DE102020203436A1 - Cobalt-based alloy, powder mixture, process and component - Google Patents
Cobalt-based alloy, powder mixture, process and component Download PDFInfo
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- DE102020203436A1 DE102020203436A1 DE102020203436.2A DE102020203436A DE102020203436A1 DE 102020203436 A1 DE102020203436 A1 DE 102020203436A1 DE 102020203436 A DE102020203436 A DE 102020203436A DE 102020203436 A1 DE102020203436 A1 DE 102020203436A1
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- Prior art keywords
- cobalt
- insbesondere
- nickel
- silicon
- powder mixture
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- 229910000531 Co alloy Inorganic materials 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 title claims description 26
- 239000000203 mixture Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 22
- 239000010703 silicon Substances 0.000 claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 61
- 229910052759 nickel Inorganic materials 0.000 claims description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000011651 chromium Substances 0.000 claims description 20
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 239000010936 titanium Substances 0.000 claims description 14
- 239000010941 cobalt Substances 0.000 claims description 13
- 229910017052 cobalt Inorganic materials 0.000 claims description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 229910052735 hafnium Inorganic materials 0.000 claims description 9
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 9
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 9
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 238000000110 selective laser sintering Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3046—Co as the principal constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
- B22F2007/068—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts repairing articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/04—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/001—Turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/26—Alloys of Nickel and Cobalt and Chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
- B23P6/007—Repairing turbine components, e.g. moving or stationary blades, rotors using only additive methods, e.g. build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/22—Manufacture essentially without removing material by sintering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
- F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
- F05D2230/234—Laser welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
- F05D2230/31—Layer deposition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P10/25—Process efficiency
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Abstract
Durch eine gezielte Auswahl von Elementen einer Kobaltbasislegierung mit Silizium wird eine schweißbare Kobaltbasislegierung mit hoher Festigkeit bereitgestellt.A specific selection of elements of a cobalt-based alloy with silicon provides a weldable cobalt-based alloy with high strength.
Description
Die Erfindung betrifft eine Kobaltbasislegierung, die festigkeitssteigernde Ausscheidungsphasen ergibt und insbesondere gut schweißbar ist, eine Pulvermischung, ein Verfahren und der dadurch hergestellten Bauteile.The invention relates to a cobalt-based alloy which results in precipitation phases that increase strength and which is particularly easy to weld, a powder mixture, a method and the components produced thereby.
Die Idee betrifft insbesondere die Verbesserung der Oxidationsbeständigkeit einer Schaufelspitze an Turbinenschaufeln, insbesondere aus DS/CC-Werkstoffen. Aufgrund der Zunahme der Temperatur (T> 1373K) an der Spitze der Turbinenschaufeln der beiden vorderen Reihen in Gasturbinen reicht die Langzeitoxidationsbeständigkeit vorhandener Legierungen oft nicht aus, ohne eine zusätzliche Kühlung in der Form von Kühlluft einzusetzen.
Um diesen Kühlluftverbrauch zu reduzieren wird ein Werkstoff benötigt, der eine verbesserte Oxidationsbeständigkeit aufweist.
Kobaltbasis-Superlegierungen mit hohem Anteil an Aluminium (Al) zur Verbesserung der Oxidationsbeständigkeit werden derzeit schon als Zusatzwerkstoff für Reparaturen von Schaufelspitzen eingesetzt.The idea relates in particular to improving the oxidation resistance of a blade tip on turbine blades, in particular made of DS / CC materials. Due to the increase in temperature (T> 1373K) at the tip of the turbine blades in the two front rows in gas turbines, the long-term oxidation resistance of existing alloys is often insufficient without additional cooling in the form of cooling air.
In order to reduce this cooling air consumption, a material is required that has improved resistance to oxidation.
Cobalt-based superalloys with a high proportion of aluminum (Al) to improve oxidation resistance are currently already being used as filler material for repairs to blade tips.
Eine Verbesserung der mechanischen Eigenschaften und der Oxidationsbeständigkeit bei gleichzeitig guter Schweißbarkeit wird angestrebt.The aim is to improve the mechanical properties and the resistance to oxidation with good weldability at the same time.
