WO2005052211A1 - Procede pour produire un revetement resistant a la corrosion et a l'oxydation et composant presentant un tel revetement - Google Patents

Procede pour produire un revetement resistant a la corrosion et a l'oxydation et composant presentant un tel revetement Download PDF

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Publication number
WO2005052211A1
WO2005052211A1 PCT/DE2004/002438 DE2004002438W WO2005052211A1 WO 2005052211 A1 WO2005052211 A1 WO 2005052211A1 DE 2004002438 W DE2004002438 W DE 2004002438W WO 2005052211 A1 WO2005052211 A1 WO 2005052211A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
powder
metal powder
metal
coating
Prior art date
Application number
PCT/DE2004/002438
Other languages
German (de)
English (en)
Inventor
Anton Albrecht
Gerhard Wydra
Original Assignee
Mtu Aero Engines Gmbh
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 Mtu Aero Engines Gmbh filed Critical Mtu Aero Engines Gmbh
Priority to US10/580,891 priority Critical patent/US20070231586A1/en
Priority to EP04797405A priority patent/EP1687458A1/fr
Publication of WO2005052211A1 publication Critical patent/WO2005052211A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/288—Protective coatings for blades
    • 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
    • C23C10/18—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions
    • C23C10/26—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions more than one element being diffused
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/14—Noble metals, i.e. Ag, Au, platinum group metals
    • F05D2300/143—Platinum group metals, i.e. Os, Ir, Pt, Ru, Rh, Pd
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the invention relates to a method for producing a corrosion-resistant and oxidation-resistant coating. Furthermore, the invention relates to a component with such a coating.
  • components When components, in particular components of gas turbines, are operated at high temperatures, their free surfaces are exposed to strongly corrosive and oxidizing conditions.
  • such components can consist, for example, of a nickel-based or cobalt-based superalloy.
  • the components are provided with coatings that are made from metal powders.
  • a method for producing a corrosion-resistant and oxidation-resistant slip layer is known from DE 198 07 636 C1.
  • a slip material is produced by mixing a binder solution with an initial powder containing aluminum or chromium and an addition powder containing at least one element made of aluminum, platinum, palladium or silicon, the addition powder containing no aluminum in the case of an exit powder containing only aluminum includes.
  • the slip material thus produced is then applied to a component and then cured.
  • a heat treatment following the hardening serves to diffuse the slip layer into the component.
  • a binder, an addition powder and a starting powder are accordingly mixed and this mixture is applied to the component.
  • the starting powder is, for example, pure aluminum in the process disclosed therein, and the addition powder is, for example, pure platinum.
  • the present invention is based on the problem of creating a novel method for producing a corrosion-resistant and oxidation-resistant coating and a component with such a coating.
  • the method comprises at least the following steps: a) providing a component made of a component material, b) providing a slip material which contains at least one metal powder in addition to a binder, the metal powder comprising at least 25% by weight of a metal from the platinum group and b1) is formed from coated powder cores, the powder cores being formed from at least one metal from the platinum group, and the sheaths of the powder cores being formed from a material which is the same as the component material, or b2) is formed from a metal powder alloy, which, in addition to the at least one metal of the platinum group, contains at least one material that is the same as the component material, c) applying the slip material at least in regions to the component to form a slip layer, d) curing or drying the slip layer, e) heat treating the slip material with the slip material zumind Part of the component coated to diffuse the slip layer into the component.
  • the powder cores of the metal powder are formed from platinum and / or palladium, the sheaths of the powder cores being formed from the component material of the component to be coated.
  • the powder cores made of platinum and / or palladium are coated with nickel or a nickel alloy.
  • the coating of the metal of the platinum group suppresses the oxide formation thereof and thus has a positive influence on the formation of the coating.
  • the metal powder is preferably mixed with an aluminum powder and the binder to form a Pt-Al slip material, which is then processed in the sense of steps c) to e) above.
  • the component according to the invention is characterized by the features of claim 14.
  • Fig. 1 shows a blade 10 of a gas turbine, which includes an airfoil 11 and a blade root 12.
  • the blade 10 is provided with a coating 13 on all sides, the coating 13 being applied to the blade 10 in the sense of the method according to the invention.
  • the blade 1 1 can also be coated in sections.
  • the blade 10 according to FIG. 1 is preferably made of a nickel-based alloy, the nickel-based alloy accordingly forms the component material for the component to be coated, namely for the blade 10.
