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Title: Intermetallic alloy welding wires and method for fabricating the same

Welding wires for welding together intermetallic alloys of nickel aluminides, nickel-iron aluminides, iron aluminides, or titanium aluminides, and preferably including additional alloying constituents are fabricated as two-component, clad structures in which one component contains the primary alloying constituent(s) except for aluminum and the other component contains the aluminum constituent. This two-component approach for fabricating the welding wire overcomes the difficulties associated with mechanically forming welding wires from intermetallic alloys which possess high strength and limited ductilities at elevated temperatures normally employed in conventional metal working processes. The composition of the clad welding wires is readily tailored so that the welding wire composition when melted will form an alloy defined by the weld deposit which substantially corresponds to the composition of the intermetallic alloy being joined. 4 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
242586
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 360101; PA: EDB-96:093395; SN: 96001600384
Patent Number(s):
US 5,525,779/A/
Application Number:
PAN: 8-071,911
Contract Number:
AC05-84OR21400
Resource Relation:
Other Information: PBD: 11 Jun 1996
Research Org:
Lockheed Martin Energy Syst Inc
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; INTERMETALLIC COMPOUNDS; WELDING; NICKEL ALLOYS; ALUMINIUM ALLOYS; IRON ALLOYS; TITANIUM ALLOYS; WELDING RODS; FABRICATION; CHEMICAL COMPOSITION

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