The effect of thermo-mechanical processing on the oxidation behaviour of Incoloy 800H/HT in Supercritical water

Hamed Akhiani, Majid Nezakat, Sami Penttilä, Jerzy Szpunar

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    Incoloy 800H/HT is one of the promising candidates for the fuel cladding materials in supercritical water-cooled rectors. In the present study, with the help of a specific thermomechanical processing, we studied the effects of grain size and grain boundary character distribution on the oxidation behavior of Incoloy 800H/HT in supercritical water (SCW). The processed samples were exposed to supercritical water at 600 ºC and 25 MPa for 100, 300 and 1000 hours. The results showed that grain size and grain boundaries are important factors that affect the oxidation behaviour of Incoloy 800H/HT in supercritical water. We also found that the thermo-mechanical processing improves the adhesion and integrity of oxide scale.
    Original languageEnglish
    Title of host publicationProceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors (ISSCWR 2015)
    PublisherVTT Technical Research Centre of Finland
    Number of pages15
    EditionUSB stick
    ISBN (Electronic)978-951-38-8289-1
    Publication statusPublished - 2015
    MoE publication typeB3 Non-refereed article in conference proceedings
    Event7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7 - Helsinki, Finland
    Duration: 15 Mar 201518 Mar 2015

    Publication series

    SeriesVTT Technology
    Number216

    Conference

    Conference7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7
    Abbreviated titleISSCWR-7
    CountryFinland
    CityHelsinki
    Period15/03/1518/03/15

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  • Cite this

    Akhiani, H., Nezakat, M., Penttilä, S., & Szpunar, J. (2015). The effect of thermo-mechanical processing on the oxidation behaviour of Incoloy 800H/HT in Supercritical water. In Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors (ISSCWR 2015) (USB stick ed.). [2026] VTT Technical Research Centre of Finland. VTT Technology, No. 216 https://www.vtt.fi/inf/pdf/technology/2015/T216.pdf