Homogeneous titanium tungsten alloys produced by powder metal technology
Titanium-tungsten alloys are described comprising tungsten ranging from about 9% to about 20% by weight, and titanium ranging from about 91% to about 80% by weight, exhibiting a yield strength of at least 120,000 psi, and a ductility of at least 20% elongation. Methods of making the alloy, and products made with the alloys are also disclosed herein.
1. An alloy consisting of tungsten and titanium, wherein the proportions of tungsten and titanium range from about 9%:91% by weight to about 20%:80% by weight, and elemental tungsten powder and elemental titanium powder are processed to provide the alloy with a yield strength of at least 120,000 psi and a ductility of at least 20% elongation.
2. The alloy of claim 1 , wherein the tungsten is present in an amount of about 15% by weight, and the titanium is present in an amount of about 85% by weight, and the alloy has a yield strength of 124,000 psi and a ductility of 26% elongation.
3. The alloy of claim 1 , wherein the mixture is heated at about 1450° F. for about 4 hours.
4. The alloy of claim 1 , wherein the mixture is consolidated to at least 95% density by at least one of sintering, pressing, and hot isostatic pressing.
5. The alloy of claim 1 , wherein the mixture is hot-worked by at least one of forging, rolling, extruding, and spin forming.
6. The alloy of claim 1 , wherein processing includes at least of one of blending, compacting, consolidating, hot-working and heat-treating.
7. The alloy of claim 1 , wherein processing includes blending, compacting, consolidating, hot-working, and heat-treating.
8. A binary titanium-tungsten alloy of tungsten ranging from about 9% to about 20% by weight of tungsten, and titanium ranging from about 91% to about 80% by weight, wherein said alloy exhibits a yield strength of at least 120,000 psi, and a ductility of at least 20% elongation.
9. The alloy of claim 8 , wherein the mixture is heated at about 1450° F. for about 4 hours.
10. The alloy of claim 8 , wherein the mixture is consolidated to at least 95% density by at least one of sintering, pressing, and hot isostatic pressing.
11. The alloy of claim 8 , wherein the mixture is hot-worked by at least one of forging, rolling, extruding, and spin forming.
12. The alloy of claim 8 , wherein processing includes at least of one of blending, compacting, consolidating, hot-working and heat-treating.
13. The alloy of claim 8 , wherein processing includes blending, compacting, consolidating, hot-working, and heat-treating.