EP1359231B1 - Superalliage à base de Nickel - Google Patents

Superalliage à base de Nickel Download PDF

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Publication number
EP1359231B1
EP1359231B1 EP03100776A EP03100776A EP1359231B1 EP 1359231 B1 EP1359231 B1 EP 1359231B1 EP 03100776 A EP03100776 A EP 03100776A EP 03100776 A EP03100776 A EP 03100776A EP 1359231 B1 EP1359231 B1 EP 1359231B1
Authority
EP
European Patent Office
Prior art keywords
nickel
alloy
ppm
components
temperature
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.)
Expired - Lifetime
Application number
EP03100776A
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German (de)
English (en)
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EP1359231A1 (fr
Inventor
Douglas Arrell
Mohamed 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
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Publication date
Application filed by Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1359231A1 publication Critical patent/EP1359231A1/fr
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    • 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 concerns a nickel-base superalloy, in particular for the production of Single crystal components (SX alloy) or components with directed solidified structure (DS alloy), such as blades for Gas turbines.
  • SX alloy Single crystal components
  • DS alloy directed solidified structure
  • the inventive alloy is also for Conventionally cast components can be used.
  • Such nickel-base superalloys are known. Single-crystal components from these alloys have at high temperatures very good material resistance. 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 found in US 4,643,782, EP 0 208 645 and US 5,270,123, are included solid solution strengthening alloying elements, for example Re, W, Mo, Co, Cr, and ⁇ '-phase-forming elements, such as Al, Ta, and Ti.
  • the Content of high-melting alloying elements (W, Mo, Re) in the Basic matrix (austenitic ⁇ -phase) increases continuously with increase the stress temperature of the alloy.
  • To contain z. B. usual Nickel-based superalloys for single crystals 6-8% W, up to 6% Re and up to 2% Mo (in% by weight).
  • the in the above-mentioned publications alloys disclosed have high creep resistance, good LCF (Low cycle fatigue fatigue) and HCF (high fatigue fatigue) Load cycle number) properties as well as a high oxidation resistance.
  • Another problem of the known nickel-base superalloys is that the castability of large components, eg. B. at Gas turbine blades with a length of more than 80 mm, to be desired leaves.
  • the casting of a perfect, relatively large directionally solidified Single-crystal component of a nickel-base superalloy is extreme difficult because most of these components have errors, e.g. B. Kleinwinkelkornskynskyn, "Frecklen" (these are defects due to a Chain of rectified grains with a high content of eutectic), equiaxial scattering margins, microporosities u. a.
  • Grain boundaries are areas of high local disorder of the crystal lattice since In these areas, the neighboring grains collide and thus one certain disorientation exists between the crystal lattices. ever the greater the disorientation, the greater the disorder, d. H. more greater is the number of dislocations in the grain boundaries that are necessary are, so that the two grains fit together.
  • the aim of the invention is to avoid the disadvantages mentioned.
  • a nickel-based superalloy which have improved castability and higher Oxidation resistance compared to known nickel-base superalloys having.
  • this alloy z For example for large gas turbine single crystal components with a length of> 80 mm be suitable.
  • the nickel-based superalloy according to the invention is characterized by the following chemical composition (data in% by weight): 7.7-8.3 Cr 5.0-5.25 Co 2.0-2.1 Mo 7.8-8.3 W 5.8-6.1 Ta 4.9-5.1 Al 1.3-1.4 Ti 0.11-0.15 Si 0.11-0.15 Hf 200-750 ppm C 50-400 ppm B
  • the advantages of the invention are that the alloy is very good is pourable and over the previously known state of the art improved oxidation resistance at high temperatures.
  • the alloy has the following composition: 7.7-8.3 Cr 5.0-5.25 Co 2.0-2.1 Mo 7.8-8.3 W 5.8-6.1 Ta 4.9-5.1 Al 1.3-1.4 Ti 0.11-0.15 Si 0.11-0.15 Hf 200-300 ppm C 50-100 ppm B
  • This alloy is ideally suited for the production of large single-crystal components, For example, blades for gas turbines.
  • Nickel-based superalloys having the chemical composition given in Table 1 were investigated (in% by weight): Chemical composition of the investigated alloys VL1 (CMSX-11B) VL2 (CMSX-6) VL3 (CMSX-2) VL4 (René N5) L1 Ni rest rest rest rest rest Cr 12.4 9.7 7.9 7.12 7.7 Co 5.7 5.0 4.6 7.4 5.1 Not a word 0.5 3.0 0.6 1.4 2.0 W 5.1 - 8.0 4.9 7.8 Ta 5.18 2.0 6.0 6.5 5.84 al 3:59 4.81 5:58 6:07 5.0 Ti 4.18 4.71 0.99 00:03 1.4 Hf 00:04 00:05 - 00:17 00:12 C - - - 00:02 B - - - - 0005 Si - - - - 00:12 Nb 0.1 - - - - re - - - 2.84 -
  • Alloy L1 is a nickel base superalloy for single crystal components, their composition under the claim of present invention falls.
  • the alloys VL1, VL2, VL3 and VL4 comparative alloys under the designations CMSX-11B, CMSX-6, CMSX-2 and René N5 known prior art are. They differ, inter alia. from the alloy according to the invention all in that they are not alloyed with C, B and Si.
  • FIGS. 1 to 5 a quasi-isothermal oxidation diagram is shown in each case for the comparative alloys VL1 to VL4 (FIGS. 1 to 4) and the alloy L1 according to the invention (FIG. 5).
  • the specific mass change ⁇ m / A data in mg / cm 2 ) at temperatures of 800 ° C., 950 ° C., 1050 ° C. and 1100 ° C. in the range from 0 to 1000 h is shown for the alloys mentioned. Comparing the curves, the superiority of the alloy according to the invention is particularly evident in the case of the high temperatures (1000 ° C.) and the long removal times.
  • nickel-base superalloys with higher C and B contents (max. 750 ppm C and max. 400 ppm B) selected according to claim 1 of the invention.
  • the components produced from it can also be conventional to water.

