Stability of oxides on stainless steel during simulated PWR shutdown and start-up

Martin Bojinov, Timo Laitinen, Kari Mäkelä, Timo Saario, Pekka Sirkiä, Thomas Buddas, Magnus Halin, K. Tompuri

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    Oxide films formed on OX18H10T Ti-stabilised stainless steel were characterised using the contact electric resistance (CER) technique and electrochemical impedance spectroscopy (EIS). The aim was to determine the effects of H2O2 injection temperature on the stability of the oxide films during simulated VVER shutdown and subsequent start-up conditions and to recognise possible changes in the thickness and structure of oxide films as a result of H2O2 injection at different temperatures. Stability of the compact part of the oxide film is not greatly influenced by the injection temperature of hydrogen peroxide during a cool-down period. On the other hand, the injection temperature had a marked influence on the deposited crystals in the outer part of the film.
    Original languageEnglish
    Title of host publicationPlant Life Management
    Subtitle of host publicationMidterm status of a R&D project
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages195-210
    ISBN (Electronic)951-38-5728-X
    ISBN (Print)951-38-5727-1
    Publication statusPublished - 2001
    MoE publication typeA4 Article in a conference publication
    EventPlant Life Management: Midterm status of a R&D project - Espoo, Finland
    Duration: 1 Jan 20011 Jan 2001

    Publication series

    SeriesVTT Symposium
    Number218
    ISSN0357-9387

    Conference

    ConferencePlant Life Management
    CountryFinland
    CityEspoo
    Period1/01/011/01/01

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