Accession Number:

AD0885774

Title:

Advanced Materials for Aircraft Propulsion Systems. Phase I. Investigation of Corrosion Resistant Coatings for Service at 3000 F and above.

Descriptive Note:

Final rept. 5 Jan-5 Aug 70,

Corporate Author:

BATTELLE MEMORIAL INST COLUMBUS OH COLUMBUS LABS

Personal Author(s):

• Pfeifer, S. H.
• Veeck, S. J.
• Veigel, N. D.
• Blocher, J. M., Jr
• Browning, M. F.

Report Date:

1970-08-21

Pagination or Media Count:

91.0

Abstract:

The coatings to be developed are aimed primarily at the most severe environment in a jet engine namely, turbine vane and blade components, since present NiAl coatings on these components are inadequate above 1800 F. The BCL coating-development work is based on a 3-region composite-coating concept Region 1 - an outermost corrosion-resistant barrier providing primary environmental protection, Region 2 - a self-healing reservoir, and Region 3 - a diffusion barrier between the coating and metallic substrate. Preliminary studies were limited to development of coatings that would be applicable to the protection of Ni-base and Co-base superalloys. Author

Descriptors:

• *GAS TURBINES
• CORROSION INHIBITION
• TURBINE COMPONENTS
• OXIDES
• NITRIDES
• COBALT ALLOYS

Subject Categories:

• Coatings, Colorants and Finishes
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE