STP1270

    Effects of Neutron Flux and Irradiation Temperature on Irradiation Embrittlement of A533B Steels

    Published: Jan 1996


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    Abstract

    Irradiation embrittlement of A533B steels with low copper contents were investigated from the point of dose rate and irradiation temperature effects. Change of neutron flux in the range from -1012 to -1013 n/cm2/s (E> 1MeV) did not have a significant effect on the embrittlement. Irradiation temperature change of 1°C resulted in the transition temperature shift (ΔT41J) of about 1°C and yield stress change (Δoy) of about 0.8MPa. Factors that might affect the embrittlement of low copper steels are also discussed.

    Keywords:

    irradiation embrittlement, pressure vessel steels, dose rate effect, Charpy shift, hardening


    Author Information:

    Suzuki, M
    Principal engineer, Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken

    Onizawa, K
    research engineer, Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken

    Kizaki, M
    Chief, Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken


    Paper ID: STP16483S

    Committee/Subcommittee: E10.08

    DOI: 10.1520/STP16483S


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