Corrosion behavior of PEO coatings with Mn3O4 on Mg-Zn-Ca alloys in inflammatory conditions Abstract

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Sara Bahrampour
Aydin Bordbar-Khiabani
M. Hossein Siadati
Michael Gasik
Masoud Mozafari


The inflammatory response triggered by orthopedic devices results in the generation of reactive oxygen species (ROS) and a decrease in pH, accelerating the corrosion rate of Mg implants. To address corrosion challenges, various strategies are explored, including alloying with zinc and calcium elements and surface modifications. Plasma electrolytic oxidation (PEO) emerges as a promising technology, forming porous MgO coatings on Mg sur­faces. The electrolyte composition and the incorporation of additives not only affect coating characteristics but also influence the thickness and porosity of PEO coatings, collectively playing crucial roles in determining and preventing corrosion. This study underscores the potential use of additives with ROS-scavenging properties, such as manganese-based additives in the PEO electrolyte, and the synthesis of MgO-Mn3O4 coatings on Mg-Zn-Ca alloy, as a means to mitigate corrosion rates, especially in inflammatory conditions.


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Bahrampour, S. ., Bordbar-Khiabani, A., Siadati, M. H. ., Gasik, M. ., & Mozafari, M. . (2024). Corrosion behavior of PEO coatings with Mn3O4 on Mg-Zn-Ca alloys in inflammatory conditions: Abstract. HEMIJSKA INDUSTRIJA (Chemical Industry), 78(1S), 46. Retrieved from
Biomaterials for orthopedic and dental applications


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