Custom titanium alloy for 3-D printing and method of making same
A Ti-6A1-4V titanium powder alloy composition having enhanced strength resulting from the addition of one or more of the following elements without requiring an increase in oxygen content: Aluminum Iron Nitrogen Carbon The composition may also be used for Ti-6A1-4V titanium alloy starting bar stock.
1. A method of increasing the strength of Ti-6A1-4V titanium alloy powder or starting bar stock without increasing oxygen content, comprising adding to the powder or starting bar stock the following combination of elements:
Aluminum
Iron
Nitrogen
Carbon.
2. The method of claim 1 wherein the weight percent of the elements for the powder is:
Aluminum—6.3 to 6.7%
Iron—0.25 to 0.4%
Nitrogen—0.02 to 0.05%
Carbon—0.04 to 0.08%.
3. The method of claim 1 wherein the weight percent of the elements for the bar stock is:
Aluminum—6.3% to 6.7%
Iron—0.15% to 0.30%
Nitrogen—0.02% to 0.05%
Carbon—0.04% to 0.08%.