Development of a 900 F Titanium Alloy.
Abstract
The goal was to achieve an improved combination of elevated temperature properties, particularly high elevated temperature tensile strength. The alloy Ti-5Al-5Sn-2Zr-4Mo-0.25Si comes close to meeting the objectives of the contract. This alloy has the capability of achieving 120 ksi 900 F yield strength and high creep strength. At a creep exposure of 1000 F and 55 ksi for 96 hours the alloy has a permanent deformation of -0.23 percent. It also shows good stability as determined by post-creep ductility. Additional thermo-mechanical treatments show promise for improving the high-temperature properties further. Various alloying elements were studied in the investigation. (Author Modified Abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1973
- Accession Number
- AD0759215
Entities
People
- George S. Hall
- Howard B. Bomberger
- Stanley R. Seagle