Granted Patent B2

US 12,234,539 · App. 18/483,894 · Granted Feb 25, 2025

Inventors: John V. Mantione (Indian Trail, NC); David J. Bryan (Indian Trail, NC); Matias Garcia-Avila (Matthews, NC)

Assignee: ATI PROPERTIES LLC

C22F1/183C22C14/00

Abstract

Claims (200)

1. A method of processing a titanium alloy, the method comprising:

solution treating a titanium alloy; and

aging the titanium alloy;

wherein the titanium alloy forms an intermetallic precipitate comprising zirconium, silicon, and germanium; and

wherein the titanium alloy consists of, in weight percentages based on total alloy weight:

5.5 to 6.5 aluminum;

1.5 to 2.5 tin;

1.3 to 2.3 molybdenum;

0.1 to 10.0 zirconium;

0.01 to 0.30 silicon;

0.1 to 2.0 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

2. The method of claim 1 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F.; and

aging the titanium alloy at 1025° F. to 1125° F.

3. The method of claim 1 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F. for 4 hours; and

aging the titanium alloy at 1025° F. to 1125° F. for 8 hours.

4. The method of claim 1 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F.;

cooling the titanium alloy to ambient temperature;

aging the titanium alloy at 1025° F. to 1125° F.; and

air cooling the titanium alloy.

5. The method of claim 1 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F. for 4 hours;

cooling the titanium alloy to ambient temperature at a rate depending on a cross-sectional thickness of the titanium alloy;

aging the titanium alloy at 1025° F. to 1125° F. for 8 hours; and

air cooling the titanium alloy.

6. The method of claim 1 , wherein the titanium alloy consists of, in weight percentages based on total alloy weight:

5.5 to 6.5 aluminum;

1.7 to 2.1 tin;

1.7 to 2.1 molybdenum;

3.4 to 4.4 zirconium;

0.03 to 0.11 silicon;

0.1 to 0.4 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

7. The method of claim 1 , wherein the titanium alloy consists of, in weight percentages based on total alloy weight:

5.9 to 6.0 aluminum;

1.9 to 2.0 tin;

1.8 to 1.9 molybdenum;

3.5 to 4.3 zirconium;

0.06 to 0.11 silicon;

0.1 to 0.4 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

8. The method of claim 1 , wherein the titanium alloy exhibits a steady-state creep rate less than 7.97×10 −4 (24 hrs) −1 at a temperature of at least 475° C. under a load of 52 ksi.

9. The method of claim 1 , wherein the titanium alloy exhibits an ultimate tensile strength of at least 130 ksi at 482° C.

10. A method of processing a titanium alloy, the method comprising:

solution treating a titanium alloy; and

aging the titanium alloy;

wherein the titanium alloy consists of, in weight percentages based on total alloy weight:

5.5 to 6.5 aluminum;

1.5 to 2.5 tin;

1.3 to 2.3 molybdenum;

0.1 to 10.0 zirconium;

0.01 to 0.30 silicon;

0.1 to 2.0 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

11. The method of claim 10 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F.; and

aging the titanium alloy at 1025° F. to 1125° F.

12. The method of claim 10 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F. for 4 hours; and

aging the titanium alloy at 1025° F. to 1125° F. for 8 hours.

13. The method of claim 10 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F.;

cooling the titanium alloy to ambient temperature;

aging the titanium alloy at 1025° F. to 1125° F.; and

air cooling the titanium alloy.

14. The method of claim 10 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F. for 4 hours;

cooling the titanium alloy to ambient temperature at a rate depending on a cross-sectional thickness of the titanium alloy;

aging the titanium alloy at 1025° F. to 1125° F. for 8 hours; and

air cooling the titanium alloy.

15. The method of claim 10 , wherein the titanium alloy exhibits a steady-state creep rate less than 7.97×10 −4 (24 hrs) −1 at a temperature of at least 475° C. under a load of 52 ksi.

16. The method of claim 10 , wherein the titanium alloy exhibits an ultimate tensile strength of at least 130 ksi at 482° C.

17. The method of claim 10 , wherein the titanium alloy consists of, in weight percentages based on total alloy weight:

5.5 to 6.5 aluminum;

1.7 to 2.1 tin;

1.7 to 2.1 molybdenum;

3.4 to 4.4 zirconium;

0.03 to 0.11 silicon;

0.1 to 0.4 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

18. The method of claim 10 , wherein the titanium alloy consists of, in weight percentages based on total alloy weight:

5.9 to 6.0 aluminum;

1.9 to 2.0 tin;

1.8 to 1.9 molybdenum;

3.5 to 4.3 zirconium;

0.06 to 0.11 silicon;

0.1 to 0.4 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

19. A method of processing a titanium alloy, the method comprising:

solution treating a titanium alloy; and

aging the titanium alloy;

wherein the titanium alloy forms an intermetallic precipitate comprising zirconium, silicon, and germanium; and

wherein the titanium alloy consists essentially of, in weight percentages based on total alloy weight:

5.5 to 6.5 aluminum;

1.5 to 2.5 tin;

1.3 to 2.3 molybdenum;

0.1 to 10.0 zirconium;

0.01 to 0.30 silicon;

0.1 to 2.0 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

20. The method of claim 19 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F.; and

aging the titanium alloy at 1025° F. to 1125° F.

21. The method of claim 19 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F. for 4 hours; and

aging the titanium alloy at 1025° F. to 1125° F. for 8 hours.

22. The method of claim 19 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F.;

cooling the titanium alloy to ambient temperature;

aging the titanium alloy at 1025° F. to 1125° F.; and

air cooling the titanium alloy.

23. The method of claim 19 , comprising:

solution treating the titanium alloy at 1780° F. to 1800° F. for 4 hours;

cooling the titanium alloy to ambient temperature at a rate depending on a cross-sectional thickness of the titanium alloy;

aging the titanium alloy at 1025° F. to 1125° F. for 8 hours; and

air cooling the titanium alloy.

24. The method of claim 19 , wherein the titanium alloy consists essentially of, in weight percentages based on total alloy weight:

5.5 to 6.5 aluminum;

1.7 to 2.1 tin;

1.7 to 2.1 molybdenum;

3.4 to 4.4 zirconium;

0.03 to 0.11 silicon;

0.1 to 0.4 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

25. The method of claim 19 , wherein the titanium alloy consists essentially of, in weight percentages based on total alloy weight:

5.9 to 6.0 aluminum;

1.9 to 2.0 tin;

1.8 to 1.9 molybdenum;

3.5 to 4.3 zirconium;

0.06 to 0.11 silicon;

0.1 to 0.4 germanium;

0 to 0.15 oxygen;

0 to 0.30 iron;

0 to 0.05 nitrogen;

0 to 0.05 carbon;

0 to 0.015 hydrogen;

0 to 0.1 of each of niobium, tungsten, hafnium, nickel, gallium, antimony, vanadium, tantalum, manganese, cobalt, and copper;

titanium; and

impurities.

26. The method of claim 19 , wherein the titanium alloy exhibits a steady-state creep rate less than 7.97×10 −4 (24 hrs) −1 at a temperature of at least 475° C. under a load of 52 ksi.

27. The method of claim 19 , wherein the titanium alloy exhibits an ultimate tensile strength of at least 130 ksi at 482° C.

Assignments (1)

Continuity (3)

References Cited (108)