Development of a Stable-Beta Titanium Alloy
Abstract
Evaluation of ageable beta alloys Ti-17V-2Fe-2Co-3Al, Ti-17V-7.5Co-3A1 and Ti-8Mo-8V-5Co-3Al continued with room and elevated temperature smooth and notched tensile tests, creep stability, oxidation and stress-corrosion tests. Ti-17V-7.5Co-3Al aged more rapidly than Ti-8Mo-8V-5Co-3Al; after aging for 8 hours at 900F, Ti-17V-7.5Co-3Al was only 158,000 psi. In smooth and notched tensile tests at 600F, Ti-17V-7.5Co-3Al displayed more strength than Ti-8Mo-8V-5Co-3Al because of its faster aging response in a given time. However, in creep stability tests and oxidation tests, Ti-8Mo8V-5Co-3Al was the better alloy. Stress corrosion tests performed upon all five ageable beta alloys developed in this project showed that, in the annealed condition, Ti-8Mo-8V-2Fe-3Al was the most resistant to stress corrosion and Ti-17V-7.5Co-3Al and Ti-8Mo- 8V-5Co-3Al the most susceptible. Keywords: Titanium alloys; Vanadium; Cobalt; Aluminum; Molybdenum; Iron.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1964
- Accession Number
- ADA954841
Entities
People
- D. B. Hunter