IP Library Granted Patent US 9,593,583
Granted Patent B2
US 9,593,583 · App. 13/825,140 · Granted Mar 14, 2017

Nickel-base superalloy

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Quick Facts
Patent No.
US 9,593,583
App. No.
13/825,140
Granted
Mar 14, 2017
Kind
B2
Abstract

A nickel-base superalloy for turbine vanes or turbine blades is provided. The nickel-base superalloy has in wt %: C: equal to or greater 0.1; Si: </=0.2; Mn: </=0.2; P: </=0.005; S: </=0.0015; Al: 4.0 to 5.5; B: </=0.03; Co: 5.0 to 9.0; Cr: 18.0 to 22.0; Cu: </=0.1; Fe: </=0.5; Hf: 0.9 to 1.3; Mg: </=0.002; Mo: </=0.5; N: </=0.0015; Nb: </=0.01; O: </=0.0015; Ta: 4.8 to 5.2; Ti: 0.8 to 2.0; W: 1.8 to 2.5; Zr: </=0.01; Ni: balance; and inevitable impurities.

Claims (67)

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

C: ≦0.1

Si: present in an amount up to 0.2

Mn: ≦0.2

P: ≦0.005

S: ≦0.0015

Al: 4.0 to 5.5

B: ≦0.03

Co: 5.0 to 9.0

Cr: 18.2 to 19.2

Cu: ≦0.1

Fe: present in an amount up to 0.5

Hf: 0.9 to 1.3

Mg: ≦0.002

Mo: ≦0.5

N: ≦0.0015

Nb: ≦0.01

O: ≦0.0015

Ta: 4.8 to 5.2

Ti: 0.8 to 2.0

W: 1.8 to 2.5

Zr: ≦0.01

Ni: balance;

and inevitable impurities.

2. A turbine, comprising:

a turbine component made of a nickel-base super alloy as claimed in claim 1 .

3. The turbine as claimed in claim 2 , wherein the turbine component is a gas turbine component with a directionally solidified or single crystal structure.

4. The turbine as claimed in claim 3 , wherein the component is a gas turbine blade or vane.

5. The nickel-base super alloy, which comprises (in wt %):

C: 0.03 to 0.07

Si: present in an amount up to 0.2

Mn: ≦0.2

P: ≦0.005

S: ≦0.0015

Al: 4.2 to 4.4

B: ≦0.01

Co: 7.8 to 8.5

Cr: 18.2 to 19.2

Cu: ≦0.1

Fe: present in an amount up to 0.5

Hf: 1.0 to 1.2

Mg: ≦0.002

Mo: ≦0.5

N: ≦0.0015

Nb: ≦0.01

O: ≦0.0015

Ta: 4.9 to 5.1

Ti: 1.1 to 1.3

W: 2.0 to 2.4

Zr: 0.03 to 0.07

Ni: balance

and inevitable impurities.

6. A nickel-base super alloy consisting of (in wt %):

C: 0.04

Si: 0.001

Al: 4.2

B: 0.001

Co: 8.0

Cr: 18.2

Fe: 0.07

Hf: 0.9

Nb: 0.008

Ta: 4.9

Ti: 1.1

W: 2.0

Ni: balance

and inevitable impurities.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 15, 2021
From: SIEMENS AKTIENGESELLSCHAFT
To: SIEMENS ENERGY GLOBAL GMBH & CO. KG
Reel/Frame 055950/0027 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2013
From: WALKER, PAUL MATHEW; WHITEHURST, MICK
To: SIEMENS INDUSTRIAL TURBOMACHINERY LIMITED
Reel/Frame 030047/0800 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2013
From: SIEMENS INDUSTRIAL TURBOMACHINERY LIMITED
To: SIEMENS AKTIENGESELLSCHAFT
Reel/Frame 030047/0901 →