CN104160059A - Method for applying a high-temperature stable coating layer on the surface of a component and component with such a coating layer - Google Patents

Method for applying a high-temperature stable coating layer on the surface of a component and component with such a coating layer Download PDF

Info

Publication number
CN104160059A
CN104160059A CN201380012678.5A CN201380012678A CN104160059A CN 104160059 A CN104160059 A CN 104160059A CN 201380012678 A CN201380012678 A CN 201380012678A CN 104160059 A CN104160059 A CN 104160059A
Authority
CN
China
Prior art keywords
coating
powder particle
powdered material
assembly
submicron
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.)
Granted
Application number
CN201380012678.5A
Other languages
Chinese (zh)
Other versions
CN104160059B (en
Inventor
S.B.C.杜瓦尔
P-D.格拉斯索
S.奧里格斯
A.斯坦科维斯基
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.)
Energy Resources Switzerland AG
Original Assignee
Alstom Technology AG
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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of CN104160059A publication Critical patent/CN104160059A/en
Application granted granted Critical
Publication of CN104160059B publication Critical patent/CN104160059B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • 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
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • 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
    • C23C4/08—Metallic material containing only metal elements
    • 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • 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
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (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)

Abstract

The invention proposes a method for applying a high-temperature stable coating layer (12) on the surface of a component (11), comprising the steps of: a) providing a component (11) with a surface to be coated; b) providing a powder material containing at least a fraction of sub-micron powder particles (18); c) applying said powder material to the surface of the component (11) by means of a spraying technique to build up a coating layer (12), whereby d) said sub-micron powder particles (18) are each at least partially surrounded by an oxide shell (20) and establish with their oxide shells (20) an at least partially interconnected sub-micron oxide network (22) within said coating layer (12).

