Oxidation parameters of oxide dispersion-strengthened steels in supercritical water

Sami Penttilä, Iva Betova, Martin Bojinov, Petri Kinnunen, Aki Toivonen

    Research output: Contribution to journalArticleScientificpeer-review

    2 Citations (Scopus)

    Abstract

    The kinetic parameters of oxidation of two oxide dispersion strengthened (ODS) alloys, PM2000 and MA956, in supercritical water (SCW) are evaluated using an updated model that assumes that the growth of the outer layer is governed by the transport of interstitial cations through the inner layer. The model is able to reproduce quantitatively the depth profiles of individual constituent elements in the inner and outer layers, as well as in the diffusion/transition layer of the alloy between the inner layer and the bulk substrate. The rate constants and diffusion coefficients decrease with time, indicating oxide layer restructuring.
    Original languageEnglish
    Article number011017
    Number of pages8
    JournalJournal of Nuclear Engineering and Radiation Science
    Volume2
    Issue number1
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    steels
    Oxidation
    oxidation
    Oxides
    oxides
    Steel
    Kinetic parameters
    water
    Water
    Rate constants
    Positive ions
    Substrates
    transition layers
    interstitials
    diffusion coefficient
    cations
    kinetics
    coefficients
    profiles

    Keywords

    • diffusion
    • alloys
    • steel
    • oxidation
    • water
    • corrosion

    Cite this

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    title = "Oxidation parameters of oxide dispersion-strengthened steels in supercritical water",
    abstract = "The kinetic parameters of oxidation of two oxide dispersion strengthened (ODS) alloys, PM2000 and MA956, in supercritical water (SCW) are evaluated using an updated model that assumes that the growth of the outer layer is governed by the transport of interstitial cations through the inner layer. The model is able to reproduce quantitatively the depth profiles of individual constituent elements in the inner and outer layers, as well as in the diffusion/transition layer of the alloy between the inner layer and the bulk substrate. The rate constants and diffusion coefficients decrease with time, indicating oxide layer restructuring.",
    keywords = "diffusion, alloys, steel, oxidation, water, corrosion",
    author = "Sami Penttil{\"a} and Iva Betova and Martin Bojinov and Petri Kinnunen and Aki Toivonen",
    year = "2016",
    doi = "10.1115/1.4031127",
    language = "English",
    volume = "2",
    journal = "Journal of Nuclear Engineering and Radiation Science",
    issn = "2332-8983",
    publisher = "American Society of Mechanical Engineers ASME",
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    Oxidation parameters of oxide dispersion-strengthened steels in supercritical water. / Penttilä, Sami; Betova, Iva; Bojinov, Martin; Kinnunen, Petri; Toivonen, Aki.

    In: Journal of Nuclear Engineering and Radiation Science, Vol. 2, No. 1, 011017, 2016.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Oxidation parameters of oxide dispersion-strengthened steels in supercritical water

    AU - Penttilä, Sami

    AU - Betova, Iva

    AU - Bojinov, Martin

    AU - Kinnunen, Petri

    AU - Toivonen, Aki

    PY - 2016

    Y1 - 2016

    N2 - The kinetic parameters of oxidation of two oxide dispersion strengthened (ODS) alloys, PM2000 and MA956, in supercritical water (SCW) are evaluated using an updated model that assumes that the growth of the outer layer is governed by the transport of interstitial cations through the inner layer. The model is able to reproduce quantitatively the depth profiles of individual constituent elements in the inner and outer layers, as well as in the diffusion/transition layer of the alloy between the inner layer and the bulk substrate. The rate constants and diffusion coefficients decrease with time, indicating oxide layer restructuring.

    AB - The kinetic parameters of oxidation of two oxide dispersion strengthened (ODS) alloys, PM2000 and MA956, in supercritical water (SCW) are evaluated using an updated model that assumes that the growth of the outer layer is governed by the transport of interstitial cations through the inner layer. The model is able to reproduce quantitatively the depth profiles of individual constituent elements in the inner and outer layers, as well as in the diffusion/transition layer of the alloy between the inner layer and the bulk substrate. The rate constants and diffusion coefficients decrease with time, indicating oxide layer restructuring.

    KW - diffusion

    KW - alloys

    KW - steel

    KW - oxidation

    KW - water

    KW - corrosion

    U2 - 10.1115/1.4031127

    DO - 10.1115/1.4031127

    M3 - Article

    VL - 2

    JO - Journal of Nuclear Engineering and Radiation Science

    JF - Journal of Nuclear Engineering and Radiation Science

    SN - 2332-8983

    IS - 1

    M1 - 011017

    ER -