The effect of loss of cathodic protection (CP) on steel in soil is presented for simulated (anodic) telluric currents over and above CP currents. The potential of the steel is intentionally shifted to 0 V vs. silver/silver chloride (Ag/AgCl, saturated) for 20% of the test time in a cyclic manner (with a number of different cycle times tested). It is seen that the level of corrosion experienced by the steel is dominated by the length of individual transients and not cumulative anodic exposure. The nature of the soil was found to be important, with clay soil leading to significantly more corrosion than sandy soil.


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    Title :

    Simulated transient loss of cathodic protection for buried pipelines


    Additional title:

    Simulierter Übergangsverlust beim kathodischen Schutz erdverlegter Rohrleitungen


    Contributors:
    Birbilis, N. (author) / Holloway, L.J. (author) / Forsyth, M. (author)

    Published in:

    Corrosion, Houston ; 61 , 5 ; 498-501


    Publication date :

    2005


    Size :

    4 Seiten, 3 Bilder, 1 Tabelle, 15 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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