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High temperature constitutive and crack initiation modeling of coated single crystal superalloysThe purpose of this program is to develop life prediction models for anisotropic materials used in gas turbine airfoils. In the base portion of the program, two coated single crystal alloys are being tested. They are PWA 286 overlay coated and PWA 273 aluminide coated PWA 1480 and PWA 286 overlay coated Alloy 185. Viscoplastic constitutive models for these materials are also being developed to predict the cyclic stress-strain histories required for life prediction of the lab specimens and actual airfoil designs.
Document ID
19890007963
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Meyer, Thomas G. (Pratt and Whitney Aircraft East Hartford, CT, United States)
Nissley, David M. (Pratt and Whitney Aircraft East Hartford, CT, United States)
Swanson, Gustav A. (Pratt and Whitney Aircraft East Hartford, CT, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1987
Publication Information
Publication: NASA, Lewis Research Center, Turbine Engine Hot Section Technology, 1987
Subject Category
Nonmetallic Materials
Accession Number
89N17334
Funding Number(s)
CONTRACT_GRANT: NAS3-23939
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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