Evaluation of corrosion inhibitors performance using real-time monitoring methods

  • W. Villamizar-Suárez
  • J. M. Malo
  • A. Martínez-Villafañe
  • J. G. Chacon-Nava
Original Paper


The implementation of real-time corrosion-monitoring techniques can provide a reliable mechanism for detecting the overall effectiveness of chemical treatment programs and contribute to the selection and implementation of an adequate corrosion inhibitor system. Inadequate corrosion monitoring can result in an increase of both uniform and localized (pitting) corrosion activities which can lead to premature material failures. The present research was undertaken to ascertain whether linear polarization resistance (LPR), harmonic analysis (HA), and electrochemical noise (EN) in combination are suitable for the study of performance of corrosion inhibitors under a wide variety of conditions; for example, in the absence and the presence of hydrocarbons with or without the addition of corrosion inhibitors. The findings showed questionable results regarding the usefulness of the pitting factor derived from EN and HA data. In addition, statistical parameters were obtained, such as skew and kurtosis, and these results were compared with the pitting factor.


Inhibitors Electrochemical noise Harmonic analysis On-line monitoring Pitting factor Skew Kurtosis 



The authors would like to thank the Consejo Nacional de Ciencia y Tecnología (CONACyT), Mexico, for financial support to conduct this study. The authours would also like to express their gratitude to Dr. M. Casales-Diaz for her assistance in this study.


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • W. Villamizar-Suárez
    • 1
    • 2
  • J. M. Malo
    • 3
  • A. Martínez-Villafañe
    • 1
  • J. G. Chacon-Nava
    • 1
  1. 1.Centro de Investigación en Materiales AvanzadosChihuahua, ChihMexico
  2. 2.Instituto Colombiano del PetroleoSantanderColombia
  3. 3.Instituto de Investigaciones EléctricasMorelosMexico

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