Tungsten Reinforced Oxidation Resistant Columbium Alloys.
Abstract
The approach used in this investigation was to combine weak but oxidation resistant matrices with high-strength filaments to produce a composite with oxidation resistance under loads at temperatures above 2000F. These operating temperature and strength goals are needed for gas turbine engines, but are beyond the range of nickel- and cobalt-base superalloys which have maximum temperature capabilities of about 1900F. Ideally, the composite material could be used uncoated but could also serve as a fail-safe material when coated. During the period covered by this report (the second year) characterization of the mechanical properties, oxidation resistance and filament-matrix compatibility of the model system was continued. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1970
- Accession Number
- AD0717969
Entities
People
- A. G. Metcalfe
- M. J. Klein
- R. B. Domes