EP2044240A2 - Procédé d'application d'un matériau de revêtement et revêtement pour une surface métallique - Google Patents

Procédé d'application d'un matériau de revêtement et revêtement pour une surface métallique

Info

Publication number
EP2044240A2
EP2044240A2 EP07718480A EP07718480A EP2044240A2 EP 2044240 A2 EP2044240 A2 EP 2044240A2 EP 07718480 A EP07718480 A EP 07718480A EP 07718480 A EP07718480 A EP 07718480A EP 2044240 A2 EP2044240 A2 EP 2044240A2
Authority
EP
European Patent Office
Prior art keywords
layer
wear protection
content
transition region
wear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07718480A
Other languages
German (de)
English (en)
Other versions
EP2044240B1 (fr
Inventor
Heinrich Werger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2044240A2 publication Critical patent/EP2044240A2/fr
Application granted granted Critical
Publication of EP2044240B1 publication Critical patent/EP2044240B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12458—All metal or with adjacent metals having composition, density, or hardness gradient
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12576—Boride, carbide or nitride component
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12583—Component contains compound of adjacent metal
    • 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
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]

Definitions

  • the invention relates to a method for applying a multi-layer wear-resistant coating to metallic, possibly already coated surfaces, wherein the coating consists of at least two wear protection layers and an intermediate layer disposed between two wear protection layers, as well as a coating for a metallic surface.
  • a layer sequence has been proposed in which a first adhesive layer based on Cr on a metal surface, a CrN gradient layer on the adhesion layer and at least one cover layer of constant composition on the CrN gradient layer CrN, Cr 2 N or a mixture of both phases is applied.
  • the CrN layer is characterized by relatively low residual stresses, so that CrN layers can be applied in significantly greater layer thicknesses.
  • DE 102004002678 B4 discloses a multilayer coating for a valve needle of a valve, the layer sequence consisting of at least a first adhesive layer, a first wear protection layer, a second adhesive layer and a second wear protection layer, wherein this layer sequence can optionally be repeatedly applied several times.
  • a plurality of wear protection layers of small layer thickness can be combined to form a sufficiently sufficiently thick coating.
  • the individual wear protection layers can be applied in this case in a thickness which ensures that no excessive residual stresses occur, which could lead to a flaking of the wear protection layers.
  • the adhesive layers applied between the individual wear protection layers in this case consist of a material which is significantly softer compared to the material of the wear protection layer.
  • the invention is essentially characterized in that the intermediate layer consists of a material composition comprising the material of the wear protection layer and a further material, wherein the application of the intermediate layer with decreasing over a first transition region content of the material of the wear protection layer and a second transition region increasing content of the material of the wear protection layer takes place, wherein the content of the material of the wear protection layer in the intermediate layer is selected at any point with at least 5 wt .-%.
  • transition areas are formed in the respective intermediate layer, in which the content of the material of the adjacent wear protection layers increases or decreases, wherein a material different from the material of the wear protection layer material is admixed with a correspondingly increasing or decreasing content.
  • the content of the further material in the intermediate layer as a whole is limited, so that according to the invention a minimum content of 5% by weight of the material of the wear protection layer is contained at every point in the intermediate layer. This ensures that the wear properties are retained in the intermediate layer and at the same time still a kind of relaxation zone between two wear protection layers is produced, which prevents chipping or cracking due to the residual stresses in the material of these layers.
  • the content of the material of the wear protection layer is reduced or increased in the intermediate layer according to a ramp function.
  • the content of the material of the wear protection layer in the intermediate layer is reduced to at least 30 wt .-%, preferably at least 50 wt .-%. This results preferably in a layer structure in which a wear protection layer, ie a layer with a content of 100 wt .-% of coating material, followed by a first transition region of the intermediate layer, in which the content of the material of the wear protection layer of 100 wt.
  • a further transition region of the intermediate layer is then provided, in which the content of the material of the wear protection layer is again increased to 100 wt .-% and the content of the further material is reduced accordingly.
  • the first transition region preferably directly adjoins the underlying wear protection layer and the second transition region merges directly into the overlying wear protection layer.
  • the second transition region in which the content of the material of the wear protection layer is increased again, another area may be arranged in which the content of the materials is the same is chosen permanently.
  • an embodiment in which the second transition region directly adjoins the first transition region is preferred since the intermediate layer should be made as thin as possible and no further functional subregions appear necessary in addition to the two transition regions serving for the material transition.
  • the layers are preferably applied by a CVD method, processes being known from the prior art with which the proportions of the individual materials during application of the layers can be changed continuously.
  • the wear protection layer consists of a diamond-like carbon material (DLC).
  • the intermediate layer preferably contains, in addition to the material of the wear protection layer, another wear-resistant material, such as e.g. CrN.
  • FIG. 1 shows a multilayer coating according to the prior art
  • FIG. 2 shows a coating according to the present invention.
  • a first wear protection layer 3 which may consist of CrN, for example.
  • the concentration of the material of the first wear protection layer is reduced to zero and at the same time the concentration of the material of a second wear protection layer 5, for example DLC (diamond like carbon), is increased.
  • a second wear protection layer 5 is applied.
  • the diagram shows the concentration 6 as a function of the distance 7 from the surface of the component 1 to be coated, the solid line 8 representing the concentration of the material of the first wear protection layer and the dot-dash line 9 the concentration of the material of the second wear protection layer.
  • Fig. 2 shows a coating according to the present invention.
  • adhesive layer 2 first wear protection layer 3, transition protection layer 4 and second wear protection layer 5
  • an intermediate layer 10 adjoins, in which the concentration of the material of the adjacent wear protection layers in a first transition region a from 100% to 50% lowered and in a second transition region b is again increased to 100%, wherein a further material, in the present case, the material of the layer 3, is admixed accordingly, wherein the content of the further material in the transition region a increases up to 50% and in the subsequent second transition region b is lowered back to zero.
  • this intermediate layer 10 includes a further layer of the second wear protection view 5.
  • Intermediate layer 10 and second wear protection layer 5 can subsequently be repeated several times.
  • the advantage of this invention is that the stresses occurring in the wear protection layers 3 and 5 due to the coating normally above a certain layer thickness are so great that the coating no longer securely adheres. As a result, the thickness of a coating is limited upwards.
  • the stresses are reduced and it is possible to apply a further layer of the same protective layer, so that in practice almost arbitrarily thick coatings can be realized.
  • the material of the wear protection layer 5 DLC (diamond like carbon) may be selected.
  • the material of the wear protection layer 3 which is also mixed with the intermediate layer 10, it is possible, for example, to choose CrN.
  • the material admixed with the intermediate layer 10 does not necessarily have to correspond to the material of the wear protection layer 3.
  • the layer structure resulting from the multiple application of the layers 5 and 10 does not necessarily have to be applied to the component 1 with the interposition of the layers 3, 4 and optionally 2. Rather, an immediate application, with or without the interposition of an adhesive layer, conceivable.
  • the arrangement of the existing from the material of the wear protection layer 5 softer material layer 3 is only for producing a continuous transition from the soft material of the component 1 to the very hard material of the wear protection layers. 5

