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    Systematic study of the corrosion properties of selected high-resistance alloys in natural seawater

    Access Status
    Fulltext not available
    Authors
    Machuca, Laura
    Bailey, Stuart
    Gubner, Rolf
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Machuca, L. L. and Bailey, S. I. and Gubner, R. 2012. Systematic study of the corrosion properties of selected high-resistance alloys in natural seawater. Corrosion Science. 64: pp. 8-16.
    Source Title
    Corrosion Science
    DOI
    10.1016/j.corsci.2012.06.029
    ISSN
    0010938X
    URI
    http://hdl.handle.net/20.500.11937/26392
    Collection
    • Curtin Research Publications
    Abstract

    Electrochemical measurements were conducted to evaluate localized corrosion on UNS S31603, UNS S31803, UNS S32750, UNS S31254 and UNS N08825 in natural seawater. Critical pitting and crevice temperatures were assessed using a potentiostatic technique and critical potentials for pitting and crevice corrosion initiation and repassivation were identified using potentiodynamic polarization at temperatures from 5 to 40 °C. Passivity breakdown always occurred through pitting and crevice growth above a transition temperature. Below this temperature, pitting corrosion was not observed on any of the alloys regardless of the applied potential, but initiation of crevice corrosion occurred after the alloys reached a transpassive potential.

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