Abstract

The protective performance of epoxy coatings on mild steel immersed in 3.5% NaCl solutions was evaluated by means of electrochemical noise analysis and electrochemical impedance spectroscopy (EIS). Current and voltage noise were recorded and the standard deviations of the potential, current and noise resistance were calculated. Additionally, the spectral noise resistance (RSN) was obtained from the harmonic analysis of the noise data. Finally, EIS measurements were carried out and the data fitted with an equivalent circuit from which the polarization resistance was obtained. Resistance parameters obtained by both techniques were found to be in good agreement. A set of parameters obtained from electrochemical noise measurement is proposed to be used for the assessment of the performance of protective coatings.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.