DE102006044706B4 - Layer structure, its application and method for producing a layer structure - Google Patents
Layer structure, its application and method for producing a layer structure Download PDFInfo
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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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
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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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
- C23C28/3215—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer at least one MCrAlX layer
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
- C23C28/3455—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/36—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including layers graded in composition or physical properties
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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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
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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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/073—Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
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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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
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- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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Abstract
Schichtstruktur mit einem Substrat (3) aus einem Substratmaterial und einer auf dem Substrat (3) befindlichen korrosions- und/oder oxidationshemmenden Schicht (1, 101) die nanoskalige Opferanodenteilchen (5, 105) aus einem Opferanodenmaterial umfasst und in dem die Opferanodenteilchen (5, 105) mit einem vom Opferanodenmaterial verschiedenen Kapselungsmaterial (7, 107) gekapselt sind, dadurch gekennzeichnet, dass das Kapselungsmaterial (7, 107) Substratmaterial oder eine Komponente davon ist.Layer structure comprising a substrate (3) of a substrate material and a on the substrate (3) located corrosion and / or oxidation-inhibiting layer (1, 101) the nanoscale sacrificial anode particles (5, 105) from a sacrificial anode material and in which the sacrificial anode particles (5 , 105) are encapsulated with a different encapsulation material (7, 107) from the sacrificial anode material, characterized in that the encapsulation material (7, 107) is substrate material or a component thereof.
Description
Die vorliegende Erfindung betrifft eine Schichtstruktur mit einem Substrat aus einem Substratmaterial und einer auf dem Substrat befindlichen korrosions- und/oder oxidationshemmenden Schicht und deren Anwendung bzw. ein Verfahren zur Herstellung einer solchen Schichtstruktur.The The present invention relates to a layered structure having a substrate from a substrate material and a corrosion and / or oxidation-inhibiting layer and their application or a Process for producing such a layer structure.
Korrosions- und/oder oxidationshemmende Schichten und Beschichtungen kommen dort zur Anwendung, wo Bauteile korrosiven Heißgasen ausgesetzt sind. Insbesondere ist dies bei Turbinenbauteilen wie etwa Gasturbinenlauf- oder Leitschaufeln oder Elementen von Brennkammerauskleidungen der Fall.corrosion and / or oxidation-inhibiting layers and coatings where components are exposed to corrosive hot gases. Especially this is the case with turbine components such as gas turbine blades or vanes or Elements of combustion chamber linings of the case.
Eine
typische korrosions- und/oder oxidationshemmende Beschichtung ist
die so genannte MCrAlX-Beschichtung, wobei M zumindest für ein Element
der Gruppe aus Eisen (Fe), Kobalt (Co), Nickel (Ni) und X für ein Aktivelement,
etwa Yttrium (Y) und/oder Silizium und/oder zumindest ein Element der
seltenen Erden oder Hafnium (Hf) stehen. Solche Legierungen sind
beispielsweise aus
Gemäß der
Gemäß der
Gemäß der nachveröffentlichten
Gemäß der nachveröffentlichten
Aufgabe der vorliegenden Erfindung ist es, eine Schichtstruktur bzw. deren Anwendung anzugeben, welche eine korrosions- und/oder oxidationshemmende Schicht mit einem Opferanodenmaterial aufweist und die eine längere Betriebsdauer in einer korrosiven und/oder oxidativen Heißgasumgebung ermöglicht. Eine weitere Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zum Herstellen einer Schichtstruktur, welche eine längere Betriebsdauer der Schichtstruktur in einer korrosiven und/oder oxidativen Heißgasumgebung ermöglicht, zur Verfügung zu stellen.task The present invention is a layer structure or their Application specify which a corrosion and / or oxidation-inhibiting layer having a sacrificial anode material and the longer operating life in a corrosive and / or oxidative hot gas environment. Another object of the present invention is a method for producing a layer structure which has a longer service life of Layer structure in a corrosive and / or oxidative hot gas environment allows to disposal to deliver.
Diese Aufgaben werden durch eine Schichtstruktur nach Anspruch 1, deren Verwendung nach Anspruch 8 bzw. ein Verfahren zum Herstellen einer Schichtstruktur nach Anspruch 9 gelöst. Die abhängigen Ansprüche enthalten vorteilhafte Ausgestaltungen der Erfindung.These Tasks are achieved by a layer structure according to claim 1, whose Use according to claim 8 or a method for producing a Layer structure according to claim 9 solved. The dependent claims contain advantageous embodiments of the invention.
