EP1007753B1 - Verfahren zum herstellen einer haftschicht für eine wärmedämmschicht - Google Patents
Verfahren zum herstellen einer haftschicht für eine wärmedämmschicht Download PDFInfo
- 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
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Classifications
-
- 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)
Description
- Fig. 1
- ein Schliffbild der Schicht vor dem Alitieren und
- Fig. 2
- ein Schliffbild der Schicht nach dem Alitieren.
Claims (9)
- Verfahren zum Herstellen einer Haftschicht für eine Wärmedämmschicht, die auf ein Bauteil aufgebracht wird, gekennzeichnet durch die Schrittea) Herstellen eines Schlickers durch Mischen wenigstens eines der Elemente Cr, Ni oder Ce enthaltenden Pulvers mit einem Bindemittel,b) Auftragen des Schlickers auf das Bauteil,c) Trocknen des Schlickers bei Temperaturen von Raumtemperatur bis 300 °C, undd) Alitieren der Schlickerschicht, wobei das Verfahren so gesteuert wird, daß die Haftschicht eine Struktur mit einer Korngröße kleiner als 75 µm und einem Hohlraumanteil von 0 bis 40% aufweist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Schlicker mit einem Pulver aus MCrAIY hergestellt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Pulver mit einer Korngrößenverteilung von 5 bis 120 µm vorliegt.
- Verfahren nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß das Auftragen durch Spritzen, Pinseln oder Tauchen erfolgt.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Bauteil aus einer Legierung auf Nickel- oder Kobaltbasis besteht.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Trocknen über 0,5 - 4 Stunden durchgeführt wird.
- Verfahren nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Schlickerschicht vor dem Alitieren bei Temperaturen von 750 bis 1200 °C in Argon oder Vakuum wärmebehandelt wird.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß das Wärmebehandeln über 1 - 6 Stunden durchgeführt wird.
- Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Alitieren bei Temperaturen zwischen 800 bis 1200 °C und einer Dauer von 1 bis 12 Stunden durchgeführt wird.
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 (de) | 1998-06-03 | 1999-05-31 | Verfahren zum herstellen einer haftschicht für eine wärmedämmschicht |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1007753A1 EP1007753A1 (de) | 2000-06-14 |
EP1007753B1 true EP1007753B1 (de) | 2002-04-03 |
Family
ID=7869775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99936366A Expired - Lifetime EP1007753B1 (de) | 1998-06-03 | 1999-05-31 | Verfahren zum herstellen einer haftschicht für eine wärmedämmschicht |
Country Status (6)
Country | Link |
---|---|
US (1) | US6709711B1 (de) |
EP (1) | EP1007753B1 (de) |
JP (1) | JP4469083B2 (de) |
DE (2) | DE19824792B4 (de) |
ES (1) | ES2176003T3 (de) |
WO (1) | WO1999063126A1 (de) |
Families Citing this family (15)
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 (de) * | 2000-02-11 | 2001-08-16 | General Electric Company | Reparierbare Diffusionsaluminidbeschichtungen |
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)
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 |
-
1998
- 1998-06-03 DE DE19824792A patent/DE19824792B4/de not_active Expired - Fee Related
-
1999
- 1999-05-31 ES ES99936366T patent/ES2176003T3/es not_active Expired - Lifetime
- 1999-05-31 WO PCT/DE1999/001598 patent/WO1999063126A1/de active IP Right Grant
- 1999-05-31 JP JP2000552316A patent/JP4469083B2/ja not_active Expired - Fee Related
- 1999-05-31 DE DE59901109T patent/DE59901109D1/de not_active Expired - Lifetime
- 1999-05-31 US US09/485,082 patent/US6709711B1/en not_active Expired - Lifetime
- 1999-05-31 EP EP99936366A patent/EP1007753B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59901109D1 (de) | 2002-05-08 |
DE19824792B4 (de) | 2005-06-30 |
JP2002517608A (ja) | 2002-06-18 |
ES2176003T3 (es) | 2002-11-16 |
EP1007753A1 (de) | 2000-06-14 |
DE19824792A1 (de) | 1999-12-16 |
WO1999063126A1 (de) | 1999-12-09 |
US6709711B1 (en) | 2004-03-23 |
JP4469083B2 (ja) | 2010-05-26 |
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