Effect of pH on carbon steel corrosion in the presence of a sour medium

Authors

  • E. M. Esparza Zúñiga Área Académica de Ciencias de la Tierra y Materiales. Universidad Autónoma del Estado de Hidalgo
  • M. A. Veloz Rodríguez Área Académica de Ciencias de la Tierra y Materiales. Universidad Autónoma del Estado de Hidalgo
  • V. E. Reyes Cruz Área Académica de Ciencias de la Tierra y Materiales. Universidad Autónoma del Estado de Hidalgo
  • J. Uruchurtu Chavarín Centro de Investigación en Ingeniería y Ciencias Aplicadas. Universidad Autónoma del Estado de Morelos

Keywords:

Electrochemistry, Corrosion, Films.

Abstract

The analysis of electrochemical behaviour of carbon steel immersed in a sour water of the petroleum industry, varying the pH, was studied. Different techniques used show the presence of three important corrosion stages: adsorption, species diffusion and localised corrosion. MEB analysis showed the presence of corrosion products only at pH 8.5, while in all the pH tested there are cavities or pitting. The EDS study confirms the presence of oxygen, calcium and chlorides at pH 8.5, where the corrosion products are present.

References

. Z. Foroulis, Corros Prevent Contr. 40, 84, (1993).

. R. Cabrera-Sierra, M. Miranda-Hernández, E. Sosa, T. Oropeza, I. González. Corros Sci. 43, 2305, (2001).

. H. Hoffmeister. Corrosion. 64, 483, (2008).

. S-T. Kim, Y-S. Park. Corrosion. 64, 496, (2008).

. M. A. Veloz, I. González. Electrochim Acta. 48, 135, (2002).

. W. L. Prater. Corrosion. 64, 517, (2008).

. G. O. Llevbare. Corrosion. 62, 340, (2006).

. J. Feyerl, G. Mori, S. Holzleitner, J. Haberl, M. Oberndorfer, W. Havlik, C. Monetti. Corrosion. 64, 175, (2008).

. M. A. Queaishi, R. Sardar. Corrosion. 58, 748, (2002).

. X. Li, L. Tang, L. Li, G. Mu, G. Liu. Corros Sci. 48, 308, (2006).

. E. Sosa, R. Cabrera, M. T. Oropeza, F. Hernández, N. Casillas, R. Tremont, C. Cabrera, I. González. Electrochim Acta. 48, 1665 (2003).

. Método Estándar NACE TM 0177 National Association of Corrosion Engineers, NACE, (1996).

. J. Marín, Tesis Doctoral, UAM-Iztapalapa, México, 2004.

. D. A. Eden. "Electrochemical Noise - The first two octaves" Corrosion Source (2000)

. E. Sosa, R. Cabrera-Sierra, M. E. Rincón, M. T. Oropeza, I. González. J Appl Electrochem. 32, 905, (2002).

. M. A. Veloz, Tesis Doctoral, UAM-Iztapalapa, México, 2003

. H. Amar, J. Benzakour, A. Derja, D. Villemin, B. Moreau, T. Braisaz. Appl Surf Sci 252, 6162 (2006).

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Published

2012-06-15

Issue

Vol. 25 No. 2 (2012)

Section

Research Papers

License

©2025 by the authors; licensee SMCTSM, Mexico. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). 

How to Cite

Effect of pH on carbon steel corrosion in the presence of a sour medium. (2012). Superficies Y Vacío, 25(2), 139-145. https://superficiesyvacio.smctsm.org.mx/index.php/SyV/article/view/219