STP426

    Solutions to the Problems of High-Temperature Irradiation Embrittlement

    Published: Jan 1967


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    Abstract

    The effects of irradiation on high-temperature mechanical properties of structural materials is described using Type 304 stainless steel as an example. The general effect is one in which the grain-boundary fracture process, but not the deformation process, is affected. The data suggest the primary cause to be helium generated from (n,α) reactions. Several metallurgical techniques for improving the ductilities of irradiated alloys are suggested, and experimental data on Type 304 stainless steel are given for which the degree of improvement is demonstrated.

    Keywords:

    high temperature, embrittlement, radiation effects, steels, stainless steels, grain boundary, helium, ductility


    Author Information:

    Martin, W. R.
    Group leaders, Oak Ridge National Laboratory, Oak Ridge, Tenn

    Weir, J. R.
    Group leaders, Oak Ridge National Laboratory, Oak Ridge, Tenn


    Paper ID: STP41333S

    Committee/Subcommittee: E10.02

    DOI: 10.1520/STP41333S


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