STP1325

    Evaluation of Low-Temperature Swelling in Austenitic Stainless Steels

    Published: Jan 1999


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    Abstract

    Major portions of structural materials of near-term fusion blankets and light water reactor core components are subject to neutron irradiation at low temperatures and low fluxes compared to those in typical void swelling studies using fast reactors. Observed swelling in austenitic stainless steels at temperatures below 673K are generally very small under typical fast reactor irradiation conditions, however, the amount of swelling might be significantly influenced by neutron flux, helium generation rate, etc. In this work, using a reaction rate theory model of swelling, the influences of such key irradiation parameters on low temperature swelling behavior in austenitic stainless steels will be demonstrated to aid the evaluation of swelling at low temperature and low neutron flux conditions.

    Keywords:

    swelling, austenitic stainless steel, damage rate effects, He/dpa effects, reaction rate theory, cascade effect


    Author Information:

    Katoh, Y
    Associate Professor, Institute of Advanced Energy, Kyoto University, Kyoto


    Paper ID: STP13903S

    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP13903S


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