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    Tensile and Creep Strengths of Some Magnesium-Base Alloys at Elevated Temperature


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    Creep tests up to and including rupture were carried out for periods of 1000 hr. Several commercial alloys, as well as some experimental cerium-containing alloys, were studied.

    At room temperature it was observed for many of the alloys that the yield strength was an adequate criterion for design of parts to be loaded steadily for long periods. At the maximum temperature of test, 300 F., this is true of cerium-containing alloys, but the commercial alloys have strengths-to-rupture less than the yield strength. The magnesium-manganese alloy, M, is the best of the commercial alloys in respect to creep properties at elevated temperature.

    Magnesium-base alloys do not lose ductility at rupture under long-time conditions of loading.

    Author Information:

    Moore, A. A.
    The Dow Chemical Co., Midland, Mich.

    McDonald, J. C.
    The Dow Chemical Co., Midland, Mich.

    Committee/Subcommittee: A01.13

    DOI: 10.1520/STP44974S