Studying the cathodic disbondment of coatings using electrochemical impedance spectroscopy Mahdavi,F, Tan,MYJ, Forsyth,M, Gupta,R and Abreu,D 2014, Studying the cathodic disbondment of coatings using electrochemical impedance spectroscopy, in Corrosion and Prevention : Proceedings of the 2014 Annual Conference of the Australasian Corrosion Association, Australasian Corrosion Association, [Darwin, Northern Terroritory], pp. 1-12. Attached Files Name Description MIMEType Size Downloads Title Studying the cathodic disbondment of coatings using electrochemical impedance spectroscopy Author(s) Mahdavi,F Tan,MYJ Forsyth,M orcid.org/0000-0002-4273-8105 Gupta,R Abreu,D Conference name Australasian Corrosion Association. Conference (2014 : Darwin, Northern Territory) Conference location Darwin, Northern Terroritory Conference dates 15-18 Nov. 2014 Title of proceedings Corrosion and Prevention : Proceedings of the 2014 Annual Conference of the Australasian Corrosion Association Editor(s) [Unknown] Publication date 2014 Conference series Australasian Corrosion Association Conference Start page 1 End page 12 Total pages 12 Publisher Australasian Corrosion Association Place of publication [Darwin, Northern Terroritory] Keyword(s) Cathodic disbondment Cathodic protection Coating defect Electrochemical impedance spectroscopy (eis) Epoxy coating Summary The disbondment of protective organic coatings is a widely reported pipeline coating failure mode in the oil and gas industry. Traditional methods of evaluating cathodic disbondment of pipeline coatings are based on visual inspection of pipeline conditions, and laboratory testing of cathodic disbondment resistance (CDR) using standard methods such as ASTM G8. Although some other laboratory-based techniques, such as scanning kelvin probe and scanning acoustic microscopy have been used to study the cathodic disbondment (CD) of coatings, these are often difficult to apply in practical testing. Over the past decade, electrochemical impedance spectroscopy (EIS) has been employed as a potential method for measuring CD. This paper reports preliminary results from an EIS study designed to characterise CD behaviour of epoxy coatings under excessive cathodic protection. EIS data correlated well with the area of disbonded coating. Analysis of EIS data can provide valuable information on the initiation and rates of CD. Language eng Field of Research 030604 Electrochemistry 091207 Metals and Alloy Materials Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding) HERDC Research category E1 Full written paper - refereed ERA Research output type E Conference publication Copyright notice ©2014, Australasian Corrosion Association Persistent URL http://hdl.handle.net/10536/DRO/DU:30069096 Document type: Conference Paper Collections: Faculty of Science, Engineering and Built Environment School of Engineering Institute for Frontier Materials GTP Research Related Links Link Description   Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Sun, 18 Jan 2015, 19:13:07 EST Sun, 18 Jan 2015, 19:14:00 EST Mon, 19 Jan 2015, 04:00:41 EST Wed, 28 Jan 2015, 07:45:05 EST Thu, 09 Apr 2015, 16:31:43 EST Thu, 30 Apr 2015, 06:10:12 EST Thu, 30 Apr 2015, 16:24:12 EST Thu, 30 Apr 2015, 16:24:55 EST Fri, 01 May 2015, 11:36:49 EST Tue, 12 May 2015, 12:05:52 EST Tue, 12 May 2015, 12:06:48 EST Tue, 12 May 2015, 12:09:09 EST Wed, 27 May 2015, 15:18:55 EST Thu, 28 May 2015, 08:23:56 EST Mon, 08 Jun 2015, 13:32:05 EST Fri, 12 Jun 2015, 15:29:34 EST Mon, 15 Jun 2015, 09:57:01 EST Mon, 15 Jun 2015, 09:59:00 EST Thu, 18 Jun 2015, 12:47:48 EST Mon, 12 Oct 2015, 15:49:40 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 4 times in Scopus Search Google Scholar Access Statistics: 514 Abstract Views, 11 File Downloads  -  Detailed Statistics Created: Sun, 18 Jan 2015, 19:14:00 EST

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