IP Library › Granted Patent US 12,742,227
Granted Patent B2
US 12,742,227 · App. 19/058,720 · Granted Sep 22, 2026

Nickel-based alloy

Inventors: David Crudden (Yarnton, GB); Andre Nemeth (Yarnton, GB)
Assignee: ALLOYED LIMITED
C22C19/056B33Y70/00
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Quick Facts
Patent No.
US 12,742,227
App. No.
19/058,720
Granted
Sep 22, 2026
Kind
B2
Abstract

A nickel-based alloy composition consisting, in weight percent, of: between 1.0 and 3.5% aluminium, 0.0 and 3.6% titanium, 0.0 and 6.0% niobium, 0.0 and 4.9% tantalum, 0.0 and 5.4% tungsten, 0.0 and 4.0% molybdenum, 8.9 and 30.0% cobalt, 10.8 and 20.6% chromium, 0.02 and 0.35% carbon, between 0.001 and 0.2% boron, between 0.001 and 0.5% zirconium, 0.0 and 5.0% rhenium, 0.0 and 8.5% ruthenium, 0.0 and 4.6 percent iridium, between 0.0 and 0.5% vanadium, between 0.0 and 1.0% palladium, between 0.0 and 1.0% platinum, between 0.0 and 0.5% silicon, between 0.0 and 0.1% yttrium, between 0.0 and 0.1% lanthanum, between 0.0 and 0.1% cerium, between 0.0 and 0.003% sulphur, between 0.0 and 0.25% manganese, between 0.0 and 6.0% iron, between 0.0 and 0.5% copper, between 0.0 and 0.5% hafnium, the balance being nickel and incidental impurities, wherein the following equations are satisfied in which W Nb , W Ta , W Ti , W Mo , W Al , W Re and W Ru are the weight percent of niobium, tantalum, titanium, molybdenum, aluminium, rhenium and ruthenium in the alloy respectively 4.2 ≤ ( W W + 0.92 W Re + 1.58 W Ru ) + W Mo W Al + 0.5 W Ti + 0.3 W Nb + 0.15 W Ta ≤ 4. 3. ≤ W Al + 0.5 W Ti + 1.5 ( 0.3 W Nb + 0.15 W Ta ) .

Claims (132)

1 . A nickel-based alloy composition consisting, in weight percent, of: 1.0 to 3.5% aluminium, 0.0 to 3.6% titanium, 0.0 to 6.0% niobium, 0.0 to 4.9% tantalum, 0.0 to 5.4% tungsten, 0.0 to 4.0% molybdenum, 15.6 to 30.0% cobalt, 10.8 to 20.6% chromium, 0.02 to 0.35% carbon, 0.001 to 0.2% boron, 0.001 to 0.01% zirconium, 0.0 to 5.0% rhenium, 0.0 to 8.5% ruthenium, 0.0 to 4.6 percent iridium, 0.0 to 0.5% vanadium, 0.0 to 1.0% palladium, 0.0 to 1.0% platinum, 0.0 to 0.5% silicon, 0.0 to 0.1% yttrium, 0.0 to 0.1% lanthanum, 0.0 to 0.1% cerium, 0.0 to 0.003% sulphur, 0.0 to 0.25% manganese, 0.0 to 6.0% iron, 0.0 to 0.5% copper, 0.0 to 0.5% hafnium, the balance being nickel and incidental impurities, wherein the following equations are satisfied in which W Nb , W Ta , W Ti , W Mo , W Al , W Re and W Ru are the weight percent of niobium, tantalum, titanium, molybdenum, aluminium, rhenium and ruthenium in the alloy respectively

4.2

≤

(

W

W

+

0.92

W

Re

+

1.58

W

Ru

)

+

W

Mo

⁢

and

3.

≤

W

Al

+

0

.

5

⁢

W

Ti

+

1

.

5

⁢

(

0

.

3

⁢

W

Nb

+

0

.

1

⁢

5

⁢

W

Ta

)

,

and

wherein the following equation is satisfied in which W Nb , W Ta , W Ti and W Al are the weight percent of niobium, tantalum, titanium and aluminium in the alloy respectively

(

0

.

5

⁢

W

Ti

+

0

.

3

⁢

W

Nb

+

0

.

1

⁢

5

⁢

W

Ta

)

/

W

Al

≤

1.5

.

2 . The nickel-based alloy composition of claim 1 , wherein the sum of elements molybdenum and tungsten, in weight percent, is 5.3 to 9.4%.

3 . The nickel-based alloy composition of claim 1 consisting of, in weight percent, is 1.0 to 3.0% aluminium.

4 . The nickel-based alloy composition of claim 1 , consisting of, in weight percent, 0.2 to 4.9 wt. % tungsten.

5 . The nickel-based alloy composition of claim 1 , consisting of, in weight percent, 1.6 to 4.0 wt. % molybdenum.

6 . The nickel-based alloy composition of claim 1 , consisting of, in weight percent 3.0 wt % or less titanium and 15.0 wt % or more and 20.6 wt % or less chromium.

7 . The nickel-based alloy composition of claim 1 , consisting of, in weight percent, 15.6 to 25.0 wt. % cobalt.

8 . The nickel-based alloy composition of claim 1 , consisting of, in weight percent, 0.001 to 0.006 wt. % zirconium.

9 . The nickel-based alloy composition of claim 1 , consisting of, in weight percent, 5.1 wt % or less niobium.

10 . The nickel-based alloy composition of claim 1 , having a microstructure with a volume fraction of γ′ of 0.18 and 0.30 at 900° C.

11 . The nickel-based alloy composition of claim 1 , wherein the sum of elements tungsten, rhenium, ruthenium and iridium is less than or equal to 5.4 wt % equivalent of tungsten alone.

12 . The nickel-based alloy composition of claim 1 , consisting of, in weight percent, 3.0 wt % or less rhenium and/or ruthenium and/or iridium.

13 . The nickel-based alloy composition according to claim 1 , wherein the following equation is satisfied in

W

Al

+

0

.

5

⁢

W

Ti

+

0

.

3

⁢

W

Nb

+

0

.

1

⁢

5

⁢

W

Ta

≤

4.

.

14 . The nickel based alloy composition according to claim 1 , consisting of, in weight percent, 3.8 wt. % or less molybdenum.

15 . The nickel based alloy composition according to claim 1 , consisting of, in weight percent, 0.1 wt. % to 4.9 wt. % tantalum.

16 . The nickel based alloy composition according to claim 1 , consisting of, in weight percent, 0.1 wt. % to 6.0 wt. % niobium.

17 . The nickel based alloy composition according to claim 1 , consisting of, in weight percent, 0.1 wt. % to 3.6 wt. % titanium.

18 . The nickel based alloy composition according to claim 1 , consisting of, in weight percent, 0.2 wt. % to 5.4 wt. % tungsten.

19 . The nickel based alloy composition according to claim 1 , consisting of, in weight percent, of 10.8 wt. % or more and 20.6 wt. % or less chromium and W Mo +W w less than 10.8 wt. %.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2025
From: CRUDDEN, DAVID; NEMETH, ANDRE
To: OXMET TECHNOLOGIES LIMITED
Reel/Frame 070278/0580 →
CHANGE OF NAME Recorded Feb 20, 2025
From: OXMET TECHNOLOGIES LIMITED
To: ALLOYED LIMITED
Reel/Frame 070278/0704 →
Priority Claims (1)
GB 1712196 · Jul 28, 2017 · national
Continuity (3)
Continuation 18117828 · Mar 6, 2023
Continuation 16634406 · Jul 27, 2018
Related Publication 20250230526A1 · Jul 17, 2025
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