Análisis comparativo de la resistencia a la corrosión de recubrimientos de zinc y Zn-Al-Mg sobre acero al carbono

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i1.11973

Palabras clave:

Acero revestido; Corrosión; Magnesio; Microestructura.

Resumen

Una de las principales formas de proteger el acero contra la corrosión es mediante el proceso de galvanizado. Este proceso se ha desarrollado continuamente y su primera optimización se realizó mediante la adición de Aluminio en el recubrimiento. Como resultado, se desarrollaron revestimientos de Zn-5% en peso de Al y 55% en peso de Al-Zn. Recientemente, la búsqueda de una mayor resistencia a la corrosión condujo al desarrollo de un revestimiento de zinc con la adición de magnesio y aluminio. En este trabajo, se realizó un estudio comparativo de la resistencia a la corrosión del acero recubierto de zinc y el acero recubierto de aleación de Zn-2% en peso Al-1% en peso Mg. Las muestras se expusieron a pruebas de corrosión por inmersión en electrolito de NaCl 0,1 M y se analizaron utilizando SEM, XDR y EIS. Sobre acero revestido de zinc, el sustrato de acero fue atacado después de 48 días de inmersión, mientras que sobre acero revestido con Zn-2% en peso de Al-1% en peso de Mg, el sustrato de acero mostró un proceso corrosivo después de 90 días de inmersión. El producto de corrosión formado a partir de acero revestido con Zn-2% en peso Al-1% en peso Mg es la causa principal de su mejor resistencia a la corrosión en comparación con el acero revestido con zinc.

Citas

Chen, S., Yan, F., Xue, F., Yang, L., & Liu, J., (2010). X-ray photoelectron spectroscopy investigations of zinc–magnesium alloy coated steel, Materials, Chemistry and Physics, 124, 472–476.

Diler, E., Lescop, B., Rioual, S., Nguyen Vien, G., Thierry, D., & Rouvellou, B., (2014). Initial formation of corrosion products on pure zinc and MgZn2 examinated by XPS, Corrosion Science, 79, 83–88.

Diler, E., Rioual, S., Lescop, B., Thierry, D., & Rouvellou, B., (2012). Chemistry of corrosion products of Zn and MgZn pure phases under atmospheric conditions, Corrosion Science, 65, 178–186.

Duchoslav, J., Arndt, M., Steinberger, R., Keppert, T., Luckeneder, G., Stellnberger, K. H., Hagler, J., Riener, C. K., Angeli, G., & Stifter, D., (2014). Nanoscopic view on the initial stages of corrosion of hot dip galvanized Zn–Mg–Al coatings, Corrosion Science, 83, 327–334.

Dutta, M., Halder, A. K., & Singh, S. B., (2010). Morphology and properties of hot dip Zn–Mg and Zn–Mg–Al alloy coatings on steel sheet, Surface and Coating Technology, 205, 2578–2584.

Elvins, J., Spittle, J. A., Sullivan, J. H., & Worsley, D. A., (2008). The effect of magnesium additions on the microstructure and cut edge corrosion resistance of zinc aluminium alloy galvanized steel, Corrosion Science, 50, 1650–1658.

Frankel, G. S., (1998). Pitting corrosion of metals: a review of the critical factors, Journal of the Electrochemical Society, 145, 2186–2198.

Hosking, N. C., Ström, M. A., Shipway, P. H., & Rudd, C. D., (2007). Corrosion resistance of zinc–magnesium coated steel, Corrosion Science, 49, 3669–3695.

Kairy, S. K., Rometsch, P. A., Diao, K., Nie, J. F., Davies, C. H. J., & Birbilis, N., (2016). Exploring the electrochemistry of 6xxx series aluminum alloys as a function of Si to Mg ratio, Cu content, ageing conditions and microstructure, Electrochimica Acta, 190, 92–103.

Klemm, S. O., Schauer, J. C., Schuhmacher, B., & Hassel, A. W., (2011). High through put electrochemical screening and dissolution monitoring of Mg–Zn material libraries, Electrochimica Acta, 56, 9627–9636.

Krieg, R., Vimalanandan, A., & Rohwerder, M., (2014). Corrosion of zinc and Zn-Mg alloys with varying microstructures and magnesium contents, Journal of the Electrochemical Society, 161, C156–C161.

Le Bozec, N., Thierry, D., Rohwerder, M., Persson, D., Luckeneder, G., & Luwem, L., (2013). Effect of carbon dioxide on the atmospheric corrosion of Zn–Mg–Al coated steel, Corrosion Science, 74, 379–386.

Li, B., Dong, A., Zhu, G., Chu, S., Qian, H., Hu, C., Sun, B., & Wang, J., (2012). Investigation of the corrosion behaviors of continuously hot-dip galvanizing Zn–Mg coating, Surface and Coating Technology, 206, 3989–3999.

