STP683

    Effects of Irradiation on the Mechanical Properties of Austenitic Stainless Steels Under Dynamic Loading

    Published: Jan 1979


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    Abstract

    Effects of strain rate and temperature on AISI 316L austenitic stainless steel irradiated to a dose of 2.2 displacements per atom (dpa) have been examined. Strain rates ranged between 10-2 s-1 and 102 s-1. Temperatures were ambient and 400°C. Techniques used for preparation of specimens and testing are described together with experimental results. The superposition of the effects of strain rate and irradiation causes important reduction of ductility both at room and at high temperature. Therefore, special cautions should be taken in fixing safety coefficients for the calculation of dynamically loaded structures, such as pressure vessels, in case of an accident in fast breeder reactors.

    Keywords:

    austenitic stainless steel, dynamic material properties, strain rate, constitutive equation, irradiation, Hopkinson's bar, fracture strain


    Author Information:

    Albertini, C
    Engineers, Commission of the European Communities, Joint Research Centre, ISPRA-Establishment, ISPRA (Varese),

    Del Grande, A
    Engineers, Commission of the European Communities, Joint Research Centre, ISPRA-Establishment, ISPRA (Varese),

    Montagnani, M
    Engineers, Commission of the European Communities, Joint Research Centre, ISPRA-Establishment, ISPRA (Varese),


    Paper ID: STP38187S

    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP38187S


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