An overview of recent progresses in monitoring and understanding localized corrosion on buried steel pipelines

Tan, M. Y. J., Varela, F., Huo, Y., Wang, K. and Ubhayaratne, I. 2020, An overview of recent progresses in monitoring and understanding localized corrosion on buried steel pipelines, in Proceedings of the 2020 Conference & Expo on Corrosion, NACE International, Houston, Tex..


Title An overview of recent progresses in monitoring and understanding localized corrosion on buried steel pipelines
Author(s) Tan, M. Y. J.ORCID iD for Tan, M. Y. J. orcid.org/0000-0002-0765-108X
Varela, F.ORCID iD for Varela, F. orcid.org/0000-0002-9055-7413
Huo, Y.
Wang, K.
Ubhayaratne, I.ORCID iD for Ubhayaratne, I. orcid.org/0000-0002-7333-8155
Conference name Corrosion. Conference & Expo (2020 : Houston, Texas)
Conference location Houston, Tex.
Conference dates 14 - 18 Jun. 2020
Title of proceedings Proceedings of the 2020 Conference & Expo on Corrosion
Publication date 2020
Total pages 12
Publisher NACE International
Place of publication Houston, Tex.
Summary Soil is a complex environment where various forms of localized corrosion could occur on buried metal structures such as pipelines. Protective coatings and cathodic protection (CP) are widely applied as principal means of protecting buried steel pipeline from soil corrosion, unfortunately coating defects and disbondment could create some complex environmental conditions for localized corrosion to initiate and propagate. Stray currents could also cause dynamic and rapid localized corrosion on buried pipelines. This paper summarizes typical results and first-hand experiences from recent work aimed at developing corrosion probes based on an electrochemically integrated multi-electrode arrays for monitoring and understanding complex forms of localized corrosion on buried pipelines. Experimental and field testing results have demonstrated the capability of the probes to be used in laboratory research and field conditions. Evidence found on localized corrosion under disbonded coatings and stray currents illustrate some of the unique advantages of the electrode array method for visualizing and understanding localized corrosion of buried steels. It also briefly discusses needs for future work to enhance the reliability of corrosion probes as a structural health monitoring tool for early detection and diagnosis of corrosion, for providing industrial system ‘health’ alarm, for forecasting maintenance requirements, and for generating data for integrated and automated corrosion management systems.
Language eng
Indigenous content off
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2020, NACE International
Persistent URL http://hdl.handle.net/10536/DRO/DU:30142540

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