Vanadium carbide coatings produced on gray cast iron using the thermo-reactive deposition/diffusion technique
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| Format: | Artículo científico |
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Sociedad Mexicana de Ingeniería Mecánica
2015
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| _version_ | 1876432880902602752 |
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| author | Ariel Augusto Amaya Avila |
| author_facet | Ariel Augusto Amaya Avila |
| contents | Vanadium carbide coatings produced on gray cast iron using the thermo-reactive deposition/diffusion technique Ariel Augusto Amaya Avila Oscar Edwin Piamba Tulcan Jhon Jairo Olaya Florez Ingeniería coating corrosion cast iron Vanadium Carbide Vanadium carbide (VC) coatings were produced on gray cast iron (GCI) with a pearlitic matrix, randomized lamellar graphite, and 3.5% of total carbon. The process was carried out in a molten borax bath at temperatures of 1173 K, 1223 K, and 1273 K for 2, 4, and 6 hours. Ferro vanadium was used as the carbide-forming element and aluminum as the reducing agent. Layer growth parameters were determined on the basis of classical kinetic theory. The coatings were characterized via scanning electron microscopy (SEM), Auger electron spectroscopy (AES), and X-ray diffraction (XRD). In general, it was possible to produce a compact, continuous, homogeneous coating, and a smooth interface with the substrate was formed. Via XRD, the FCC phase of VC was observed, with a mixed orientation along the (111) and (200) crystal planes. Using AES, the presence of mainly vanadium at 437 eV and carbon at 272 eV was verified. Finally, by means of the electrochemical technique of potentiodynamic polarization in a 3% NaCl solution, it was found that the corrosion resistance of the VC-GCI system exhibited better performance than the substrate. 2015 artículo científico 1665-7381 https://www.redalyc.org/articulo.oa?id=76841555002 en http://www.redalyc.org/revista.oa?id=768 Ingeniería Mecánica. Tecnología y Desarrollo application/pdf Sociedad Mexicana de Ingeniería Mecánica Ingeniería Mecánica. Tecnología y Desarrollo (México) Num.3 Vol.5 |
| format | Artículo científico |
| id | redalyc_76841555002 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Sociedad Mexicana de Ingeniería Mecánica |
| spellingShingle | Vanadium carbide coatings produced on gray cast iron using the thermo-reactive deposition/diffusion technique Ariel Augusto Amaya Avila Ingeniería coating corrosion cast iron Vanadium Carbide Vanadium carbide coatings produced on gray cast iron using the thermo-reactive deposition/diffusion technique Ariel Augusto Amaya Avila Oscar Edwin Piamba Tulcan Jhon Jairo Olaya Florez Ingeniería coating corrosion cast iron Vanadium Carbide Vanadium carbide (VC) coatings were produced on gray cast iron (GCI) with a pearlitic matrix, randomized lamellar graphite, and 3.5% of total carbon. The process was carried out in a molten borax bath at temperatures of 1173 K, 1223 K, and 1273 K for 2, 4, and 6 hours. Ferro vanadium was used as the carbide-forming element and aluminum as the reducing agent. Layer growth parameters were determined on the basis of classical kinetic theory. The coatings were characterized via scanning electron microscopy (SEM), Auger electron spectroscopy (AES), and X-ray diffraction (XRD). In general, it was possible to produce a compact, continuous, homogeneous coating, and a smooth interface with the substrate was formed. Via XRD, the FCC phase of VC was observed, with a mixed orientation along the (111) and (200) crystal planes. Using AES, the presence of mainly vanadium at 437 eV and carbon at 272 eV was verified. Finally, by means of the electrochemical technique of potentiodynamic polarization in a 3% NaCl solution, it was found that the corrosion resistance of the VC-GCI system exhibited better performance than the substrate. 2015 artículo científico 1665-7381 https://www.redalyc.org/articulo.oa?id=76841555002 en http://www.redalyc.org/revista.oa?id=768 Ingeniería Mecánica. Tecnología y Desarrollo application/pdf Sociedad Mexicana de Ingeniería Mecánica Ingeniería Mecánica. Tecnología y Desarrollo (México) Num.3 Vol.5 |
| title | Vanadium carbide coatings produced on gray cast iron using the thermo-reactive deposition/diffusion technique |
| topic | Ingeniería coating corrosion cast iron Vanadium Carbide |
| url | https://www.redalyc.org/articulo.oa?id=76841555002 |