Journal Published Online: 01 September 1991
Volume 19, Issue 5

Thermal Shock and Thermal Fatigue Testing



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.

Author Information

Yuen, JL
Rockwell International, Canoga Park, CA
Walter, RJ
Rockwell International, Canoga Park, CA
Pages: 5
Price: $25.00
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Stock #: JTE12594J
ISSN: 0090-3973
DOI: 10.1520/JTE12594J