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EP1878533B1 - Superlegierungspulver - Google Patents

Superlegierungspulver Download PDF

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Publication number
EP1878533B1
EP1878533B1 EP07117338A EP07117338A EP1878533B1 EP 1878533 B1 EP1878533 B1 EP 1878533B1 EP 07117338 A EP07117338 A EP 07117338A EP 07117338 A EP07117338 A EP 07117338A EP 1878533 B1 EP1878533 B1 EP 1878533B1
Authority
EP
European Patent Office
Prior art keywords
powder
superalloy
mixture
elements
sintering
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.)
Active
Application number
EP07117338A
Other languages
English (en)
French (fr)
Other versions
EP1878533A2 (de
EP1878533A3 (de
Inventor
Pascal Etuve
Justine Menuey
Didier Ribot
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Publication of EP1878533A2 publication Critical patent/EP1878533A2/de
Publication of EP1878533A3 publication Critical patent/EP1878533A3/de
Application granted granted Critical
Publication of EP1878533B1 publication Critical patent/EP1878533B1/de
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Classifications

    • 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
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0433—Nickel- or cobalt-based alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • 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
    • C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
    • 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%
    • 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
    • C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
    • 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
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Definitions

  • the subject of the invention is a superalloy powder.
  • the presence of melting elements in the second powder makes it possible to lower the melting point thereof and to work at a temperature at which the second powder is liquid, while the first powder remains in the solid state.
  • the aim of the invention is to propose an alternative to existing solutions, offering good results in terms of homogeneous distribution of the melting element or elements within the powder, which results, in particular, in the absence of deformation of the parts made by sintering.
  • the subject of the invention is a superalloy powder according to claim 1.
  • the powder of the invention It is not necessary to mix the powder of the invention with another powder as in FR 2 822 741 because the powder of the invention already has the final composition which is needed, both in terms of constituent elements of the superalloy and in terms of element (s) melting (s).
  • the proportion of B and, optionally, Si is adapted for use of the powder without prior mixing step with another powder (as explained above, the proportion of melting elements has a determining influence on the behavior of the powder during the heat treatment thereof).
  • said melting element is an integral part of the superalloy: it is not chemically deposited or mechanically inlaid on the surface of the superalloy grains, as in the known techniques mentioned above.
  • the constituent elements of the superalloy including the melting element, are present in each grain of powder and, consequently, are distributed within the powder in a perfectly homogeneous manner. This avoids the problems of localized porosity and supercooling related to a too low proportion, or too important, element melting in some regions of the powder.
  • a technique for atomizing a precursor liquid mixture comprising the elements of said superalloy and said at least one melting element.
  • the powders according to the invention were produced using an atomization technique from a precursor liquid mixture comprising the elements of the superalloy (Ni, Co, Cr ...) and at least one melting element (B and, optionally , Yes).
  • This liquid mixture was obtained by melting alloys by induction, under vacuum, in a crucible equipped with a burette allowing the liquid mixture to flow at a low flow rate. Jets of inert gases under high pressure, flowing at a speed close to that of the sound, are used to spray the mixture leaving the burette. The mixture then disintegrates into fine droplets which then take a spheroidal shape under the effect of the surface tension and cool very rapidly in an atomization chamber.
  • the inert gases used are, for example, argon or nitrogen.
  • the enriched superalloy essentially comprises: 17.2 to 22.2% of Cr; 26.75 to 30% Ni; 0 to 1.5% Si; 0.8 to 1% of B; 0.1 to 0.5% C; 0 to 0.37% Zr; 0 to 3% of Ta; and a balance in Co.
  • Cobalt base powders of this type may comprise impurities, such as phosphorus P, in minute proportions, for example of the order of 0.04% or less.
  • Table 1 below gives the compositions of examples of powders (a) and (b), which are not claimed, and of an example of powder (c) corresponding to a type of superalloy powder according to the invention. .
  • Table 1 Ex Composition in% by weight Or Co Cr MB al Ti Yes B VS Zr P Your (at) based 16.4 8.2 2.6 2.25 1.95 0.8 0.5 0 0 0 0 19.6 12.8 4.4 3.3 2.9 2 1.3 0.06 0.05 0.01 0 (B) based 14 12 3.35 2.9 2.5 0 0.4 0 0 0 0 16 15.3 4.7 3.5 3.1 0 1 0.06 0.06 0.02 0 (vs) 26.75 based 17.2 0 0 0 0 0.8 0.1 0 0 - 30 22.2 0 0 0 1.5 1 0.5 0.37 0.04 -
  • superalloy powder can be used in the implementation of any solder-diffusion process applied during the manufacture or repair of nickel-based alloy parts, cobalt, especially in the aeronautical field. It can be an assembly of parts, a filling of cracks, or cracks, on part or a reload of part surface to correct a superficial defect or to restore certain properties or geometrical dimensions of that -this.
  • the introduction of the filler powder can be carried out in different ways.
  • the raw powder can be used mixed with a cementum, for example of the Nicrobraz 320 type. It will be noted that the mixture obtained can be used in the form of cords.
  • a supply can be made in the form of a compact filler.
  • Said compact filler is obtained from the powder either by a manufacturing technique ensuring a sintering compaction thereof, or by means of injection molding techniques of metal powders.
  • the figure 1 shows an example of a compact filler piece made by sintering from a superalloy powder according to the invention. This is a plate intended to be used to reload the surface of a room.
  • This plate was made from a powder of the aforementioned first type, according to the following steps: oven drying of the raw powder; distribution thereof in a mold adapted to the desired size and sintered thickness; placing the mold in an oven to heat treat it.
  • heat treatment one can perform (for an oven pressure of 0.13 Pa) a gradual increase in temperature up to 1160 ° C, then a hold at this temperature for about 10 min, followed by a gradual cooling.
  • the invention makes it possible to avoid the management and storage of several references of powders, and to avoid any step of mixing powders, critical from a hygiene and safety point of view.
  • the sintering temperature is significantly reduced. relative to the temperature required for a two-component mixture. Thanks to the homogeneity of the powder and the reduction of the sintering temperature, a noticeable improvement in the homogeneity of the properties of the sintered plate and a good preservation of the dimensions and the shape thereof, in particular a respect of the wished dimensions and a good flatness.
  • the figure 2 illustrates, conversely, the deformation problems that can be encountered during the sintering of a two-component mixture.
  • the homogeneity of the superalloy powder of the invention also results in an improvement of the mechanical properties of the zone reloaded with said plate.
  • the powder is mixed with a binder in a kneader.
  • the binder includes, for example, polypropylene, ethylene, vinyl acetate and paraffin.
  • the mixing time must be such as to obtain a plasticization of the mixture.
  • the mixture is then cooled before being ground.
  • the granulates thus obtained can be introduced into the hopper of a press and the injection can be carried out in molds of dimensions specific to the compact part to be produced.
  • the mold blank is then chemically untied and the blank is sintered.
  • Table 2 Example Use a Use b Use c (at) Yes Yes Yes (B) Yes Yes (vs) Yes Yes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Claims (6)