  • the invention is not limited to the coating of components . which are made of a nickel-based alloy. Components of a cobalt-based alloy, iron alloy or even titanium alloy can also be coated with the invention.
  • the blade 10 according to FIG. 1 is coated in the sense of the invention using a so-called slip process.
  • a slip material is provided.
  • the slip material comprises a binder or a binder solution and at least one metal powder, the metal powder consisting of at least 25% by weight of at least one metal from the platinum group.
  • the binder can be an organic binder or the binder solution can be a chromium-phosphate solution.
  • other binders can also be used.
  • a metal powder is formed from coated powder cores.
  • the powder cores are formed from at least one metal from the platinum group.
  • the powder cores consist either of high-purity platinum, high-purity palladium or of a platinum-palladium mixture. These powder cores are also coated according to the invention.
  • the material of the casing essentially corresponds to the component material of the component to be coated, in the exemplary embodiment shown the component material of the blade 10 to be coated. If the blade 10 to be coated is made of a nickel-based alloy, the powder cores of the metal powder are either nickel or a nickel alloy jacketed.
  • a component which is made from a cobalt-based alloy
  • the powder cores are covered either by cobalt or a cobalt alloy.
  • the powder cores made of platinum and / or palladium are encased in iron or an iron alloy.
  • a metal powder for the slip material the powder cores of which are formed from platinum and / or palladium, the powder cores being coated with a material. are coated, the composition of which essentially corresponds to the composition of the component material of the component to be coated.
  • the metal powder is formed from a metal powder alloy which, in addition to the at least one metal from the platinum group, contains at least one material that is the same as the component material.
  • the main difference from the first alternative is that the coated powder cores only alloy when heated later, while the metal powder alloy is already alloyed.
  • a slip material which, in addition to the binder, comprises aluminum on the one hand and the coated powder cores described above, in particular nickel-coated platinum cores, or a corresponding metal powder alloy.
  • an aluminum-platinum-nickel slip material is provided which enables a particularly preferred formation of an aluminum-platinum coating on the surface of the component to be coated, in the exemplary embodiment shown of the blade 10 to be coated.
  • the slip material in addition to the binder and the coated powder cores or the corresponding metal powder alloy, can of course also have an MCrAIY and / or NiAl and / or NiCrAI metal powder. It is therefore within the meaning of the present invention to provide a slip material which comprises at least the binder or the binder solution and additionally at least the metal powder from the coated powder cores or the corresponding metal powder alloy. In addition, aluminum powder or another metal powder can be contained in the slip material.
  • the slip material thus provided is applied to the component to be coated, in the exemplary embodiment shown to Scoop 10, applied.
  • the application is carried out by brushing, spraying, dipping or another suitable method.
  • the slip layer After applying the slip material to form a slip layer on the component, the slip layer is hardened or dried.
  • the hardening of the slip layer is carried out in a temperature range from room temperature to 450 ° C., preferably in a temperature range from 350 ° C. to 450 ° C.
  • the slip layer After the slip layer has hardened or dried, it is heat-treated to diffuse the slip layer into the component.
  • the heat treatment is preferably carried out in a temperature range of 750 ° C to 1250 ° C for about two hours.
  • the heat treatment can be carried out under a protective gas atmosphere, for example in argon. However, the heat treatment can alternatively also be carried out in a vacuum or in a normal atmosphere.
  • the use of a coated platinum and / or palladium core as the metal powder prevents the platinum and / or palladium from being oxidized during the heat treatment or due to the binder. This enables a significantly better coating of the component to be achieved.
  • the grain size of the coated powder cores or the corresponding metal powder alloy is in a range between 0.01 ⁇ m and 5 ⁇ m, preferably in a range from 0.2 ⁇ m to 0.5 ⁇ m.
  • the particle shape of the coated powder cores is preferably spherical in order to ensure a uniform coating of the same. However, a disk-like or plate-like shape is also possible.
  • the thickness of the coating of the powder cores in such a way that the percentage of the material of the powder cores is in a range between 25% by weight and 85% by weight and accordingly the proportion of the material of the Sheathing is between 75 wt .-% and 15 wt .-%.
  • the thickness of the nickel coating is chosen such that the nickel content is between 15 and 35 wt .-% and the platinum content between 85 and 65 wt .-%.
  • a metal powder alloy powder with an appropriate composition can alternatively be used, ie with 65% by weight to 85% by weight of platinum and 35% by weight to 15% by weight of nickel.
  • a separate alitation of the component can take place.
  • an aluminum source is provided and aluminum is diffused into the component to be coated.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

