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| Evaluation of a Cr3C2(NiCr) coating deposited on s4400 by means of an HVOF process and used for flow plates of PEM fuel | |
| German Orozco JOSE TRINIDAD PEREZ QUIROZ Mariela Rendón Belmonte Jorge Teran-Guillen Andres Torres-Acosta Jesús Porcayo Calderón | |
| Acceso Abierto | |
| Artículo | |
| Inglés | |
| 2012 | |
| 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. | |
| http://repositorio.ineel.mx/jspui/handle/123456789/78 | |
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