CUSTOM TITANIUM ALLOY, TI-64, 23+
This disclosure relates to a new alloy and methods of making same. The new alloy is an enhanced strength Ti-6Al-4V Grade 23+ titanium alloy having the following composition by weight percent: Aluminum —6.0 wt % to 6.5 wt %; Vanadium —4.0 wt % to 4.5 wt %; Iron —0.15 wt % to 0.25 wt %; Oxygen —0.00 wt % to 0.10 wt %; Nitrogen —0.01 wt % to 0.03 wt %; Carbon —0.04 wt % to 0.08 wt %; Hydrogen —0.0000 wt % to 0.0125 wt %; Other Elements, each —0.0 wt % to 0.1 wt %; Other Elements, total —0.0 wt % to 0.4 wt %; and Titanium—Balance.
1 . An enhanced strength Ti-6Al-4V Grade 23+ titanium alloy having the following composition by weight percent:
Aluminum—6.0 wt % to 6.5 wt %;
Vanadium—4.0 wt % to 4.5 wt %;
Iron—0.15 wt % to 0.25 wt %;
Oxygen—0.00 wt % to 0.10 wt %;
Nitrogen—0.01 wt % to 0.03 wt %;
Carbon—0.04 wt % to 0.08 wt %;
Hydrogen—0.0000 wt % to 0.0125 wt %;
Other Elements, each—0.0 wt % to 0.1 wt %;
Other Elements, total—0.0 wt % to 0.4 wt %; and
Titanium—Balance.
2 . The enhanced strength Ti-6Al-4V Grade 23+ titanium alloy of claim 1 having
0.00 wt % to 0.06 wt % Oxygen;
0.01 wt % to 0.10 wt % Oxygen; or
0.01 wt % to 0.06 wt % Oxygen.
3 . The enhanced strength Ti-6Al-4V Grade 23+ titanium alloy of claim 1 which is a powder alloy.
4 . The enhanced strength Ti-6Al-4V Grade 23+ titanium alloy of claim 1 which is a starting bar stock.
5 . An enhanced strength Ti-6Al-4V Grade 23+ alloy composition having less than or equal to 0.10 wt % Oxygen, having the same or greater strength as a Ti-6Al-4V Grade 23 alloy, wherein the Ti-6Al-4V Grade 23+ alloy results from controlling the following combination of elements in the Ti-6Al-4V Grade 23 alloy:
Aluminum;
Iron;
Nitrogen; and
Carbon.
6 . An enhanced strength Ti-6Al-4V Grade 23+ alloy composition of claim 5 , wherein the weight percent of the elements is:
Aluminum—6.0 wt % to 6.5 wt %;
Iron—0.15 wt % to 0.25 wt %;
Nitrogen—0.01 wt % to 0.03 wt %; and
Carbon—0.04 wt % to 0.08 wt %.
7 . The enhanced strength Ti-6Al-4V Grade 23+ titanium alloy of claim 5 which is a powder alloy.
8 . The enhanced strength Ti-6Al-4V Grade 23+ titanium alloy of claim 5 which is a starting bar stock.
9 . The enhanced strength Ti-6Al-4V Grade 23+ titanium alloy of claim 5 having
0.00 wt % to 0.06 wt % Oxygen;
0.01 wt % to 0.10 wt % Oxygen; or
0.01 wt % to 0.06 wt % Oxygen.
10 . A method of increasing the strength or reducing the Oxygen content of Ti-6Al-4V Grade 23 titanium alloy to produce Ti-6Al-4V Grade 23+ titanium alloy, the method comprising adjusting the following combination of elements in the Ti-6Al-4V Grade 23 alloy:
Aluminum;
Iron;
Nitrogen; and
Carbon.
11 . The method of claim 10 wherein the Ti-6Al-4V Grade 23+ titanium alloy has the following composition by weight percent:
Aluminum—6.0 wt % to 6.5 wt %;
Vanadium—4.0 wt % to 4.5 wt %;
Iron—0.15 wt % to 0.25 wt %;
Oxygen—0.00 wt % to 0.10 wt %;
Nitrogen—0.01 wt % to 0.03 wt %;
Carbon—0.04 wt % to 0.08 wt %;
Hydrogen—0.0000 wt % to 0.0125 wt %;
Other Elements, each—0.0 wt % to 0.1 wt %;
Other Elements, total—0.0 wt % to 0.4 wt %; and
Titanium—Balance.
12 . The method of claim 10 further comprising a step of adjusting the composition of Ti-6Al-4V Grade 23 alloy to have
0.00 wt % to 0.06 wt % Oxygen;
0.01 wt % to 0.10 wt % Oxygen; or
0.01 wt % to 0.06 wt % Oxygen.
13 . The method of claim 10 wherein the method reduces the Oxygen content of Ti-6Al-4V Grade 23 titanium alloy to produce Ti-6Al-4V Grade 23+ titanium alloy and wherein the Ti-6Al-4V Grade 23+ titanium alloy has the same strength as the Ti-6Al-4V Grade 23 titanium alloy.
14 . The method of claim 10 wherein the method increases the strength of Ti-6Al-4V Grade 23 titanium alloy to produce Ti-6Al-4V Grade 23+ titanium alloy and wherein the Ti-6Al-4V Grade 23+ titanium alloy is stronger but has the same or less Oxygen wt % than the Ti-6Al-4V Grade 23 titanium alloy.
15 . The method of claim 10 wherein the Ti-6Al-4V Grade 23+ titanium alloy is a powder alloy.
16 . The method of claim 10 wherein the Ti-6Al-4V Grade 23+ titanium alloy is a starting bar stock.