Abstract
The ac–dc–ac accelerated testing method is an unconventional method that involves subjecting organic coatings on metallic substrates to cycles of cathodic potential. The ac–dc–ac degradation associated with a standard Army epoxy primer on a steel substrate is reported. The ac–dc–ac procedure was modified to include wetting and drying stages. Experimental results demonstrated the influence that the method had on the barrier property, the diffusion of water, and saturated condition of the primer. A quantitative analysis of the transient potential profile that followed the cathodic potential was performed to address processes of charge transfer, transport, and coating relaxation during this step.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
