Título
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
Autor
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
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: 10.3390/coatings10010045
Referencia de publicación
ISSN/2079-6412
URL/https://www.mdpi.com/2079-6412/10/1/45
Materias
Organic coatings - (PALABRA CLAVE DEL AUTOR) Electrophoretic deposition - (PALABRA CLAVE DEL AUTOR) Potentiodynamic polarization resistance - (PALABRA CLAVE DEL AUTOR) BIOLOGÍA Y QUÍMICA - (CTI) QUÍMICA - (CTI) QUÍMICA INORGÁNICA - (CTI) RECUBRIMIENTO POR ELECTRÓLISIS - (CTI) RECUBRIMIENTO POR ELECTRÓLISIS - (CTI)
Resumen o descripción
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)
Editor
MDPI
Fecha de publicación
2020
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
Coatings, vol. 10, no. 45, 17 págs.
Idioma
Inglés
Audiencia
Público en general
Sugerencia de citación
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.
Repositorio Orígen
CIATEQ Digital
Descargas
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