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US 6,786,985 B2Granted
Alpha-beta Ti-Ai-V-Mo-Fe alloy
AssigneeTitanium Metals Corporation
InventorsYoji Kosaka, Stephen P. Fox, John C. Fanning
Life of this patent
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Abstract
High strength alpha-beta alloy comprising essentially Al: 4.5-5.5%, V: 3.0-5.0%, Mo: 0.3-1.8%, Fe: 0.2-1.2%, oxygen 0.12-0.25% Ti: balance. All other incidental elements should be less than 0.1% for each element and less than 0.5% in total. The alloy possesses improved machinability and ballistic performance compared to Ti-6Al-4V.
Claims5
An alpha-beta titanium-base alloy comprising in weight percent:
- 4.5 to 5.5 aluminum;
- 3.0 to 5.0 vanadium;
- 0.3 to 1.8 molybdenum;
- 0.2 to 0.8 iron;
- 0.12 to 0.25 oxygen:
- and
- balance titanium and incidental elements and impurities, with said incidental elements each being less than 0.1 and in total less than 0.5.
4 more elements
An alpha-beta titanium-base alloy comprising, in weight percent:
- 4.5 to 5.5 aluminum;
- 3.7 to 4.7 vanadium;
- 0.3 to 1.8 molybdenum;
- 0.2 to 0.8 iron;
- 0.12 and 0.25 oxygen;
- and
- balance titanium and incidental elements and impurities, with said incidental elements each being less than 0.1 and in total less than 0.5.
4 more elements
Dependencies are inferred from the claim text.