PROTECTIVE PROPERTIES OF ZN-MN COMPOSITE COATINGS
N. Boshkova, L. Lutov, N. Boshkov
Strony: 266-274
Opublikowano: 6 Sep 2018
Wyświetlenia: 2,341
Pobrania: 311
Streszczenie: Galvanic and nanocomposite Zn-Mn(11 wt.%) alloy coatings are obtained from a simple sulfate bath at electrodeposition conditions. The nanocomposite coatings contain stabilized polymeric micelles – SPM - the latter added to the electrolytic bath in concentration of 0,1 wt.%. Some of the coatings are additionally treated in Cr3+-based solution for obtaining of surface conversion layer. The protective ability of the coatings is evaluated in a model corrosion medium of free aerated 3% NaCl solution by potentiodynamic polarization curves and polarization resistance measurements. The surface morphology of the coatings is investigated by SEM images. The results show the better corrosion resistance and greater protective ability of the nanocomposite Zn-Mn alloy coatings compared to the ordinary ones. The influence of the Cr3+-based conversion layers on the coating characteristics is also commented and discussed.
Słowa kluczowe: zn-mn, nanocomposites, corrosion, conversion cr(iii) layers, polarization
Cytowanie artykułu: N. Boshkova, L. Lutov, N. Boshkov. PROTECTIVE PROPERTIES OF ZN-MN COMPOSITE COATINGS. Journal of International Scientific Publications: Materials, Methods & Technologies 12, 266-274 (2018). https://www.scientific-publications.net/en/article/1001704/
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