Electrochemical Noise as a powerful technique for monitoring localized corrosion

Authors

  • Mukhtar Shaglouf Chemical Engineering Department Faculty of Engineering The University of Sirte P.O. Box 674 Sirte – Libya
  • Faraj Al-Tahar Chemical Engineering Department Faculty of Engineering The University of Sirte P.O. Box 674 Sirte – Libya

Keywords:

electrochemical noise, pitting corrosion

Abstract

Corrosion researchers in the recent years gave extra attention to the electrochemical noise technique as it does not require any form of electrode perturbation. Also the EN analysis method can provide information about the kinetics and mechanism of the corrosion process with accuracy that can match conventional electrochemical techniques. Sources of electrochemical noise observed in corrosion can be ascribed to random phenomena, including, partial faradaic currents, adsorption or desorption processes, and particularly the initiation of pitting.  Many authors recommended Electrochemical Noise Measurement (ENM) to be applied for the investigation of the localized corrosion cases. Herein we concentrated on the theoretical study of the application of ENM as a powerful technique to detect and monitor pitting corrosion.

The last part of this paper performed comparisons of different EN studies that detected and used to monitor pitting corrosion cases.

References

. Iverson WP "Transient voltage changes produced in corroding metals and alloys". Frederick (MD): Fort Detrick; 1968.

. Cottis R.A., Turgoose S. and Neuman R. "Corrosion testing made easy": Electrochemical impedance and noise analysis. Houston (TX): NACE; 1999.

. Macdonald D.D., "The Point Defect Model for the Passive State". J. of Electrochemical Society, 1992. 139: p. 3434.

. Debruyn H.J., Lawson K., and Heaver E.E., "On-Line Monitoring Using Electrochemical Noise Measurement in CO-CO2-H2O Systems", in Electrochemical Noise Measurement for Corrosion Applications, ASTM STP, J.R. Kearns, et al., Editors. 1996. p. 214.

. Hladky K. and Dawson J.L., "The Measurement of Localized Corrosion Using Electrochemical Noise". J. of Corrosion Science, 1981. 21(4): p. 317-322.

. Legat A. and Dolecek V., “Corrosion Monitoring System Based on Measurement and Analysis of Electrochemical Noise”. Corrosion, 1995. 51(4): p. 295-300.

. Legat A. and Zevnik C., "The electrochemical noise of mild and stainless steel in various water solutions". J. of Corrosion Science, 1993. 35: p. 1661-1666.

. Cottis R.A., “Sources of Electrochemical Noise in Corroding Systems”. Russian Journal of Electrochemistry, 2006. 42(5): p. 497-505.

. Hladky K. and Dawson J.L., "The measurement of corrosion using electrochemical 1/f noise". J. of Corrosion Science, 1982. 22: p. 231-237.

. Williams D.E., "Electrochemical Corrosion Testing". J. of Dechema Monograph, 1986. 101: p. 253.

. Eden D.E., Hladky K., John DG., and J.L. Dawson, in NACE. 1986: Houston/Tx., USA.

. Mansfeld F. and Xiao H., "Electrochemical noise analysis of iron exposed to NaCl solutions of different corrosivity". J. of Electrochemical Society, 1993. 140(8): p. 2205-2209.

. Shaglouf M. and Cottis R.A., “Flow Effects on Electrochemical Noise. Measurement”, NACE Corrosion 2010, NACE International, San Antonio, USA.

. Cottis R.A., "Interpretation of Electrochemical Noise Data". Corrosion, 2001. 57(3): p. 265.

. Hladky K., Callow L.M., and Dawson J.L., “Corrosion Rates from Impedance Measurements: An Introduction”. British Corrosion Journal, 1980. 15(1): p. 20-25.

. Kim Y. and Buchheit R. G., Electrochimica Acta 2007. 52: p. 2437–2446.

. Williams D.E., Westcott C., and Fleischmann M., "Stochastic Models of Pitting Corrosion of Stainless Steels". J. of Electrochemical Society, 1985. 132: p. 1804-1811.

. Gabrielli C., Huet F., and Keddam M., "Characterization of electrolytic bubble evolution by spectral analysis. Application to a corroding electrode". J. of Applied Electrochemistry, 1985. 15: p. 503-508.

. Mattin S.P. and Burstein G.T., "Progress in the understanding and prevention of corrosion". 1993, Proceedings of the 10th European Corrosion Congress: London, UK. p. 1109.

. Kelly K.G., Inman M.E., and Hudson J.L., "", in Electrochemical Noise Measurement for Corrosion Applications ASTM STP 1277, J.R. Kearns, et al., Editors. 1996.

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Published

2023-01-28