US2022112578A1PendingUtilityA1

Powdered titanium alloy composition and article formed therefrom

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Assignee: BOEING COPriority: Jul 26, 2016Filed: Aug 25, 2021Published: Apr 14, 2022
Est. expiryJul 26, 2036(~10 yrs left)· nominal 20-yr term from priority
Inventors:Joe PecinaRobert BurkettGary M. Backhaus
C22F 1/183B22F 3/26C22C 14/00B22F 9/082B22F 3/12B22F 3/15B22F 2301/205Y02P10/25
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Claims

Abstract

A titanium alloy consisting of about 7.0 to about 9.0 percent by weight vanadium, about 4.0 to about 4.5 percent by weight aluminum, about 0.9 to about 1.5 percent by weight iron, optionally, oxygen, and the balance being titanium and impurities.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A titanium alloy consisting of:
 about 7.0 to about 9.0 percent by weight vanadium;   about 4.0 to about 4.5 percent by weight aluminum;   about 0.9 to about 1.5 percent by weight iron;   optionally, oxygen; and   the balance being titanium and impurities.   
     
     
         2 . The titanium alloy of  claim 1  wherein said vanadium is present at about 7.0 to about 8.5 percent by weight. 
     
     
         3 . The titanium alloy of  claim 1  wherein said vanadium is present at about 7.5 to about 9.0 percent by weight. 
     
     
         4 . The titanium alloy of  claim 1  wherein said vanadium is present at about 8.0 to about 9.0 percent by weight. 
     
     
         5 . The titanium alloy of  claim 1  wherein said iron is present at about 0.9 to about 1.3 percent by weight. 
     
     
         6 . The titanium alloy of  claim 1  wherein said iron is present at about 0.9 to about 1.2 percent by weight. 
     
     
         7 . The titanium alloy of  claim 1  wherein said iron is present at about 1.0 to about 1.2 percent by weight. 
     
     
         8 . The titanium alloy of  claim 1  wherein said oxygen is present at a concentration of at most about 0.12 percent by weight. 
     
     
         9 . The titanium alloy of  claim 1  wherein said oxygen is present at a concentration of at most about 0.14 percent by weight. 
     
     
         10 . The titanium alloy of  claim 1  wherein said oxygen is present at a concentration of at most about 0.18 percent by weight. 
     
     
         11 . The titanium alloy of  claim 1  wherein said oxygen is present at a concentration of at most about 0.20 percent by weight. 
     
     
         12 . The titanium alloy of  claim 1  wherein said oxygen is present at a concentration of at most about 0.22 percent by weight. 
     
     
         13 . The titanium alloy of  claim 1  in the form of a powder. 
     
     
         14 . The titanium alloy of  claim 13  wherein the powder that has been compressed into a solid mass. 
     
     
         15 . The titanium alloy of  claim 13  wherein the powder is a mixture of at least two distinct powder compositions. 
     
     
         16 . The titanium alloy of  claim 13  wherein the powder is a single powder component, wherein each powder particle of the single powder component has substantially the same composition. 
     
     
         17 . A method for using the powder of  claim 13 , comprising manufacturing an aircraft component from the powder. 
     
     
         18 . The titanium alloy of  claim 1  wherein a consolidated powder article formed from the titanium alloy exhibits an ultimate tensile strength (ASTM-E8) of at least 130 ksi. 
     
     
         19 . The titanium alloy of  claim 1  wherein a consolidated powder article formed from the titanium alloy exhibits an elongation (ASTM-E8) of at least 10 percent. 
     
     
         20 . The titanium alloy of  claim 1  wherein a consolidated powder article formed from the titanium alloy exhibits a fatigue limit of at least 95 ksi.

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