Description

On the surface of assembly, apply the method and the assembly with this coating of high-temperature stable coating
background of invention
The present invention relates to the heat load assembly of heat engine (especially gas turbine).The present invention relates to apply the method for high-temperature stable coating on the surface of assembly.The invention still further relates to the assembly with this coating.
Prior art
In order to protect the not heated gas infringement of heat load assembly, they are applied with various protective layers, for example, heat insulating coat (TBC).In order to make this layer mortise to module body, can between the body material of assembly and TBC, provide in conjunction with coating.For the assembly made by Ni base superalloy etc. to know in conjunction with coating be MCrAlY type, wherein M represents metal, for example Ni.
During working life, crackle may be formed in conjunction with coating, and expands the matrix metal that enters assembly, and described assembly is the parts of gas turbine or other heat engine, and is exposed to elevated operating temperature.Especially, low cycle fatigue (LCF)/thermal mechanical fatigue (TMF) break be this class component life-span and repair property limiting factor.
In the present circumstance, the design of life-span and reparation property restriction state of the art, and based on calculating and experience regulation engine working mode.For the standard MCrAIY composition in conjunction with coating/seal coat, there is no at present the available solution of industry to expand these restrictions (thering is oxidation life and mechanical life) simultaneously.Self-repairing system is their a kind of solution of expansion.
In document US 7,361,386 B2, propose to use the different methods of nano-structured coating.
According to this document, in order to improve the efficiency of gas turbine, with heat insulating coat (TBC) protection hot-zone fixation kit (being mainly burner, transition piece and impeller).Except provide for nickel based super alloy assembly heat insulation, the protection that TBC also provides resistance to high temperature oxidation and thermal etching to corrode.Be made up of bilayer structure for boats and ships (diesel oil) engine, conventional TBC military and commercial aircraft and continental rise gas turbine component, this bilayer structure is made up of in conjunction with coating and the partially stabilized ceramic top coat of zirconium white (YPSZ) of yttrium oxide metal M CrAlY (M represents Co, Ni and/or Fe).
Document further assert, the complete potentiality of YPSZ TBC are still to be achieved, this be mainly due to after the engine operational cycle of limited number of times along in conjunction with coating/top coat interface or the splintering problem occurring in its vicinity.Break in this interface, often by top coat from cause too early coating to lose efficacy in conjunction with coating stripping (spallation), by the aging microstructure evidence obtaining from the work of deposited coatings with fully proved by the laboratory test of carrying out.Pushing up in conjunction with coating, playing a crucial role in breaking in interface in conjunction with the thin oxide layer of coating/top coat interface growth.Clearly, this splintering problem is by reducing motor efficiency (because engine operating temperature keeps below its optimum temps) and shortening the two negative impact coating performance of engine pack life-span.This transfers greatly reliability and the efficiency of the whole engine system of impact.
According to document US 7,361,386 B2, arrange that the combination coatingsurface of YPSZ top coat has mainly by various oxide compounds (NiO, Ni (Cr, Al) in the above 2o 4, Cr 2o 3, Y 2o 3, Al 2o 3) composition thin oxide layer.Exist this thin oxide layer between melts combine coating and ceramic top coat adhere to (combination) in play an important role.But, during engine operation, except oxide compound originally, also form other oxide skin.This secondary layer, is also mainly aluminum oxide, is commonly referred to as thermal growth oxide (TGO), and is being exposed to slowly growth between the pliotherm period.Interfacial oxide, particularly TGO layer plays a crucial role in rupture process.Believe that TGO layer growth causes the interface zone place stress accumulation between TGO layer and top coat.
In order to address these problems, document US 7,361,386 B2 propose, and in order to control variation subsequently during high temperature exposure, before being exposed to high temperature, change the microstructure (in heat insulating coat) of MCrAlY in conjunction with coating with control mode.More particularly, control structure, composition and the growth velocity of thermal growth oxide (TGO), finally to improve the performance of TBC.According to US 7,361,386 B2 provide nanostructure in conjunction with coating, therefore, nanocrystal dispersion are introduced in structure.The purposes of dispersion is to make nanocrystalline structure stable, and makes [the α]-Al expecting in TGO 2o 3nucleation.
Other prior art document, Ajdelsztajn etc., Surf. & Coat. Tech. 201 (2007) 9462-9467 and Funk etc., Met. Mat. Trans. A 42 [8] (2011) 2233-2241), show that this nanostructure has several advantages in conjunction with coating, the mechanical property of for example improving.This benefit is due to the ultra-fine dispersion that has γ and β phase.
summary of the invention
The object of this invention is to provide the assembly for hot environment that applies the method for improved high-temperature stable coating and apply by this coating on the surface of assembly
This purpose realizes by the method for claim 1 and the assembly of claim 14.
The method of the present invention that applies high-temperature stable coating on the surface of assembly comprises the following steps:
A) provide the assembly with surface to be coated;
B) provide the powdered material that comprises at least a portion submicron powder particle;
C) described powdered material is coated to the surface of assembly by spraying technology, to set up coating, thus,
D) described submicron powder particle respectively at least part of oxide shell around, and in described coating, sets up at least part of submicron oxide network interconnecting with its oxide shell.
According to inventive method embodiment, described powdered material is coated to the surface of assembly by hot-spraying techniques.
Especially, hot-spraying techniques used is high-velocity oxy-fuel spraying one of (HVOF), low-voltage plasma spraying (LPPS), air plasma spray (APS) or suspensoid plasma spraying (SPS).
According to another embodiment of inventive method, described powdered material has agglomerate.
