EP1007753B1 - Procede pour la production d'une couche adhesive destinee a une couche calorifuge - Google Patents

Procede pour la production d'une couche adhesive destinee a une couche calorifuge Download PDF

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Publication number
EP1007753B1
EP1007753B1 EP99936366A EP99936366A EP1007753B1 EP 1007753 B1 EP1007753 B1 EP 1007753B1 EP 99936366 A EP99936366 A EP 99936366A EP 99936366 A EP99936366 A EP 99936366A EP 1007753 B1 EP1007753 B1 EP 1007753B1
Authority
EP
European Patent Office
Prior art keywords
layer
component
slurry
powder
hours
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
EP99936366A
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German (de)
English (en)
Other versions
EP1007753A1 (fr
Inventor
Gerhard Wydra
Martin Thoma
Horst Pillhöfer
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.)
MTU Aero Engines AG
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MTU Aero Engines GmbH
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Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP1007753A1 publication Critical patent/EP1007753A1/fr
Application granted granted Critical
Publication of EP1007753B1 publication Critical patent/EP1007753B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/30—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes using a layer of powder or paste on the surface
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/34—Embedding in a powder mixture, i.e. pack cementation
    • C23C10/58—Embedding in a powder mixture, i.e. pack cementation more than one element being diffused in more than one step

