Rare earth conversion coatings grown on AA6061 aluminum alloys. Corrosion studies

The present work is aimed to investigate the corrosion resistance of rare earth (RE) protective coatings deposited by spontaneous deposition on AA6061 aluminum alloy substrates. Coatings were deposited from water-based Ce(NO3)3 and La(NO3)3 solutions by varying parameters such as rare earth solution...

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Detalhes bibliográficos
Autores: BRACHETTI SIBAJA, S.B., DOMINGUEZ CRESPO, MIGUEL ANTONIO, TORRES HUERTA, AIDE MINERVA, ONOFRE BUSTAMANTE, EDGAR
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:México
Recursos:Instituto Politécnico Nacional
Repositorio:Repositorio Digital del IPN
OAI Identifier:oai:www.repositoriodigital.ipn.mx:123456789/21607
Acesso em linha:http://www.repositoriodigital.ipn.mx/handle/123456789/21607
Access Level:acceso abierto
Descrição
Resumo:The present work is aimed to investigate the corrosion resistance of rare earth (RE) protective coatings deposited by spontaneous deposition on AA6061 aluminum alloy substrates. Coatings were deposited from water-based Ce(NO3)3 and La(NO3)3 solutions by varying parameters such as rare earth solution concentration, bath temperature and immersion time. The values of the Tafel slopes indicate that the cathodic process is favored by concentration polarization rather than activation polarization. © 2014, Sociedad Química de México.