Titanium alloy
AssigneeCristal Metals Inc.
InventorsLance E. Jacobsen, Adam John Benish
Life of this patent
Estimating the term…
Abstract
A titanium base alloy powder having lesser amounts of aluminum and vanadium with an alkali or alkaline earth metal being present in an amount of less than about 200 ppm. The alloy powder is neither spherical nor angular and flake shaped. 6/4 alloy is specifically disclosed having a packing fraction or tap density between 4 and 11%, as is a method for making the various alloys.
Claims35
A titanium base alloy powder comprising:
- pre-alloy particles, a majority of the pre-alloy particles having a composition of at least 50% by weight of titanium, 5.38% or more by weight of aluminum, 3.45% or more by weight of vanadium, and less than about 200 ppm alkali or alkaline earth metal, wherein the total amount of aluminum and vanadium is less than about 20% by weight, and wherein
- the titanium base alloy powder has a tap density in a range of from about 4% to about 11% and a Brunauer, Emmett, and Teller (BET) specific surface area of at least about 3 square meters per gram, and meets ASTM B265 grade 5 chemical specifications.
A titanium base alloy powder comprising:
- pre-alloy particles, a majority of the pre-alloy particles having 50% or more by weight of titanium, about 5.38% to 6.95% by weight of aluminum and about 3% to about 5% by weight of vanadium, and wherein
- the titanium base alloy powder has an alkali or alkaline earth metal content of less than about 200 ppm, a tap density in a range of from about 4% to about 11%, and a Brunauer, Emmett, and Teller (BET) specific surface area of at least about 3 square meters per gram, and meets ASTM B265 grade 5 chemical specifications.
A titanium base alloy powder comprising pre-alloy particles, each pre-alloy particle having:
- 50% or more by weight of titanium, about 5.38% or more by weight of aluminum and about 3.45% or more by weight of vanadium, wherein the total amount of aluminum and vanadium is less than about 20% by weight, and an alkali or alkaline earth metal present in the alloy in an amount less than about 200 ppm, and wherein
- the titanium base alloy powder has a tap density in a range of from about 4% to about 11% and a Brunauer, Emmett, and Teller (BET) specific surface area of at least about 3 square meters per gram, and meets ASTM B265 grade 5 chemical specifications.
A titanium base alloy powder having:
- pre-alloy particles, a majority of the pre-alloy particles having a composition of 50% or more by weight of titanium, 5.38% to 6.95% by weight of aluminum and 3% to 5% by weight of vanadium, and an alkali or an alkaline earth metal content of less than about 200 ppm, the pre-alloy particles made by the subsurface reduction of a chloride vapor with a molten alkali metal or a molten alkaline earth metal, and wherein the titanium base alloy powder has a tap density in a range of from about 4% to about 11%, has a Brunauer, Emmett, and Teller (BET) specific surface area of at least about 3 square meters per gram, and meets ASTM B265 grade 5 chemical specifications.
A titanium base alloy powder comprising:
- pre-alloy particles, each pre-alloy particle having 50% or more by weight of titanium, about 5.38% to 6.95% by weight of aluminum and about 3% to about 5% by weight of vanadium, and an alkali or alkaline earth metal present in an amount less than about 100 ppm, the pre-alloy particles agglomerated substantially as seen in FIGS. 10-12, and wherein the titanium base alloy powder has a tap density in a range of from about 4% to about 11%, has a Brunauer, Emmett, and Teller (BET) specific surface area of at least about 3 square meters per gram, and meets ASTM B265 grade 5 chemical specifications.
Dependencies are inferred from the claim text.