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Response of Inconel 617 superalloy to combined ground-based and STS reentry exposureInconel 617 is a nickel-based superalloy which is being considered for heat-shield applications because of its high-temperature strength, good oxidation resistance and high emittance of oxidized surfaces. While the effects of simulated reentry conditions on emittance and oxidation of Inconel 617 have been studied, the combined effects of the ground-based environment with sea salt exposure and the reentry environment have not been evaluated. Experimental results are presented to show the effects of environmental simulation including ground-based and reentry exposure on the emittance and oxidation of Inconel 617. Specimens were exposed to simulated reentry at a surface temperature of 2000 F in the Langley Research Center Hypersonic Materials Environmental Test System (HYMETS) Facility with and without alternate exposures to an atmospheric seashore environment or a laboratory sea salt environment. This paper presents emittance, mass loss, oxide chemistry, and alloy composition data for the specimens.
Document ID
19840024435
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Clark, R. K. (NASA Langley Research Center Hampton, VA, United States)
Unnam, J. (Analytical Service and Materials, Inc., Tabb Va., United States)
Date Acquired
September 4, 2013
Publication Date
August 1, 1984
Subject Category
Metallic Materials
Report/Patent Number
NASA-TM-86293
AIAA PAPER 84-1768
NAS 1.15:86293
Meeting Information
Meeting: Thermophys. Conf.
Location: Snowmass, CO
Country: United States
Start Date: June 25, 1984
End Date: June 28, 1984
Accession Number
84N32505
Funding Number(s)
PROJECT: RTOP 506-53-33-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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