WO2003040419A1 - Procede de production d'un superalliage a base de nickel - Google Patents

Procede de production d'un superalliage a base de nickel Download PDF

Info

Publication number
WO2003040419A1
WO2003040419A1 PCT/IB2002/004619 IB0204619W WO03040419A1 WO 2003040419 A1 WO2003040419 A1 WO 2003040419A1 IB 0204619 W IB0204619 W IB 0204619W WO 03040419 A1 WO03040419 A1 WO 03040419A1
Authority
WO
WIPO (PCT)
Prior art keywords
phase
nickel
degradation
room temperature
lattice
Prior art date
Application number
PCT/IB2002/004619
Other languages
German (de)
English (en)
Inventor
Mohamed Nazmy
Original Assignee
Alstom Technology Ltd
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 Ltd filed Critical Alstom Technology Ltd
Priority to EP02779820A priority Critical patent/EP1451382A1/fr
Publication of WO2003040419A1 publication Critical patent/WO2003040419A1/fr
Priority to US10/838,353 priority patent/US20040261921A1/en

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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/52—Alloys

Definitions

  • the invention relates to a method for developing a nickel-based superalloy, which is used to produce a single-crystalline or directionally solidified material body.
  • a whole series of nickel-based superalloys are known from the prior art, which are used for the production of single-crystalline or directionally solidified material bodies. Such material bodies are such.
  • the material strength at high temperatures can be maximized, which in turn can increase the inlet temperature of gas turbines, which leads to an increase in the efficiency of the gas turbine.
  • Nickel-based superalloys are, for example, the alloys CMSX-2, CMSX-4, CMSX-10, Rene N5, Rene N6, PWA 1484 and PWA 1483, the composition of which, for. B. from GL Erickson: Corrosion resistant Single Crystal Superalloys for Industrial Gas Turbine Application, International Gas & Turbine Aeroengine Congress & Exhibition, Orlando, Florida, June 2-June 5, 1997. Alloys of this type are subjected to a heat treatment after the casting process, in which, in a first solution-annealing step, the ⁇ '-phase which has precipitated out unevenly during the casting process is completely or partially dissolved. In a second heat treatment step, this phase is eliminated in a controlled manner. In order to achieve optimum properties, this precipitation heat treatment is carried out in such a way that fine, uniformly distributed particles of the ⁇ '-phase are formed in the ⁇ -phase.
  • the invention tries to avoid the disadvantages of the known prior art. It is based on the task of creating a method for developing nickel-based superalloys which is based on a new, simple concept.
  • the advantages of the invention are that it is relatively easy to develop nickel-based superalloys with an optimized degradation behavior using this method.
  • a high positive lattice offset ⁇ between the ⁇ -phase and the ⁇ '-phase is selected, the degradation of the properties is less pronounced, ie the Yield loss in the degraded state compared to the non-degraded state is only slight.
  • the numbers in front of the element symbols indicate the relative atomic fractions of the respective elements in the ⁇ '-phase.
  • the yield strength ⁇ o, 2 is determined for different nickel-based superalloys at room temperature in the degraded state as a function of the degradation parameter, and those alloys are selected which have the smallest difference in the yield strengths between the initial state and the degraded state, i.e. those alloys which have the highest possible yield strength values in the degraded state.
  • Fig. 1 shows the dependence of the yield strength after degradation at room temperature on the lattice offset between the ⁇ -phase and the ⁇ '-phase for different known nickel-based superalloys and
  • Fig. 2 shows the dependence of the yield strength at room temperature on the degradation parameter for different known nickel-based superalloys.
  • the lattice offset ⁇ between the ⁇ -phase and the ⁇ '-phase at room temperature is in the range of approx. - 0.24% to + 0.58% for the alloys examined. With an increase in the positive replacement, the yield strength ⁇ o , 2 also increases after degradation at room temperature. Of the alloys examined, alloy PW1480 has the highest positive lattice offset ⁇ between the ⁇ -phase and the ⁇ '-phase and consequently also the highest yield strength ⁇ 0.2 after degradation at room temperature.
  • the lattice constants of the ⁇ -phase a ⁇ and the ⁇ '-phase a ⁇ - were known per se according to the following (see P.
  • alloying elements B, Zr and C do not play a significant role in relation to the lattice offset, especially since they are only present in small amounts as trace elements.
  • the degradation behavior of the alloy can now be optimized according to the invention by setting the highest possible positive lattice offset ⁇ between the ⁇ -phase and the ⁇ '-phase by varying the composition.
  • a degradation parameter D was introduced for the nickel-based alloys, which is determined according to the following relationship:
  • the yield strength ⁇ o, 2 is then determined at room temperature after degradation as a function of the degradation parameter. 2, these values are plotted against one another for the alloys from Table 1. In order to optimize properties, the yield point at room temperature should be as high as possible for the various degradation parameters.
  • the alloy PW1480 which has a lattice offset ⁇ between the ⁇ -phase and the ⁇ '-phase of + 0.58%, best meets this requirement.
  • the alloy CMSX4 which with a lattice shift ⁇ between the ⁇ -phase and the ⁇ '-phase of ⁇ 0.24% is the most below the requirement of the invention, has, depending on the degradation parameter D, which is at least about 5000 KhMPa, the lowest values of the yield strength. This alloy should therefore be unsuitable in terms of degradation behavior.

