EP1815035A2 - Superalliage a base de nickel - Google Patents

Superalliage a base de nickel

Info

Publication number
EP1815035A2
EP1815035A2 EP05815708A EP05815708A EP1815035A2 EP 1815035 A2 EP1815035 A2 EP 1815035A2 EP 05815708 A EP05815708 A EP 05815708A EP 05815708 A EP05815708 A EP 05815708A EP 1815035 A2 EP1815035 A2 EP 1815035A2
Authority
EP
European Patent Office
Prior art keywords
ppm
nickel
alloy
based superalloy
components
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.)
Withdrawn
Application number
EP05815708A
Other languages
German (de)
English (en)
Inventor
Mohamed Youssef Nazmy
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1815035A2 publication Critical patent/EP1815035A2/fr
Withdrawn legal-status Critical Current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 the field of materials technology. It relates to a nickel-base superalloy, in particular for the production of single-crystal components (SX alloy) or components with directionally solidified structure (DS alloy), such as blades for gas turbines.
  • SX alloy single-crystal components
  • DS alloy directionally solidified structure
  • the alloy according to the invention can also be used for conventionally cast components.
  • Nickel-base superalloys are known. Single crystal components of these alloys have a very good material strength at high temperatures. As a result, z. B. the inlet temperature of gas turbines are increased, whereby the efficiency of the gas turbine increases.
  • Nickel-based superalloys for single-crystal components as known from US Pat. Nos. 4,643,782, EP 0 208 645 and US Pat. No. 5,270,123, contain alloying-strengthening alloying elements, for example Re, W, Mo, Co, Cr and y-phase-forming elements, for example Al, Ta, and Ti.
  • W, Mo, Re high-melting alloy elements
  • the alloys disclosed in the above references have high creep strength, good LCF (low cycle fatigue fatigue) and HCF (high cycle life fatigue) properties, and high oxidation resistance.
  • grain boundaries are particularly detrimental to the high temperature properties of single crystal articles. While small-angle grain boundaries have relatively little effect on the properties of small components, they are highly relevant to castability and high-temperature oxidation behavior of large SX or DS devices.
  • Grain boundaries are areas of high local disorder of the crystal lattice, because neighboring grains collide in these areas and thus there is a certain disorientation between the crystal lattices.
  • microstructures which have an equiaxial or prismatic grain structure are produced by the enrichment of nickel-based superalloys with boron or carbon in a directional solidification.
  • Carbon and boron strengthen the grain boundaries because C and B cause the precipitation of carbides and borides at the grain boundaries, which are stable at high temperatures.
  • the presence of these elements in and along the grain boundaries reduces the diffusion process, which is a major cause of grain boundary weakness. It is therefore possible to increase the disorientations to 10 ° to 12 ° and still achieve good properties of the material at high temperatures.
  • these small-angle grain boundaries negatively affect the properties.
  • the document EP 1 359 231 A1 describes a nickel-base superalloy which has improved castability and a higher oxidation resistance in comparison to known nickel-base superalloys.
  • this alloy is z. B. particularly suitable for large gas turbine single crystal components with a length of> 80 mm. It has the following chemical composition (in% by weight): 7.7-8.3 Cr
  • TBC Thermal Barrier Coating
  • the aim of the invention is to avoid the mentioned disadvantages of the prior art.
  • the invention is based on the object of further improving the nickel-base superalloy known from EP 1 359 231 A1, in particular with regard to better compatibility with TBC layers to be applied to this superalloy with comparably good castability and high resistance to oxidation compared to the nickel-base superalloy known from EP 1 359 231 A1.
  • the nickel-base superalloy is characterized by the following chemical composition (data in% by weight):
  • the alloy is very easy to cast, has a high oxidation resistance at high temperatures and is well compatible with applied TBC layers.
  • the alloy has the following composition (in% by weight):
  • An advantageous alloy according to the invention has the following chemical composition (in% by weight):
  • This alloy is outstandingly suitable for the production of large single-crystal components, for example gas turbine blades.
  • Nickel-base superalloys known from the prior art comparative alloys VL1 to VL5
  • alloy L1 according to the invention having the chemical composition given in Table 1 were investigated (in% by weight):
  • Alloy L1 is a nickel base superalloy for single crystal components whose composition falls within the scope of the present invention.
  • the alloys VL1, VL2, VL3, VL4 are comparative alloys which are known in the art under the designations CMSX-11B, CMSX-6, CMSX-2 and Rene N5. They differ, inter alia. of the alloy according to the invention, especially in that they are not alloyed with C, B, Si, and also Y and / or La.
  • the comparison alloy VL5 is known from EP 1 359 231 A1 and differs from the alloy according to the invention in the S, Y or La content.
  • Grain boundary weakness is. As a result, the castability of long single crystal Components, such as gas turbine blades with a length of about 200 to 230 mm, significantly improved.
  • the restriction of the inventive composition to a sulfur content of ⁇ 5 ppm causes very good properties, in particular a good adhesion of applied to the surface of the superalloy, for example thermally sprayed, TBC layer. If the sulfur content is> 5 ppm, then this has a negative effect on the TBC adhesion, it quickly comes to flaking the layer under thermal cycling.
  • the proportion of 50 ppm Y and 10 ppm La given in the alloy L1 is particularly advantageous, since L1 is particularly well compatible with the TBC layers to be applied.
  • these two elements also increase the resistance to environmental influences.
  • Y and La are oxygen-active elements that improve the adhesion of the scale layer to the base material. Cyclic oxidation spallation resistance is the key factor for the stability of the TBC layer.
  • the alloy L1 according to the invention has by far the highest number of cycles until the oxide layer flakes off. This suggests a high stability of a applied to the surface of the superalloy, for example, thermally sprayed TBC layer close.
  • nickel-base superalloys having higher C and B contents are selected according to claim 1 of the invention, the components produced therefrom can also be cast conventionally, ie they are not single crystals.