Persson, D., Thierry, D., LeBozec, N., & Prosek, T., (2013). In situ infrared reflection spectroscopy studies of the initial atmospheric corrosion of Zn–Al–Mg coated steel, Corrosion Science, 72, 54–63.

Prosek, T., Hagströmb, J., Persson, D., Fuertes, N., Lindberg, F., Chocholaty, O., Taxén, C., Serák, J., & Thierry, D., (2016). Effect of the microstructure of Zn-Al and Zn-Al-Mg model alloys on corrosion stability, Corrosion Science, 110, 71–81.

Prosek, T., Larché, N., Vlot, M., Goodwin, F., & Thierry, D., (2010). Corrosion performance of Zn–Al–Mg coatings in open and confined zones in conditions simulating automotive applications, Materials and Corrosion, 61, 412–420.

Prosek, T., Nazarov, A., Bexell, U., Thierry, D., & Serak, J., (2008). Corrosion mechanism of model zinc–magnesium alloys in atmospheric conditions, Corrosion Science, 50, 2216–2231.

Rodriguez, J., Chenoy, L., Roobroeck, A., Godet, S., & Olivier, M., (2016). Effect of the electrolyte pH on the corrosion mechanisms of Zn-Mg coated steel, Corrosion Science, 108, 47–59.

Salgueiro, M., Allély, C., Ogle, K., & Volovitch, P., (2015). Corrosion mechanisms of Zn(Mg, Al) coated steel in accelerated tests and natural exposure: 1. The role of electrolyte composition in the nature of corrosion products and relative corrosion rate, Corrosion Science, 90, 472–481.

Salgueiro, M., Allély, C., Ogle, K., & Volovitch, P., (2015). Corrosion mechanisms of Zn(Mg,Al) coated steel: the effect of HCO3− and NH4+ ions on the intrinsic reactivity of the coating, Electrochimica Acta, 153, 159–169.

Schuerz, S., Fleischanderl, M., Luckeneder, G. H., Preis, K., Haunschmied, T., Mori, G., & Kneissl, A. C., (2009). Corrosion behaviour of Zn–Al–Mg coated steel sheet in sodium chloride-containing environment, Corrosion Science, 51, 2355–2363.

Schürz, S., Luckeneder, G. H., Fleischanderl, M., Mack, P., Gsaller, H., Kneissl, A. C., & Mori, G., (2010). Chemistry of corrosion products on Zn–Al–Mg alloy coated steel, Corrosion Science 52, 3271–3279.

Thébault, F., Vuillemin, B., Oltra, R., Allely, C., Ogle, K., & Heintz, O., (2015). Influence of magnesium content on the corrosion resistance of the cut-edges of Zn–Mg-coated steel, Corrosion Science, 97, 100–106.

Vimalanandan, A., Bashir, A., & Rohwerder, M., (2014). Zn–Mg and Zn–Mg–Al alloys for improved corrosion protection of steel: some new aspects, Materials and Corrosion, 65, 392–400.

Volovitch, P., Allely, C., & Ogle, K., (2009). Understanding corrosion via corrosion product characterization: I. Case study of the role of Mg alloying in Zn–Mg coating on steel, Corrosion Science, 51, 1251–1262.

Yao, C., Lv, H., Zhu, T., Zheng, W., Yuan, X., & Gao, W., (2016). Effect of Mg content on microstructure and corrosion behavior of hot dipped Zn-Al-Mg coatings, Journal of Alloys and Compounds, 670, 239-248.

Yoo, J. D., Ogle, K., & Volovitch P., (2014). The effect of synthetic zinc corrosion products on corrosion of electrogalvanized steel. II. Zinc reactivity and galvanic coupling zinc/steel in presence of zinc corrosion products, Corrosion Science, 83, 32–37.

Zander, D., Pieper, C., & Köster, U. (2007). Influence of the casting method on microstructure and corrosion of AZ91 and AM50, in: K.U. Kainer (Ed.), Proceedings of the 7th International Conference on Magnesium Alloys and Their Applications, Wiley-VCH Verlag, Weinheim, 757–762.

Descargas

Publicado

25/01/2021

Cómo citar

COSTA, A. N. C. .; SILVA, G. C. .; FERREIRA, E. A. .; NAKAZATO, R. Z. . Análisis comparativo de la resistencia a la corrosión de recubrimientos de zinc y Zn-Al-Mg sobre acero al carbono. Research, Society and Development, [S. l.], v. 10, n. 1, p. e49810111973, 2021. DOI: 10.33448/rsd-v10i1.11973. Disponível em: https://www.rsdjournal.org/index.php/rsd/article/view/11973. Acesso em: 18 may. 2024.

Número

Sección

Ingenierías