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WO2018036797A1 - Alliage monocristallin à base de nickel à propriétés en fatigue thermomécanique améliorées, matériau brut et pièce - Google Patents

Alliage monocristallin à base de nickel à propriétés en fatigue thermomécanique améliorées, matériau brut et pièce Download PDF

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Publication number
WO2018036797A1
WO2018036797A1 PCT/EP2017/069917 EP2017069917W WO2018036797A1 WO 2018036797 A1 WO2018036797 A1 WO 2018036797A1 EP 2017069917 W EP2017069917 W EP 2017069917W WO 2018036797 A1 WO2018036797 A1 WO 2018036797A1
Authority
WO
WIPO (PCT)
Prior art keywords
raw material
component
alloy
properties
nickel alloy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/069917
Other languages
German (de)
English (en)
Inventor
Eike Kohlhoff
Britta Stöhr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to US16/326,409 priority Critical patent/US20210285075A1/en
Priority to EP17755087.8A priority patent/EP3472364A1/fr
Publication of WO2018036797A1 publication Critical patent/WO2018036797A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%

Definitions

  • the invention relates to a nickel-based SX alloy with improved TMF properties, a raw material and a component.
  • the LCF service life at high strain ranges is also reduced by the brittle fracture behavior between room temperature and 923 K.
  • a material having the following composition is advantageous:
  • Co Co 9.0% - 11%, especially 10%
  • Rhenium (Re) 1.0% - 1.30%, in particular 1.25%
  • Yttrium (Y) 0.017% - 0.023%, especially 0, 02%.
  • This material differs from previous Ni-SX compositions by a significantly higher proportion of chromium (Cr), a reduced proportion of rhenium (Re), the addition of silicon (Si) and yttrium (Y) and the fact that it is not titanium ( Ti), except for impurities of max. 0.1 wt. -%.
  • Silicon (Si) improves oxidation resistance
  • Si silicon
  • the LCF life is increased by the increased yield strength at low temperatures and high strain ranges. Reducing the proportion of rhenium (Re) reduces the risk of TCP phase formation, which has a very negative effect on TMF behavior, provided that it is formed during operation.
  • the reduction of rhenium (Re) also allows an increase in the chromium content without stabilizing unwanted TCP phases.
  • the new material should have oxidation properties at least at the level of Alloy 247.
  • the addition of yttrium (Y) has the effect that the material has a particularly good cyclic oxidation properties (improvement of the A1203 topcoat adhesion).
  • the silicon (Si) is mainly incorporated in the ⁇ ⁇ phase, while it is incorporated in titanium-containing materials in the ⁇ phase.
  • the accumulation of silicon (Si) in ⁇ -phase is rather undesirable because this would favor the precipitation of sputtering phases in the channels (eg G-phase).
  • the shear strength is increased by the silicon incorporation into the ⁇ ⁇ phase.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne une composition améliorée d'un superalliage à base de nickel : Ni-8Cr-10Co-0,6Mo-8Ta-1,25Re-5,7Al-0Ti- 0,1Hf-0,25Si-0,008B-0,0210C-0,02Y, laquelle composition offre des propriétés en fatigue thermomécanique améliorées.
PCT/EP2017/069917 2016-08-22 2017-08-07 Alliage monocristallin à base de nickel à propriétés en fatigue thermomécanique améliorées, matériau brut et pièce Ceased WO2018036797A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/326,409 US20210285075A1 (en) 2016-08-22 2017-08-07 Sx-nickel alloy having improved tmf properties, raw material, and component
EP17755087.8A EP3472364A1 (fr) 2016-08-22 2017-08-07 Alliage monocristallin à base de nickel à propriétés en fatigue thermomécanique améliorées, matériau brut et pièce

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16185120.9 2016-08-22
EP16185120.9A EP3287535A1 (fr) 2016-08-22 2016-08-22 Alliage nickel sx ayant des proprietes tmf ameliorees, materiau brut et composant

Publications (1)

Publication Number Publication Date
WO2018036797A1 true WO2018036797A1 (fr) 2018-03-01

Family

ID=56740965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/069917 Ceased WO2018036797A1 (fr) 2016-08-22 2017-08-07 Alliage monocristallin à base de nickel à propriétés en fatigue thermomécanique améliorées, matériau brut et pièce

Country Status (3)

Country Link
US (1) US20210285075A1 (fr)
EP (2) EP3287535A1 (fr)
WO (1) WO2018036797A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2584654A (en) * 2019-06-07 2020-12-16 Oxmet Tech Limited A nickel-based alloy
GB2607537A (en) * 2019-06-07 2022-12-07 Alloyed Ltd A nickel-based alloy
US11634792B2 (en) 2017-07-28 2023-04-25 Alloyed Limited Nickel-based alloy
GB2618754A (en) * 2019-06-07 2023-11-15 Alloyed Ltd A nickel-based alloy
US12319985B2 (en) 2019-10-02 2025-06-03 Alloyed Limited Nickel-based alloy

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235697A (en) * 1986-12-30 1991-03-13 Gen Electric Nickel-base superalloys
US6375766B1 (en) * 1996-10-01 2002-04-23 Siemens Aktiengesellschaft Nickel-base alloy and article manufactured thereof
WO2006067189A1 (fr) * 2004-12-23 2006-06-29 Siemens Aktiengesellschaft Alliage a base de ni, composant, agencement de turbine a gaz et utilisation de pd associee a un tel alliage
WO2010043375A1 (fr) * 2008-10-13 2010-04-22 Schmidt + Clemens Gmbh + Co. Kg Alliage nickel-chrome
EP2631324A1 (fr) * 2010-10-19 2013-08-28 National Institute for Materials Science Élément en un superalliage à base de ni contenant une couche d'accrochage résistante à la chaleur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235697A (en) * 1986-12-30 1991-03-13 Gen Electric Nickel-base superalloys
US6375766B1 (en) * 1996-10-01 2002-04-23 Siemens Aktiengesellschaft Nickel-base alloy and article manufactured thereof
WO2006067189A1 (fr) * 2004-12-23 2006-06-29 Siemens Aktiengesellschaft Alliage a base de ni, composant, agencement de turbine a gaz et utilisation de pd associee a un tel alliage
WO2010043375A1 (fr) * 2008-10-13 2010-04-22 Schmidt + Clemens Gmbh + Co. Kg Alliage nickel-chrome
EP2631324A1 (fr) * 2010-10-19 2013-08-28 National Institute for Materials Science Élément en un superalliage à base de ni contenant une couche d'accrochage résistante à la chaleur

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11634792B2 (en) 2017-07-28 2023-04-25 Alloyed Limited Nickel-based alloy
US12258655B2 (en) 2017-07-28 2025-03-25 Alloyed Limited Nickel-based alloy
GB2584654A (en) * 2019-06-07 2020-12-16 Oxmet Tech Limited A nickel-based alloy
GB2584654B (en) * 2019-06-07 2022-10-12 Alloyed Ltd A nickel-based alloy
GB2607537A (en) * 2019-06-07 2022-12-07 Alloyed Ltd A nickel-based alloy
GB2618754A (en) * 2019-06-07 2023-11-15 Alloyed Ltd A nickel-based alloy
GB2607537B (en) * 2019-06-07 2024-02-28 Alloyed Ltd A nickel-based alloy
GB2618754B (en) * 2019-06-07 2024-04-10 Alloyed Ltd A nickel-based alloy
US12241144B2 (en) 2019-06-07 2025-03-04 Alloyed Limited Nickel-based alloy
US12319985B2 (en) 2019-10-02 2025-06-03 Alloyed Limited Nickel-based alloy

Also Published As

Publication number Publication date
EP3287535A1 (fr) 2018-02-28
EP3472364A1 (fr) 2019-04-24
US20210285075A1 (en) 2021-09-16

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