Alle bisher in der Reparatur eingesetzten Schweißzusatzwerkstoffe zeigen keine verbesserten Oxidationseigenschaften bei Temperaturen von T = 1223K - 1323K.None of the filler metals used in repairs to date show any improved oxidation properties at temperatures of T = 1223K - 1323K.
Es ist daher Aufgabe der Erfindung oben genanntes Problem zu lösen.It is therefore the object of the invention to solve the above-mentioned problem.
Die Aufgabe wird gelöst durch eine Legierung gemäß Anspruch 1, eine Pulvermischung gemäß Anspruch 2, ein Verfahren nach Anspruch 7 und ein Bauteil gemäß Anspruch 8.The object is achieved by an alloy according to claim 1, a powder mixture according to claim 2, a method according to claim 7 and a component according to claim 8.
Das Pulver oder die Pulvermischung zeigt eine gut schweißbare Legierung mit insbesondere maximal 1,3 Gew.-% Silizium (Si). Silizium (Si) fördert die Bildung einer Chromoxid- und damit auch die Bildung einer stabilen Aluminiumoxidschicht.The powder or the powder mixture shows a readily weldable alloy with in particular a maximum of 1.3% by weight silicon (Si). Silicon (Si) promotes the formation of a chromium oxide and thus also the formation of a stable aluminum oxide layer.
Eine Verbesserung der mechanischen Eigenschaften und der Oxidationsbeständigkeit bei gleichzeitig guter Schweißbarkeit wird ebenso erreicht.An improvement in the mechanical properties and the oxidation resistance with good weldability at the same time is also achieved.
Die Kobaltbasislegierung weist folgende Elemente auf (in Gew.-%) :
- Nickel (Ni)
- 30,0 - 33,0, insbesondere 31,50
- Kohlenstoff (C)
- 0,06 - 0,1, insbesondere 0,08
- Chrom (Cr)
- 12,0 - 14,0, insbesondere 13,00
- Wolfram (W)
- 11,0 - 13,0, insbesondere 12,30
- Titan (Ti)
- 0,1 - 0,3, insbesondere 0,20
- Aluminium (Al)
- 2,7 - 4,7, insbesondere 3,70
- Bor (B)
- 0,005 - 0,015, insbesondere 0,01
- Zirkon (Zr)
- 0,005 - 0,015, insbesondere 0,01
- Tantal (Ta)
- 0,7 - 1,3, insbesondere 1,01
- Hafnium (Hf)
- 0,19 - 0,25, insbesondere 0,20
- Eisen (Fe)
- 0,01 - 0,03, insbesondere 0,02
- Silizium (Si)
- 0,9 - 1,3, insbesondere 1,13
- Nickel (Ni)
- 30.0 - 33.0, especially 31.50
- Carbon (C)
- 0.06-0.1, especially 0.08
- Chromium (Cr)
- 12.0-14.0, especially 13.00
- Tungsten (W)
- 11.0-13.0, especially 12.30
- Titanium (Ti)
- 0.1-0.3, especially 0.20
- Aluminum (Al)
- 2.7-4.7, especially 3.70
- Boron (B)
- 0.005-0.015, especially 0.01
- Zircon (Zr)
- 0.005-0.015, especially 0.01
- Tantalum (Ta)
- 0.7-1.3, especially 1.01
- Hafnium (Hf)
- 0.19-0.25, especially 0.20
- Iron (Fe)
- 0.01-0.03, especially 0.02
- Silicon (Si)
- 0.9-1.3, especially 1.13
Rest Kobalt (Co),
insbesondere 36,0 - 38,0, ganz insbesondere 37,0 Kobalt (Co), insbesondere weist sie kein Molybdän (Mo) auf,
insbesondere bestehend aus diesen Elementen,
sowie unvermeidbare Verunreinigungen.Remainder cobalt (Co),
in particular 36.0 - 38.0, very particularly 37.0 cobalt (Co), in particular it does not contain any molybdenum (Mo),
in particular consisting of these elements,
as well as unavoidable impurities.
