STP570: Void Formation in an Ion Bombarded Cold-Worked Stainless Steel

    Brimhall, JL
    Technical Leader, Battelle Memorial Institute, Pacific Northwest Laboratories, Richland, Wash.

    Uematsu, K
    Manager and assistant senior project engineer, Power Reactor and Nuclear Fuel Development Corporation, Tokyo,

    Nishikawa, T
    Manager and assistant senior project engineer, Power Reactor and Nuclear Fuel Development Corporation, Tokyo,

    Pages: 17    Published: Jan 1975


    Abstract

    The void microstructure produced in a cold-worked Type 316 stainless steel by 5-MeV Ni++ ion bombardment has been studied. Within the temperature range 525 to 730°C, the void swelling shows a maximum at ∼620°C. However, void formation extends to a temperature of 800°C. The results are consistent with those from neutron irradiation studies where the temperature shift is considered. The void swelling is dependent on (dose)mwhere m is in the range 2.5 to 3.3. A maximum swelling of 6 percent at 585°C and 125 displacements per atom were calculated. No saturation in the swelling was observed. Precipitates had a marked effect on the void distribution. The results agree reasonably well with results of similar studies using heavy ion bombardment.

    Keywords:

    ion bombardment, voids, swelling, stainless steels, precipitates, radiation


    Paper ID: STP33710S

    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP33710S


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