Corrosion monitoring of buried gas pipeline by magnetic electrochemical impedance spectroscopy is reported. Field tests conducted on in-service gas trasmission pipelines in the Washington and Baltimore metropolitan area are presented for cathodic protection current mapping, AC impedance of a pipeline segment containing a holiday, and stray current mapping. This method is especially interesting in its ability to study large systems in which the physical size makes current distribution and localized current interactions likely.
Corrosion detection on underground gas pipeline by magnetically assisted AC impedance
Korrosionserkennung bei erdverlegten Gasrohrleitungen mittels magnetisch unterstützter Wechselstromimpedanz
Materials Performance ; 30 , 3 ; 14-18
1991
5 Seiten, 4 Bilder, 5 Quellen
Aufsatz (Zeitschrift)
Englisch
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