An alpha-beta titanium alloy comprises, in weight percentages: an aluminum equivalency in the range of 2.0 to 10.0; a molybdenum equivalency in the range of 0 to 20.0; 0.3 to 5.0 cobalt; and titanium. In certain embodiments, the alpha-beta titanium alloy exhibits a cold working reduction ductility l
An alpha-beta titanium alloy comprises, in weight percentages: an aluminum equivalency in the range of 2.0 to 10.0; a molybdenum equivalency in the range of 0 to 20.0; 0.3 to 5.0 cobalt; and titanium. In certain embodiments, the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 25%, a yield strength of at least 130 KSI (896.3 MPa), and a percent elongation of at least 10%. A method of forming an article comprising the cobalt-containing alpha-beta titanium alloy comprises cold working the cobalt-containing alpha-beta titanium alloy to at least a 25 percent reduction in cross-sectional area. The cobalt-containing alpha-beta titanium alloy does not exhibit substantial cracking during cold working.
대표청구항▼
1. An alpha-beta titanium alloy comprising, in weight percentages: at least 2.1 vanadium;about 0.24 to 0.5 oxygen;an aluminum equivalency in the range of 2.0 to 10.0;a molybdenum equivalency in the range of 2.0 to 20.0;0.3 to 5.0 cobalt;titanium; andincidental impurities. 2. The alpha-beta titanium
1. An alpha-beta titanium alloy comprising, in weight percentages: at least 2.1 vanadium;about 0.24 to 0.5 oxygen;an aluminum equivalency in the range of 2.0 to 10.0;a molybdenum equivalency in the range of 2.0 to 20.0;0.3 to 5.0 cobalt;titanium; andincidental impurities. 2. The alpha-beta titanium alloy according to claim 1, wherein the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 25%. 3. The alpha-beta titanium alloy according to claim 1, wherein the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 35%. 4. The alpha-beta titanium alloy according to claim 1, wherein the alpha-beta titanium alloy exhibits a yield strength of at least 130 KSI (896.3 MPa) and a percent elongation of at least 10%. 5. The alpha-beta titanium alloy according to claim 1, further comprising greater than 0 up to 0.3 total weight percent of one or more of cerium, praseodymium, neodymium, samarium, gadolinium, holmium, erbium, thulium, yttrium, scandium, beryllium, and boron. 6. The alpha-beta titanium alloy according to claim 5, wherein the molybdenum equivalency is in the range of 2.0 to 10. 7. The alpha-beta titanium alloy according to claim 1, further comprising greater than 0 up to 0.5 total weight percent of one or more of gold, silver, palladium, platinum, nickel, and iridium. 8. The alpha-beta titanium alloy according to claim 7, wherein the aluminum equivalency is in the range of 2.0 to 6.0 and the molybdenum equivalency is in the range of 2.0 to 10. 9. The alpha-beta titanium alloy according to claim 5, further comprising greater than 0 up to 0.5 total weight percent of one or more of gold, silver, palladium, platinum, nickel, and iridium. 10. The alpha-beta titanium alloy according to claim 1, further comprising one or more of: greater than 0 to 6 tin;greater than 0 to 0.6 silicon; andgreater than 0 to 10 zirconium. 11. An alpha-beta titanium alloy comprising, in weight percentages: 2.0 to 7.0 aluminum;at least 2.1 vanadium;a molybdenum equivalency in the range of 2.0 to 5.0;0.3 to 4.0 cobalt;about 0.24 to 0.5 oxygen;up to 0.25 nitrogen;up to 0.3 carbon;up to 0.4 of incidental impurities; andtitanium. 12. The alpha-beta titanium alloy according to claim 11, further comprising one or more of: greater than 0 to 6 tin;greater than 0 to 0.6 silicon;greater than 0 to 10 zirconium;greater than 0 to 0.3 palladium; andgreater than 0 to 0.5 boron. 13. The alpha-beta titanium alloy according to claim 11, further comprising greater than 0 up to 0.3 total weight percent of one or more of cerium, praseodymium, neodymium, samarium, gadolinium, holmium, erbium, thulium, yttrium, scandium, beryllium, and boron. 