An investigation was carried out to determine the effect of the microstructure of nodular cast iron (NCI) on its cavitation corrosion behavior in natural seawater. The cavitation tests were conducted using a cavitation-induced facility at a frequency of 20 kHz on detached specimens. Morphological examinations on cavitated specimens indicated that the surface of NCI became very rough with large size cavity pits. Examination by optical microscopy of cross-sectioned specimens revealed the presence of microcracks in the bottom of cavity pits. Localized material removal on the NCI surface was due to ductile tearing and brittle modes of failure.


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    Title :

    Cavitation corrosion of nodular cast iron (NCI) in seawater - Microstructural effects


    Additional title:

    Kavitationskorrosion von Gußeisen mit Kugelgraphit in Seewasser - Mikrogefügeeinfluß


    Contributors:
    Al-Hashem, A. (author) / Abdullah, A. (author) / Riad, W. (author)

    Published in:

    Materials Characterization ; 47 , 5 ; 383-388


    Publication date :

    2001


    Size :

    6 Seiten, 11 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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