Eine erfindungsgemäße Schichtstruktur weist ein Substrat aus einem Substratmaterial und eine auf dem Substrat befindliche korrosions- und/oder oxidationshemmende Schicht mit einem Opferanodenmaterial auf. Weiterhin umfasst die erfindungsgemäße Schichtstruktur nanoskalige Opferanodenteilchen aus dem Opferanodenmaterial, die mit einem vom Opferanodenmaterial verschiedenen Kapselungsmaterial gekapselt sind.A has layer structure according to the invention a substrate made of a substrate material and one on the substrate located corrosion and / or oxidation-inhibiting layer with a sacrificial anode material. Furthermore, the layer structure according to the invention comprises nanoscale sacrificial anode particles from the sacrificial anode material, with encapsulated with a different encapsulation material from the sacrificial anode material are.
Die gekapselten Opferanodenteilchen stellen ein Depot für Opferanodenmaterial dar, welches im Laufe des Betriebs der Schichtstruktur in einer korrosiven und/oder oxidativen Heißgasumgebung verbrauchtes Opferanodenmaterial nachliefert. Das Opferanodenmaterial der nanoskaligen Opferanodenteilchen kann hierzu durch die Beschichtung diffundieren und verbrauchtes Opferanodenmaterial ersetzen. Hierbei ist jedoch darauf zu achten, dass die Diffusion nicht zu früh erfolgt, da dies lediglich zur Agglomeration von nanoskaligen Opferanodenteil chen in manchen Bereichen der Beschichtung führen würde, wodurch andere Bereiche der Beschichtung an nanoskaligen Opfer anodenteilchen verarmen würden. Um eine vorzeitige Diffusion der Opferanodenteilchen zu unterdrücken, sind diese daher gekapselt. Aufgrund des Kapselungsmaterials ist die Diffusion der Opferanodenteilchen verlangsamt, so dass der Agglomerationsprozess und damit die Verarmung von Beschichtungsbereichen unterdrückt sind. Es steht daher über einen langen Zeitraum in allen Bereichen des korrosions- und/oder oxidationshemmenden Beschichtungsmaterials Nachschub für verbrauchtes Opferanodenmaterial zur Verfügung, insbesondere wenn eine homogene Verteilung der Opferanodenteilchen in der korrosions- und/oder oxidationshemmenden Schicht vorliegt.The encapsulated sacrificial anode particles provide a reservoir for sacrificial anode material which replenishes sacrificial anode material consumed in the course of operation of the layered structure in a corrosive and / or oxidative hot gas environment. For this purpose, the sacrificial anode material of the nanoscale sacrificial anode particles can diffuse through the coating and replace used sacrificial anode material. However, care must be taken here that the diffusion does not take place too early, since this would merely lead to the agglomeration of nanoscale sacrificial anode particles in some areas of the coating, which would impoverish other areas of the coating on nanoscale sacrificial anode particles. In order to suppress premature diffusion of the sacrificial anode particles, these are therefore encapsulated. Due to the encapsulating material, the diffusion of the sacrificial anode particles is slowed down, so that the agglomeration process and thus the depletion of coating areas are suppressed. It is therefore available over a long period of time in all areas of the corrosion and / or oxidation-inhibiting coating material supply for spent sacrificial anode material, especially if there is a homogeneous distribution of sacrificial anode particles in the corrosion and / or oxidation-inhibiting layer.
Als Kapselungsmaterial findet erfindungsgemäß beispielsweise das Substratmaterial oder eine Komponente davon Verwendung. Das Substratmaterial kann eine Superlegierung aus Eisen-, Kobalt- oder Nickelbasis sein, wie sie insbesondere für Turbinenbauteile, wie etwa Lauf- oder Leitschaufeln von Gasturbinen Verwendung findet. In diesem Fall kann das Kapselungsmaterial beispielsweise Eisen, Kobalt oder Nickel sein. Als Opferanodenmaterial kann insbesondere Aluminium Verwendung finden. Aber auch andere Materialien, die leichter Elektronen abgeben als der Hauptbestandteil des Substratmaterials, sind als Opferanodenmaterial geeignet. Im Falle von Superlegierungen auf Eisen-, Kobalt- oder Nickelbasis sind dies also Materialien, die leichter Elektronen abgeben als Eisen, Kobalt oder Nickel. Geeignete Materialien für diese Fälle wären beispielsweise Chrom (Cr), Zink (Zn), Titan (Ti), Vanadium (V), Lanthan (La), Magnesium (Mg) oder Cer (Ce).When Encapsulating material according to the invention, for example, the substrate material or a component thereof use. The substrate material can be a superalloy of iron, cobalt or nickel base, such as she especially for Turbine components, such as rotor blades or vanes of gas turbines Use finds. In this case, for example, the encapsulating material Iron, cobalt or nickel. In particular, as a sacrificial anode material Find aluminum use. But other materials, the easier Donate electrons as the main constituent of the substrate material, are suitable as sacrificial anode material. In the case of superalloys On the basis of iron, cobalt or nickel, these are materials which emit electrons more easily than iron, cobalt or nickel. suitable Materials for these cases would be for example chrome (Cr), zinc (Zn), titanium (Ti), vanadium (V), lanthanum (La), magnesium (Mg) or cerium (Ce).
