Electrochemical assessment of weathering steels under simulated laboratory conditions

  • Beatriz Jaramillo Universidad de Antioquia
  • Jorge Andrés Calderón Universidad de Antioquia
  • Juan Guillermo Castaño Universidad de Antioquia
Keywords: weathering steels, atmospheric corrosion, electrochemical impedance, electrode potential

Abstract

In the last decades weathering steels have became important structural materials in the construction of civil works due to their low rate of corrosion when exposed to urban and industrial atmospheres. The excellent anticorrosive properties of the weathering steels have been attributed to the nature and structure of the rust formed on the material surfaces when certain favorable conditions are present. In  this work a study of the characteristics of the rust initially formed on weathering steels is presented. The study was performed on weathering steels of different nature and different surface conditions: nude, pre-rusted and galvanized, and exposed to conditions that simulate urban and industrial atmospheres. The analysis was carried out by means of electrochemical techniques, such as evaluation of the open-circuit potential and electrochemical impedance during the first two months of exposure.

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Author Biographies

Beatriz Jaramillo, Universidad de Antioquia

Grupo de Corrosión y Protección, Universidad de Antioquia, SIU.

Jorge Andrés Calderón, Universidad de Antioquia

Grupo de Corrosión y Protección, Universidad de Antioquia, SIU.

Juan Guillermo Castaño, Universidad de Antioquia

Grupo de Corrosión y Protección, Universidad de Antioquia, SIU.

References

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Published
2006-08-13
How to Cite
Jaramillo B., Calderón J. A., & Castaño J. G. (2006). Electrochemical assessment of weathering steels under simulated laboratory conditions. Revista Facultad De Ingeniería Universidad De Antioquia, (37), 200-210. Retrieved from https://revistas.udea.edu.co/index.php/ingenieria/article/view/343468