Die Legierung kann als solche als ein einzelnes Pulver hergestellt werden oder eine Pulvermischung darstellen, insbesondere aus drei Pulvern. In beiden Fällen können Binder, Sekundärpartikel, ... enthalten sein.The alloy can be produced as such as a single powder or can be a powder mixture, in particular of three powders. In both cases, binders, secondary particles, ... can be included.
Dabei werden für eine Pulvermischung vorzugsweise zwei kobaltbasierte Legierungen und ein nickelbasiertes Lot verwendet. Das nickelbasierte Lot hat vorzugsweise die geringste Schmelztemperatur mit einem Abstand von mindestens 10K, insbesondere mindestens 20K zu den Schmelztemperaturen der kobaltbasierten Legierungen.Two cobalt-based alloys and one nickel-based solder are preferably used for a powder mixture. The nickel-based solder preferably has the lowest melting temperature with a distance of at least 10K, in particular at least 20K, to the melting temperatures of the cobalt-based alloys.
Die eine kobaltbasierte Legierung weist vorzugsweise Silizium (Si) auf und die andere nicht, wobei insbesondere das nickelbasierte Lot Siliziumhaltig ist.One cobalt-based alloy preferably has silicon (Si) and the other does not, the nickel-based solder in particular containing silicon.
Der Siliziumgehalt (Si) des nickelbasierten Lots ist vorzugsweise mindestens 20% größer als das der siliziumhaltigen Kobaltlegierung.The silicon content (Si) of the nickel-based solder is preferably at least 20% greater than that of the silicon-containing cobalt alloy.
Vorzugsweise weist die Pulvermischung folgende Bestandteile auf, insbesondere 3 Bestandteile:
- 1. Bestandteil:
- eine kobaltbasierte Legierung,
- aufweisend (in Gew.%):
- Nickel (Ni)
- 29,0 - 33,0, insbesondere 30,50
- Kohlenstoff (C)
- 0,010 - 0,025, insbesondere 0,016
- Chrom (Cr)
- 9,0 - 11,0, insbesondere 10,15
- Wolfram (W)
- 13,5 - 16,5, insbesondere 15,0
- Titan (Ti)
- 0,10 - 0,35, insbesondere 0,23
- Aluminium (Al)
- 3,0 - 5,0, insbesondere 4,0
- Bor (B)
- 0,010 - 0,025, insbesondere 0,014
- Zirkonium (Zr)
- 0,010 - 0,020, insbesondere 0,015
- Tantal (Ta)
- 0,4 - 0,8, insbesondere 0,6
- Hafnium (Hf)
- 0,15 - 0,45, insbesondere 0,3
- Silizium (Si)
- 0,10 - 0,30, insbesondere 0,18,
insbesondere 37,5 - 40,5, ganz insbesondere 39,1 Kobalt (Co), insbesondere weist sie kein Molybdän (Mo) und/oder kein Eisen (Fe) auf.
insbesondere bestehend aus diesen Elementen,
sowie unvermeidbare Verunreinigungen,
sowie insbesondereThe powder mixture preferably has the following components, in particular 3 components:
- 1st component:
- a cobalt-based alloy,
- having (in% by weight):
- Nickel (Ni)
- 29.0-33.0, especially 30.50
- Carbon (C)
- 0.010-0.025, especially 0.016
- Chromium (Cr)
- 9.0-11.0, especially 10.15
- Tungsten (W)
- 13.5-16.5, especially 15.0
- Titanium (Ti)
- 0.10-0.35, especially 0.23
- Aluminum (Al)
- 3.0-5.0, especially 4.0
- Boron (B)
- 0.010-0.025, especially 0.014
- Zirconium (Zr)
- 0.010-0.020, especially 0.015
- Tantalum (Ta)
- 0.4-0.8, in particular 0.6
- Hafnium (Hf)
- 0.15-0.45, especially 0.3
- Silicon (Si)
- 0.10 - 0.30, especially 0.18,
in particular 37.5-40.5, very particularly 39.1 cobalt (Co), in particular it has no molybdenum (Mo) and / or no iron (Fe).
