STP457

    The Effect of Cold Work, Thermal Treatment, and Neutron Irradiation on the Fracture Toughness of Zircaloy-2

    Published: Jan 1969


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    Abstract

    Neutron irradiation of annealed Zircaloy-2 in a 280 C pressurized water environment has been found to cause a considerable loss in fracture toughness. Generally, however, Zircaloy-2 is utilized in PWR systems in a cold worked condition. This paper supplements previous work by presenting the results of an experimental study of the fracture characteristics of cold-worked Zircaloy-2. The results are obtained from a parametric analysis of the temperature- and orientation-dependence of Kic as influenced by cold work, hot pressurized water, and neutron irradiation.

    Keywords:

    Zircaloy-2, radiation effects, fracture toughness, nuclear reactors, cracking (fracturing), anisotropy, cold working, annealing


    Author Information:

    Rowe, R. G.
    University of Illinois, Urbana, Illinois

    Hoagland, R. G.
    Research Engineer, Mechanical Metallurgy, Battelle Northwest, Richland, Washington


    Paper ID: STP41840S

    Committee/Subcommittee: E10.08

    DOI: 10.1520/STP41840S


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