Ca-based sealing of plasma electrolytic oxidation coatings on AZ91 Mg alloy
نویسندگان
چکیده
Plasma electrolytic oxidation (PEO) coatings on AZ91 Mg alloy were sealed in calcium nitrate solutions at different pH values (3, 4 and 5). Sodium dodecyl sulfate (SDS) was added to study the effect of SDS corrosion resistance coatings. The microstructure, chemical composition investigated by means SEM, XPS, XRD electrochemical tests. performance improved due precipitation Ca-containing precipitate. Low addition enhanced hydroxyapatite produced hydrophobic with worse paint adhesion but better resistance.
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ژورنال
عنوان ژورنال: Surface & Coatings Technology
سال: 2021
ISSN: ['1879-3347', '0257-8972']
DOI: https://doi.org/10.1016/j.surfcoat.2021.127220