NICKEL-BASED SUPERALLOY AND ARTICLES
First Claim
1. A composition of matter comprising:
- from about 16 to about 20 wt % chromium;
greater than 6 to about 10 wt % aluminum;
from about 2 to about 10 wt % iron;
less than about 0.04 wt % yttrium;
less than about 12 wt % cobalt;
less than about 1.0 wt % manganese;
less than about 1.0 wt % molybdenum;
less than about 1.0 wt % silicon;
less than about 0.25 wt % carbon;
about 0.03 wt % boron;
less than about 1.0 wt % tungsten;
less than about 1.0 wt % tantalum;
about 0.5 wt % titanium;
about 0.5 wt % hafnium;
about 0.5 wt % rhenium;
about 0.4 wt % lanthanide elements; and
balance nickel and incidental impurities.
1 Assignment
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Accused Products
Abstract
A composition of matter includes from about 16 to about 20 wt % chromium, greater than 6 to about 10 wt % aluminum, from about 2 to about 10 wt % iron, less than about 0.04 wt % yttrium, less than about 12 wt % cobalt, less than about 1.0 wt % manganese, less than about 1.0 wt % molybdenum, less than about 1.0 wt % silicon, less than about 0.25 wt % carbon, about 0.03 wt % boron, less than about 1.0 wt % tungsten, less than about 1.0 wt % tantalum, about 0.5 wt % titanium, about 0.5 wt % hafnium, about 0.5 wt % rhenium, about 0.4 wt % lanthanide elements, and the balance being nickel and incidental impurities. This nickel-based superalloy composition may be used in superalloy articles, such as a blade, nozzle, a shroud, a splash plate, a squealer tip of the blade, and a combustor of a gas turbine engine.
0 Citations
20 Claims
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1. A composition of matter comprising:
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from about 16 to about 20 wt % chromium; greater than 6 to about 10 wt % aluminum; from about 2 to about 10 wt % iron; less than about 0.04 wt % yttrium; less than about 12 wt % cobalt; less than about 1.0 wt % manganese; less than about 1.0 wt % molybdenum; less than about 1.0 wt % silicon; less than about 0.25 wt % carbon; about 0.03 wt % boron; less than about 1.0 wt % tungsten; less than about 1.0 wt % tantalum; about 0.5 wt % titanium; about 0.5 wt % hafnium; about 0.5 wt % rhenium; about 0.4 wt % lanthanide elements; and balance nickel and incidental impurities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An article comprising a composition, the composition comprising:
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from about 16 to about 20 wt % chromium; greater than 6 to about 10 wt % aluminum; from about 2 to about 10 wt % iron; less than about 0.04 wt % yttrium; less than about 12 wt % cobalt; less than about 1.0 wt % manganese; less than about 1.0 wt % molybdenum; less than about 1.0 wt % silicon; less than about 0.25 wt % carbon; about 0.03 wt % boron; less than about 1.0 wt % tungsten; less than about 1.0 wt % tantalum; about 0.5 wt % titanium; about 0.5 wt % hafnium; about 0.5 wt % rhenium; about 0.4 wt % lanthanide elements; and balance nickel and incidental impurities. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification
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- Resources
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Current AssigneeGE Infrastructure Technology, LLC (General Electric Company)
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Original AssigneeGeneral Electric Company
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InventorsCui, Yan, Arnett, Michael Douglas, Laylock, Matthew Joseph, Tollison, Brian Lee, VanTassel, Brad Wilson
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current
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CPC Class CodesC22C 19/056 with the maximum Cr content...C22C 19/058 without Mo and W