Wenn die gekapselten Opferanodenteilchen außerdem über Polymere miteinander vernetzt werden, kann die Verteilung der Opferanodenteilchen in der korrosions- und/oder oxidationshemmenden Schicht besonders lange stabil gehalten werden. Dadurch kann einer Agglomeration weiter entgegengewirkt und die Betriebsdauer, bis die korrosions- und/oder oxidationshemmende Schicht ausgetauscht werden muss, weiter verlängert werden.If the encapsulated sacrificial anode particles are also crosslinked via polymers the distribution of the sacrificial anode particles in the corrosive and / or oxidation-inhibiting layer kept stable for a particularly long time become. This can further counteract agglomeration and the operating time until the corrosion and / or oxidation inhibiting Shift needs to be renewed, further extended.
Als korrosions- und/oder oxidationshemmende Schicht kann insbesondere eine MCrAlX-Schicht Verwendung finden.When corrosion and / or oxidation-inhibiting layer may in particular use an MCrAlX layer.
In der erfindungsgemäßen Schichtstruktur kann das Substrat insbesondere der Grundkörper eines Turbinenbauteils, beispielsweise einer Leit- oder Laufschaufel einer Gasturbine oder ein Element einer Brennkammerauskleidung sein.In the layer structure according to the invention can the substrate, in particular the main body of a turbine component, For example, a guide or blade of a gas turbine or be an element of a combustion chamber lining.
Im erfindungsgemäßen Verfahren zum Herstellen einer Schichtstruktur mit über Polymere miteinander vernetzten nanoskaligen Opferanodenteilchen wird auf ein Substrat ein Beschichtungsmaterial aufgebracht, das nanoskalige Opferanodenteilchen aus einem Opferanodenmaterial umfasst. Die Opferanodenteilchen sind mit einem vom Opferanodenmaterial verschiedenen Kapselungsmaterial gekapselt. Außerdem ist das Kapselungsmaterial von einer Polymerhülle umgeben. Nach dem Aufbringen des Beschichtungsmaterials erfolgt eine Wärmebehandlung, deren Zeit- und Temperatursteuerung so gewählt ist, dass eine Vernetzung der Polymerhüllen erfolgt. Das Verfahren ermöglich insbesondere das Herstellen von erfindungsgemäßen Schichtsystemen, in den einer Diffusion der Opferanodenteilchen besonders wirksam entgegengewirkt ist.in the inventive method for producing a layer structure with polymers crosslinked with one another via polymers nanoscale sacrificial anode particles, a coating material is applied to a substrate, the nanoscale sacrificial anode particle from a sacrificial anode material includes. The sacrificial anode particles are with one from the sacrificial anode material encapsulated various encapsulating material. In addition, the encapsulating material from a polymer shell surround. After application of the coating material takes place a heat treatment, whose time and temperature control is chosen so that networking the polymer shells he follows. The procedure allows in particular the production of layer systems according to the invention into which Diffusion of sacrificial anode particles particularly effectively counteracted is.
Weitere Merkmale, Eigenschaften und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Figuren.Further Features, characteristics and advantages of the present invention result from the following description of exemplary embodiments with reference to the accompanying figures.
Eine
erfindungsgemäße Schichtstruktur
ist stark schematisiert in den
Während in
Die
Beschichtung
Im
vorliegenden Ausführungsbeispiel
sind in der MCrAlX-Beschichtung
Das
Ersetzen des Aluminiums in der Aluminiumkomponente erfolgt durch
Diffusion der nanoskaligen Aluminiumpartikel
Im
vorliegenden Ausführungsbeispiel
ist Nickel als Material der Kapselung
Es sei an dieser Stelle darauf hingewiesen, dass statt der beschriebenen MCrAlX-Beschichtung auch andere mit Opferanodenelementen versehenen korrosions- und/oder oxidationshemmende Beschichtungen mit gekapselten nanoskaligen Partikeln aus Opferanodenmaterial versehen sein können. Auch muss das Opferanodenmaterial nicht notwendigerweise Aluminium sein. Im Grunde reicht es aus, wenn das Opferanodenmaterial, also das Material der nanoskaligen Partikel, leichter Elektronen abgibt als das durch die Beschichtung zu schützende Material.It It should be noted at this point that instead of the described MCrAlX coating also includes other corrosive elements provided with sacrificial anode elements. and / or oxidation-inhibiting coatings with encapsulated nanoscale Particles may be provided from sacrificial anode material. Also the sacrificial anode material does not necessarily have to be aluminum. Basically, it is sufficient if the sacrificial anode material, ie the Material of nanoscale particles, emits electrons easier than the material to be protected by the coating.