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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Physical Vapour Deposition (AREA)
  • Laminated Bodies (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

L'invention concerne un superalliage à base de nickel qui est caractérisé par la composition chimique suivante (données en % en poids) : entre 7,7 et 8,3 de Cr, entre 5,0 et 5,25 de Co, entre 2,0 et 2,1 de Mo, entre 7,8 et 8,3 de W, entre 5,8 et 6,1 de Ta, entre 4,9 et 5,1 d'Al, entre 1,3 et 1,4 de Ti, entre 0,11 et 0,15 de Si, entre 0,11 et 0,15 de Hf, entre 200 et 750 ppm de C, entre 50 et 400 ppm de B, entre 0,1 et 5 ppm de S, entre 5 et 100 ppm de Y, et/ou entre 5 et 100 de La, du Ni résiduel, et des impuretés qui sont liées au processus de production. Ce superalliage à base de nickel est caractérisé par une très bonne coulabilité, une bonne résistance à l'oxydation, et une bonne compatibilité avec des couches de TBC appliquées à sa surface.
EP05815708A 2004-11-18 2005-11-01 Superalliage a base de nickel Withdrawn EP1815035A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH18972004 2004-11-18
PCT/EP2005/055676 WO2006053826A2 (fr) 2004-11-18 2005-11-01 Superalliage a base de nickel

Publications (1)

Publication Number Publication Date
EP1815035A2 true EP1815035A2 (fr) 2007-08-08

Family

ID=34974189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05815708A Withdrawn EP1815035A2 (fr) 2004-11-18 2005-11-01 Superalliage a base de nickel

Country Status (7)

