WO2023275109A1 - Élément métallique doté de revêtement de protection contre l'usure - Google Patents
Élément métallique doté de revêtement de protection contre l'usure Download PDFInfo
- Publication number
- WO2023275109A1 WO2023275109A1 PCT/EP2022/067827 EP2022067827W WO2023275109A1 WO 2023275109 A1 WO2023275109 A1 WO 2023275109A1 EP 2022067827 W EP2022067827 W EP 2022067827W WO 2023275109 A1 WO2023275109 A1 WO 2023275109A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal component
- layer
- metal
- wear
- tungsten
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 67
- 239000002184 metal Substances 0.000 title claims abstract description 67
- 239000011248 coating agent Substances 0.000 title claims abstract description 20
- 238000000576 coating method Methods 0.000 title claims abstract description 20
- 239000010410 layer Substances 0.000 claims abstract description 69
- 238000009792 diffusion process Methods 0.000 claims abstract description 32
- 230000004888 barrier function Effects 0.000 claims abstract description 23
- 239000012790 adhesive layer Substances 0.000 claims abstract description 21
- 239000002347 wear-protection layer Substances 0.000 claims abstract description 19
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 12
- 239000010937 tungsten Substances 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 150000003658 tungsten compounds Chemical class 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 7
- 150000002843 nonmetals Chemical class 0.000 claims abstract description 7
- 150000002739 metals Chemical class 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 239000011651 chromium Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910052723 transition metal Inorganic materials 0.000 claims description 7
- 150000003624 transition metals Chemical class 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 238000005121 nitriding Methods 0.000 claims description 5
- -1 tungsten nitride Chemical class 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 4
- 238000005255 carburizing Methods 0.000 claims description 3
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 claims description 3
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- SJKRCWUQJZIWQB-UHFFFAOYSA-N azane;chromium Chemical compound N.[Cr] SJKRCWUQJZIWQB-UHFFFAOYSA-N 0.000 claims description 2
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052735 hafnium Inorganic materials 0.000 claims description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- 229910003470 tongbaite Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- VGIPUQAQWWHEMC-UHFFFAOYSA-N [V].[Mo].[Cr] Chemical compound [V].[Mo].[Cr] VGIPUQAQWWHEMC-UHFFFAOYSA-N 0.000 claims 1
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 claims 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002318 adhesion promoter Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- QQHSIRTYSFLSRM-UHFFFAOYSA-N alumanylidynechromium Chemical compound [Al].[Cr] QQHSIRTYSFLSRM-UHFFFAOYSA-N 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
- C23C14/025—Metallic sublayers
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0641—Nitrides
-
- 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
-
- 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
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
-
- 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
-
- 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
- C23C28/341—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 carbide 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
- C23C28/347—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 layers adapted for cutting tools or wear applications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/02—Fuel-injection apparatus having means for reducing wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/90—Selection of particular materials
- F02M2200/9038—Coatings
Definitions
- the invention relates to a metal component with a wear protection coating, in particular a hydraulic valve component, the tribologically stressed surface of which is at least partially provided with a wear protection layer which is applied to an adhesive layer arranged between the metal component and the wear protection layer.
- the invention relates, as an exemplary application, to a hydraulic valve that is equipped with such a metal component with a wear protection coating, and to a method for applying at least one wear protection layer to the metal component.
- the field of application of the invention extends primarily to tribologically highly stressed components, preferably in motor vehicle technology.
- Functional layers for surface finishing are primarily used to protect against wear and represent a widespread means of increasing long-term resilience.
- the hard material layers of interest are used, which preferably consist of metal nitrides or metal carbides.
- components such as hydraulic high-pressure components are subject to high local stresses while maintaining very small dimensional tolerances.
- valve or high-pressure pump components in fuel injection systems are protected from wear with such hard material layers.
- reliable layer adhesion of the at least one wear protection layer must be ensured. State of the art
- DE 102018202 842 A1 discloses a generic anti-wear coated metal component.
- a tribologically stressed surface of the metal component is at least partially provided with a multi-layer wear protection layer which, in the terminology of the disclosure, has at least one metallic bonding layer, one bonding agent layer and at least one top layer.
- the metallic adhesion layer consists of a metal
- the adhesion promoter layer applied thereon consists of a hydrogen-free carbide-forming metal or a boride-forming metal.
- the top layer applied to this consists of a hydrogen-free tetrahedral carbon. This layer structure causes a thermally stable adhesion of the individual layers to one another, which means that a high level of resistance to high tribological loads is achieved.
- the layers are bonded by applying the coating directly to the component surface. Diffusion of metals originating from the metal component, such as in particular iron, chromium, nickel or molybdenum, and non-metals originating therefrom, such as nitrogen or carbon, can impair the adhesion of layers, in particular wear protection layers made of metal carbides or metal nitrides.
