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Castable hot corrosion resistant alloySome 10 wt percent nickel is added to an Fe-base alloy which has a ferrite microstructure to improve the high temperature castability and crack resistance while about 0.2 wt percent zirconium is added for improved high temperatur cyclic oxidation and corrosion resistance. The basic material is a high temperature FeCrAl heater alloy, and the addition provides a material suitable for burner rig nozzles.
Document ID
19890004932
Acquisition Source
Glenn Research Center
Document Type
Other - Patent
Authors
Charles A. Barrett (Glenn Research Center Cleveland, Ohio, United States)
William H. Holt (Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
August 14, 2013
Publication Date
October 25, 1988
Subject Category
Metallic Materials
Accession Number
89N14303
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LEW-14134-2|US-PATENT-4,780,276
Patent Application
US-PATENT-APPL-SN-108331

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