STP176

    Effect of Specimen Width on the Notched Bar Impact Properties of Quenched-And-Tempered and Normalized Steels

    Published: Jan 1956


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    Abstract

    Data obtained from testing small specimens is commonly used by engineers in the design of large structures. Since the size and geometric configuration of a test specimen can greatly influence the test results, it is necessary to understand more about this effect and the limitations imposed in order to apply these test data sensibly. The present investigation was made to further the understanding of the effect of specimen geometry on the V-notch Charpy impact properties of oil-quenched-and-tempered E 9310 and normalized SAE 1020 steels. The general plan was to compare the impact properties of standard, one-half, and one-quarter width V-notch Charpy bars. The impact properties determined were the energy, fracture appearance, and contraction of area under the notch transition temperatures; energy per unit fracture area (under the notch); and energy per unit volume.


    Author Information:

    Zeno, R. S.
    General Electric Co., Schenectady, N. Y.


    Paper ID: STP47577S

    Committee/Subcommittee: E01.01

    DOI: 10.1520/STP47577S


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