14. The alpha-beta titanium alloy according to claim 11, further comprising greater than 0 up to 0.5 total weight percent of one or more of gold, silver, palladium, platinum, nickel, and iridium. 15. The alpha-beta titanium alloy according to claim 11, wherein the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 25%. 16. The alpha-beta titanium alloy according to claim 11, wherein the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 35%. 17. The alpha-beta titanium alloy according to claim 11, wherein the alpha-beta titanium alloy exhibits a yield strength of at least 130 KSI (896.3 MPa) and a percent elongation of at least 10%. 18. An alpha-beta titanium alloy comprising, in weight percentages: an aluminum equivalency in the range of 2.0 to 10.0;a molybdenum equivalency in the range of 2.0 to 5.0;at least 2.1 vanadium;0.3 to 5.0 cobalt;titanium; andincidental impurities; andwherein the alpha-beta titanium alloy comprises no more than an incidental concentration of molybdenum. 19. The alpha-beta titanium alloy according to claim 18, wherein the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 25%. 20. The alpha-beta titanium alloy according to claim 18, wherein the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 35%. 21. The alpha-beta titanium alloy according to claim 18, wherein the alpha-beta titanium alloy exhibits a yield strength of at least 130 KSI (896.3 MPa) and a percent elongation of at least 10%. 22. The alpha-beta titanium alloy according to claim 18, further comprising greater than 0 up to 0.3 total weight percent of one or more of cerium, praseodymium, neodymium, samarium, gadolinium, holmium, erbium, thulium, yttrium, scandium, beryllium, and boron. 23. The alpha-beta titanium alloy according to claim 22, further comprising greater than 0 up to 0.5 total weight percent of one or more of gold, silver, palladium, platinum, nickel, and iridium. 24. The alpha-beta titanium alloy according to claim 18, further comprising greater than 0 up to 0.5 total weight percent of one or more of gold, silver, palladium, platinum, nickel, and iridium. 25. The alpha-beta titanium alloy according to claim 24, wherein the aluminum equivalency is in the range of 2.0 to 6.0. 26. The alpha-beta titanium alloy according to claim 18, further comprising one or more of: greater than 0 to 6 tin;greater than 0 to 0.6 silicon; andgreater than 0 to 10 zirconium. 27. An alpha-beta titanium alloy comprising, in weight percentages: 2.0 to 7.0 aluminum;at least 2.1 vanadium;a molybdenum equivalency in the range of 2.0 to 5.0;0.3 to 4.0 cobalt;up to 0.5 oxygen;up to 0.25 nitrogen;up to 0.3 carbon;up to 0.4 of incidental impurities; andtitanium; andwherein the alpha-beta titanium alloy comprises no more than an incidental concentration of molybdenum. 28. The alpha-beta titanium alloy according to claim 27, further comprising one or more of: greater than 0 to 6 tin;greater than 0 to 0.6 silicon;greater than 0 to 10 zirconium;greater than 0 to 0.3 palladium; andgreater than 0 to 0.5 boron. 29. The alpha-beta titanium alloy according to claim 27, further comprising greater than 0 up to 0.3 total weight percent of one or more of cerium, praseodymium, neodymium, samarium, gadolinium, holmium, erbium, thulium, yttrium, scandium, beryllium, and boron. 30. The alpha-beta titanium alloy according to claim 27, further comprising greater than 0 up to 0.5 total weight percent of one or more of gold, silver, palladium, platinum, nickel, and iridium. 31. The alpha-beta titanium alloy according to claim 27, wherein the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 25%. 32. The alpha-beta titanium alloy according to claim 27, wherein the alpha-beta titanium alloy exhibits a cold working reduction ductility limit of at least 35%. 33. The alpha-beta titanium alloy according to claim 27, wherein the alpha-beta titanium alloy exhibits a yield strength of at least 130 KSI (896.3 MPa) and a percent elongation of at least 10%.
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