Superalloys with improved weldability for high temperature applications

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873964

Seth, Brij B ^[1]; George, Easo P ^[2]; Babu, Sudarsanum S ^[2]; Goodwin, Gene M ^[2]; David, Stanislaus A ^[2]; Moyer, Carol E ^[3]

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1. Orlando, FL
2. Oak Ridge, TN
3. Centreville, VA

A cast nickel-base superalloy component (10) is made having a composition containing small amounts of both boron and zirconium which are effective in combination to provide increased weldability, where such alloy is adapted for welding by weld (18) to a second superalloy piece, where the two pieces are firmly bonded together and have a Sigmajig transverse stress value (16) greater than 137.9 million Newtons per square meter.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: FC21-95MC32267
• Assignee: Siemens Westinghouse Power Corporation (Orlando, FL)
• Patent Number(s): US 6284392
• OSTI ID: 873964
• Country of Publication: United States
• Language: English

Related Subjects

superalloys
improved
weldability
temperature
applications
cast
nickel-base
superalloy
component
10
composition
containing
amounts
boron
zirconium
effective
combination
provide
increased
alloy
adapted
welding
weld
18
piece
pieces
firmly
bonded
sigmajig
transverse
stress
value
16
137
million
newtons
square
meter
provide increased
square meter
temperature applications
composition containing
nickel-base superalloy
improved weldability
temperature application
cast nickel
cast nickel-base
/428/148/415/416/420/