Oxidation model for construction materials in supercritical water: Estimation of kinetic and transport parameters

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

    Research output: Contribution to journalArticleScientificpeer-review

    13 Citations (Scopus)

    Abstract

    An upgraded model was employed to obtain estimates of kinetic parameters of oxidation of stainless steel Sanicro 28 (UNS N08028) and nickel-based alloy 690 (UNS N06690) in supercritical water at 650. °C/25. MPa up to 2000. h. In the present approach, it is assumed that the growth of the outer layer is governed by the transport of cations through the inner layer via an interstitialcy mechanism. The model is able to reproduce quantitatively the depth profiles of constituent elements oxide layer, as well as in the transition layer situated between the inner layer and the bulk alloy.
    Original languageEnglish
    Pages (from-to)36-46
    JournalCorrosion Science
    Volume100
    DOIs
    Publication statusPublished - 2015
    MoE publication typeA1 Journal article-refereed

    Keywords

    • A. Stainless steel
    • B. Modeling studies
    • C. High-temperature corrosion

    Fingerprint Dive into the research topics of 'Oxidation model for construction materials in supercritical water: Estimation of kinetic and transport parameters'. Together they form a unique fingerprint.

  • Cite this