Silane and epoxy coatings: A bilayer system to protect AA2024 alloy
10.1016/j.porgcoat.2014.12.014
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/76717
Tipus de documentArticle
Data publicació2015-04-01
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
This work has proved that a good combination of a simple and fast metal pre-treatment, followed by the deposition of a thin layer of an organic-inorganic silane coating and further layer of epoxy coatings, are able to protect the aluminium alloy AA2024-T3 against corrosion in high concentrations of NaCl solution, The alloy AA2024 is one of the most employed aluminium alloy in structural applications due to its good mechanical properties. However, AA2024 alloy series commonly presents galvanic corrosion due to the rich content of copper element. The influence of different surface pre-treatments, the presence of a silane layer as pre-coating treatment and the influence of phosphonic acids combined with the silane layer on the corrosion protection and adhesion to the aluminium alloy have been examined using accelerated corrosion tests. High roughness and the presence of a pre-coating film between the metal surface and the organic coating were essential for a good protection and resistance to blistering appearance in the surface of AA2024-T3. (C) 2014 Elsevier B.V. All rights reserved.
CitacióIribarren, J., Buj, I., Vivancos, J., Aleman, C., Armelin, E. Silane and epoxy coatings: A bilayer system to protect AA2024 alloy. "Progress in organic coatings", 01 Abril 2015, p. 47-57.
ISSN0300-9440
Col·leccions
- Departament d'Enginyeria mecànica - Articles de revista [597]
- IMEM-BRT- Innovation in Materials and Molecular Engineering - Biomaterials for Regenerative Therapies - Articles de revista [399]
- Departament d'Enginyeria Química - Articles de revista [2.227]
- TECNOFAB - Grup de Recerca en Tecnologies de Fabricació - Articles de revista [207]
Fitxers | Descripció | Mida | Format | Visualitza |
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Iribarren Mateos et al [Post-print].pdf | Article relacionat amb la protecció d'alumini AA2024 amb una xarxa de silanos | 1,366Mb | Visualitza/Obre |