Atom probe tomography analysis of high dose MA957 at selected irradiation temperatures

N.A. Bailey, Erich Stergar, M. Toloczko, P. Hosemann

    Research outputpeer-review


    The oxide dispersion strengthened alloy MA957, irradiated up to 113 dpa in the Fast Flux Test Facility-Materials Open Test Assembly, was investigated by 3D-atom probe tomography. Oxide particles appear to be stable under irradiation at elevated temperatures. Although, the nominal chemistry of the particles does not change, evidence suggests occurence of ballistic dissolution and reformation processes. At 412 °C and 109 dpa also the chromium rich α' phase appears between oxide particles suggesting radiation induced segregation.
    Original languageEnglish
    Pages (from-to)225-234
    JournalJournal of Nuclear Materials
    Issue number04
    StatePublished - Apr 2015

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