According to another embodiment of inventive method, described powdered material has suspensoid form.
According to another embodiment of inventive method, the powder particle that powdered material comprises micron size and/or larger agglomerate, and submicron powder particle is distributed in around the powder particle of described micron size and/or the surface of described larger agglomerate in described coating.
According to another embodiment of inventive method, before joining described coating, submicron powder particle is through preoxidation.
Preferably during spraying awing (in-flight) carries out preoxidation.
Or, carry out preoxidation by the oxidation thermal pretreatment of powdered material.
According to another embodiment of inventive method, powdered material is metal-powder.
Especially, powdered material is MCrAlY type, wherein M=Ni, Co, Fe or their combination.
According to another embodiment of inventive method, coating is in conjunction with coating or seal coat.
According to the present invention, have with coating apply surperficial described assembly be characterised in that, described coating comprises submicron powder particle, these particles respectively at least part of oxide shell around, and in described coating, sets up at least part of submicron oxide network interconnecting with its oxide shell.
According to one embodiment of the invention, described coating further comprises the powder particle of micron size and/or larger agglomerate.
Especially, described submicron powder particle is distributed in around the powder particle of described micron size and/or the surface of described larger agglomerate in described coating.
According to another embodiment of the invention, coating is in conjunction with coating, and powdered material is MCrAlY type, wherein M=Ni, Co, Fe or their combination.
accompanying drawing summary
Now by different embodiments and with reference to accompanying drawing, the present invention is described more accurately.
Fig. 1 shows and can be used for thermospray structure of the present invention with rough schematic view.
Fig. 2 shows the coating by the generation of oxidation in-flight of the submicron powder particle of injection according to one embodiment of the invention with subscale network;
Fig. 3 and Fig. 2 are similar, are presented at embedding micron particle or agglomerate in described submicron powder oxide particle network; And
Fig. 4 illustrates to show according to the classification coating of one embodiment of the invention.
Reference numerals list
10 thermospray structures
11 assemblies
12,12a, 12b coating (for example,, in conjunction with coating)
13 spray guns
14 flames
15 powder
16 fuel (for example, gas)
17 oxygenants
18 submicron powder particles
19 metal core
20 oxide shell
21 agglomeration or micron powder particle
22 oxide networks (submicron)
the detailed description of different embodiments of the present invention
The submicrometer structure coating of the open specific type of the present invention.Due to oxide network and the particulate microstructure of submicron-scale, the object of the invention is to reduce LCF/TMF and breaks.
Another aspect of the present invention is the retardation effect of oxidation and corrosion.Due to the nanoscale oxide network in conjunction with coating/seal coat, the impact of oxidation and corrosion is slowed down.
Therefore, the present invention should be able to obtain compared with long service live and/or ensure reparation property, the operational risk that there are less useless parts and/or reduce, for example, because mechanical/thermal load and/or oxidation/corrosion and/or FOD (Foreign Object Damage) event form crackle at the critical area of assembly.
The present invention can
During by hot-spraying techniques coating and keep submicrometer structure (at least working hour through extending, compared with the nano-structured coating of state of the art) during turbine rotor;
The extra raising of coating performance.
Novelty of the present invention is to use submicron powder (at least reaching the certain percentage of total powdered mixture) and its mode of processing (preparation and thermospray) to reach the coating performance of described raising.The coating performance improving is the TMF/LCF effect based on reduce coating with (at least partly) submicrometer structure especially.
The present invention is based on:
(1) use and there is the powder of sub-micron or comprise the powder of this type of submicron powder at least partly:
For the form of agglomerate, formed by least part of this type of submicron powder, by hot-spraying techniques processing, for example HVOF, LPPS or APS, for example, (be shown in Fig. 1);
Or be the form of suspensoid, in the time that for example suspensoid plasma spraying (SPS) applies by hot-spraying techniques, comprise this type of submicron powder at least partly.
This type of powder is metal-powder, preferably MCrAlY, wherein M=Ni, Co, Fe or their combination.
Oxidation in-flight (seeing Fig. 2) during spraying has the effect of the submicron powder preoxidation that makes agglomerate or suspensoid.By the oxidation thermal pretreatment of powdered mixture, also can realize preoxidation.
In the time that only part powder presents submicron-scale, preferably make submicron particles be distributed in around the surface of pulverized powder particle of micron and/or agglomeration.
(2), by heat spraying method (HVOF, LPPS, APS, SPS etc.) coating powder on turbine assembly, there is (at least partly) submicrometer structure coating of (at least partly) oxide network to form.Also can use air cannon spraying technology.Preferably use the pulverized powder of preoxidation.Can apply homogeneous or classification coating (seeing the classification coating 12b in Fig. 4).For example, hierarchical layer 12b can have oxide content, and oxide content increases or reduces to the distance of coating top surface with the surface of matrix metal.In different examples, oxide content can have minimum value at the middle part of coat-thickness.
(3) effect of this coating can be for example, combination coating, seal coat or heat insulating coat system as turbine assembly (, gas turbine blades or impeller).Coating of the present invention can be used in combination separately or with other standard coated.Coating of the present invention can be used on the assembly of new system or the assembly of reparation, and the part (surface) that also can be applied topically to assembly is repaired.
(4) assembly that has this coating has benefited from during operation:
Oxidation protection:
Owing to there being oxide shell (20) around particle, the loss of reactive element during thermal spray process (for example Y, Al and C) reduces.Therefore, can during safeguarding, form by flooding mechanism more stable thermal growth oxide (TGO), with the comparison of common metal coat system, oxidation mechanism during operation slows down.Meanwhile, the oxide network (22) that is connected to form by oxide shell (20) allows to reduce in coating by the flooding mechanism that slows down the accumulation in (top and with the interface of matrix metal) loss region.
Corrosion protection:
Utilize the present invention, by finely divided chromogen in coating.This makes it possible to collect quickly sulphur, and the corresponding corrosion process that slows down.
Mechanical life:
Due to several effects, improve mechanical life compared with conventional coat system:
1) the coating oxidation performance of improving can reduce total coat-thickness.Therefore, also reduce the risk due to TMF and LCF formation crackle.This effect means formation and the expansion of the corresponding damage of slowing down (for example crackle).
2) due to 3D oxide network (22), mechanical load distributes along oxide network more equably, and this reduces broken suddenly risk.
3) the loss region in coating reduces, because for matrix metal and the less phase mutual diffusion of atmosphere (environment).Therefore, reduce the crisp risk of precipitation mutually (the possible position that crackle causes) in matrix metal/coating.
4) the oxide shell crystal grain roughening in coating microstructure that slows down, another basic reason that the crackle that therefore slows down forms.
5) in the time that oxide network is destroyed owing to breaking, the metal core of submicron particles can diffuse into metallic coating matrix.By selective oxidation subsequently, can fill up possible crackle.
6) metal matrix ductility is because fine grained structure increases, and this is also useful to overall coating life.
Fig. 1 shows the typical heat spraying structure 10 that can be used for applying submicron powder coating of the present invention.Thermospray structure 10 comprises provides the spray gun of submicron powder 15 13, fuel 16 and oxygenant 17.Produce flame 14 by combustion fuel 16, flame 14 is sent to powder particle on the surface of assembly 11, thereby sets up coating 12.
During transmitting in flame 14, the reaction of submicron powder particle 18 experience, this can see in Fig. 2, make they be transformed into have oxide shell 20 around the particle of (metal) core 19.In coating 12, the submicron particles of those oxidations is set up the interconnection structure with submicron oxide network 22.
In the time that powdered material is the mixture of submicron particles 18 and micron powder particle or agglomerate 21, as shown in Figure 3, gained coating 12a comprise oxidized submicron particles 18 around those agglomerates or micron powder particle 21.
Other embodiments of the present invention are to manufacture the especially method of the improvement heat insulating coat system of cyclicity lining section of high heat of gas turbine, and it passes through:
A) provide the homogeneous metal powdered material of being made by NiCrAlY type, wherein Ni=surplus element, Cr=25% weight, Al=5% weight, Y=0.7% weight, described metal powder material comprises 30% weight preoxidation submicron powder particle, powder particle (20-50 micron) agglomeration big or small with the micron of identical chemical constitution
B) described submicron powder particle (<1 micron) respectively oxide shell (50-100nm) around, and in final coating, set up the 3D submicron oxide network interconnecting at least partly by its oxide shell,
C) described powdered material is coated to the surface of impeller by high-velocity oxy-fuel (HVOF) spraying technology, to set up the homogeneous with 250 micron thickness in conjunction with coating, and
D) use subsequently above ceramic heat insulating coating (300-600 micron) is coated in connection with coating.
Result is that combination coating/heat insulating coat system of TGO fouling, the total coating life being improved are stablized in anti-TMF and the oxidation-resistance with improvement, the formation of having the ability.
Another embodiment of the invention is to manufacture the especially method of the classification metal seal coat system of the turbine wheel of repeated loading of high heat of gas turbine, and it passes through:
A) provide the first homogeneous metal powdered material and the second homogeneous metal powdered material, there is respectively the chemical constitution of NiCrAlY type, wherein Ni=surplus element, Cr=26% weight, Al=6% weight, Y=0.8% weight,
B) wherein the first powdered mixture comprises 25% weight preoxidation submicron (<1 micron, 50-100nm oxide shell) powder particle, powder particle (20-50 micron) agglomeration (average 80 micron) big or small with the micron of identical chemical constitution
C) wherein the second powder packets contains the big or small powder particle (20-50 micron) of micron,
D) the first powdered material is coated to the surface of lining section by high-velocity oxy-fuel (HVOF) spraying technology, to set up homogeneous first coating with 80 micron thickness,
E) the second powdered material is coated to the surface (250 microns) of the first coating by high-velocity oxy-fuel (HVOF) spraying technology,
F) another layer first powdered material is coated to the second coating top upper (80 microns) by high-velocity oxy-fuel (HVOF) spraying technology,
G) the first layer and the 3rd layer comprise respectively the 3D submicron oxide network of at least part of interconnection.
Result is to have the anti-TMF of improvement and the classification metal seal coat system of oxidation-resistance, the total coating life being improved.
Conventionally,, with the comparison of conventional coating microstructure, in the coating of at least part of submicron-scale structure of demonstration, generation and the expansion of damage are delayed." submicron effect " kept through the prolongs life time, and this is also due to (at least partly) oxide network.These aspects of the present invention are to the so-called selfreparing characteristic of precoat.
Therefore, obtain following advantage with the present invention:
Compared with long service live, and/or during repairing the useless parts of reduction, and/or the operational risk reducing, and/or the cost reduction relevant to crackle recovery, oxidation and corrosion damage.In addition, the coating of close grain size allows the diffusion heat treatments of the heat treatment cycle number with minimizing.Improve anti-TMF and oxidation-resistance as the nano coating of top layer, total coating life that this is improved.

