Volume 3, Issue 1 (January 1975)

    Stress Relaxation in Tension of CA 172 Copper-Beryllium


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    Stress relaxation data on commercially available copper-beryllium alloy 172 are presented. Test samples were subjected to strains of up to 2% and temperatures from 25 to 181°C. The data show that a high degree of relaxation occurs at higher temperatures and relaxation was found to be independent of the initial stress levels. Time-temperature plots of stress relaxation are presented for designing accelerated relaxation tests on the copper-beryllium alloy tested. The material in the tested condition is generally not used in spring applications and thus results of Austen which compare stress relaxation characteristics of copper-beryllium alloy 172 in the aged and unaged conditions are also presented.

    Author Information:

    Goel, RP
    Member of Technical Staff, Bell Telephone Laboratories, Inc., Columbus, Ohio

    Stock #: JTE10134J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10134J

    ASTM International is a member of CrossRef.

    Title Stress Relaxation in Tension of CA 172 Copper-Beryllium
    Symposium , 0000-00-00
    Committee E28