in particular consisting of these elements,
as well as unavoidable impurities,
as well as in particular
Bestandteilcomponent
eine kobaltbasierte Legierung
aufweisend (in Gew.-%):
- Nickel (Ni)
- 13,0 - 17,0, insbesondere 15,0
- Kohlenstoff (C)
- 0,2 - 0,5, insbesondere 0,35
- Chrom (Cr)
- 18,5 - 21,5, insbesondere 20,0
- Wolfram (W)
- 7,5 - 10,5, insbesondere 9,0
- Titan (Ti)
- 0,1 - 0,3, insbesondere 0,2
- Aluminium (Al)
- 3,4 - 5,4, insbesondere 4,4
- Tantal (Ta)
- 2,5 - 4,5, insbesondere 3,0
insbesondere 46,0 - 50,0, ganz insbesondere 48,0 Kobalt (Co),
insbesondere weist sie kein Molybdän (Mo), kein Bor (B), kein Zirkon (Zr), kein Hafnium (Hf), kein Eisen (Fe) und/oder kein Silizium (Si) auf,
insbesondere bestehend aus diesen Elementen sowie unvermeidbare Verunreinigungen
sowie insbesonderea cobalt-based alloy
having (in% by weight):
- Nickel (Ni)
- 13.0-17.0, especially 15.0
- Carbon (C)
- 0.2-0.5, especially 0.35
- Chromium (Cr)
- 18.5-21.5, especially 20.0
- Tungsten (W)
- 7.5-10.5, especially 9.0
- Titanium (Ti)
- 0.1-0.3, especially 0.2
- Aluminum (Al)
- 3.4-5.4, especially 4.4
- Tantalum (Ta)
- 2.5-4.5, especially 3.0
in particular 46.0 - 50.0, very particularly 48.0 cobalt (Co),
in particular it has no molybdenum (Mo), no boron (B), no zirconium (Zr), no hafnium (Hf), no iron (Fe) and / or no silicon (Si),
in particular consisting of these elements as well as unavoidable impurities
as well as in particular
Bestandteilcomponent
ein nickelbasiertes Lot (in Gew.-%):
- aufweisend (in Gew.-%):
- Chrom (Cr)
- 18,0 - 20,0, insbesondere 19,0
- Eisen (Fe)
- 0,1 - 0,3, insbesondere 0,2
- Silizium (Si)
- 9,0 - 11,0, insbesondere 10,0
- Rest Nickel (Ni),
- having (in% by weight):
- Chromium (Cr)
- 18.0-20.0, especially 19.0
- Iron (Fe)
- 0.1-0.3, especially 0.2
- Silicon (Si)
- 9.0-11.0, especially 10.0
- Balance nickel (Ni),
In einer entsprechenden Zusammensetzung aus den 3 Bestandteilen ergibt die Pulvermischung eine Legierung wie oben aufgelistet.In a corresponding composition of the 3 components, the powder mixture results in an alloy as listed above.
Mit dem Pulver aus dieser Legierung oder dem Pulvergemisch kann ein Pulverauftragsschweißen, insbesondere mittels Laserpulverauftragsschweißen durchgeführt werden.Powder build-up welding, in particular by means of laser powder build-up welding, can be carried out with the powder made from this alloy or the powder mixture.
Ebenso kann die Legierung in jeglicher Darstellung (Pulver, Draht, ...) für andere Schweißverfahren verwendet werden.The alloy can also be used in any representation (powder, wire, ...) for other welding processes.
Auch ist eine Anwendung für die Herstellung von additive Fertigungsverfahren, wie z.B. Pulverbettverfahren wie Selektives Lasersintern, Selektives Laserschmelzen, ... genauso möglich.An application for the production of additive manufacturing processes, such as powder bed processes such as selective laser sintering, selective laser melting, ... is just as possible.
Claims (8)
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| PCT/EP2021/056903 WO2021185942A1 (en) | 2020-03-18 | 2021-03-18 | Cobalt base alloy, powder mixture, method and component |
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| DE102018208737A1 (en) * | 2018-06-04 | 2019-12-05 | Siemens Aktiengesellschaft | Y, Y` hardened cobalt-nickel base alloy, powder, component and process |
| DE102019208246A1 (en) * | 2019-06-06 | 2020-12-10 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Powder mix, a process, a coupon and a repaired component |
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