| Titre : |
Pore blocking by corrosion products |
| Type de document : |
texte imprimé |
| Auteurs : |
G. Blustein, Auteur ; Beatriz del Amo, Auteur ; R. Romagnoli, Auteur |
| Année de publication : |
2000 |
| Article en page(s) : |
p. 74-82 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Many attempts have been made to improve the corrosion resistance of galvanised steel, such as alloys development and the employment of organic coatings, in the so called duplex system, to provide a barrier effect. The organic coating usually contain inhibitive pigments to enhance corrosion resistance of the system. In the present paper, the anticorrosive performance of a commercial duplex system was evaluated by accelerated and electrochemical tests. It was found that the exceptional properties of the tested paint system rested on the presence of an inhibitor in the primer and on the relatively low permeability of the topcoat which maintained a constant value during the whole test period. |
| Note de contenu : |
EXPERIMENTAL : Electrochemical tests - Accelerated tests
RESULTS AND DISCUSSION : Electrochemical tests - Primed steel was more active in sodium sulphate and less active in sodium perchlorate solution - The primer cannot provide an important barrier effect - The topcoat was effective in resisting the aggression on both chloride and sulphate ions - Corrosion products blocked active sites and restrained corrosion - Accelerated tests |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11059 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 11/00 (11/2000) . - p. 74-82
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Pore blocking by corrosion products in EUROPEAN COATINGS JOURNAL (ECJ), N° 11/00 (11/2000)
