Thermal Shock and Thermal Fatigue Testing

    Volume 19, Issue 5 (September 1991)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 5


    Yuen, JL
    Manager, Technical Staff, and Member, Technical Staff, Rockwell International, Canoga Park, CA

    Walter, RJ
    Manager, Technical Staff, and Member, Technical Staff, Rockwell International, Canoga Park, CA

    (Received 9 February 1990; accepted 23 January 1991)

    Abstract

    A method is described for rapidly screening candidate materials used in severe thermal shock applications. The method involves electron beam heating the surface of specimens using a thermal flux equal to that experienced during actual service operation. Two methods of electron beam radiation are described. In one method, the electron beam is swept across a narrow path with the specimen translated across the beam. In the second method, the specimen remained stationary while the electron beam was repeatedly rastered over a square-shaped area. Similarity of thermal shock damage produced on rocket engine turbine blades during thermal shock tests and during engine firings indicates that computer-controlled electron beam radiation can be used for determining thermal shock resistance of turbine blade materials.


    Paper ID: JTE12594J

    DOI: 10.1520/JTE12594J

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    Author
    Title Thermal Shock and Thermal Fatigue Testing
    Symposium , 0000-00-00
    Committee E08