Please use this identifier to cite or link to this item: http://ciateq.repositorioinstitucional.mx/jspui/handle/1020/392
Potentiodynamic polarization performance of a novel composite coating system of Al2O3/chitosan-sodium alginate, applied on an aluminum AA6063 alloy for protection in a chloride Ions environment
Adriana Gallegos-Melgar
Sergio Alonso Serna
Emmanuel josé Gutiérrez Castañeda
VICTOR HUGO MERCADO LEMUS
Hugo Arcos Gutiérrez
Maricruz Hernandez-Hernandez
JESUS PORCAYO-CALDERON
Jan Mayén Chaires
MAYRA DEL ANGEL MONROY
Acceso Abierto
Atribución-NoComercial-CompartirIgual
10.3390/coatings10010045
2079-6412
https://www.mdpi.com/2079-6412/10/1/45
Organic coatings
Electrophoretic deposition
Potentiodynamic polarization resistance
In this research work, a preliminary potentiodynamic polarization performance testing was carried out on a new environmentally friendly proposed composite coating. The proposed composite coating was developed by: (a) hot sulfuric anodizing to produce an Al2O3 conversion film followed by an (b) organic electrodeposited chitosan–sodium alginate blended film. Posteriorly, the conversion and organic films were microstructurally characterized by scanning electron microscopy. Finally, the polarization resistance technique was used to measure the corrosion resistance of the uncoated and coated AA6063 alloy in a simulated marine environment and the polarization tests were compared to samples immersed during 30 days in same electrolyte solution. The obtained inhibition corrosion e_ciency of the proposed coating system was measured comparing the Rp of the uncoated alloy to the coated samples, showing an e_ciency about 99% for a 3% NaCl electrolyte for some of the samples. Therefore, the experimental results obtained during this research demonstrates the feasibility of using the developed anticorrosive composite coating to protect aluminum alloys against chloride corrosive ions species and to further continue with the corresponding research.
Con la coautoría de I. Lázaro (Instituto de Metalurgia, UASLP)
MDPI
2020
Artículo
Coatings, vol. 10, no. 45, 17 págs.
Inglés
Público en general
Gallegos-Melgar, A.; Serna, S.A.; Lázaro, I.; Gutiérrez-Castañeda, E.-J.; Mercado-Lemus, V.H.; Arcos-Gutierrez, H.; Hernández-Hernández, M.; Porcayo-Calderón, J.; Mayen, J.; Monroy, M.D.A. Potentiodynamic Polarization Performance of a Novel Composite Coating System of Al2O3/Chitosan-Sodium Alginate, Applied on an Aluminum AA6063 Alloy for Protection in a Chloride Ions Environment. Coatings 2020, 10, 45.
RECUBRIMIENTO POR ELECTRÓLISIS
Versión publicada
publishedVersion - Versión publicada
Appears in Collections:Artículos Publicados en Revistas Indexadas

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