STP1366: The Question of Saturation of Void Swelling in Fe-Cr-Ni Austenitic Alloys

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

    Black, CA
    Product Engineer, Wyman-Gorden Investment Casting, Carson City, NV

    Pages: 11    Published: Jan 2000


    Abstract

    Whereas in earlier publications it appeared that a possible saturation of neutron-induced void swelling might be developing at temperatures of 400 and 427°C in annealed Fe-Cr-Ni model alloys in a manner that was dependent on composition, data obtained at higher neutron exposures in EBR-II have led to the conclusion that such an expectation was erroneous. At all temperatures in the range 400–650°C, the neutron induced swelling eventually reaches ∼1%/dpa and continues to very high swelling levels thereafter without any hint of saturation.

    Keywords:

    Fe-Cr-Ni austenitic alloys, void swelling, neutron irradiation, saturation


    Paper ID: STP12430S

    Committee/Subcommittee: E10.08

    DOI: 10.1520/STP12430S


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