradation via PEO and polymer-containing coatings

Gnedenkov, A.; Lamaka, S.; Sinebryukhov, S.; Mashtalyar, D.; Egorkin, V.; Imshinetskiy, I.; Zheludkevich, M.; Gnedenkov, S.

Journalpaper

Control of the Mg alloy biodegradation via PEO and polymer-containing coatings

Abstract

The composite calcium-phosphate coating on MA8 Mg alloy consisting of the inorganic porous basis sealed with polymer is suggested. To control the alloy resorption kinetics, the coating obtained by plasma electrolytic oxidation is modified with superdispersed polytetrafluoroethylene using electrophoretic deposition (EPD). Protective properties and morphology evolution as a result of surface treatment and corrosion propagation are examined by EIS, PDP, hydrogen evolution tests, SEM, EDX and XRD analysis. The obtained coatings are investigated at mechanistic level using SVET and local pH measurements. EPD composite coating decreases electrochemical activity of the sample in minimum essential medium and ensures the material biocompatibility.

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URL: https://publications.hereon.de/id/39817/
Authors:Gnedenkov, A., Lamaka, S., Sinebryukhov, S., Mashtalyar, D., Egorkin, V., Imshinetskiy, I., Zheludkevich, M., Gnedenkov, S.
Year:2021
In: Corrosion Science
Volume:182
Pages:109254
Publisher:Elsevier, Orlando
Type:Journalpaper
ISSN: 0010-938X
Cite as: Gnedenkov, A.; Lamaka, S.; Sinebryukhov, S.; Mashtalyar, D.; Egorkin, V.; Imshinetskiy, I.; Zheludkevich, M.; Gnedenkov, S.: Control of the Mg alloy biodegradation via PEO and polymer-containing coatings. In: Corrosion Science. Vol. 182 (2021) 109254. (DOI: /10.1016/j.corsci.2021.109254)