The deep sea corrosion of ferrous alloys that undergo uniform corrosion without forming a passive layer is related to the amount of dissolved oxygen available in the sea water. The performance of some ferrous alloys at depths of 500, 1200, 3500, and 5100 m in the Indian Ocean has been studied. The results of atomic absorption spectroscopy have revealed that the corrosion product present on mild steel coupons is FeOOH. The results of experiments in shallow water have shown that micro- and macrobiological growths play a significant role in the corrosion of ferrous materials. However, in deeper waters, the absence of macrofouling was evident, and corrosion was not related to any biological product but mainly to the electrochemical reaction of these alloys with sea water. The results of morphological studies by SEM on the surfaces of exposed specimens are also presented.


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    Title :

    Corrosion of ferrous alloys in deep sea environments


    Additional title:

    Korrosion von Eisenlegierungen in der Tiefsee


    Contributors:

    Published in:

    British Corrosion Journal ; 37 , 4 ; 257-266


    Publication date :

    2002


    Size :

    10 Seiten, 16 Bilder, 2 Tabellen, 30 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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