Abstract

In the present work a two-component solvent free amine cured epoxy coating was used to protect carbon steel. The coated metal was immersed in an aggressive acid solution and monitored by means of electrochemical techniques: Electrochemical Impedance Spectroscopy (EIS) and Electrochemical Noise (EN). These techniques were used to evaluate the coating degradation evolution. The values of the pore resistance Rpo, the impedance at 0.1 Hz (calculated by means of both EIS and EN), and noise resistance (Rn) were the main parameters calculated with the aim of monitoring the evolution of the system along the immersion time. An excellent correlation among the EIS and EN data was found.

Details

Title
Electrochemical Evaluation Of A High Solid Coating In Acid Media
Author
Bethencourt, M; Botana, F J; Cano, M J; Osuna, R M; Sanchez-Amaya, J M
Publication year
2005
Publication date
2005
Publisher
W I T Press
ISSN
17464471
e-ISSN
17433533
Source type
Other Source
Language of publication
English
ProQuest document ID
2262105343
Copyright
© 2005. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the associated terms available at https://www.witpress.com/elibrary .