La présente invention concerne un procédé pour produire un revêtement résistant à la corrosion et à l'oxydation, ainsi qu'un composant présentant un tel revêtement. Ce procédé consiste à préparer un composant à partir d'une matière de composant et d'une matière de barbotine. Ladite matière de barbotine contient, outre un liant, au moins une poudre métallique constituée à au moins 25% en poids d'au moins un métal du groupe du platine ou de noyaux de poudre enrobés constitués d'au moins un métal du groupe du platine. Les enrobages des noyaux de poudre sont formés d'une matière qui est de même base que la matière de composant ou d'un alliage de poudres métalliques qui contient, outre ledit métal du groupe du platine, au moins une matière qui est de même base que la matière de composant. La matière de barbotine est appliquée au moins par endroits sur le composant, formant alors une couche de barbotine. Cette couche de barbotine est ensuite durcie ou séchée. Le composant revêtu au moins par endroits avec la matière de barbotine est enfin soumis à un traitement thermique afin de diffuser la couche de barbotine à l'intérieur du composant.
PCT/DE2004/002438 2003-11-26 2004-11-04 Procede pour produire un revetement resistant a la corrosion et a l'oxydation et composant presentant un tel revetement WO2005052211A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/580,891 US20070231586A1 (en) 2003-11-26 2004-11-04 Method for Producing a Corrosion-Resistant and Oxidation-Resistant Coating and Component Part Having Such a Coating
EP04797405A EP1687458A1 (fr) 2003-11-26 2004-11-04 Procede pour produire un revetement resistant a la corrosion et a l'oxydation et composant presentant un tel revetement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003155234 DE10355234A1 (de) 2003-11-26 2003-11-26 Verfahren zum Herstellen einer korrosionsbeständigen und oxidationsbeständigen Beschichtung sowie Bauteil mit einer solchen Beschichtung
DE10355234.0 2003-11-26

Publications (1)

Publication Number Publication Date
WO2005052211A1 true WO2005052211A1 (fr) 2005-06-09

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PCT/DE2004/002438 WO2005052211A1 (fr) 2003-11-26 2004-11-04 Procede pour produire un revetement resistant a la corrosion et a l'oxydation et composant presentant un tel revetement

Country Status (4)

Country Link
US (1) US20070231586A1 (fr)
EP (1) EP1687458A1 (fr)
DE (1) DE10355234A1 (fr)
WO (1) WO2005052211A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1754801A3 (fr) * 2005-08-02 2008-04-02 MTU Aero Engines GmbH Composant revetu
WO2013149606A1 (fr) * 2012-04-03 2013-10-10 Mtu Aero Engines Gmbh Couches de protection anticorrosion et/ou adhésives exemptes de cr (vi) comprenant une solution contenant des ions phosphate et une poudre métallique, laquelle poudre métallique étant au moins partiellement revêtue de si ou d'alliages de si
EP2840162A1 (fr) * 2013-08-21 2015-02-25 MTU Aero Engines GmbH Procédé de revêtement d'un composant de turbine avec une couche de protection anti-usure
EP3015568A1 (fr) * 2014-10-29 2016-05-04 MTU Aero Engines GmbH Barbotine et procede de fabrication d'une couche de diffusion resistante a l'oxydation et a la corrosion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015221482A1 (de) * 2015-11-03 2017-05-04 MTU Aero Engines AG Diffusionsschichten

