STP870

    Influence of a Temperature Change on In-Reactor Creep

    Published: Jan 1985


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    Abstract

    The results of a series of pressurized tube creep experiments, conducted in Experimental Breeder Reactor II (EBR-II), were evaluated to determine the effect of a temperature change on the in-reactor creep of AISI Type 316 stainless steel. In contrast to prior breeder reactor experiments where a temperature change was imposed and only a short interval of additional fluence accumulated prior to examination, this experiment examines the long-term effects of a temperature change. Data are reported from three separate experiments in which the temperature history was altered by a linear reduction with fluence, a step increase and a step decrease. Analysis of the data indicated that the long-term creep rate adjusts to the new temperature. However, evidence of swelling and stress-affected swelling resulting from the temperature change were found.

    Keywords:

    radiation, creep, stainless steels, temperature effects, mechanical properties


    Author Information:

    Chin, BA
    Alumni associate professor, chairman, Materials Engineering, Auburn University, Auburn, AL

    Gilbert, ER
    Senior research scientist, Pacific Northwest Labs, Richland, WA


    Paper ID: STP37351S

    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP37351S


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