- the tendency of the aforementioned non-metals to diffuse is caused in particular by the surface hardening of a metal component made of chromium-nickel, chromium-molybdenum or chromium-nickel-molybdenum steel, in that carbon or nitrogen is introduced into the surface of the metal component during carburizing or nitriding .
- a metal component made of chromium-nickel, chromium-molybdenum or chromium-nickel-molybdenum steel, in that carbon or nitrogen is introduced into the surface of the metal component during carburizing or nitriding .
- heavy elements such as the iron in the base material or chromium as an alloy can also diffuse into the coating.
- Claim 9 specifies an associated manufacturing method for applying a wear protection layer to a tribologically highly stressed metal component and claim 11 relates to the use of tungsten or a tungsten compound for the purpose of the invention.
- the invention includes the technical teaching that a diffusion barrier layer consisting of tungsten W or a tungsten compound is arranged between the metal component and an adhesive layer bearing an anti-wear layer, which layer blocks the diffusion of metals originating from the metal component - in particular iron, chromium, nickel, molybdenum and the resulting non-metals - especially nitrogen and carbon - are absorbed or blocked so that the latter cannot penetrate to the adhesive layer.
- a diffusion barrier layer consisting of tungsten W or a tungsten compound is arranged between the metal component and an adhesive layer bearing an anti-wear layer, which layer blocks the diffusion of metals originating from the metal component - in particular iron, chromium, nickel, molybdenum and the resulting non-metals - especially nitrogen and carbon - are absorbed or blocked so that the latter cannot penetrate to the adhesive layer.
- the solution according to the invention ensures a barrier defined within the specific layer structure in order to prevent a diffusion of light elements—particularly carbon and nitrogen—and/or heavy elements—particularly iron, chromium, nickel, molybdenum.
- the advantage of the solution according to the invention is in particular that, thanks to the diffusion barrier layer specially integrated into the layer structure, a conversion of parts of the adhesive layer and the wear protection layer as a result of diffusion of the aforementioned elements is prevented.
- the diffusion barrier layer preferably consists of tungsten carbide or alternatively tungsten nitride.
- tungsten carbide in particular leads to exceptionally high layer adhesion.
- a high-alloy chromium-nickel, chromium-molybdenum or chromium-nickel-molybdenum steel is preferably used as the metal component to be coated.
- These steel alloys are mostly used for tribologically highly stressed components of the type of interest here and are usually surface-hardened by means of carburizing or, in particular, nitriding.
- the diffusion barrier layer according to the invention effectively prevents the carbon or nitrogen thus introduced into the surface of the metal component from diffusing, in that these elements are absorbed by the diffusion barrier layer so that they do not penetrate to the subsequent adhesive layer.
- the diffusion barrier layer consisting of tungsten W or one of the said tungsten compounds directly blocks the diffusion of metals originating from the steel component, here in particular iron and chromium.
- the anti-wear layer used in the layer structure according to the invention is preferably designed as a metal carbide or metal nitride compound selected from a group comprising: chromium nitride, aluminum chromium nitride, aluminum chromium titanium nitride, aluminum titanium nitride, chromium carbide, titanium nitride, titanium carbonitride.
- metal carbide or metal nitride compound selected from a group comprising: chromium nitride, aluminum chromium nitride, aluminum chromium titanium nitride, aluminum titanium nitride, chromium carbide, titanium nitride, titanium carbonitride.
- an adhesive layer is preferably used between the wear protection layer and the metal component, which according to a preferred embodiment is designed as a high-purity transition metal layer selected from a group of transition metals, including chromium, titanium, molybdenum, vanadium, hafnium, tantalum, zirconium or combinations thereof.
- the adhesive layer should be formed with a layer thickness between 0.05 to 1 micron, on the one hand by the minimum thickness to carry out a reliable adhesion promoter function and on the other hand to realize a relatively thin coating at maximum thickness.
- a layer thickness of between 0.01 and 1 micron is recommended for the diffusion barrier layer.
- the absorption capacity of the non-metals diffusing in here increases with increasing layer thickness; on the other hand, reliable protection is already achieved from the minimum layer thickness.
- a layer thickness beyond the maximum specification does not lead to a significant improvement in the barrier function.
- the layer structure described above can preferably be achieved by the following coating steps:
- a diffusion barrier layer consisting of tungsten W or a tungsten compound to the surface of the metal component to be coated
- an adhesion layer consisting in particular of a transition metal
- At least one anti-wear layer consisting in particular of a metal-carbide or metal-nitride compound.
