IP Library › Granted Patent US 11,193,186
Granted Patent B2
US 11,193,186 · App. 16/615,615 · Granted Dec 7, 2021

High-temperature nickel-base alloy

Inventors: Juergen Kiese (Cottbus, DE); Nicole De Boer (Wendelstein, DE); Heike Hattendorf (Werdohl, DE)
Assignee: VDM Metals International GmbH
C22C19/055C22F1/10
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Quick Facts
Patent No.
US 11,193,186
App. No.
16/615,615
Granted
Dec 7, 2021
Kind
B2
Abstract

A high-temperature nickel-base alloy consists of (in wt. %): C: 0.04-0.1%, S: max. 0.01%, N: max. 0.05%, Cr: 24-28%, Mn: max. 0.3%, Si: max. 0.3%, Mo: 1-6%, Ti: 0.5-3%, Nb: 0.001-0.1%, Cu: max. 0.2%, Fe: 0.1-0.7%, P: max. 0.015%, Al: 0.5-2%, Mg: max. 0.01%, Ca: max. 0.01%, V: 0.01-0.5%, Zr: max. 0.1%, W: 0.2-2%, Co: 17-21%, B: max. 0.01%, O: max. 0.01%, with the rest being Ni, as well as melting-related impurities.

Claims (63)

1. A nickel-base alloy comprising (in wt %):

C

 0.04-0.1%

S

max. 0.01%

N

max. 0.05%

Cr

  24-28%

Mn

max. 0.3%

Si

max. 0.3%

Mo

   1-6%

Ti

 0.5-3%

Nb

0.001-0.02%

Cu

max. 0.2%

Fe

 0.1-0.7%

P

max. 0.015%

Al

 0.5-2%

Mg

max. 0.01%

Ca

max. 0.01%

V

 0.01-0.5%

Zr

0.01-max. 0.1%

W

 0.2-2%

Co

  17-21%

B

max. 0.01%

O

max. 0.01%

Ni

the rest as well as smelting-related impurities,

wherein the nickel base alloy is usable for structural parts exposed to structural-part temperatures ≥900° C.

2. The nickel-base alloy according to claim 1 , containing (in wt %) Cr 24-26%.

3. The nickel-base alloy according to claim 1 , containing (in w t%) Mo 2-6%.

4. The nickel-base alloy according to claim 1 , containing (in w t%) Mo 1.5-2.5%.

5. The nickel-base alloy according to claim 1 , containing (in wt %) Mo 4-6%.

6. The nickel-base alloy according to claim 1 , containing (in w t%) Ti 0.5-2.5%.

7. The nickel-base alloy according to claim 1 , containing (in w t%) Ti 1.5-2.5%.

8. The nickel-base alloy according to claim 1 , containing (in wt %) Al 0.5-1.5%.

9. The nickel-base alloy according to claim 1 , containing (in wt %) V 0.01-0.2%.

10. The nickel-base alloy according to claim 1 , containing (in wt %) W 0.5-1.5%.

11. The nickel-base alloy according to claim 1 , wherein the sum of Ti+Al (in wt %) is at least 1%.

12. The nickel-base alloy according to claim 1 , wherein the sum of Ti+Al (in wt %) is at least 1.5%.

13. The nickel-base alloy according to claim 1 , wherein the Ti/Al ratio is at most 3.5.

14. A structural part comprising the nickel-base alloy according to claim 1 , wherein the structural part is exposed to structural-part temperatures >950° C.

15. The nickel-base alloy according to claim 1 , usable for structural parts in internal-combustion engines.

16. The nickel-base alloy according to claim 1 , usable as structural parts of turbochargers.

17. The nickel-base alloy according to claim 1 , usable for structural parts in flying or stationary turbines.

18. The nickel-base alloy according to claim 17 , usable for blades or guide elements in flying or stationary turbines.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 21, 2019
From: KIESE, JUERGEN; DE BOER, NICOLE; HATTENDORF, HEIKE
To: VDM METALS INTERNATIONAL GMBH
Reel/Frame 051078/0428 →
Priority Claims (1)
DE 10 2017 007 106.3 · Jul 28, 2017 · national
Continuity (1)
Related Publication 20200172997A1 · Jun 4, 2020
Cited By (1)
US 12,428,705