Definitions

  • the invention relates to a method for producing an adhesive layer for a thermal insulation layer, which is applied to a component.
  • Thermally or mechanically stressed components are covered with protective layers, e.g. Wear protection layers or thermal insulation layers. Between one Such an outer layer and the component are generally provided with an adhesive layer. Such adhesive layers must have a certain roughness and surface topography for clinging to the outer layer.
  • the adhesive layers are e.g. with high thermal loads, metallic components, such as turbine blades, between the component and one Thermal insulation layer provided.
  • thermal insulation layers can be made from a Made of zirconium oxide with additions of calcium or magnesium oxide.
  • Diffusion layers which contain Al, Cr or Si are known as adhesive layers, which are manufactured using the so-called powder pack process or out of pack process become.
  • the disadvantages of the diffusion layers produced using these methods exist in their brittleness and the limited layer thicknesses of up to approx. 100 ⁇ m.
  • MCrAIY-based coating is by means of plasma spraying sprayed onto the component or by evaporation of the layer components evaporated onto the component in the electron beam.
  • Layer will be thick achieved up to approx. 300 ⁇ m.
  • Such processes are very technical in terms of production complex and expensive.
  • Other disadvantages are that the layers are geometric complicated components cannot be applied evenly, scattering in the layer composition occur and the layer elements when sprayed or vapor deposition.
  • JP 55-82761 A it is known to expose components of e.g. to protect a gas turbine by first using a binder-provided Ni powder is applied to the component and heat treated, then Cr by chemical Vapor deposition or Al can be introduced by a packing process and finally Pt, Pd or Rh are deposited and heat treated.
  • the object of the present invention is a method for manufacturing to create a layer of the type described in the introduction, which with the manufacturing technology is as simple and inexpensive to manufacture.
  • the advantage of the method is that it is mixed with a binder Powder is easily applied to the component to form a layer can be done without expensive processes such as plasma spraying or that electron beam evaporation is required. Those with this procedure
  • the layers produced have a comparatively fine-grained structure a grain size that is less than 75 microns.
  • the layer has a void portion from 0 to 40%.
  • the layer has improved thermal fatigue resistance as well as an advantageous expansion behavior that is fault tolerant against cracks.
  • additions of elements such as Y, evenly distributed and not oxidized.
  • the slip is made with a powder made of MCrAIY or an MCrAIY alloy, where M for at least one of the elements Ni, Co, Pt or Pd stands and also uses Hf or Ce instead of Y. can be.
  • the powder is preferably present with a grain size distribution of 5 to 120 ⁇ m.
  • the slip is preferably applied to the component by spraying, pinning or diving, which makes the process technically simple and can be carried out inexpensively.
  • This type of application makes it easy to Wise locally limited layers even on geometrically complex components muster.
  • the slip layer prior to the alitation at temperatures from 750 to 1200 ° C is heat treated in argon or vacuum, the heat treatment can be done over 1 - 6 hours to the slip layer to connect to the component by means of diffusion.
  • the final step Alit the slip layer at temperatures between 800 and 1200 ° C and one Duration of 1 - 12 hours.
  • the alitation serves for diffusion bonding and compacting the layer and is made in a conventional method such as e.g. in the Powder pack process, carried out with the introduction of Al.
  • the Al diffuses in the layer and in the base material of the component.
  • the layer is preferably an adhesive layer on which a thermal barrier coating is applied as an outer layer or protective layer, which is done in the usual way Plasma spraying or electron beam evaporation can be done.
  • a slip is first used for the production MCrAlY powder in a suspension with a common inorganic binder mixed.
  • the grain sizes of the powder particles are between 5 and 120 ⁇ m. there a flowable, sprayable mass forms.
  • the viscosity of this mass can be e.g. by the grain size of the powder particles used.
  • the M stands for nickel or cobalt or an alloy of the two elements.
  • the proportion of aluminum and chrome is chosen as high as possible in order to protect it against Exploit oxidation, which relies on the chrome and aluminum at high Form temperatures as protective films oxides.
  • the slip is applied with a brush to form a layer metallic component, such as a turbine guide vane made of a nickel-based alloy, applied.
  • a layer metallic component such as a turbine guide vane made of a nickel-based alloy
  • the thickness and local spread of the layer can be determined in this way influence the application in a simple way.
  • the application could e.g. also done with a spray gun.
  • the slurry in suspension is at room temperature dried over about 1.5 hours.
  • the dried layer is then heat-treated in argon at 1000 ° C. for one hour, to connect the layer with the material of the turbine guide vane to achieve by diffusion. Then the layer is at about 1100 ° C Alitated for 4 hours using a standard procedure to connect to the reinforce metallic component by means of diffusion and compact the layer. Al enters the layer and the base material of the metallic component and thus ensures both a firm connection of the layer with the component also for a connection of the spherical MCrAlY particles to each other. Also sinter the MCrAIY particles at least partially together.
  • the layer 1 shows a layer 2, which has been applied to a metallic component 1 and is heat-treated but has not yet been alitated.
  • the layer 2 is the spherical structure the MCrAlY particles as well as the cavities in between detect.
  • FIG. 2 shows the component 1 and the layer 2 after the alitation step.
  • the MCrAlY particles are sintered together.
  • the layer produced in this way has a significantly improved thermal fatigue resistance compared to (adhesive) layers produced in a conventional manner on.
  • the active elements like Y evenly distributed and not oxidized.
  • the layer produced in this way can be used as an adhesive layer, finally a thermal barrier coating by plasma spraying or another common method is applied.
  • the layer can also be easily as high quality Use hot gas corrosion layer without an additional outer protective layer is to be brought up.
  • the properties of corrosion and oxidation resistant Layer can be varied by extending the alitation process or improve.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Procédé pour fabriquer une couche adhésive pour une couche d'isolation thermique, qui est disposée sur un composant, caractérisé par les étapes suivantes
    a) préparation d'une suspension par mélange d'une poudre contenant au moins l'un des éléments Cr, Ni ou Ce, avec un liant,
    b) dépôt de la suspension sur le composant,
    c) séchage de la suspension à des températures allant de la température ambiante jusqu'à 300°C, et
    d) calorisation de la couche de suspension, le procédé étant réglé de telle sorte que la couche adhésive possède une structure ayant une taille de grains inférieure à 75 µm et un pourcentage de vide compris entre 0 et 40 %.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on prépara la suspension avec une poudre de MCrAlY.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la poudre est présente avec une distribution granulométrique comprise entre 5 et 120 µm.
  4. Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'application s'effectue par projection, au pinceau ou par immersion.
  5. Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que le composant est constitué d'un alliage à base de nickel ou de cobalt.
  6. Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que le séchage est exécuté pendant 0,5-4 heures.
  7. Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que la couche de la suspension est soumise à un traitement thermique avant la calorisation, à des températures de 750 à 1200°C dans de l'argon ou sous vide.
  8. Procédé selon la revendication 7, caractérisé en ce que le traitement thermique est exécuté pendant 1-6 heures.
  9. Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que la calorisation est exécutée à des températures comprises entre 800 et 1200°C pendant une durée comprise entre 1 et 12 heures.
EP99936366A 1998-06-03 1999-05-31 Procede pour la production d'une couche adhesive destinee a une couche calorifuge Expired - Lifetime EP1007753B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19824792A DE19824792B4 (de) 1998-06-03 1998-06-03 Verfahren zum Herstellen einer Haftschicht für eine Wärmedämmschicht
DE19824792 1998-06-03
PCT/DE1999/001598 WO1999063126A1 (fr) 1998-06-03 1999-05-31 Procede pour la production d'une couche adhesive destinee a une couche calorifuge

Publications (2)

Publication Number Publication Date
EP1007753A1 EP1007753A1 (fr) 2000-06-14
EP1007753B1 true EP1007753B1 (fr) 2002-04-03

Family

ID=7869775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99936366A Expired - Lifetime EP1007753B1 (fr) 1998-06-03 1999-05-31 Procede pour la production d'une couche adhesive destinee a une couche calorifuge

Country Status (6)

