Improving the inflammatory-associated corrosion behavior of magnesium alloys by Mn3O4 incorporated plasma electrolytic oxidation coatings

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

Chemical Engineering Journal（2024）

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摘要

•Mn3O4-incorported MgO coatings were synthesized on Mg-Zn-Ca alloys by PEO technique.•PEO coatings' porosity decreased by addition of Mn3O4 NPs and KMnO4 into electrolyte.•All PEO-coated Mg alloys' corrosion rates decreased in H2O2-rich inflammatory media.•Composite PEO coatings obtained by Mn3O4 NPs exhibited superior corrosion resistance.•Altered thickness/porosity and Mn3O4 catalysis reduced corrosion rate in inflammation.

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关键词

Biodegradable implants,Mg-Zn-Ca biomaterials,anti-corrosion PEO coatings,Inflammatory condition,Corrosion rate,H2O2 scavenging with Mn3O4

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