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10,000-Hour Cyclic Oxidation Behavior at 982 C (1800 F) of 68 High-Temperature Co-, Fe-, and Ni-Base AlloysSixty-eight high temperature Co-, Fe-, and Ni-base alloys were tested for 10-one thousand hour cycles in static air at 982 C (1800 F). The oxidation behavior of the test samples was evaluated by specific weight change/time data, x-ray diffraction of the post-test samples, and their final appearance. The gravimetric and appearance data were combined into a single modified oxidation parameter, KB4 to rank the cyclic oxidation resistance from excellent to catastrophic. The alloys showing the 'best' resistance with no significant oxidation attack were the alumina/aluminate spinel forming Ni-base turbine alloys: U-700, NASA-VIA and B-1900; the Fe-base ferritic alloys with Al: TRW-Valve, HOS-875, NASA-18T, Thermenol and 18SR; and the Ni-base superalloy IN-702.
Document ID
19970025059
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Barrett, Charles A. (NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1997
Subject Category
Metallic Materials
Report/Patent Number
E-10598
NAS 1.15:107394
NASA-TM-107394
Accession Number
97N24711
Funding Number(s)
PROJECT: RTOP 523-21-13
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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