Abstract
Epoxy primer coated aluminum alloys are artificially aged in three environments: UVA, UVA-neutral and UVA-acidic alternating-immersion. The corrosion morphology, corrosion products, electrochemical impedance, and molecular structure of the coated specimens are explored using SEM, EDS, EIS, and ATR-FTIR. The results demonstrate that the residual thicknesses of the primer decrease linearly under UVA-acidic alternating-immersion. The impedances of the coated specimens change in different ways in the three environments, which are influenced by the synergistic effect of the accumulation and dissolution of corrosion products, and post-curing of the primer. The degradation mechanisms and electrochemical equivalent circuits are analyzed at different stages.
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.
