Origin of Burst-Type Acoustic Emission in Unflawed 7075-T6 Aluminum

    Volume 4, Issue 5 (September 1976)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 6


    Bianchetti, R
    Research assistant, University of California, Davis, Calif.

    Hamstad, MA
    Engineer, Lawrence Livermore Laboratory, Livermore, Calif.

    Mukherjee, AK
    Professor, University of California, Davis, Calif.

    Abstract

    Tensile tests were used to study the acoustic emission from several 7075-T6 aluminum plates. Specimens from one plate produced a large burst-type emission in addition to the continuous emission. Metallographic and fracture surface studies indicated that the burst-type emission resulted from the brittle fracture of large (20 to 60 μm) primary inclusions in the microstructure.


    Paper ID: JTE10518J

    DOI: 10.1520/JTE10518J

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    Author
    Title Origin of Burst-Type Acoustic Emission in Unflawed 7075-T6 Aluminum
    Symposium , 0000-00-00
    Committee E07