A physical scale modelling technique (DACS) has been used to examine the protection of enclosed marine systems, as illustrated by a flooded tube holding an aluminium alloy torpedo. Two experimental tri-metallic systems were employed: a 1/10 linear-scale model and a cell with the correct electrolyte volume/ (cathodic surface area ratio. Three electrolytes were examined; sea water (undiluted and diluted to 1/10 conductivity) and NaCl solution. Decreases in pH are discussed in relation to volume/area ratios and anodic/cathodic reactions but are attributed primarily to the formation of chalking deposits in sea water electrolytes. The DACS technique can be used to study enclosed ICCF configurations by employing a sea water reservoir for flowing systems or NaCl solutions under static conditions. The behaviour of protected materials should be examined in cells which provide the correct volume/area ratio and contain undiluted electrolyte.


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    Title :

    Modelling the impressed current cathodic protection of enclosed marine systems


    Additional title:

    Modellierung des stromführenden Kathodenschutzes von geschlossenen Unterwassersystemen


    Contributors:


    Publication date :

    1989


    Size :

    8 Seiten, 3 Bilder, 2 Tabellen, 5 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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