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    Intergranular Fatigue Fracture of Chemical Lead at Room Temperature

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    Intergranular fatigue fracture was investigated by performing a series of torsional reversed creep and fatigue tests on tubular specimens of chemical lead at room temperature.

    It is shown that the intergranular fatigue life, 2Nfgb, is related to the amount of grain-boundary sliding per reversal, ΔUgb, by a simple expression 2NfgbΔUgb=constant This simple relationship is valid for all cyclic test results in this investigation regardless of stress amplitude and strain rate.

    A“strain rate modified strain range” parameter is found to be useful for describing the strain rate dependence of the intergranular fatigue fracture.


    fatigue (materials), creep properties, strains, strain rate, intergranular fracture, grain-boundary sliding, lead (metal), damage, fatigue tests

    Author Information:

    Kitagawa, M
    Ishikawajima-Harima Heavy Industries Co., Ltd., Research Institute, Tokyo,

    Committee/Subcommittee: E08.05

    DOI: 10.1520/STP38024S