Superalloy material with improved weldability
Abstract
A fusion weldable superalloy containing 0.005-0.5 wt. % scandium. In one embodiment, the superalloy may have a composition similar to IN-939 alloy, but having added scandium and having only 0.005-0.040 wt. % zirconium. A gas turbine component may be formed by an investment casting of such a scandium-containing superalloy, and may include a fusion weld repaired area. A scandium-containing nickel-based superalloy coated with an MCrAlY bond coat will have improved cyclic oxidation resistance due to the sulfur-gettering effect of the scandium.
- Inventors:
- Issue Date:
- Research Org.:
- Siemens Westinghouse Power Corporation, Orlando, FL, (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174738
- Patent Number(s):
- 6696176
- Application Number:
- 10/092,326
- Assignee:
- Siemens Westinghouse Power Corporation
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
- DOE Contract Number:
- FC21-95MC32267
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Allen, David B., Wagner, Gregg P., and Seth, Brij B. Superalloy material with improved weldability. United States: N. p., 2004.
Web.
Allen, David B., Wagner, Gregg P., & Seth, Brij B. Superalloy material with improved weldability. United States.
Allen, David B., Wagner, Gregg P., and Seth, Brij B. Tue .
"Superalloy material with improved weldability". United States. https://www.osti.gov/servlets/purl/1174738.
@article{osti_1174738,
title = {Superalloy material with improved weldability},
author = {Allen, David B. and Wagner, Gregg P. and Seth, Brij B.},
abstractNote = {A fusion weldable superalloy containing 0.005-0.5 wt. % scandium. In one embodiment, the superalloy may have a composition similar to IN-939 alloy, but having added scandium and having only 0.005-0.040 wt. % zirconium. A gas turbine component may be formed by an investment casting of such a scandium-containing superalloy, and may include a fusion weld repaired area. A scandium-containing nickel-based superalloy coated with an MCrAlY bond coat will have improved cyclic oxidation resistance due to the sulfur-gettering effect of the scandium.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 24 00:00:00 EST 2004},
month = {Tue Feb 24 00:00:00 EST 2004}
}
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