A simulation test method for pitting corrosion was established to reproduce the pitting corrosion phenomenon on the inner bottom plate of COT (cargo oil tank). By using this test method, effects of alloy elements to pitting corrosion were disclosed. The low alloy corrosion resistant steel 'JFE-SIP-OT' was developed where the number of pitting corrosion was greatly decreased. The pitting corrosion decrease effect of the zinc-primer discovered by investigating some actual tankers can be extended and strengthened by this corrosion resistant steel. When the corrosion resistant steel 'JFE-SIP-OT' is applied to a tanker with the zinc-primer, the number of pitting corrosion for which the repair at the dock is necessary can be decreased to '0'.


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    Title :

    Corrosion resistant steels for inner bottom plates of cargo oil tank


    Additional title:

    Korrosionsbeständige Stähle für die inneren Bodenplatten von Ladetanks für Öltanker
    Titel japanisch


    Contributors:

    Published in:

    JFE Giho ; 18 ; 53-56


    Publication date :

    2007


    Size :

    4 Seiten, 8 Bilder, 2 Tabellen, 7 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Japanese




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