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608149A1 (de) * 1967-01-03 1970-11-05 Gen Electric Zellenfoermig aufgebautes Material und Verfahren zur Herstellung
WO1999042633A1 (fr) * 1998-02-23 1999-08-26 MTU MOTOREN- UND TURBINEN-UNION MüNCHEN GMBH Procede pour produire une couche de barbotine resistant a la corrosion et a l'oxydation
EP1199377A2 (fr) * 2000-10-20 2002-04-24 General Electric Company Protection de la surface d'un article à base de nickel par une couche en alliage d'aluminium résistante à la corrosion
US6475297B1 (en) * 1998-06-26 2002-11-05 Kevin Rafferty Method for forming corrosion resistant coating on an alloy surface
US20030059542A1 (en) * 2001-09-21 2003-03-27 George Edward Creech Method for coating internal surfaces

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853403A (en) * 1956-04-11 1958-09-23 Sherritt Gordon Mines Ltd Method of producing composite metal powders
US4214042A (en) * 1977-12-23 1980-07-22 United Technologies Corporation Titanium bearing MCrAlY type alloy and composite articles
US5650235A (en) * 1994-02-28 1997-07-22 Sermatech International, Inc. Platinum enriched, silicon-modified corrosion resistant aluminide coating
FR2757181B1 (fr) * 1996-12-12 1999-02-12 Snecma Procede de realisation d'un revetement protecteur a haute efficacite contre la corrosion a haute temperature pour superalliages, revetement protecteur obtenu par ce procede et pieces protegees par ce revetement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608149A1 (de) * 1967-01-03 1970-11-05 Gen Electric Zellenfoermig aufgebautes Material und Verfahren zur Herstellung
WO1999042633A1 (fr) * 1998-02-23 1999-08-26 MTU MOTOREN- UND TURBINEN-UNION MüNCHEN GMBH Procede pour produire une couche de barbotine resistant a la corrosion et a l'oxydation
US6475297B1 (en) * 1998-06-26 2002-11-05 Kevin Rafferty Method for forming corrosion resistant coating on an alloy surface
EP1199377A2 (fr) * 2000-10-20 2002-04-24 General Electric Company Protection de la surface d'un article à base de nickel par une couche en alliage d'aluminium résistante à la corrosion
US20030059542A1 (en) * 2001-09-21 2003-03-27 George Edward Creech Method for coating internal surfaces

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1754801A3 (fr) * 2005-08-02 2008-04-02 MTU Aero Engines GmbH Composant revetu
US7655321B2 (en) 2005-08-02 2010-02-02 Mtu Aero Engines Gmbh Component having a coating
WO2013149606A1 (fr) * 2012-04-03 2013-10-10 Mtu Aero Engines Gmbh Couches de protection anticorrosion et/ou adhésives exemptes de cr (vi) comprenant une solution contenant des ions phosphate et une poudre métallique, laquelle poudre métallique étant au moins partiellement revêtue de si ou d'alliages de si
US9822258B2 (en) 2012-04-03 2017-11-21 MTU Aero Engines AG Cr(VI)-free corrosion protection layers or adhesion promoter layers produced using a solution comprising phosphate ions and metal powder, wherein the metal powder is coated at least partly with Si or Si alloys
EP2840162A1 (fr) * 2013-08-21 2015-02-25 MTU Aero Engines GmbH Procédé de revêtement d'un composant de turbine avec une couche de protection anti-usure
EP3015568A1 (fr) * 2014-10-29 2016-05-04 MTU Aero Engines GmbH Barbotine et procede de fabrication d'une couche de diffusion resistante a l'oxydation et a la corrosion
EP3483303A1 (fr) * 2014-10-29 2019-05-15 MTU Aero Engines GmbH Barbotine pour un procédé de fabrication d'une couche de diffusion résistante à l'oxydation et à la corrosion
US10316198B2 (en) 2014-10-29 2019-06-11 MTU Aero Engines AG Slip and process for producing an oxidation- and corrosion-resistant diffusion layer

Also Published As

Publication number Publication date
EP1687458A1 (fr) 2006-08-09
DE10355234A1 (de) 2005-06-30
US20070231586A1 (en) 2007-10-04

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