Claims (16)

1. the method that applies high-temperature stable coating (12,12a, 12b) on the surface of assembly (11), said method comprising the steps of:
A) provide the assembly (11) with surface to be coated;
B) provide the powdered material that comprises at least a portion submicron powder particle (18);
C) described powdered material is coated to the surface of described assembly (11) by spraying technology, to set up coating (12,12a, 12b), thus,
D) described submicron powder particle (18) respectively at least part of oxide shell (20) around, and by its oxide shell (20) in described coating (12,12a, 12b) the interior submicron oxide network (22) of interconnection at least partly of setting up.
2. the method for claim 1, is characterized in that described powdered material to be coated to by hot-spraying techniques the surface of described assembly (11).
3. the method for claim 2, is characterized in that hot-spraying techniques used is high-velocity oxy-fuel spraying one of (HVOF), low-voltage plasma spraying (LPPS), air plasma spray (APS) or suspensoid plasma spraying (SPS).
4. the method for any one in claims 1 to 3, is characterized in that described powdered material has agglomerate.
5. the method for any one in claims 1 to 3, is characterized in that described powdered material has suspensoid form.
6. the method for any one in claim 1 to 5, it is characterized in that powder particle (21) and/or larger agglomerate that described powdered material comprises micron size, and described submicron powder particle (18) is in described coating (12,12a, 12b) in be distributed in around the powder particle (21) of described micron size and/or the surface of described larger agglomerate.
7. the method for any one in claim 1 to 6, is characterized in that, is joining described coating (12,12a, 12b) before, and described submicron powder particle (18) is through preoxidation.
8. the method for claim 7, is characterized in that during spraying carrying out described preoxidation awing.
9. the method for claim 7, is characterized in that carrying out described preoxidation by the oxidation thermal pretreatment of described powdered material.
10. the method for any one in claim 1 to 9, is characterized in that described powdered material is metal-powder.
The method of 11. claims 10, is characterized in that described powdered material is MCrAlY type, wherein M=Fe, Ni, Co or their combination.
The method of any one in 12. claims 1 to 11, is characterized in that described coating (12,12a, 12b) is in conjunction with coating or seal coat.
13. assemblies for hot environment (11), described assembly (11) has by coating (12,12a, surface 12b) applying, it is characterized in that, described coating (12,12a, 12b) comprise submicron powder particle (18), these particles (18) respectively at least part of oxide shells (20) around, and the submicron oxide network (22) interconnecting at least partly in the interior foundation of described coating (12,12a, 12b) by its oxide shell (20).
The assembly of 14. claims 13, is characterized in that described coating (12,12a, 12b) further comprises powder particle (21) and/or the larger agglomerate of micron size.
The assembly of 15. claims 14, it is characterized in that described submicron powder particle (18) is in described coating (12,12a, 12b) in be distributed in around the powder particle (21) of described micron size and/or the surface of described larger agglomerate.
The assembly of any one in 16. claims 13 to 15, is characterized in that described coating (12,12a, 12b) is in conjunction with coating, and described powdered material is MCrAlY type, wherein M=Ni, Co, Fe or their combination.
CN201380012678.5A 2012-03-05 2013-03-05 The method of high-temperature stable coating and the component with this coating are applied on the surface of component Active CN104160059B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12158129.2A EP2636763B1 (en) 2012-03-05 2012-03-05 Method for applying a high-temperature stable coating layer on the surface of a component and component with such a coating layer
EP12158129.2 2012-03-05
PCT/EP2013/054337 WO2013131874A1 (en) 2012-03-05 2013-03-05 Method for applying a high-temperature stable coating layer on the surface of a component and component with such a coating layer

