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Visualising dynamic passivation and localised corrosion processes occurring on buried steel surfaces under the effect of anodic transients

Huo, Ying, Tan, Mike Yongjun and Forsyth, Maria 2016, Visualising dynamic passivation and localised corrosion processes occurring on buried steel surfaces under the effect of anodic transients, Electrochemistry communications, vol. 66, pp. 21-24, doi: 10.1016/j.elecom.2016.02.015.

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Title Visualising dynamic passivation and localised corrosion processes occurring on buried steel surfaces under the effect of anodic transients
Author(s) Huo, Ying
Tan, Mike YongjunORCID iD for Tan, Mike Yongjun orcid.org/0000-0002-0765-108X
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
Journal name Electrochemistry communications
Volume number 66
Start page 21
End page 24
Total pages 4
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-05
ISSN 1388-2481
Keyword(s) Science & Technology
Physical Sciences
Electrochemistry
Dynamically changing electrode processes
Localised corrosion
Stray current corrosion
Passivity
Corrosion testing
Wire beam electrode
CATHODIC PROTECTION
Summary A new method of visualising dynamically changing electrode processes has been demonstrated by mapping localised corrosion processes occurring on buried steel surfaces under the effect of anodic transients. Dynamically shifting external electrical interferences such as anodic transients are known to affect the efficiency of cathodic protection (CP) of underground pipelines; however unfortunately conventional techniques including electrochemical methods have difficulties in measuring such effects. In this paper we report that the wire beam electrode has necessary temporal and spatial resolutions required for measuring and visualising the dynamic effects of anodic transients on CP, passivation and localised corrosion processes occurring on buried steel surfaces. For the first time a critical anodic transient duration has been observed and explained as the incubation period for the breakdown of passivity and the initiation of localised corrosion.
Language eng
DOI 10.1016/j.elecom.2016.02.015
Field of Research 091207 Metals and Alloy Materials
030604 Electrochemistry
03 Chemical Sciences
09 Engineering
Socio Economic Objective 870302 Metals (e.g. Composites
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084260

Document type: Journal Article
Collection: Institute for Frontier Materials
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Created: Wed, 22 Jun 2016, 10:24:04 EST

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