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    The Influence of Transmutation and Initial Composition on the Microstructural Evolution of Vanadium and V-Cr-Ti Alloys Irradiated in HFIR


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    Pure vanadium and a series of V-Cr and V-5Ti-Cr alloys were irradiated at 300, 400, 500 and 600°C to doses of 8–10 dpa in the HFIR mixed spectra reactor. Transmutation of vanadium increased the chromium content by 6–7 additional percent. This compositional change had the largest impact on the microstructural and microchemical evolution of the alloys and also dominated the change observed in alloy density. Even more importantly, the results were quite different than would be expected from the results of similar irradiation in FFTF where transmutation is much lower.


    vanadium alloys, transmutation, swelling, phase stability, neutron irradiation

    Author Information:

    Ohnuki, S
    Professors, Hokkaido University, Sapporo,

    Takahashi, H
    Professors, Hokkaido University, Sapporo,

    Garner, FA
    Senior Staff Scientist, Pacific Northwest National Laboratory, Richland, WA

    Committee/Subcommittee: E10.08

    DOI: 10.1520/STP12465S