Título
Evaluation of a Cr3C2(NiCr) coating deposited on s4400 by means of an HVOF process and used for flow plates of PEM fuel
Autor
German Orozco
JOSE TRINIDAD PEREZ QUIROZ
Mariela Rendón Belmonte
Jorge Teran-Guillen
Andres Torres-Acosta
Jesús Porcayo Calderón
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
Research of the electrochemical behavior of a Cr3C2(NiCr) coating deposited on S4400 through the use of an HVOF (high velocity oxygen-fuel) thermal spraying process was studied. The electrolyte used was a solution of H2SO4 0.5 M + 2 ppm Fˉ used at environment temperature. As a reference electrode a mercurous sulfate (Hg2SO4) was used and a graphite bar as a counter electrode. The morphological aspect of the coating evaluated was analyzed by SEM (Scanning Electron Microscopy) before and after the electrochemical evaluation. The coating electrochemical values obtained for a period of 576 hrs fulfilled the corrosion resistance criteria required by USDOE (US Department of Energy). As a starting point, this coating could be considered in flow plates for PEM-based (Proton Exchange Membrane) fuel cells. Nevertheless, the loss of coating during this period may limit its application.
Fecha de publicación
2012
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
ISSN 1452-3981
Idioma
Inglés
Relación
ISSN 1452-3981
ISSN 1452-3981
Audiencia
Público en general
Repositorio Orígen
Repositorio Institucional de Acceso Abierto de Información Científica, Tecnológica y de Innovación del INEEL
Descargas
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