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    Detection of under deposit corrosion in a CO2 environment by using electrochemical noise and recurrence quantification analysis

    Access Status
    Fulltext not available
    Authors
    Hou, Y.
    Aldrich, Chris
    Lepkova, Katerina
    Kinsella, Brian
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Hou, Y. and Aldrich, C. and Lepkova, K. and Kinsella, B. 2018. Detection of under deposit corrosion in a CO2 environment by using electrochemical noise and recurrence quantification analysis. Electrochimica Acta. 274: pp. 160-169.
    Source Title
    Electrochimica Acta
    DOI
    10.1016/j.electacta.2018.04.037
    ISSN
    0013-4686
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/67641
    Collection
    • Curtin Research Publications
    Abstract

    In this study, the corrosion of carbon steel immersed in CO 2 saturated aqueous solutions, in the presence and absence of sand deposits, were investigated by electrochemical noise measurement and recurrence quantification analysis. Uniform corrosion occurred at samples without sand deposit, while localized corrosion took place at the sand-covered steel samples. These two different corrosion types can be accurately predicted by random forest and principal component models based on recurrence quantification analysis of either electrochemical potential or current noise data, regardless of threshold values. The study provides a potential automated online corrosion monitoring scheme to ensure the integrity of pipelines.

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