| Titre : |
Corrosion behavior of 2024 aluminum alloy anodized in presence of permanganate and phosphate ions |
| Type de document : |
texte imprimé |
| Auteurs : |
Maysam Mohammadi, Auteur ; Ali Yazdani, Auteur ; Mohammad Ebrahim Bahrololoom, Auteur ; Akram Alfantazi, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 219-229 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Aluminium -- Alliages
Anticorrosifs
Anticorrosion
Ions inorganiques
Métaux -- Oxydation anodique
Permanganate de potassium
Phosphates
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In this article, the effects of two inorganic corrosion inhibitors, permanganate and phosphate anions, on morphology, composition, thickness, and corrosion resistance of the anodic film formed on 2024 aluminum alloy in sulfuric acid were investigated. Surface morphology of the oxide films were studied by field emission scanning electron microscopy. Electrochemical impedance spectroscopy and potentiodynamic polarization tests were conducted to assess the corrosion resistance of the coatings. These analyses showed that the presence of the mentioned inhibitors changed the coating morphology, especially in the case of phosphate ions. Corrosion results indicated that using inhibitors during the anodizing process increased the corrosion resistance of the anodized samples. The increases were approximately 81% and 97% for 0.05 M of permanganate and phosphate ions, respectively, compared with the anodized coatings in the absence of additives. An increase in the inhibitor concentration results in better corrosion resistance of the aluminum anodic layer. |
| DOI : |
10.1007/s11998-012-9459-x |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9459-x.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18240 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 2 (03/2013) . - p. 219-229
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