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Welding of gamma titanium aluminide alloysAn article made of a gamma titanium aluminide alloy is welded, as for example in the weld repair of surface cracks, by removing foreign matter from the area to be welded, first stress relieving the article, cooling the entire article to a welding temperature of from about 1000.degree. F. to about 1400.degree. F., welding a preselected region in an inert atmosphere at the welding temperature, and second stress relieving the article. Welding is preferably accomplished by striking an arc in the preselected region so as to locally melt the alloy in the preselected region, providing a filler metal having the same composition as the gamma titanium aluminide alloy of the article, and feeding the filler metal into the arc so that the filler metal is melted and fused with the article to form a weldment upon solidification.
Document ID
20080006951
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Smashey, Russell W.
Kelly, Thomas J.
Snyder, John H.
Sheranko, Ronald L.
Date Acquired
August 24, 2013
Publication Date
July 28, 1998
Subject Category
Metals And Metallic Materials
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-785408
Patent Number: US-PATENT-5,785,775
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-5,785,775
Patent Application
US-PATENT-APPL-SN-785408
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