EP2761057A1 - Schichtsystem mit strukturierter substratoberfläche und verfahren zur herstellung - Google Patents
Schichtsystem mit strukturierter substratoberfläche und verfahren zur herstellungInfo
- Publication number
- EP2761057A1 EP2761057A1 EP12761600.1A EP12761600A EP2761057A1 EP 2761057 A1 EP2761057 A1 EP 2761057A1 EP 12761600 A EP12761600 A EP 12761600A EP 2761057 A1 EP2761057 A1 EP 2761057A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- substrate
- boundary surface
- layer system
- roughness
- 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
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title description 7
- 239000010410 layer Substances 0.000 claims description 84
- 238000000576 coating method Methods 0.000 claims description 17
- 238000005266 casting Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000007750 plasma spraying Methods 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- 239000012720 thermal barrier coating Substances 0.000 description 8
- 229910017052 cobalt Inorganic materials 0.000 description 6
- 239000010941 cobalt Substances 0.000 description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 229910000601 superalloy Inorganic materials 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 229910052727 yttrium Inorganic materials 0.000 description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000002318 adhesion promoter Substances 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005566 electron beam evaporation Methods 0.000 description 3
- 229910052735 hafnium Inorganic materials 0.000 description 3
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000005524 ceramic coating Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000009419 refurbishment Methods 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 description 1
- 241000191291 Abies alba Species 0.000 description 1
- 241000251131 Sphyrna Species 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/005—Selecting particular materials
-
- 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
- C23C28/32—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
-
- 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
-
- 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
-
- 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
-
- 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
- F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
Definitions
- the invention relates to a layer system and a method for the production in which the substrate surface has a greater roughness than an interface between the layers.
- Heat input to be protected is preferably done by layers, in which an outer ceramic layer is applied to a metallic adhesion promoter layer which has been applied to a metallic substrate.
- the roughness of the metallic adhesion promoter layer plays a decisive role for the service life of the ceramic thermal barrier coating
- Claim 1 and a method for producing a
- Figure 1 is a layer system according to the prior
- FIGS. 2, 7, 8 show a layer system according to the invention
- FIG. 3 shows a gas turbine
- FIG. 4 shows a turbine blade
- FIG. 5 shows a combustion chamber
- thermal coating methods in particular by plasma spraying (APS, VPS, LPPS) or by HVOF.
- FIG. 1 is a simplified illustration because the application is curved the substrate 4 as with an airfoil 406 (FIG. 4) of a turbine blade 120, 130 (FIG. 4).
- the maximum difference between the highest elevation 24 'and the deepest depression 21' of the rough surface 10 'of the layer 7' according to the prior art is r s .
- Highest increase 24 'and deepest pit 21' of these max / min values for r s need not be adjacent.
- the maximum distance measured from tip to tip between two directly adjacent elevations 24 'of the rough surface 10' of the layer 7 ' is d s .
- the texture (roughness) of the surface 10 ' is irregular and therefore has no periodicity. Same definition applies to the rough surface 16 'of the
- Substrate 4 'with r' s (maximum difference between the highest elevation 24 and the deepest depression 21 of the rough surface 16 'of the substrate 4', analogous to r s ) and d ' s (maximum Distance between two peaks of two directly adjacent
- Elevations 24 of the substrate 4 ' analogous to d s ).
- the values r ' s and d' s result from the casting or processing,
- An average line of elevations 24 'and depressions 21' of the rough surface 10 ' would be between the highest elevation 24' and the deepest depression 21 'of the rough surface 10'.
- Substrate 4 ' i. a line that is the mean of the
- Ridges 24 'and depressions 21' of the rough surface 16 ' represent a layer thickness center line 33' of the layer 7 ', i. a line running in the middle of the layer 7 'and a layer surface centerline 36', i. a line representing the average of the ridges 24 and the recesses 21 of the rough surface 10 'of the substrate are straight.
- the layer system 1 according to the invention according to FIG. 2 has a substrate 4 in which the structure of FIG
- Boundary surface 16 of the substrate 4 was selectively and controlled changed and thus also the boundary surface 10 of the layer 7, on which a ceramic coating 13 takes place.
- the boundary surface 16 of the substrate 4 has a different structure, ie a higher roughness than the surface 16 '(between substrate 4' and layer 7 ') according to the prior art (FIG. 1).
- a valley 23 and a mountain 20 or valleys and mountains make the boundary surface 16 of the substrate 4 rougher, the quasi through Undulation of a substrate 4 'is formed and increase the boundary surface 16 with respect to the surface 16' of the substrate 4 '(Fig. 1).
