Volume 29, Issue 1 (January 2001)

    Small Punch Testing in Creep Conditions

    (Received 28 June 1999; accepted 12 September 2000)

    CODEN: JTEOAD

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    Abstract

    The creep behavior of low-alloy steel was studied using small punch tests under the action of constant force. Disks with a diameter of 8 mm and a thickness of 0.5 mm were pushed against a die with a bore of 4 mm diameter using a ball of 2.5 mm diameter. The time dependence of the central deflection was registered. The resulting dependence has the sigmoidal shape typical of conventional creep tests but with a very significant primary stage. The conventional constant-stress creep tests were performed for comparison. A simple method for the approximate correlation of the force in punch tests with the stress in conventional creep tests of the same duration is suggested.


    Author Information:

    Dobeš, F
    Senior researcher and group leader, Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno,

    Milička, K
    Senior researcher and group leader, Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno,


    Stock #: JTE12388J

    ISSN: 0090-3973

    DOI: 10.1520/JTE12388J

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    Author
    Title Small Punch Testing in Creep Conditions
    Symposium , 0000-00-00
    Committee A01