RT info:eu-repo/semantics/article T1 Sensing electrochemical activity in polymer coated metals during the early stages of coating degradation by means of the scanning vibrating electrode technique A1 Souto, Ricardo Manuel A1 Santana, Juan José A1 González-Guzmán, Jorge A1 Izquierdo Pérez, Javier A1 González, Sergio K1 Corrosion K1 Organic coatings K1 Scanning vibrating electrode technique K1 Iron dissolution K1 Oxygen reduction AB Application of scanning vibrating electrode technique (SVET) for corrosion studies of organiccoatings on reactive metals is presented. SVET was used to monitor the electrochemicalprocesses at painted steel immersed in either 10 mM Na2SO4 or 10 mM NaCl aqueoussolutions. The coated samples were investigated after a scratch was operated through thepolymer matrix down to the metal-substrate surface in order to simulate a defect across thecoating. SVET imaging probes that the electrochemical behaviour of the system is differentdepending on the electrolyte employed. Enhanced coating delamination originating from thedefect is observed when chloride ions are present in the environment YR 2010 FD 2010 LK http://riull.ull.es/xmlui/handle/915/19114 UL http://riull.ull.es/xmlui/handle/915/19114 LA en DS Repositorio institucional de la Universidad de La Laguna RD 27-dic-2024