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    Article

    Early stage crack tip dislocation morphology in fatigued copper

    Observations of dislocation structures around the fatigue cracks in the early stage in polycrystalline copper were made through an ultrahigh voltage electron microscope operating at 2000 kV. Ladder like struct...

    K. Katagiri, A. Omura, K. Koyanagi, J. Awatani… in Metallurgical Transactions A (1977)

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    Article

    A study of the fatigue limit of copper

    This paper shows that, in fatigue tests on copper, a great number of cycles beyond expectation is necessary for determining the fatigue limit. An ultrahigh frequency fatigue testing machine was used andS-N curves...

    J. Awatani, K. Katagiri, A. Omura, T. Shiraishi in Metallurgical Transactions A (1975)