Intermetallic alloy welding wires and method for fabricating the same
- 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:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- 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
alloy
welding
wires
method
fabricating
alloys
nickel
aluminides
nickel-iron
iron
titanium
preferably
including
additional
alloying
constituents
fabricated
two-component
clad
structures
component
contains
primary
constituent
aluminum
approach
wire
overcomes
difficulties
associated
mechanically
forming
possess
strength
limited
ductilities
elevated
temperatures
normally
employed
conventional
metal
processes
composition
readily
tailored
melted
form
defined
weld
deposit
substantially
corresponds
joined
metallic alloys
metallic alloy
intermetallic alloys
nickel-iron aluminides
intermetallic alloy
nickel aluminide
elevated temperatures
elevated temperature
iron aluminide
titanium aluminide
normally employed
component contains
nickel aluminides
welding wires
preferably including
nickel-iron aluminide
mechanically forming
iron aluminides
conventional metal
weld deposit
welding wire
alloy weld
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