Ein
zweites Ausführungsbeispiel
für die
erfindungsgemäße Schichtstruktur
ist in den
Wie
im ersten Ausführungsbeispiel
ist die Beschichtung
Wie
im ersten Ausführungsbeispiel
kann auch im zweiten Ausführungsbeispiel
optional eine wärmedämmende Beschichtung
auf der korrosions- und/oder oxidationshemmenden Beschichtung
Das
Herstellen der Beschichtung
Die in den Ausführungsbeispielen beschriebene Erfindung zeigt einen Weg, die Korrosions- und/oder Oxidationsresistenz einer Schicht dadurch zu verbessern, dass eine homogene Verteilung des Opferanodenmaterials im Material länger beibehalten wird. Dies wird durch eine Verzögerung der Diffusion von Opferanodenpartikeln erreicht, welche sich durch eine Kapselung der Opferanodenpartikel erzielen lässt. Die Diffusion kann weiter verzögert werden, wenn die Partikel aus Opferanodenmaterial miteinander vernetzt werden.The invention described in the exemplary embodiments shows a way of improving the corrosion and / or oxidation resistance of a layer by maintaining a homogeneous distribution of the sacrificial anode material in the material for a longer time will be. This is achieved by delaying the diffusion of sacrificial anode particles, which can be achieved by encapsulating the sacrificial anode particles. Diffusion can be further retarded when the particles of sacrificial anode material are crosslinked together.
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006044706A DE102006044706B4 (en) | 2006-09-20 | 2006-09-20 | Layer structure, its application and method for producing a layer structure |
PCT/EP2007/059467 WO2008034732A2 (en) | 2006-09-20 | 2007-09-10 | Layered structure and method for producing a layered structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006044706A DE102006044706B4 (en) | 2006-09-20 | 2006-09-20 | Layer structure, its application and method for producing a layer structure |
Publications (2)
Publication Number | Publication Date |
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DE102006044706A1 DE102006044706A1 (en) | 2008-04-03 |
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DE102007061236A1 (en) * | 2007-12-19 | 2009-07-09 | Ecka Granulate Gmbh & Co. Kg | Transport form for base metal particles and use of the same |
DE102010014832B4 (en) | 2010-04-10 | 2018-04-26 | Technische Universität Braunschweig | Easy machinable nickel base alloy |
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EP1586676A1 (en) * | 2004-04-07 | 2005-10-19 | General Electric Company | Field repairable high temperature smooth wear coating |
EP1645538A1 (en) * | 2004-10-05 | 2006-04-12 | Siemens Aktiengesellschaft | Material composition for the production of a coating of a metallic component and coated metallic component |
DE102005062225B3 (en) * | 2005-12-21 | 2007-06-21 | Siemens Ag | MCrAIX-type alloy product and process for producing a layer of this alloy product |
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US6635362B2 (en) * | 2001-02-16 | 2003-10-21 | Xiaoci Maggie Zheng | High temperature coatings for gas turbines |
US20050133121A1 (en) * | 2003-12-22 | 2005-06-23 | General Electric Company | Metallic alloy nanocomposite for high-temperature structural components and methods of making |
EP1707652A1 (en) * | 2005-03-31 | 2006-10-04 | Siemens Aktiengesellschaft | Matrix and coating system |
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EP1586676A1 (en) * | 2004-04-07 | 2005-10-19 | General Electric Company | Field repairable high temperature smooth wear coating |
EP1645538A1 (en) * | 2004-10-05 | 2006-04-12 | Siemens Aktiengesellschaft | Material composition for the production of a coating of a metallic component and coated metallic component |
DE102005062225B3 (en) * | 2005-12-21 | 2007-06-21 | Siemens Ag | MCrAIX-type alloy product and process for producing a layer of this alloy product |
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DE102006044706A1 (en) | 2008-04-03 |
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