Monitoring cathodic shielding and corrosion under disbonded coatings
Varela,F, Tan,Y, Hinton,B and Forsyth,M 2014, Monitoring cathodic shielding and corrosion under disbonded coatings, in ICC 2014 : Proceedings of the 19th International Corrosion Congress, International Corrosion Council, South Korea, pp. 1-6.
This work presents a novel corrosion monitoring probe designed for simulating the conditions developed under disbonded coatings and for measuring current densities and their distribution over a simulated pipeline surface. The probe’s concept was experimentally evaluated via immersion tests under Cathodic Protection (CP) in high resistivity aqueous solution. Under the disbonded area, anodic currents as well as cathodic currents were both measured. Anodic current densities were used to calculate metal losses by means of Faraday’s law. Calculated corrosion patterns were compared with corrosion damage observed at the probe’s surface after a period of test. The probe’s working principles are explained in terms of simple electrochemistry.
Language
eng
Field of Research
030304 Physical Chemistry of Materials 091207 Metals and Alloy Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.