Publications (2)

Publication Number Publication Date
CN104160059A true CN104160059A (en) 2014-11-19
CN104160059B CN104160059B (en) 2019-01-08

Family

ID=47997369

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380012678.5A Active CN104160059B (en) 2012-03-05 2013-03-05 The method of high-temperature stable coating and the component with this coating are applied on the surface of component

Country Status (5)

Country Link
US (1) US20150284834A1 (en)
EP (1) EP2636763B1 (en)
CN (1) CN104160059B (en)
CA (1) CA2864618A1 (en)
WO (1) WO2013131874A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106947902A (en) * 2015-11-12 2017-07-14 安萨尔多能源瑞士股份公司 Gas turbine engine component and the method for manufacturing this gas turbine engine component
CN113881912A (en) * 2021-10-09 2022-01-04 矿冶科技集团有限公司 Nano oxide dispersion type MCrAlY anti-oxidation coating and preparation method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104451520B (en) * 2014-12-04 2017-08-01 中国船舶重工集团公司第十二研究所 A kind of zirconia polycrystalline rolls into a ball the preparation method of ceramic coating
US10752999B2 (en) 2016-04-18 2020-08-25 Rolls-Royce Corporation High strength aerospace components
US10763715B2 (en) 2017-12-27 2020-09-01 Rolls Royce North American Technologies, Inc. Nano-crystalline coating for magnet retention in a rotor assembly
CN108004498A (en) * 2017-12-29 2018-05-08 上海英佛曼纳米科技股份有限公司 A kind of high temperature hot-rolled steel furnace roller with high temperature resistance dross oxidation and corrosion abrasion-resistant coatings
US11317540B2 (en) 2019-09-20 2022-04-26 Samsung Electronics Co., Ltd. Solid state drive apparatus and data storage apparatus including the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037705A (en) * 1988-11-08 1991-08-06 Hermann C. Starck Berlin Gmbh & Co. Kg Oxygen-containing molybdenum metal powder and processes for its preparation
US20060165910A1 (en) * 2005-01-21 2006-07-27 Cabot Corporation Processes for forming nanoparticles
US20080090071A1 (en) * 2004-10-21 2008-04-17 Commissariat A L'energie Atomique Nanosturctured Coating and Coating Method
CN101208450A (en) * 2005-05-14 2008-06-25 艾特莫斯（1998）有限公司 Semiconductor materials and methods of producing them
US20100032619A1 (en) * 2006-09-14 2010-02-11 Rene Jabado Method for producing a particle-containing functional layer and functional element comprising such a layer
US20100080921A1 (en) * 2008-09-30 2010-04-01 Beardsley M Brad Thermal spray coatings for reduced hexavalent and leachable chromuim byproducts
CN102732817A (en) * 2011-04-07 2012-10-17 通用电气公司 Methods for forming an oxide-dispersion strengthened coating

