Creep-Fatigue Behavior in High Strength Copper Alloys

    Volume 2, Issue 2 (February 2005)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Published Online: 31 January 2005

    Page Count: 14


    Li, M
    Postdoctoral Research Associate, Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN

    Stubbins, JF
    Professor and Head, Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, 214 Nuclear Engineering Laboratory, Urbana, IL

    (Received 11 June 2004; accepted 11 October 2004)

    Abstract

    Copper alloys are found to experience a stress relaxation during holds at maximum tension and maximum compression during cyclic loading patterns. This stress relaxation response has an effect on fatigue life by reducing the numbers of cycles to failure, particularly in the high cycle fatigue, long life regime. The stress relaxation behavior is found even for room temperature loading conditions, well below the temperature regime normally associated with creep and stress relaxation. It is suggested that the creep and stress relaxation deformation modes during hold periods is predominantly through primary creep process.


    Paper ID: JAI12380

    DOI: 10.1520/JAI12380

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    Author
    Title Creep-Fatigue Behavior in High Strength Copper Alloys
    Symposium Effects of Radiation on Materials: 22nd International Symposium, 2004-06-10
    Committee E10