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Characterization of Cold Sprayed CuCrAl Coated GRCop-84 Substrates for Reusable Launch VehiclesAn advanced Cu-8(at.%)Cr-4%Nb alloy developed at NASA's Glenn Research Center, and designated as GRCop-84, is currently being considered for use as combustor liners and nozzles in NASA's future generations of reusable launch vehicles (RLVs). Despite the fact that this alloy has superior mechanical and oxidation properties compared to many commercially available copper alloys, it is felt that its high temperature and environmental resistance capabilities can be further enhanced with the development and use of suitable coatings. Several coatings and processes are currently being evaluated for their suitability and future down selection. A newly developed CuCrAl has shown excellent oxidation resistance compared to current generation Cu-Cr coating alloys. Cold spray technology for depositing the CuCrAl coating on a GRCop-84 substrate is currently being developed under NASA's Next Generation Launch Technology (NGLT) Propulsion Research and Technology (PR&T) project. The microstructures, mechanical and thermophysical properties of overlay coated GRCop-84 substrates are discussed.
Document ID
20050201797
Acquisition Source
Glenn Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Raj, S . V.
(NASA Glenn Research Center Cleveland, OH, United States)
Barrett, C. A.
(NASA Glenn Research Center Cleveland, OH, United States)
Lerch, B. A.
(NASA Glenn Research Center Cleveland, OH, United States)
Karthikeyan, J.
Ghosn, L. J.
(Ohio Aerospace Inst. Cleveland, OH, United States)
Haynes, J.
(Pratt and Whitney Space Propulsion West Palm Beach, FL, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Subject Category
Metals And Metallic Materials
Meeting Information
Meeting: Cold Spray 2004
Location: Akron, OH
Country: United States
Start Date: September 27, 2004
End Date: September 28, 2004
Distribution Limits
Public
Copyright
Other

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