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7361386B2 (en) 2002-07-22 2008-04-22 The Regents Of The University Of California Functional coatings for the reduction of oxygen permeation and stress and method of forming the same
ES2302907T3 (en) * 2002-11-22 2008-08-01 Sulzer Metco (Us) Inc. PROJECTION POWDER FOR PRODUCTION BY THERMAL PROJECTION OF A THERMAL INSULATING LAYER RESISTANT TO HIGH TEMPERATURES.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037705A (en) * 1988-11-08 1991-08-06 Hermann C. Starck Berlin Gmbh & Co. Kg Oxygen-containing molybdenum metal powder and processes for its preparation
US20080090071A1 (en) * 2004-10-21 2008-04-17 Commissariat A L'energie Atomique Nanosturctured Coating and Coating Method
US20060165910A1 (en) * 2005-01-21 2006-07-27 Cabot Corporation Processes for forming nanoparticles
CN101208450A (en) * 2005-05-14 2008-06-25 艾特莫斯（1998）有限公司 Semiconductor materials and methods of producing them
US20100032619A1 (en) * 2006-09-14 2010-02-11 Rene Jabado Method for producing a particle-containing functional layer and functional element comprising such a layer
US20100080921A1 (en) * 2008-09-30 2010-04-01 Beardsley M Brad Thermal spray coatings for reduced hexavalent and leachable chromuim byproducts
CN102732817A (en) * 2011-04-07 2012-10-17 通用电气公司 Methods for forming an oxide-dispersion strengthened coating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106947902A (en) * 2015-11-12 2017-07-14 安萨尔多能源瑞士股份公司 Gas turbine engine component and the method for manufacturing this gas turbine engine component
CN113881912A (en) * 2021-10-09 2022-01-04 矿冶科技集团有限公司 Nano oxide dispersion type MCrAlY anti-oxidation coating and preparation method thereof
CN113881912B (en) * 2021-10-09 2023-01-31 矿冶科技集团有限公司 Nano oxide dispersion type MCrAlY anti-oxidation coating and preparation method thereof

Also Published As

Publication number Publication date
WO2013131874A1 (en) 2013-09-12
EP2636763A1 (en) 2013-09-11
CN104160059B (en) 2019-01-08
US20150284834A1 (en) 2015-10-08
CA2864618A1 (en) 2013-09-12
EP2636763B1 (en) 2020-09-02

Similar Documents

Publication Publication Date Title
CN104160059A (en) Method for applying a high-temperature stable coating layer on the surface of a component and component with such a coating layer
Thakare et al. Thermal barrier coatings—A state of the art review
Wortman et al. Thermal barrier coatings for gas turbine use
US7311940B2 (en) Layered paint coating for turbine blade environmental protection
US20080011813A1 (en) Repair process for coated articles
JP2005330586A (en) Bi-LAYER HVOF COATING WITH CONTROLLED POROSITY FOR USE IN THERMAL BARRIER COATING
US20100237134A1 (en) Repair process for coated articles
JP2007187152A (en) Corrosion inhibiting ceramic coating and method of application
Gurrappa et al. The importance of hot corrosion and its effective prevention for enhanced efficiency of gas turbines
US20060127694A1 (en) Corrosion resistant coating composition, coated turbine component and method for coating same
US20100008816A1 (en) Nickel-based superalloys, repaired turbine engine components, and methods for repairing turbine components
Gurrappa et al. The importance of corrosion and the necessity of applying intelligent coatings for its control
CN109778102A (en) A kind of multilayered structure selfreparing thermal barrier coating and preparation method thereof
CN108603275A (en) Adhesion promoter and its manufacturing method for being bonded in high temperature finishes in substrate
Bobzin et al. Process development for innovative iron alloy metallic glass coatings
US8652650B2 (en) Platinum-modified nickel-based superalloys, methods of repairing turbine engine components, and turbine engine components
Toriz et al. Thermal barrier coatings for jet engines
Prashar et al. A Comprehensive Review on Combating The Elevated-Temperature Surface Degradation by M CrAl X Coatings
CN113930710A (en) Thermal barrier coating material, preparation method and application thereof
Prashar et al. Thermal barrier coatings: recent developments, challenges, and probable solutions
US6521053B1 (en) In-situ formation of a protective coating on a substrate
US20180058228A1 (en) Hot corrosion-resistant coatings for gas turbine components
Yamano et al. Oxidation control with chromate pretreatment of MCrAlY unmelted particle and bond coat in thermal barrier systems
Cui et al. Thermal durability of thermal barrier coatings with bond coat composition in cyclic thermal exposure
Saeedi et al. Study of microstructure and thermal shock behavior of two types of thermal barrier coatings

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: Baden, Switzerland

Applicant after: ALSTOM TECHNOLOGY LTD

Address before: Baden, Switzerland

Applicant before: Alstom Technology Ltd.

COR Change of bibliographic data
TA01 Transfer of patent application right

Effective date of registration: 20171207

Address after: Baden, Switzerland

Applicant after: Energy resources Switzerland AG

Address before: Baden, Switzerland

Applicant before: ALSTOM TECHNOLOGY LTD

GR01 Patent grant
GR01 Patent grant