Country Link
US (1) US20070199628A1 (fr)
EP (1) EP1815035A2 (fr)
JP (1) JP5186215B2 (fr)
CN (1) CN101061244B (fr)
AR (1) AR051423A1 (fr)
CA (1) CA2586974C (fr)
WO (1) WO2006053826A2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE426052T1 (de) * 2005-07-12 2009-04-15 Alstom Technology Ltd Keramische warmedammschicht
DE102008007605A1 (de) 2008-02-04 2009-08-06 Uhde Gmbh Modifiziertes Nickel
CN102676881A (zh) * 2012-06-12 2012-09-19 钢铁研究总院 消除原始颗粒边界的镍基粉末冶金高温合金
CN103539349B (zh) * 2012-07-16 2016-08-03 苏州宏久航空防热材料科技有限公司 一种非铂族耐高温合金漏板及其制备方法
WO2014029512A2 (fr) 2012-08-24 2014-02-27 Alstom Technology Ltd Combustion séquentielle à mélangeur de gaz de dilution
CN103436740B (zh) * 2013-08-08 2015-12-09 南京理工大学 一种无铼镍基单晶高温合金及其制备方法
EP2949768B1 (fr) * 2014-05-28 2019-07-17 Ansaldo Energia IP UK Limited Précipitation gamma prime renforcée par un superalliage à base de nickel destinée à être utilisée dans un processus de fabrication d'additif à base de poudre
WO2019107502A1 (fr) * 2017-11-29 2019-06-06 日立金属株式会社 Alliage à base de ni pour filière chaude, filière de forgeage à chaud l'utilisant, et procédé de fabrication de produits forgés
WO2019106922A1 (fr) 2017-11-29 2019-06-06 日立金属株式会社 ALLIAGE À BASE DE Ni POUR MATRICE DE FORMAGE À CHAUD, ET MATRICE DE FORGEAGE À CHAUD L'UTILISANT
CN112176225A (zh) * 2020-09-24 2021-01-05 中国科学院金属研究所 一种镍基单晶高温合金及其制备方法
JP7445622B2 (ja) 2021-04-30 2024-03-07 デノラ・ペルメレック株式会社 次亜塩素酸ナトリウム溶液の製造方法および製造装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69404455T2 (de) * 1993-04-14 1998-02-26 United Technologies Corp Entschwefelungsverfahren zur verbesserung der oxydationsbeständigkeit von werkstücken aus superlegierung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764225A (en) * 1979-05-29 1988-08-16 Howmet Corporation Alloys for high temperature applications
US4643782A (en) * 1984-03-19 1987-02-17 Cannon Muskegon Corporation Single crystal alloy technology
US4895201A (en) * 1987-07-07 1990-01-23 United Technologies Corporation Oxidation resistant superalloys containing low sulfur levels
US5435861A (en) * 1992-02-05 1995-07-25 Office National D'etudes Et De Recherches Aerospatiales Nickel-based monocrystalline superalloy with improved oxidation resistance and method of production
US5270123A (en) * 1992-03-05 1993-12-14 General Electric Company Nickel-base superalloy and article with high temperature strength and improved stability
US5443789A (en) * 1992-09-14 1995-08-22 Cannon-Muskegon Corporation Low yttrium, high temperature alloy
JP2002167636A (ja) * 2000-10-30 2002-06-11 United Technol Corp <Utc> 接合被覆なしに断熱被覆を保持できる低密度耐酸化性超合金材料
WO2003080882A1 (fr) * 2002-03-27 2003-10-02 National Institute For Materials Science Superalliage a base de ni solidifie de maniere directionnelle et superalliage a cristal unique a base de ni
CH695497A5 (de) * 2002-04-30 2006-06-15 Alstom Technology Ltd Nickel-Basis-Superlegierung.
CN1173058C (zh) * 2002-08-16 2004-10-27 钢铁研究总院 一种抗金属灰化的镍基高温合金
US6706241B1 (en) * 2002-11-12 2004-03-16 Alstom Technology Ltd Nickel-base superalloy

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69404455T2 (de) * 1993-04-14 1998-02-26 United Technologies Corp Entschwefelungsverfahren zur verbesserung der oxydationsbeständigkeit von werkstücken aus superlegierung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
M. GOEBEL ET AL: "The isothermal-oxidation behavior of several nickel-base single-crystal superalloys with and without coatings", OXIDATION OF METALS, vol. 39, no. 3-4, 1 April 1993 (1993-04-01), pages 231 - 261, XP055118081, ISSN: 0030-770X, DOI: 10.1007/BF00665614 *
TAWANCY H ET AL: "An analytical electron microscopy study of the role of La and Y during high-temperature oxidation of selected Ni-base alloys", SCRIPTA METALLURGICA ET MATERIALIA, OXFORD, GB, vol. 29, no. 5, 1 September 1993 (1993-09-01), pages 689 - 694, XP022809151, ISSN: 0956-716X, [retrieved on 19930901], DOI: 10.1016/0956-716X(93)90420-W *

Also Published As

Publication number Publication date
JP2008520829A (ja) 2008-06-19
WO2006053826A3 (fr) 2007-05-31
CA2586974A1 (fr) 2006-05-26
CN101061244A (zh) 2007-10-24
WO2006053826A2 (fr) 2006-05-26
CN101061244B (zh) 2012-05-30
JP5186215B2 (ja) 2013-04-17
US20070199628A1 (en) 2007-08-30
AR051423A1 (es) 2007-01-10
CA2586974C (fr) 2013-06-25

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