Nickel-based superalloy

US9017605B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9017605-B2
Application numberUS-201113332821-A
CountryUS
Kind codeB2
Filing dateDec 21, 2011
Priority dateJul 9, 2009
Publication dateApr 28, 2015
Grant dateApr 28, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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Abstract

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A nickel-base superalloy is characterized by the following chemical composition (details in % by weight): 7.7-8.3 Cr, 5.0-5.25 Co, 2.0-2.1 Mo, 7.8-8.3 W, 5.8-6.1 Ta, 4.9-5.1 Al, 1.0-1.5 Ti, 1.0-2.0 Re, 0.11-0.15 Si, 0.1-0.7 Hf, 0-0.5 Nb, 0.02-0.17 C, 50-400 ppm B, remainder Ni and production-related impurities. The alloy is distinguished by a very high resistance to oxidation, resistance to corrosion and good creep properties at high temperatures.

First claim

Opening claim text (preview).

We claim: 1. A nickel-base superalloy, having the following chemical composition (in % by weight): 7.7-8.3 Cr 5.0-5.25 Co 2.0-2.1 Mo 7.8-8.3 W 5.8-6.1 Ta 4.9-5.1 Al 1.0-1.5 Ti 1.0-2.0 Re 0.1-0.2 Nb 0.11-0.15 Si 0.1-0.7 Hf 0.02-0.17 C 50-400 ppm B remainder nickel and production-related impurities. 2. The nickel-base superalloy as claimed in claim 1 , wherein the Re content is 1.0-1.5% by weight. 3. The nickel-base superalloy as claimed in claim 1 , wherein the Re content is 1.5% by weight. 4. The nickel-base superalloy as claimed in claim 1 , wherein the Nb content is 0.1% by weight. 5. The nickel-base superalloy as claimed in claim 1 , wherein the Hf content is 0.1-0.6% by weight. 6. The nickel-base superalloy as claimed in claim 1 , wherein the Hf content is 0.1% by weight. 7. The nickel-base superalloy as claimed in claim 1 , wherein the C content is 0.02-0.095 by weight. 8. The nickel-base superalloy as claimed in claim 1 , wherein the C content is 0.02-0.03% by weight. 9. The nickel-base superalloy as claimed in claim 1 , wherein the B content is 50-100 ppm. 10. The nickel-base superalloy as claimed in claim 1 , wherein the B content is 90 ppm. 11. The nickel-base superalloy as claimed in claim 1 , having the following chemical composition (in % by weight): 8.2 Cr 5.2 Co 2.1 Mo 8.1 W 6.1 Ta 5.0 Al 1.4 Ti 1.5 Re 0.1-0.2 Nb 0.12 Si 0.1-0.6 Hf 0.095-0.17 C 240-290 ppm B remainder nickel and production-related impurities. 12. The nickel-base superalloy as claimed in claim 1 , having the following chemical composition (in % by weight): 8.2 Cr 5.2 Co 2.1 Mo 8.1 W 6.1 Ta 5.0 Al 1.4 Ti 1.5 Re 0.1 Nb 0.12 Si 0.1 Hf 200 ppm C 90 ppm B reminder nickel and production-related impurities. 13. A nickel-base superalloy, having the following chemical composition (in % by weight): 8.2 Cr 5.2 Co 2.1 Mo 8.1 W 6.1 Ta 5.0 Al 1.4 Ti 1.5 Re 0-0.2 Nb 0.12 Si 0.1-0.6 Hf 0.095-0.17 C 240-290 ppm B remainder nickel and production-related impurities.

Assignees

Inventors

Classifications

  • C22C19/057Primary

    with the maximum Cr content being less 10% · CPC title

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Frequently asked questions

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What does patent US9017605B2 cover?
A nickel-base superalloy is characterized by the following chemical composition (details in % by weight): 7.7-8.3 Cr, 5.0-5.25 Co, 2.0-2.1 Mo, 7.8-8.3 W, 5.8-6.1 Ta, 4.9-5.1 Al, 1.0-1.5 Ti, 1.0-2.0 Re, 0.11-0.15 Si, 0.1-0.7 Hf, 0-0.5 Nb, 0.02-0.17 C, 50-400 ppm B, remainder Ni and production-related impurities. The alloy is distinguished by a very high resistance to oxidation, resistance to cor…
Who is the assignee on this patent?
Nazmy Mohamed Youssef, Kuenzler Andreas, Gerdes Claus Paul, and 1 more
What technology area does this patent fall under?
Primary CPC classification C22C19/057. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).