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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad de Tarapacá
2014
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| Online Access: | https://www.redalyc.org/articulo.oa?id=77231016005 |
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Table of Contents:
- Production and characterization of niobium carbide coatings produced on tool steels by thermoreactive deposition/diffusion F.E. Castillejo D.M. Marulanda J.J. Olaya Ingeniería Diffusion impedance corrosion tool steels niobium carbide In this work, niobium carbide coatings were deposited on AISI M2, H13, and D2 tool steels by thermoreactive deposition/diffusion. The carbides were obtained using salt baths composed of molten borax, aluminum, and ferroniobium at a temperature of 1020 °C for 4 hours. The coatings were observed via scanning electron microscopy. The phases were determined using X-ray diffraction, and Vickers indentation was used to determine the hardness. The electrochemical behavior was studied via potentiodynamic polarization curves to determine the rate of corrosion and electrochemical impedance spectroscopy was used to determine the resistance to polarization. The results were compared with the properties of the substrate without a coating, and in general, greater hardness and better corrosion resistance were observed with the coatings. 2014 artículo científico 0718-3291 https://www.redalyc.org/articulo.oa?id=77231016005 en http://www.redalyc.org/revista.oa?id=772 Ingeniare. Revista Chilena de Ingeniería application/pdf Universidad de Tarapacá Ingeniare. Revista Chilena de Ingeniería (Chile) Num.2 Vol.22