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  • 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)
  • Golf Clubs (AREA)
  • Conductive Materials (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (3)

  1. Superalliage à base de nickel, caractérisé par la composition chimique suivante (données en % en poids):
    7,7 à 8,3 de Cr,
    5,0 à 5,25 de Co,
    2,0 à 2,1 de Mo,
    7,8 à 8,3 de W,
    5,8 à 6,1 de Ta,
    4,9 à 5,1 de Al,
    1,3 à 1,4 de Ti,
    0,11 à 0,15 de Si,
    0,11 à 0,15 de Hf,
    200 à 750 ppm de C et
    50 à 400 ppm de B,
    le solde étant constitué de nickel et d'impuretés dues à la fabrication.
  2. Superalliage à base de nickel selon la revendication 1, en particulier pour fabriquer des composants monocristallins, caractérisé par la composition chimique suivante (données en % en poids):
    7,7 à 8,3 de Cr,
    5,0 à 5,25 de Co,
    2,0 à 2,1 de Mo,
    7,8 à 8,3 de W,
    5,8 à 6,1 de Ta,
    4,9 à 5,1 de Al,
    1,3 à 1,4 de Ti,
    0,11 à 0,15 de Si,
    0,11 à 0,15 de Hf,
    200 à 750 ppm de C et
    50 à 400 ppm de B,
    le solde étant constitué de nickel et d'impuretés dues à la fabrication.
  3. Superalliage à base de nickel selon la revendication 2, caractérisé par la composition chimique suivante (données en % en poids):
    7,7 de Cr,
    5,1 de Co,
    2,0 de Mo,
    7,8 de W,
    5,8 de Ta,
    5,0 de Al,
    1,4 de Ti,
    0,12 de Si,
    0,12 de Hf,
    200 ppm de C et
    50 ppm B,
    le solde étant constitué de nickel et d'impuretés dues à la fabrication.
EP03100776A 2002-04-30 2003-03-26 Superalliage à base de Nickel Expired - Lifetime EP1359231B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00745/02A CH695497A5 (de) 2002-04-30 2002-04-30 Nickel-Basis-Superlegierung.
CH7452002 2002-04-30

Publications (2)

Publication Number Publication Date
EP1359231A1 EP1359231A1 (fr) 2003-11-05
EP1359231B1 true EP1359231B1 (fr) 2005-10-19

Family

ID=28796666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03100776A Expired - Lifetime EP1359231B1 (fr) 2002-04-30 2003-03-26 Superalliage à base de Nickel

Country Status (7)

Country Link
US (1) US6740292B2 (fr)
EP (1) EP1359231B1 (fr)
JP (1) JP4326830B2 (fr)
AT (1) ATE307219T1 (fr)
CH (1) CH695497A5 (fr)
DE (1) DE50301388D1 (fr)
ES (1) ES2250826T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009032144A1 (de) 2008-07-25 2010-01-28 Alstom Technology Ltd. Schutzrohre für Thermoelemente
EP2354261A1 (fr) 2010-02-05 2011-08-10 Alstom Technology Ltd Superalliage à base de nickel ayant un comportement de dégradation amélioré
RU2525952C2 (ru) * 2009-07-09 2014-08-20 Альстом Текнолоджи Лтд. Жаропрочный сплав на основе никеля