- the preferably wave-shaped boundary surface 16 also has the superposed roughness R s , which, however, is smaller than the specifically set roughness Ri 4 of the substrate 4.
- D 'i (maximum distance mountain 20' and valley 23 'of layer 7) is comparable to Di.
- d 'i, ie the maximum distance between two peaks of adjacent ridges 224 of the wavy rough surface 16 ', here then boundary surface 16, is comparable to d' s .
- R 7 i is comparable to the value R 4 i, since the metallic layer 7 is not the mountains 20 and valleys 23 of the surface 16 of the substrate 4
- Boundary surface 16 comparable to r ' s .
- the value R s ie the maximum difference between the highest elevation 224 'and the deepest depression 221' of the layer 7, for the interface 10 is comparable to the value r s of the prior art (FIG. 1) for the same coating technique and powder.
- the square or average roughness (Rq or Ra) can also be used.
- the roughness of the surface 16 of the substrate 4 is at least 20%, in particular 30% rougher than the interface 10 'between the layers 7', 13 'according to the prior art (FIG. 1), ie the value R 7 i or R 4 i is at least 20%, in particular 30% greater than value r s or r ' s .
- the roughness with the valley 23 and the top 20 of the substrate 4 is preferably uniform at least in places, that is, for example, sinusoidal or has at least one constant wavelength (waviness) or constant
- the unprocessed surface 16 has no particular
- the waviness of the boundary surface 16 of the substrate 4 is greater than that of the surface 10 'according to the prior art, ie at least 20%, ie, the distances between two "mountains" 20 are greater
- the smallest distance Di (FIG. neighboring mountains 20 is at least 20%, in particular 30% larger than the largest distance d ⁇ (or d s ) of adjacent elevations for the boundary surface 10th
- the waviness of the boundary surface 16 of the substrate 4 is also continued through the coating 7 on the boundary surface 10 with the mountain 20 'of the layer 7 and valley 23 of the layer 7.
- Adhesive layer 7 the adhesion
- Overlying layer 13 continues to improve.
- the substrate 4 may be structured over the entire boundary surface 16 or only locally.
- the substrate 4 preferably has a cobalt or
- the substrate 4 can already have the desired structure on the boundary surface 16 after casting by means of a correspondingly shaped casting mold or it can be cast after casting
- FIG. 3 shows by way of example a gas turbine 100 in a longitudinal partial section.
- the gas turbine 100 has a rotatably mounted about a rotational axis 102 ⁇ rotor 103 having a shaft 101, which is also referred to as the turbine rotor.
- a compressor 105 for example, a torus-like
- Combustion chamber 110 in particular annular combustion chamber, with a plurality of coaxially arranged burners 107, a turbine 108 and the exhaust housing 109th
- the annular combustion chamber 110 communicates with an annular annular hot gas channel 111, for example.
- annular annular hot gas channel 111 for example.
- turbine stages 112 connected in series form the turbine 108.
- Each turbine stage 112 is formed, for example, from two blade rings . As seen in the direction of flow of a working medium 113, in the hot gas channel 111 of a row of guide vanes 115, a series 125 formed of rotor blades 120 follows.
- the guide vanes 130 are fastened to an inner housing 138 of a stator 143, whereas the moving blades 120 of a row 125 are attached to the rotor 103 by means of a turbine disk 133, for example.
- Coupled to the rotor 103 is a generator or work machine (not shown).
- air 135 is sucked by the compressor 105 through the intake housing and ver ⁇ seals.
- the 105 ⁇ be compressed air provided at the turbine end of the compressor is ge ⁇ leads to the burners 107, where it is mixed with a fuel.
- the mixture is then burned to form the working fluid 113 in the combustion chamber 110.
- the working medium 113 flows along the hot gas channel 111 past the guide vanes 130 and the rotor blades 120.
- the working medium 113 expands in a pulse-transmitting manner, so that the rotor blades 120 drive the rotor 103 and drive the machine coupled to it.
- the components exposed to the hot working medium 113 are subject to thermal loads during operation of the gas turbine 100.
- the guide vanes 130 and rotor blades 120 of the first turbine stage 112, viewed in the flow direction of the working medium 113, are subjected to the greatest thermal stress in addition to the heat shield elements lining the annular combustion chamber 110.
- substrates of the components may have a directional structure, i. they are monocrystalline (SX structure) or have only longitudinal grains (DS structure).
- the components in particular for the turbine blade or vane 120, 130 and components of the combustion chamber 110.
- iron-, nickel- or cobalt-based superalloys are used.
- Such superalloys are known, for example, from EP 1 204 776 B1, EP 1 306 454, EP 1 319 729 A1, WO 99/67435 or WO 00/44949.
- the blades 120, 130 may be anti-corrosion coatings (MCrAlX; M is at least one element of the group iron (Fe), cobalt (Co), nickel (Ni), X is an active element and is yttrium (Y) and / or silicon , Scandium (Sc) and / or at least one element of the rare earth or hafnium).
- M is at least one element of the group iron (Fe), cobalt (Co), nickel (Ni)
- X is an active element and is yttrium (Y) and / or silicon , Scandium (Sc) and / or at least one element of the rare earth or hafnium.
- Such alloys are known from EP 0 486 489 B1, EP 0 786 017 B1, EP 0 412 397 B1 or EP 1 306 454 A1.
- MCrAlX may still be present a thermal barrier coating, and consists for example of Zr02, Y203-Zr02, ie it is not, partially or completely stabilized by Ytt ⁇ riumoxid and / or calcium oxide and / or magnesium oxide.
- Electron beam evaporation produces stalk-shaped grains in the thermal barrier coating.
- the guide blade 130 has a guide blade foot facing the inner housing 138 of the turbine 108 (not shown here). ) and a vane head opposite the vane root.
- the vane head faces the rotor 103 and fixed to a mounting ring 140 of the stator 143.
- FIG. 4 shows a perspective view of a rotor blade 120 or guide vane show ⁇ 130 of a turbomachine, which extends along a longitudinal axis of the 121st
- the turbomachine may be a gas turbine of an aircraft or a power plant for power generation, a steam turbine or a compressor.
- the blade 120, 130 has along the longitudinal axis 121 to each other, a securing region 400, an adjoining blade or vane platform 403 and a blade 406 and a blade tip 415.
- the vane 130 may be pointed on its shovel 415 have a further platform (not Darge ⁇ asserted).
- a blade root 183 is formed, which serves for attachment of the blades 120, 130 to a shaft or a disc (not shown).
- the blade root 183 is, for example, as a hammerhead out staltet ⁇ .
- Other designs as Christmas tree or Schwalbenschwanzfuß are possible.
- the blade 120, 130 has a medium felblatt to the Schau- 406 flows past, a leading edge 409 and a trailing edge 412th
- the blade 120, 130 can be made by a casting process, also by directional solidification, by a forging process, by a milling process or combinations thereof.
- Workpieces with a monocrystalline structure or structures are used as components for machines which are exposed to high mechanical, thermal and / or chemical stresses during operation.
- Such monocrystalline workpieces takes place e.g. by directed solidification from the melt.
- These are casting processes in which the liquid metallic alloy is transformed into a monocrystalline structure, i. to the single-crystal workpiece, or directionally solidified.
- dendritic crystals are aligned along the heat flow and form either a columnar grain structure (columnar, ie grains that run the entire length of the workpiece and here, in common parlance, referred to as directionally solidified) or a monocrystalline structure, ie the whole workpiece be ⁇ is made of a single crystal.
- a columnar grain structure columnar, ie grains that run the entire length of the workpiece and here, in common parlance, referred to as directionally solidified
- a monocrystalline structure ie the whole workpiece be ⁇ is made of a single crystal.
- Structures are also called directionally solidified structures. Such methods are known from US Pat. No. 6,024,792 and EP 0 892 090 A1.
- the blades 120, 130 may have coatings against corrosion or oxidation, e.g. B. (MCrAlX, M is at least one element of the group iron (Fe), cobalt (Co),
- Nickel (Ni) is an active element and stands for yttrium (Y) and / or silicon and / or at least one element of the rare earths, or hafnium (Hf)).
- Such alloys are known from EP 0 486 489 B1, EP 0 786 017 B1, EP 0 412 397 B1 or EP 1 306 454 A1.
- the density is preferably 95% of the theoretical
- the layer composition comprises Co-30Ni-28Cr-8A1-0, 6Y-0, 7Si or Co-28Ni-24Cr-10Al-0, 6Y.
- nickel-based protective layers such as Ni-10Cr-12Al-0.6Y-3Re or Ni-12Co-21Cr-IIAl-O, 4Y-2Re or Ni-25Co-17Cr-10A1-0, 4Y-1 are also preferably used , 5Re.
- a thermal barrier coating which is preferably the outermost layer, and consists for example of Zr0 2 , Y2Ü3-Zr02, ie it is not, partially ⁇ or fully stabilized by yttria
- the thermal barrier coating covers the entire MCrAlX layer.
- Electron beam evaporation produces stalk-shaped grains in the thermal barrier coating.
- the heat insulation layer may have ⁇ porous, micro- or macro-cracked compatible grains for better thermal shock resistance.