- the known vacuum-assisted and plasma-activated PVD process techniques are suitable for applying the tribological hard material layer in the form of the wear protection layer and also for applying the intermediate layers that are the subject of the invention, so that the layer structure can be realized in an efficient manner in terms of production technology.
- a metallic top layer can be applied over a wear protection layer in order to reduce the mechanical stress on the layer structure.
- FIG. 1 shows a schematic longitudinal section through a hydraulic valve comprising a metal component with a wear protection coating
- FIG. 2 shows a detailed sectional view of a metal component with a wear-resistant layer coating according to the invention.
- a hydraulic valve 10 designed as a ball valve comprises a metal component 1 with a wear protection coating, which forms a conical valve seat 11 here.
- the valve seat 11 interacts with a spherical counter-body 12, which can be brought into contact with the valve seat 11 in a generally known manner in order to close the valve.
- the metal component 1 with a wear protection coating is provided with a multilayer coating 3 for wear protection in the area of the tribologically stressed surface 2 .
- this multilayer coating 3 consists in detail of an outer wear protection layer 4, which in this exemplary embodiment consists of chromium nitride applied by deposition in a PVD process.
- This wear-protection layer 4 is applied to an adhesive layer 5, which in this exemplary embodiment consists of chromium deposited using the PVD method and serves to improve layer adhesion and thus functions as a highly pure transition metal layer.
- a chrome top layer can be applied.
- the metal component 1 consists here of a high-alloy chromium-nickel-molybdenum steel, namely X40CrMoV5-1, which is surface-hardened by nitriding.
- the diffusion barrier layer 6 not only prevents diffusion of the metal component 1 contained by the nitriding
- the solution according to the invention enables a double diffusion barrier layer to achieve a particularly stable adhesion of the layer
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
L'invention concerne un élément métallique (1) comportant un revêtement de protection contre l'usure, en particulier un élément soupape hydraulique, dont la surface à charge tribologique (2) est munie, au moins en partie, d'un revêtement de protection contre l'usure (4) disposé sur une couche adhésive (5) disposée entre l'élément métallique (1) et la couche de protection contre l'usure (4). Une couche barrière de diffusion (6), constituée de tungstène (W) ou d'un composé de tungstène, est disposée entre l'élément métallique (1) et la couche adhésive (5), afin de bloquer la diffusion de métaux (Fe, Cr, Ni, Mo) issus de l'élément métallique (1) et d'absorber ou de bloquer des non-métaux (N, C) issus dudit élément, de sorte que ces derniers ne pénètrent pas dans la couche adhésive (5).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102021206765.4 | 2021-06-29 | ||
DE102021206765.4A DE102021206765A1 (de) | 2021-06-29 | 2021-06-29 | Verschleißschutzbeschichtetes Metallbauteil |
Publications (1)
Publication Number | Publication Date |
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WO2023275109A1 true WO2023275109A1 (fr) | 2023-01-05 |
Family
ID=82494085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2022/067827 WO2023275109A1 (fr) | 2021-06-29 | 2022-06-29 | Élément métallique doté de revêtement de protection contre l'usure |
Country Status (2)
Country | Link |
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DE (1) | DE102021206765A1 (fr) |
WO (1) | WO2023275109A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10038954A1 (de) * | 2000-08-09 | 2002-02-28 | Siemens Ag | Ventil, insbesondere Einspritzventil |
DE102018202842A1 (de) | 2018-02-26 | 2019-08-29 | Robert Bosch Gmbh | Verschleißschutzbeschichtetes metallisches Bauteil insbesondere für ein Kugelventil und Verfahren zum Aufbringen einer mehrschichtigen Verschleißschutzschicht zur Erzeugung eines solchen Bauteils |
DE102018125631A1 (de) * | 2018-10-16 | 2020-04-16 | Schaeffler Technologies AG & Co. KG | Schichtsystem, Rollelement und Verfahren |
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2021
- 2021-06-29 DE DE102021206765.4A patent/DE102021206765A1/de active Pending
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2022
- 2022-06-29 WO PCT/EP2022/067827 patent/WO2023275109A1/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10038954A1 (de) * | 2000-08-09 | 2002-02-28 | Siemens Ag | Ventil, insbesondere Einspritzventil |
DE102018202842A1 (de) | 2018-02-26 | 2019-08-29 | Robert Bosch Gmbh | Verschleißschutzbeschichtetes metallisches Bauteil insbesondere für ein Kugelventil und Verfahren zum Aufbringen einer mehrschichtigen Verschleißschutzschicht zur Erzeugung eines solchen Bauteils |
DE102018125631A1 (de) * | 2018-10-16 | 2020-04-16 | Schaeffler Technologies AG & Co. KG | Schichtsystem, Rollelement und Verfahren |
Also Published As
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DE102021206765A1 (de) | 2022-12-29 |
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