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- Modeling studies were conducted on low pressure plasma sprayed (LPPS) NiAl top coat applied to an advanced Cu-8(at.%)Cr-4%Nb alloy (GRCop-84) substrate using Ni as a bond coat. A thermal analysis suggested that the NiAl and Ni top and bond coats, respectively, would provide adequate thermal protection to the GRCop-84 substrate in a rocket engine operating under high heat flux conditions. Residual stress measurements were conducted at different depths from the free surface on coated and uncoated GRCop-84 specimens by x-ray diffraction. These data are compared with theoretically estimated values assessed by a finite element analysis simulating the development of these stresses as the coated substrate cools down from the plasma spraying temperature to room temperature.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 20030025290.
Symposium on Surface Engineering: In Material Science II; 2-6 Mar. 2003; San Diego, CA; United States.
- Copyright, Distribution as joint owner in the copyright.
View MARC record | catkey: 15966774