Landscapes

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

Abstract

L'invention concerne un procédé de production d'un superalliage à base de nickel, composé de phases η et η', destiné à la fabrication de corps solides monocristallins ou solidifiés de façon ciblée. La présente invention est caractérisée en ce que les propriétés de superalliages à base de nickel, présentant une part volumique de phase η' d'au moins 50 %, sont optimisées après dégradation à température ambiante par choix de la composition de manière à obtenir une dislocation réticulaire (δ) maximale entre les phases η et η'. Ainsi, la limite élastique à température ambiante est relativement haute après dégradation, et la différence entre les limites élastiques avant et après dégradation reste faible.
PCT/IB2002/004619 2001-11-09 2002-11-05 Procede de production d'un superalliage a base de nickel WO2003040419A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02779820A EP1451382A1 (fr) 2001-11-09 2002-11-05 Procede de production d'un superalliage a base de nickel
US10/838,353 US20040261921A1 (en) 2001-11-09 2004-05-05 Method of developing a nickel-base superalloy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH20592001 2001-11-09
CH2059/01 2001-11-09

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/838,353 Continuation US20040261921A1 (en) 2001-11-09 2004-05-05 Method of developing a nickel-base superalloy

Publications (1)

Publication Number Publication Date
WO2003040419A1 true WO2003040419A1 (fr) 2003-05-15

Family

ID=4567342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/004619 WO2003040419A1 (fr) 2001-11-09 2002-11-05 Procede de production d'un superalliage a base de nickel

Country Status (4)

Country Link
US (1) US20040261921A1 (fr)
EP (1) EP1451382A1 (fr)
CN (1) CN100345990C (fr)
WO (1) WO2003040419A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113308654A (zh) * 2020-02-27 2021-08-27 南京理工大学 一种具有纳米结构和γ`相复合结构的镍基合金及其制备方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4449337B2 (ja) * 2003-05-09 2010-04-14 株式会社日立製作所 高耐酸化性Ｎｉ基超合金鋳造物及びガスタービン部品
WO2007006681A1 (fr) * 2005-07-12 2007-01-18 Alstom Technology Ltd Couche calorifuge ceramique
CN100430500C (zh) * 2005-11-18 2008-11-05 中国科学院金属研究所 一种低成本第三代镍基单晶高温合金
CN100494467C (zh) * 2006-08-16 2009-06-03 中国科学院金属研究所 一种定向凝固柱晶或单晶镍基高温合金修复或涂层方法
CN100557092C (zh) * 2007-12-17 2009-11-04 北京航空航天大学 采用籽晶法与螺旋选晶法组合制备Ni基单晶高温合金的方法
US9347124B2 (en) * 2011-11-07 2016-05-24 Siemens Energy, Inc. Hold and cool process for superalloy joining
GB201400352D0 (en) 2014-01-09 2014-02-26 Rolls Royce Plc A nickel based alloy composition
EP3042973B1 (fr) 2015-01-07 2017-08-16 Rolls-Royce plc Alliage de nickel
US9644504B2 (en) * 2015-03-17 2017-05-09 Caterpillar Inc. Single crystal engine valve
GB2539957B (en) 2015-07-03 2017-12-27 Rolls Royce Plc A nickel-base superalloy
CN112359303B (zh) * 2020-11-09 2021-08-24 中南大学 一种基于数据驱动镍基高温合金强度评估的方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218312A1 (fr) * 1985-08-29 1987-04-15 Natsuo Yukawa Diagramme pour l'indice de stabilité de phases d'alliage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1059712C (zh) * 1997-09-26 2000-12-20 冶金工业部钢铁研究总院 一种抗氧化镍基合金

