Corrosion evaluation of oxygen-brine-steel 1020 system by impingement cell

  • Darío Yesid Peña B. Universidad Industrial de Santander
  • María Teresa Suárez S. Universidad Industrial de Santander
Keywords: Mass transfer, shear stress on the wall, impingement cell, electrochemical limit current

Abstract

Corrosion is affected in different ways by the flowing fluids depending on solution- metal interface. To study these phenomena, there are some equipments in laboratory which allow to simulate field conditions by using correlations that can predict mass transfer and shear stress coefficients. However, these correlations have not been validated for all systems and there are no expressions to describe corrosion rates as a function of such parameters. The limit current technique was used to determine the mass transfer and shear stress on the wall, which were compared to those predicted by correlations for an impingement cell; besides, the corrosion rates for different experimental conditions were evaluated. The corrosion mechanism was found to be controlled partially by charge and mass transfer, so not all correlations fitted experimental data. Finally, from the main electrochemical variables, a mathematical correlation of corrosion rate, hydrodynamic variables and mass transfer was obtained.

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Author Biographies

Darío Yesid Peña B., Universidad Industrial de Santander

Grupo de Investigaciones en Corrosión

María Teresa Suárez S., Universidad Industrial de Santander
Grupo de Investigaciones en Corrosión

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Published
2006-08-13
How to Cite
Peña B. D. Y., & Suárez S. M. T. (2006). Corrosion evaluation of oxygen-brine-steel 1020 system by impingement cell. Revista Facultad De Ingeniería Universidad De Antioquia, (37), 141-154. Retrieved from https://revistas.udea.edu.co/index.php/ingenieria/article/view/343457