  1. Superlegierungspulver, in welchem die Superlegierung angereichert ist mit wenigstens einem Schmelzelement : B, derart, daß dieses jedes Pulverkörnchen wenigstens ein Schmelzelement umfaßt, das verteilt ist unter den anderen Superlegierungselementen und, in welchem die Superlegierung in Gewichtsprozenten zusammengesetzt ist aus:
    - 17,2 bis 23% Cr,
    - 26,75 bis 32,4% Ni,
    - 0 bis 2,5% Si,
    - 0 bis 0,5% C,
    - 0 bis 0,4% Zr,
    - 0 bis 3% Ta,
    - 0 bis 0,5% Y,
    - 0 bis 8% Al,
    - 0,8 bis 1,2% B, und
    - ein Rest an Co.
  2. Superlegierungspulver nach Anspruch 1, in welchem die mit einem Schmelzelement angereicherte Superlegierung in Gewichtsprozenten zusammengesetzt ist aus:
    - 17,2 bis 22,2% Cr,
    - 26,75 bis 30% Ni,
    - 0 bis 1,5% Si,
    - 0,8 bis 1 % B,
    - 0,1 bis 0,5% C,
    - 0 bis 0,37% Zr,
    - 0 bis 3% Ta, und
    - ein Rest an Co.
  3. Superlegierungspulver nach Anspruch 1 oder 2, erhalten durch Zerstäubung eines Flüssiggemisches, das zusammengesetzt ist aus Elementen der Superlegierung und dem wenigstens einem Schmelzelement.
  4. Verwendung eines Superlegierungspulvers nach einem der Ansprüche 1 bis 3 für die Ausführung von Teilen, insbesondere Platten, durch Sintern.
  5. Verwendung eines Superlegierungspulvers nach einem der Ansprüche 1 bis 3, zugemischt zu einem Zement.
  6. Verwendung eines Superlegierungspulvers nach einem der Ansprüche 1 bis 3 als Bestandteil eines Gemisches zum Metallpulver-Spritzguss.
EP07117338A 2005-05-26 2006-05-24 Superlegierungspulver Active EP1878533B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0505299A FR2886182B1 (fr) 2005-05-26 2005-05-26 Poudre de superalliage
EP06114507A EP1728586B1 (de) 2005-05-26 2006-05-24 Superlegierungspulver