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218312A1 (fr) * 1985-08-29 1987-04-15 Natsuo Yukawa Diagramme pour l'indice de stabilité de phases d'alliage

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; NATHAL, MICHAEL V. ET AL: "Influence of composition on the microstructure and mechanical properties of a nickel-base superalloy single crystal", XP002194791, retrieved from STN Database accession no. 101:96062 CA *
NASA TECH. MEMO. (1984), NAS-TM-83563, E-1942, NAS 1.15:83563, 11 PP. AVAIL.: NTIS FROM: SCI. TECH. AEROSP. REP. 1984, 22(8), ABSTR. NO. N84-17354, 1984 *
SPIEKERMAN P: "Legierungen - ein besonderes patentrechtliches Problem ?", MITTEILUNGEN DER DEUTSCHEN PATENTANWALTE, HEYMANN, KOLN,, DE, 1993, pages 178 - 190, XP002184688, ISSN: 0026-6884 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113308654A (zh) * 2020-02-27 2021-08-27 南京理工大学 一种具有纳米结构和γ`相复合结构的镍基合金及其制备方法

Also Published As

Publication number Publication date
EP1451382A1 (fr) 2004-09-01
CN100345990C (zh) 2007-10-31
US20040261921A1 (en) 2004-12-30
CN1585829A (zh) 2005-02-23

Similar Documents

Publication Publication Date Title
EP2402473B1 (fr) Procédé de fabrication d'un composant monocristallin constitué d'un superalliage à base de nickel
DE69903224T2 (de) Monokristalline Superlegierung auf Nickelbasis mit hoher Gamma-prime-phase
DE69017625T2 (de) Einkristalline Superlegierung auf Nickelbasis.
DE3023576C2 (fr)
DE69017574T2 (de) Hochfestes ermüdungsrissbeständiges Legierungswerkstück.
DE69330018T2 (de) Wärmebehandlung und verfahren zum reparieren eines superlegierungskörpers auf kobalt-basis
EP0914484B1 (fr) Superalliage a base de nickel
DE2749080A1 (de) Einkristallsuperlegierungsgegenstand auf nickelbasis und verfahren zu seiner herstellung
DE3030962A1 (de) Ein- und polykristalline legierung auf nickel- oder kobalt-basis.
DE68916414T2 (de) Titanaluminid-Legierungen.
EP2807281B1 (fr) Procédé de fabrication de pièces forgées dans un alliage tial et pièce forgée fabriquée par ce procédé
DE60203562T2 (de) Monokristalline Superlegierung auf Nickelbasis
WO2003040419A1 (fr) Procede de production d'un superalliage a base de nickel
DE112013003971T5 (de) Nickelbasierte einkristalline Superlegierung
DE60125059T2 (de) Nickelbasis-superlegierung zur anwendung im hochtemperatur- und hochbeanspruchungsbereich
EP1900839B1 (fr) Procédé pour le traitement thermique de superalliages à base de Ni
EP1359231B1 (fr) Superalliage à base de Nickel
EP1420075B1 (fr) Superalliage à base de nickel
EP2196550B1 (fr) Matériau à base de NiAl, résistant aux températures élevées et à l'oxydation
DE69503188T2 (de) Monocrystalline Superlegierung auf Nickelbasis mit guter Korrosionsbestandigkeit bei hohen Temperaturen
EP2354261B1 (fr) Superalliage à base de nickel ayant un comportement de dégradation amélioré
DE3542882C2 (fr)
DE69934158T2 (de) Verfahren und Herstellung einer gerichtet erstarrten Gusslegierung auf Nickelbasis
EP3091095A1 (fr) Superalliage à base de nickel sans rhénium à faible densité
EP2451986B2 (fr) Superalliage a base de nickel

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2002779820

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 10838353

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 20028222334

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 2002779820

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP