Abstract
This study focused on the application of electrochemical noise to assess the protection level of corrosion products formed on copper during relatively short exposure time in different outdoor atmospheres. Electrochemical noise, cathodic reduction measurements and gravimetric (mass loss) analysis were applied to copper samples exposed at urban and rural/industrial areas in Cuba for 4 months. Measurements of Electrochemical current noise indicated that the poorest protective corrosion products were formed on samples exposed to atmospheres with high concentration of H2S which agreed with the corrosion rate determined by mass loss and electrochemical chronopotentiometry (cathodic reduction). The electrochemical noise methodology proposed in this work showed acceptable and reproducible results by using an electrochemical cell in which the electrolyte was formed by a distilled-water wetted cloth in contact with the compounds present on a corroded metallic surface. This methodology indicated that the corrosion protection level of the corrosion products formed on copper is related to the corrosivity of the atmosphere.
References
Lobnig R, Frankenthal R, Siconolfi D et al (1994) J Electrochem Soc 141:2935
Aastrup T, Wadsak M, Leygraf C et al (2000) J Electrochem Soc 147:2543
Morcillo M, Almeida E, Marrocos M, Rosales B (2001) Corrosion 57:967
Nassau K, Gallagher KP, Miller EA, Graedel TE (1987) Corros Sci 27:669
Strehblow H, Titze B (1980) Electrochim Acta 25:839
Persson D, Leygraf C (1990) J Electrochem Soc 137:3163
Itoh J, Sasaki T, Ohtsuka T (2000) Corros Sci 42:1539
Nakayama S, Kaji T, Shibata M, Notoya T, Osakai T (2007) J Electrochem Soc 154:C1
Nakayama S, Kimura A, Shibata M, Kiwabata S, Osakai T (2001) J Electrochem Soc 148:B467
Wall FD, Martinez M, Missert N, Copeland R, Kilgo A (2005) Corros Sci 47:17
Gamal A, Madhy EI (2005) Corros Sci 47:1370
Cox A, Lyon S (1994) Corros Sci 36:1167
García-Ochoa EM, Ramírez R, Torres V, Rodríguez FJ, Genescá J (2002) Corrosion 58:756
Torres V, Rodríguez FJ, García-Ochoa EM, Genescá J (2006) Anticorros Meth Mater 53:348
Eden DA, Rothwell AN (1992) Electrochemical noise data: analysis, interpretation and presentation. Corrosion/92; NACE International, Houston, TX, Paper No. 292
Cottis R, Turgoose S (1999) Electrochemical impedance and noise. NACE, Houston
Reichert DL (1996) In: Kearns JR, Scully JR, Roberge PR, Dawson JL et al (eds) Electrochemical noise measurements for corrosion applications. ASTM, Philadelphia
Uruchurtu J, Dawson JL (1987) Corrosion 43:19
Tan YJ, Bailey S, Kinsella B (1996) Corros Sci 38:1681
Garcia-Ochoa EM, Genescá J (2004) Surf Coat Tech 184:322
Tran TM, Fiaud C, Sutter EM (2005) Corros Sci 47:1724
Tran TM, Fiaud C, Sutter EM, Villanova A (2003) Corros Sci 45:2787
Watanabe M, Tomita M, Ichin T (2001) J Electrochem Soc 148:B522
Acknowledgements
The authors appreciate the contribution of C. Valdes and Y. Martin, E. Gonzalez and J. Perez (National Center for Scientific Research (CNIC), Havana City, Cuba). The authors thank Dr. David Greenfield (Sheffield Hallam University) for the revision and comments made to the manuscript.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
García-Ochoa, E., González-Sánchez, J., Corvo, F. et al. Application of electrochemical noise to evaluate outdoor atmospheric corrosion of copper after relatively short exposure periods. J Appl Electrochem 38, 1363–1368 (2008). https://doi.org/10.1007/s10800-008-9572-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10800-008-9572-9