US2018029131A1PendingUtilityA1

Powdered Titanium Alloy Composition and Article Formed Therefrom

38
Assignee: BOEING COPriority: Jul 26, 2016Filed: Jul 26, 2016Published: Feb 1, 2018
Est. expiryJul 26, 2036(~10 yrs left)· nominal 20-yr term from priority
Inventors:Joseph A. PecinaRobert BurkettGary M. BackhausMichael S. CarrRyan J. Glamm
B22F 1/0003B22F 2003/248C22F 1/183C22C 14/00B22F 3/24B22F 2998/10B22F 3/16B22F 3/15B22F 2301/205
38
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A titanium alloy composition that includes, other than impurities, about 7.0 to about 9.0 percent by weight vanadium (V), about 3.0 to about 4.5 percent by weight aluminum (Al), about 0.8 to about 1.5 percent by weight iron (Fe), about 0.14 to about 0.22 percent by weight oxygen (O), optionally about 0.8 to about 2.4 percent by weight chromium (Cr), and the balance titanium.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A titanium alloy consisting essentially of:
 about 7.0 to about 9.0 percent by weight vanadium;   about 3.0 to about 4.5 percent by weight aluminum;   about 0.8 to about 1.5 percent by weight iron;   about 0.14 to about 0.22 percent by weight oxygen;   optionally about 0.8 to about 2.4 percent by weight chromium; and   balance titanium.   
     
     
         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 aluminum is present at about 3.5 to about 4.5 percent by weight. 
     
     
         5 . The titanium alloy of  claim 1  wherein said aluminum is present at about 3.0 to about 4.0 percent by weight. 
     
     
         6 . The titanium alloy of  claim 1  wherein said iron is present at about 0.9 to about 1.5 percent by weight. 
     
     
         7 . The titanium alloy of  claim 1  wherein said iron is present at about 0.8 to about 1.3 percent by weight. 
     
     
         8 . The titanium alloy of  claim 1  wherein said oxygen is present at about 0.15 to about 0.22 percent by weight. 
     
     
         9 . The titanium alloy of  claim 1  wherein said oxygen is present at about 0.14 to about 0.20 percent by weight. 
     
     
         10 . The titanium alloy of  claim 1  wherein said chromium is optionally present at about 1.8 to about 2.4 percent by weight. 
     
     
         11 . The titanium alloy of  claim 1  wherein:
 said vanadium is present at about 7.0 to about 8.5 percent by weight; 
 said aluminum is present at about 3.5 to about 4.5 percent by weight; 
 said iron is present at about 0.9 to about 1.5 percent by weight; and 
 said oxygen is present at about 0.15 to about 0.22 percent by weight. 
 
     
     
         12 . The titanium alloy of  claim 11  wherein said optional chromium is not present. 
     
     
         13 . The titanium alloy of  claim 1  wherein:
 said vanadium is present at about 7.5 to about 9.0 percent by weight; 
 said aluminum is present at about 3.0 to about 4.0 percent by weight; 
 said iron is present at about 0.8 to about 1.3 percent by weight; 
 said oxygen is present at about 0.14 to about 0.20 percent by weight; and 
 said chromium is present at about 0.8 to about 2.4 percent by weight. 
 
     
     
         14 . The titanium alloy of  claim 1  in powdered form. 
     
     
         15 . The titanium alloy of  claim 14  wherein said powdered form consists of a mixture of at least two different powder compositions. 
     
     
         16 . The titanium alloy of  claim 15  wherein said mixture comprises a titanium powder and a master alloy powder. 
     
     
         17 . The titanium alloy of  claim 14  wherein said powdered form consists of a plurality of powder particles, and wherein each powder particle of said plurality of powder particles has substantially the same composition. 
     
     
         18 . The titanium alloy of  claim 14  wherein said powdered form consists of a plurality of substantially spherical powder particles. 
     
     
         19 . The titanium alloy of  claim 18  wherein said plurality of substantially spherical powder particles have a substantially uniform particle size. 
     
     
         20 . An article formed from the titanium alloy of  claim 1 . 
     
     
         21 . An article formed from the titanium alloy of  claim 14 . 
     
     
         22 . A method for manufacturing an article comprising:
 compacting said powdered form titanium alloy of  claim 14  to form a shaped mass; and   sintering said shaped mass.   
     
     
         23 . The method of  claim 22  wherein said compacting comprises metal injection molding. 
     
     
         24 . The method of  claim 22  further comprising subjecting said sintered shaped mass to hot isostatic pressing. 
     
     
         25 . The method of  claim 22  further comprising solution treating and aging said sintered shaped mass. 
     
     
         26 . The titanium alloy of  claim 1  in powdered form and consisting essentially of:
 about 7.0 to about 8.5 percent by weight vanadium; 
 about 3.5 to about 4.5 percent by weight aluminum; 
 about 0.9 to about 1.5 percent by weight iron; 
 about 0.15 to about 0.22 percent by weight oxygen; and 
 balance titanium. 
 
     
     
         27 . The titanium alloy composition of  claim 26  consisting of a plurality of powder particles, and wherein each powder particle of said plurality of powder particles has substantially the same composition. 
     
     
         28 . The titanium alloy composition of  claim 26  consisting of a mixture of at least two different powder compositions. 
     
     
         29 . The titanium alloy composition of  claim 28  wherein said mixture comprises a titanium powder and a master alloy powder. 
     
     
         30 . An article formed from the titanium alloy composition of  claim 26 . 
     
     
         31 . The titanium alloy of  claim 1  in powdered form and consisting essentially of:
 about 7.5 to about 9.0 percent by weight vanadium; 
 about 3.0 to about 4.0 percent by weight aluminum; 
 about 0.8 to about 2.4 percent by weight chromium; 
 about 0.8 to about 1.3 percent by weight iron; 
 about 0.14 to about 0.20 percent by weight oxygen; and 
 balance titanium. 
 
     
     
         32 . The titanium alloy composition of  claim 31  wherein said chromium is present at about 1.8 to about 2.4 percent by weight. 
     
     
         33 . The titanium alloy composition of  claim 31  consisting of a plurality of powder particles, and wherein each powder particle of said plurality of powder particles has substantially the same composition. 
     
     
         34 . The titanium alloy composition of  claim 31  consisting of a mixture of at least two different powder compositions. 
     
     
         35 . The titanium alloy composition of  claim 34  wherein said mixture comprises a titanium powder and a master alloy powder. 
     
     
         36 . An article formed from the titanium alloy composition of  claim 31 .

Join the waitlist — get patent alerts

Track US2018029131A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.