- the Thermal insulation layer is therefore preferably more porous than the
- Refurbishment means that components 120, 130 may need to be deprotected after use (e.g., by sandblasting). This is followed by removal of the corrosion and / or oxidation layers or products. Optionally, even cracks in the component 120, 130 are repaired. This is followed by a re-coating of the component 120, 130 and a renewed use of the component 120, 130.
- the blade 120, 130 may be hollow or solid. If the blade 120, 130 is to be cooled, it is hollow and also has, if necessary, film cooling holes 418 (indicated by dashed lines) on.
- FIG. 5 shows a combustion chamber 110 of a gas turbine.
- the combustion chamber 110 is configured, for example, as so-called an annular combustion chamber, in which a plurality of in the circumferential direction about an axis of rotation 102 arranged burners 107 open into a common combustion chamber space 154 and generate flames 156th
- the combustion chamber 110 is configured in its entirety as an annular structure, which is positioned around the axis of rotation 102 around.
- the combustion chamber 110 is designed for a comparatively high temperature of the working medium M of about 1000 ° C to 1600 ° C.
- the combustion chamber wall 153 is provided on its side facing the working medium M facing side with a formed from heat shield elements 155. liner.
- Each heat shield element 155 made of an alloy is on the working medium side with a particularly heat-resistant protective layer (MCrAlX layer and / or ceramic coating). equipped or is made of high temperature resistant material (solid ceramic stones).
- M is at least one element of the group iron (Fe), cobalt (Co), nickel (Ni), X is an active element and stands for yttrium (Y) and / or silicon and / or at least one element of the rare earths, or hafnium (Hf).
- MCrAlX means: M is at least one element of the group iron (Fe), cobalt (Co), nickel (Ni), X is an active element and stands for yttrium (Y) and / or silicon and / or at least one element of the rare earths, or hafnium (Hf).
- Such alloys are known from EP 0 486 489 B1, EP 0 786 017 B1, EP 0 412 397 B1 or EP 1 306 454 A1.
- a ceramic Wär ⁇ medämm Anlagen be present and consists for example of ZrÜ2, Y203 ⁇ Zr02, ie it is not, partially or completely stabilized by yttrium and / or calcium oxide and / or magnesium oxide.
- Electron beam evaporation produces stalk-shaped grains in the thermal barrier coating.
- the heat insulation layer may have ⁇ porous, micro- or macro-cracked compatible grains for better thermal shock resistance.
- Reprocessing means that heat shield elements may need to be removed 155 after use of protective layers (for example by sandblasting). This is followed by removal of the corrosion and / or oxidation layers or products. If necessary, cracks in the heat shield element 155 are also repaired.
- the 110 may also be provided for the heat shield elements 155 and for their holding elements, a cooling system.
- the heat shield elements 155 are then hollow and have, for example possibly still in the combustion chamber 154 opening cooling holes (not shown).
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Composite Materials (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12761600.1A EP2761057B1 (de) | 2011-11-14 | 2012-09-14 | Schichtsystem mit strukturierter substratoberfläche und verfahren zur herstellung |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11188983.8A EP2592174A1 (de) | 2011-11-14 | 2011-11-14 | Schichtsystem mit strukturierter Substratoberfläche und Verfahren zur Herstellung |
| EP12761600.1A EP2761057B1 (de) | 2011-11-14 | 2012-09-14 | Schichtsystem mit strukturierter substratoberfläche und verfahren zur herstellung |
| PCT/EP2012/068055 WO2013072092A1 (de) | 2011-11-14 | 2012-09-14 | Schichtsystem mit strukturierter substratoberfläche und verfahren zur herstellung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2761057A1 true EP2761057A1 (de) | 2014-08-06 |
| EP2761057B1 EP2761057B1 (de) | 2020-03-25 |
Family
ID=46880707
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11188983.8A Withdrawn EP2592174A1 (de) | 2011-11-14 | 2011-11-14 | Schichtsystem mit strukturierter Substratoberfläche und Verfahren zur Herstellung |
| EP12761600.1A Active EP2761057B1 (de) | 2011-11-14 | 2012-09-14 | Schichtsystem mit strukturierter substratoberfläche und verfahren zur herstellung |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11188983.8A Withdrawn EP2592174A1 (de) | 2011-11-14 | 2011-11-14 | Schichtsystem mit strukturierter Substratoberfläche und Verfahren zur Herstellung |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10371004B2 (de) |
| EP (2) | EP2592174A1 (de) |
| WO (1) | WO2013072092A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200064670A1 (en) * | 2018-08-22 | 2020-02-27 | Innolux Corporation | Electronic device and method for manufacturing the same |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE58908611D1 (de) | 1989-08-10 | 1994-12-08 | Siemens Ag | Hochtemperaturfeste korrosionsschutzbeschichtung, insbesondere für gasturbinenbauteile. |
| DE3926479A1 (de) | 1989-08-10 | 1991-02-14 | Siemens Ag | Rheniumhaltige schutzbeschichtung, mit grosser korrosions- und/oder oxidationsbestaendigkeit |
| DE59505454D1 (de) | 1994-10-14 | 1999-04-29 | Siemens Ag | Schutzschicht zum schutz eines bauteils gegen korrosion, oxidation und thermische überbeanspruchung sowie verfahren zu ihrer herstellung |
| EP0861927A1 (de) | 1997-02-24 | 1998-09-02 | Sulzer Innotec Ag | Verfahren zum Herstellen von einkristallinen Strukturen |
| EP0892090B1 (de) | 1997-02-24 | 2008-04-23 | Sulzer Innotec Ag | Verfahren zum Herstellen von einkristallinen Strukturen |
| US5817372A (en) * | 1997-09-23 | 1998-10-06 | General Electric Co. | Process for depositing a bond coat for a thermal barrier coating system |
| EP1306454B1 (de) | 2001-10-24 | 2004-10-06 | Siemens Aktiengesellschaft | Rhenium enthaltende Schutzschicht zum Schutz eines Bauteils gegen Korrosion und Oxidation bei hohen Temperaturen |
| WO1999067435A1 (en) | 1998-06-23 | 1999-12-29 | Siemens Aktiengesellschaft | Directionally solidified casting with improved transverse stress rupture strength |
| US6231692B1 (en) | 1999-01-28 | 2001-05-15 | Howmet Research Corporation | Nickel base superalloy with improved machinability and method of making thereof |
| EP1048751B1 (de) * | 1999-04-29 | 2004-10-27 | Hort Coating Center | Verfahren zum Aufbringen einer harten Beschichtung auf einen Gegenstand und beschichteter Gegenstand |
| JP2003529677A (ja) | 1999-07-29 | 2003-10-07 | シーメンス アクチエンゲゼルシヤフト | 耐熱性の構造部材及びその製造方法 |
| DE10117127B4 (de) * | 2001-04-06 | 2009-12-31 | Alstom Technology Ltd. | Verbundaufbau zwischen metallischen und nichtmetallischen Materialien |
| DE50112339D1 (de) | 2001-12-13 | 2007-05-24 | Siemens Ag | Hochtemperaturbeständiges Bauteil aus einkristalliner oder polykristalliner Nickel-Basis-Superlegierung |
| DE102005050873B4 (de) * | 2005-10-21 | 2020-08-06 | Rolls-Royce Deutschland Ltd & Co Kg | Verfahren zur Herstellung einer segmentierten Beschichtung und nach dem Verfahren hergestelltes Bauteil |
| WO2008049460A1 (de) * | 2006-10-24 | 2008-05-02 | Siemens Aktiengesellschaft | Verfahren zur einstellung der oberflächenrauhigkeit bei niedertemperaturbeschichtungsverfahren und bauteil |
| US20080145643A1 (en) * | 2006-12-15 | 2008-06-19 | United Technologies Corporation | Thermal barrier coating |
| DE102008009504A1 (de) * | 2008-02-15 | 2009-08-20 | Miele & Cie. Kg | Mehrlagig beschichtetes Substrat sowie Verfahren zu dessen Herstellung |
| EP2128300A1 (de) * | 2008-05-29 | 2009-12-02 | Siemens Aktiengesellschaft | Verfahren zum Hochgeschwindigkeits-Flammenspritzen |
| US20110132562A1 (en) | 2009-12-08 | 2011-06-09 | Merrill Gary B | Waxless precision casting process |
| US9272324B2 (en) | 2009-12-08 | 2016-03-01 | Siemens Energy, Inc. | Investment casting process for hollow components |
-
2011
- 2011-11-14 EP EP11188983.8A patent/EP2592174A1/de not_active Withdrawn
-
2012
- 2012-09-14 WO PCT/EP2012/068055 patent/WO2013072092A1/de not_active Ceased
- 2012-09-14 EP EP12761600.1A patent/EP2761057B1/de active Active
- 2012-09-14 US US14/354,571 patent/US10371004B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013072092A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2761057B1 (de) | 2020-03-25 |
| WO2013072092A1 (de) | 2013-05-23 |
| US20140302282A1 (en) | 2014-10-09 |
| EP2592174A1 (de) | 2013-05-15 |
| US10371004B2 (en) | 2019-08-06 |
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