Country Link
US (1) US6709711B1 (fr)
EP (1) EP1007753B1 (fr)
JP (1) JP4469083B2 (fr)
DE (2) DE19824792B4 (fr)
ES (1) ES2176003T3 (fr)
WO (1) WO1999063126A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6228510B1 (en) * 1998-12-22 2001-05-08 General Electric Company Coating and method for minimizing consumption of base material during high temperature service
US6485780B1 (en) * 1999-08-23 2002-11-26 General Electric Company Method for applying coatings on substrates
DE19946650C2 (de) * 1999-09-29 2003-11-27 Mtu Aero Engines Gmbh Verfahren zum Herstellen einer Panzerung für ein metallisches Bauteil
EP1123987A1 (fr) * 2000-02-11 2001-08-16 General Electric Company Revêtements réparables d'aluminures à diffusion
FR2813318B1 (fr) 2000-08-28 2003-04-25 Snecma Moteurs Formation d'un revetement aluminiure incorporant un element reactif, sur un substrat metallique
DE102004034410A1 (de) * 2004-07-16 2006-02-02 Mtu Aero Engines Gmbh Schutzschicht zum Aufbringen auf ein Substrat und Verfahren zur Herstellung einer Schutzschicht
US7316057B2 (en) * 2004-10-08 2008-01-08 Siemens Power Generation, Inc. Method of manufacturing a rotating apparatus disk
JP2007262447A (ja) * 2006-03-27 2007-10-11 Mitsubishi Heavy Ind Ltd 耐酸化膜及びその形成方法、遮熱コーティング、耐熱部材、及びガスタービン
DE102009008510A1 (de) * 2009-02-11 2010-08-12 Mtu Aero Engines Gmbh Beschichtung und Verfahren zum Beschichten eines Werkstücks
DE102013207457B4 (de) 2013-04-24 2017-05-18 MTU Aero Engines AG Verfahren zur Herstellung einer Hochtemperaturschutzbeschichtung
US9587302B2 (en) * 2014-01-14 2017-03-07 Praxair S.T. Technology, Inc. Methods of applying chromium diffusion coatings onto selective regions of a component
DE102015213555A1 (de) * 2015-07-20 2017-03-09 MTU Aero Engines AG Dichtrippenpanzerung und Verfahren zur Herstellung derselben
DE102015221482A1 (de) 2015-11-03 2017-05-04 MTU Aero Engines AG Diffusionsschichten
DE102016009854A1 (de) * 2016-08-12 2018-02-15 Dechema Forschungsinstitut Stiftung Bürgerlichen Rechts Langzeitstabiler, lagerfähiger Schlicker für umweltfreundliche Diffusionsbeschichtungen
DE102021127344A1 (de) * 2021-10-21 2023-04-27 MTU Aero Engines AG Verfahren zum Beschichten eines Bauteils eines Flugtriebwerks mit einer Verschleißschutzschicht und Bauteil für ein Flugtriebwerk mit wenigstens einer Verschleißschutzschicht

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720537A (en) * 1970-11-25 1973-03-13 United Aircraft Corp Process of coating an alloy substrate with an alloy
GB1427054A (en) 1973-09-19 1976-03-03 Rolls Royce Method of and mixture for aluminishing a metal surface
IT1083665B (it) 1977-07-14 1985-05-25 Fiat Spa Procedimento per la realizzazione di rivestimenti per alte temperature su metalli e leghe metalliche
JPS5582761A (en) * 1978-12-15 1980-06-21 Hitachi Ltd Coating method for platinum group metal onto cobalt alloy
JPS5754282A (ja) * 1980-09-17 1982-03-31 Mitsubishi Heavy Ind Ltd Tainetsugokinnohyomenshorihoho
JPS58177401A (ja) * 1982-04-12 1983-10-18 Sumitomo Metal Ind Ltd ニツケル，クロム合金被覆法
JPS6067652A (ja) * 1983-09-20 1985-04-18 Asia Kogyo Kk 合金層の形成方法
US4910092A (en) * 1986-09-03 1990-03-20 United Technologies Corporation Yttrium enriched aluminide coating for superalloys
DE4226272C1 (de) * 1992-08-08 1994-02-10 Mtu Muenchen Gmbh Verfahren zur Behandlung von MCrAlZ-Schichten und mit dem Verfahren hergestellte Bauteile
GB9426257D0 (en) * 1994-12-24 1995-03-01 Rolls Royce Plc Thermal barrier coating for a superalloy article and method of application
US5759142A (en) * 1995-01-20 1998-06-02 Bender Machine, Inc. Coated roll for aluminizing processes

Also Published As

Publication number Publication date
EP1007753A1 (fr) 2000-06-14
US6709711B1 (en) 2004-03-23
DE59901109D1 (de) 2002-05-08
ES2176003T3 (es) 2002-11-16
JP4469083B2 (ja) 2010-05-26
WO1999063126A1 (fr) 1999-12-09
JP2002517608A (ja) 2002-06-18
DE19824792A1 (de) 1999-12-16
DE19824792B4 (de) 2005-06-30

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