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Thermal-stress fatigue behavior of twenty-six superalloysThe comparative thermal-stress fatigue resistances of 26 nickeland cobalt-base alloys were determined by fluidized bed tests. Cycles to cracking differed by almost three orders of magnitude for these materials, with directional solidification and surface protection showing definite benefit. The alloy-coating combination with the highest thermal-stress fatigue resistance was directionally solidified NASA TAZ-8A with an RT-SP coating. Its oxidation resistance was also excellent, showing approximately a 1/2 percent weight loss after 14,000 fluidized bed cycles.
Document ID
19770047007
Document Type
Conference Proceedings
Authors
Bizon, P. T. (NASA Lewis Research Center Cleveland, Ohio, United States)
Spera, D. A. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1976
Subject Category
METALLIC MATERIALS
Meeting Information
Symposium on Thermal fatigue of materials and components(New Orleans, LA)
Distribution Limits
Public
Copyright
Other