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2586974C (fr) * 2004-11-18 2013-06-25 Alstom Technology Ltd Superalliage a base de nickel
SE528807C2 (sv) * 2004-12-23 2007-02-20 Siemens Ag Komponent av en superlegering innehållande palladium för användning i en högtemperaturomgivning samt användning av palladium för motstånd mot väteförsprödning
US20060182649A1 (en) * 2005-02-16 2006-08-17 Siemens Westinghouse Power Corp. High strength oxidation resistant superalloy with enhanced coating compatibility
US20060219329A1 (en) * 2005-03-29 2006-10-05 Honeywell International, Inc. Repair nickel-based superalloy and methods for refurbishment of gas turbine components
EP1900839B1 (fr) * 2006-09-07 2013-11-06 Alstom Technology Ltd Procédé pour le traitement thermique de superalliages à base de Ni
JP5439822B2 (ja) 2009-01-15 2014-03-12 独立行政法人物質・材料研究機構 Ｎｉ基単結晶超合金
US20100254822A1 (en) * 2009-03-24 2010-10-07 Brian Thomas Hazel Super oxidation and cyclic damage resistant nickel-base superalloy and articles formed therefrom
US20110076179A1 (en) * 2009-03-24 2011-03-31 O'hara Kevin Swayne Super oxidation and cyclic damage resistant nickel-base superalloy and articles formed therefrom
US8449262B2 (en) * 2009-12-08 2013-05-28 Honeywell International Inc. Nickel-based superalloys, turbine blades, and methods of improving or repairing turbine engine components
WO2013167513A1 (fr) 2012-05-07 2013-11-14 Alstom Technology Ltd Procédé de fabrication d'éléments en superalliages monocristallins (sx) ou solidifiés de manière directionnelle (ds)
US20160214350A1 (en) 2012-08-20 2016-07-28 Pratt & Whitney Canada Corp. Oxidation-Resistant Coated Superalloy
JP6267890B2 (ja) * 2013-08-07 2018-01-24 三菱日立パワーシステムズ株式会社 Ｎｉ基鋳造超合金および該Ｎｉ基鋳造超合金からなる鋳造物
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
GB201615496D0 (en) 2016-09-13 2016-10-26 Rolls Royce Plc Nickel-based superalloy and use thereof

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US4461659A (en) * 1980-01-17 1984-07-24 Cannon-Muskegon Corporation High ductility nickel alloy directional casting of parts for high temperature and stress operation
CA1212020A (fr) * 1981-09-14 1986-09-30 David N. Duhl Elements mineurs d'apport aux monocristaux pour ameliorer leur resistance a l'oxydation
FR2557598B1 (fr) * 1983-12-29 1986-11-28 Armines Alliage monocristallin a matrice a base de nickel
US4643782A (en) 1984-03-19 1987-02-17 Cannon Muskegon Corporation Single crystal alloy technology
US4677035A (en) * 1984-12-06 1987-06-30 Avco Corp. High strength nickel base single crystal alloys
US4885216A (en) * 1987-04-03 1989-12-05 Avco Corporation High strength nickel base single crystal alloys
US4719080A (en) * 1985-06-10 1988-01-12 United Technologies Corporation Advanced high strength single crystal superalloy compositions
GB2234521B (en) * 1986-03-27 1991-05-01 Gen Electric Nickel-base superalloys for producing single crystal articles having improved tolerance to low angle grain boundaries
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
DE69701900T2 (de) * 1996-02-09 2000-12-07 Hitachi Metals, Ltd. Hochfeste Superlegierung auf Nickelbasis für gerichtet erstarrte Giesteilen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009032144A1 (de) 2008-07-25 2010-01-28 Alstom Technology Ltd. Schutzrohre für Thermoelemente
RU2525952C2 (ru) * 2009-07-09 2014-08-20 Альстом Текнолоджи Лтд. Жаропрочный сплав на основе никеля
EP2354261A1 (fr) 2010-02-05 2011-08-10 Alstom Technology Ltd Superalliage à base de nickel ayant un comportement de dégradation amélioré
US8696980B2 (en) 2010-02-05 2014-04-15 Alstom Technology Ltd Nickel-base superalloy with improved degradation behavior

Also Published As

Publication number Publication date
JP4326830B2 (ja) 2009-09-09
ES2250826T3 (es) 2006-04-16
JP2004027361A (ja) 2004-01-29
ATE307219T1 (de) 2005-11-15
EP1359231A1 (fr) 2003-11-05
US6740292B2 (en) 2004-05-25
US20040005238A1 (en) 2004-01-08
DE50301388D1 (de) 2006-03-02
CH695497A5 (de) 2006-06-15

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