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Journal of Materials Engineering and Performance

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26.04.2022 | Technical Article

Electrochemical Study of Anodized AZ31 Magnesium Alloy (Mg/MgO) Immersed under Watered Cementice Paste

verfasst von: C. H. Ortiz, W. Aperador, J. C. Caicedo

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 11/2022

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Abstract

The main purpose of this research was to determine the electrochemical behavior of the anodized AZ31 magnesium alloy with different current densities immersed under watered cementice paste. These results obtained by Tafel polarization curves and electrochemical impedance spectroscopy indicated a decrease of approximately 90% in the corrosion rate for the anodized AZ31 magnesium alloy with 25 mA/cm² when compared to a non-anodized AZ31 magnesium alloy, evidencing the protection generated by the anodization process. In addition, by means of surface SEM and SEM of the cross section, it was possible to determine the growth of the anodized layer and the morphological changes caused by the electrochemical reaction on the surface of the anodized magnesium. These results obtained in this study concluded that the anodized AZ31 magnesium alloy anodized with a current density of 25 mA/cm² presents a set of optimum properties to be implemented in highly corrosive industry process.

Vorheriger Artikel Insight into the Corrosion Resistance of Plasma Electrolytic Oxidation (PEO) Mg Alloys from the Microstructures in PEO Coatings

Nächster Artikel Novel Approach for the Synthesis of Highly Corrosion Resistant and Electrically Conductive Cerium Hexaboride Coating

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Titel: Electrochemical Study of Anodized AZ31 Magnesium Alloy (Mg/MgO) Immersed under Watered Cementice Paste
verfasst von: C. H. Ortiz
W. Aperador
J. C. Caicedo
Publikationsdatum: 26.04.2022
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 11/2022
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-022-06931-0

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