Corrosion protection of 2024-T3 aluminium alloy by electro-polymerized 3-amino 1,2,4-triazole in sulphate solution containing chloride
| Autor: | W. Qafsaoui, Hisasi Takenouti |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Materials science
Aqueous solution Anodizing General Chemical Engineering Inorganic chemistry Alloy General Chemistry engineering.material Chloride Corrosion chemistry.chemical_compound Polymerization chemistry visual_art Aluminium alloy visual_art.visual_art_medium engineering medicine General Materials Science Methanol Nuclear chemistry medicine.drug |
| Zdroj: | Corrosion Science. 52:3667-3676 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2010.07.014 |
| Popis: | Electro-oxidation of 3-amino 1,2,4-triazole (ATA) on Al 2024-T3 alloy carried out simultaneously to the anodizing process in methanol acetate or in aqueous sulphate medium, leads to the formation of Cu I –ATA complex upon Cu-rich particles. The anodizing film grows, in both media, according to high field-assisted migration mechanism and the potential field is in the order of 10 6 V cm −1 . Significant protective effect of films towards localized corrosion was observed due to Cu I –ATA and poly(ATA) formations on Cu-rich particles. These complex layers hinder also the oxygen reduction reaction leading to a lower corrosion rate at the open circuit conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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