Intermetallic alloy welding wires and method for fabricating the same
Patent
·
OSTI ID:870458
- Knoxville, TN
- Oak Ridge, TN
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.
- Research Organization:
- LOCKHEED MARTIN ENRGY SYST INC
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Number(s):
- US 5525779
- OSTI ID:
- 870458
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/219/
additional
alloy
alloy weld
alloying
alloys
aluminides
aluminum
approach
associated
clad
component
component contains
composition
constituent
constituents
contains
conventional
conventional metal
corresponds
defined
deposit
difficulties
ductilities
elevated
elevated temperature
elevated temperatures
employed
fabricated
fabricating
form
forming
including
intermetallic
intermetallic alloy
intermetallic alloys
iron
iron aluminide
iron aluminides
joined
limited
mechanically
mechanically forming
melted
metal
metallic alloy
metallic alloys
method
nickel
nickel aluminide
nickel aluminides
nickel-iron
nickel-iron aluminide
nickel-iron aluminides
normally
normally employed
overcomes
possess
preferably
preferably including
primary
processes
readily
strength
structures
substantially
tailored
temperatures
titanium
titanium aluminide
two-component
weld
weld deposit
welding
welding wire
welding wires
wire
wires
additional
alloy
alloy weld
alloying
alloys
aluminides
aluminum
approach
associated
clad
component
component contains
composition
constituent
constituents
contains
conventional
conventional metal
corresponds
defined
deposit
difficulties
ductilities
elevated
elevated temperature
elevated temperatures
employed
fabricated
fabricating
form
forming
including
intermetallic
intermetallic alloy
intermetallic alloys
iron
iron aluminide
iron aluminides
joined
limited
mechanically
mechanically forming
melted
metal
metallic alloy
metallic alloys
method
nickel
nickel aluminide
nickel aluminides
nickel-iron
nickel-iron aluminide
nickel-iron aluminides
normally
normally employed
overcomes
possess
preferably
preferably including
primary
processes
readily
strength
structures
substantially
tailored
temperatures
titanium
titanium aluminide
two-component
weld
weld deposit
welding
welding wire
welding wires
wire
wires