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP06114507.4 Division 2006-05-24
EP06114507A Division EP1728586B1 (de) 2005-05-26 2006-05-24 Superlegierungspulver

Publications (3)

Publication Number Publication Date
EP1878533A2 EP1878533A2 (de) 2008-01-16
EP1878533A3 EP1878533A3 (de) 2008-04-16
EP1878533B1 true EP1878533B1 (de) 2010-07-07

Family

ID=35530780

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07117338A Active EP1878533B1 (de) 2005-05-26 2006-05-24 Superlegierungspulver
EP06114507A Active EP1728586B1 (de) 2005-05-26 2006-05-24 Superlegierungspulver

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06114507A Active EP1728586B1 (de) 2005-05-26 2006-05-24 Superlegierungspulver

Country Status (7)

Country Link
US (1) US20070051199A1 (de)
EP (2) EP1878533B1 (de)
JP (1) JP2006328535A (de)
BR (1) BRPI0601917A (de)
CA (1) CA2548610A1 (de)
DE (2) DE602006015298D1 (de)
FR (1) FR2886182B1 (de)

Families Citing this family (13)

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JP2009285664A (ja) * 2008-05-27 2009-12-10 Toshiba Corp ロウ付け補修材料およびその材料を使用したロウ付け補修方法
EP2182084A1 (de) * 2008-11-04 2010-05-05 Siemens Aktiengesellschaft Schweisszusatzwerkstoff, Verwendung des Schweisszusatzwserkstoffes und Bauteil
CN102387870B (zh) * 2009-03-24 2015-05-20 阿尔斯托姆科技有限公司 用于底材的无铬涂层
US20120128526A1 (en) * 2010-11-24 2012-05-24 Kulkarni Anand A Metallic Bondcoat or Alloy with a High y/y' Transition Temperature and a Component
RU2679503C2 (ru) * 2013-12-24 2019-02-11 Либурди Инжиниринг Лимитед Дисперсно-упрочненный сварочный материал на основе никеля для сварки плавлением жаропрочных сплавов
JP6372512B2 (ja) * 2016-04-06 2018-08-15 セイコーエプソン株式会社 粉末冶金用金属粉末、コンパウンド、造粒粉末、焼結体および耐熱部品
GB2565063B (en) 2017-07-28 2020-05-27 Oxmet Tech Limited A nickel-based alloy
CN107779674A (zh) * 2017-11-29 2018-03-09 西华大学 一种镍基合金粉末及其制备方法
US20210308809A1 (en) * 2018-05-01 2021-10-07 Siemens Energy, Inc. Nickel based superalloy braze filler
GB2584654B (en) 2019-06-07 2022-10-12 Alloyed Ltd A nickel-based alloy
FR3097876B1 (fr) * 2019-06-28 2022-02-04 Safran Poudre de superalliage, piece et procede de fabrication de la piece a partir de la poudre
CN110512119B (zh) * 2019-09-29 2021-06-01 湖南英捷高科技有限责任公司 一种注射成形镍基合金粉、注射成形方法及镍基合金制品
CN113234963B (zh) * 2021-05-19 2021-12-17 沈阳航空航天大学 室温以及低温环境用镍铬基超合金及其制备方法

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Also Published As

Publication number Publication date
BRPI0601917A (pt) 2007-02-13
EP1878533A2 (de) 2008-01-16
EP1728586A2 (de) 2006-12-06
JP2006328535A (ja) 2006-12-07
US20070051199A1 (en) 2007-03-08
EP1878533A3 (de) 2008-04-16
CA2548610A1 (fr) 2006-11-26
FR2886182B1 (fr) 2009-01-30
DE602006015298D1 (de) 2010-08-19
EP1728586A3 (de) 2007-04-04
DE602006001897D1 (de) 2008-09-04
FR2886182A1 (fr) 2006-12-01
EP1728586B1 (de) 2008-07-23

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