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    Volume 6, Issue 5 (September 1978)

    Fatigue Crack Arrest at Low Stress Intensities in a Corrosive Environment

    CODEN: JTEOAD

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    Abstract

    Crack opening displacement measurements and scanning electron microscope observations were used to investigate the cause of fatigue crack arrest that occurred in compact specimens of several aluminum alloys at low stress intensities in simulated sump water. The observations for 7475-T7351 specimens indicate that the crack arrest resulted from a progressive buildup of corrosion product on the crack surface.


    Author Information:

    Nordmark, GE
    Senior engineer and group leadermember of ASTM, Alcoa Laboratories, Alcoa Center, Pa.

    Fricke, WG
    Senior engineer and group leadermember of ASTM, Alcoa Laboratories, Alcoa Center, Pa.


    Stock #: JTE10568J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10568J

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    Author
    Title Fatigue Crack Arrest at Low Stress Intensities in a Corrosive Environment
    Symposium , 0000-00-00
    Committee G01