The Thermomechanical Stability of Tungsten Alloys for Restart Applications

The structural behavior of tungsten and tungsten alloys in a cyclic heating environment closely resembling the thermal environment of a restartable rocket motor has been investigated in a combined laboratory and analytical study. The purpose was to achieve a better understanding of the factors affec...

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Bibliographic Details
Main Authors: King, Kenneth R, Janowski, Kenneth R, Bohn, Jack R, Ernst, Charles H, Pearson, Durk J
Format: Report
Language:English
Subjects:
CONTROLLABLE THRUST ROCKET ENGINES
DEFORMATION
ELONGATION
FEASIBILITY STUDIES
HIGH TEMPERATURE
LIFE EXPECTANCY(SERVICE LIFE)
LOADS(FORCES)
METALLOGRAPHY
MICROSTRUCTURE
PHOTOMICROGRAPHY
Properties of Metals and Alloys
RECRYSTALLIZATION
RHENIUM ALLOYS
Rocket Engines
TENSILE PROPERTIES
THERMAL SHOCK
THERMAL STABILITY
THORIUM ALLOYS
TUNGSTEN ALLOYS
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Summary:The structural behavior of tungsten and tungsten alloys in a cyclic heating environment closely resembling the thermal environment of a restartable rocket motor has been investigated in a combined laboratory and analytical study. The purpose was to achieve a better understanding of the factors affecting the deformation behavior and dimensional stability of rocket nozzle components. An important accomplishment of this program was the development and demonstration of an analytical approach capable of synthesizing the many material and environmental variables and which has potential for a wide range of laboratory and rocket hardware applications. (Author)