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Vapour Deposition (AREA)
  • Physical Vapour Deposition (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé d'application d'un revêtement multicouche résistant à l'usure sur une surface métallique, éventuellement déjà enduite, ledit procédé comprenant l'enduction d'au moins deux couche de protection contre l'usure (5) et d'une couche intermédiaire (10) disposée entre les deux couches de protection contre l'usure (5). La couche intermédiaire (10) comprend une composition de matériau contenant le matériau de la couche de protection contre l'usure (5) et un matériau supplémentaire, l'application de la couche intermédiaire (10) étant réalisée avec une teneur décroissante en matériau de la couche de protection contre l'usure (5) sur une première zone de transition (a) et avec une teneur croissante en matériau de la couche de protection contre l'usure (5) sur une seconde zone de transition (b), la teneur en matériau de la couche de protection contre l'usure (5) étant partout supérieure ou égale à 5 % en poids.
EP07718480.2A 2006-07-26 2007-06-04 Procédé d'application d'un matériau de revêtement et revêtement pour une surface métallique Active EP2044240B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0127306A AT503288B1 (de) 2006-07-26 2006-07-26 Verfahren zum aufbringen eines beschichtungsmaterials sowie beschichtung für eine metallische oberfläche
PCT/AT2007/000269 WO2008011642A2 (fr) 2006-07-26 2007-06-04 Procédé d'application d'un matériau de revêtement et revêtement pour une surface métallique

Publications (2)

Publication Number Publication Date
EP2044240A2 true EP2044240A2 (fr) 2009-04-08
EP2044240B1 EP2044240B1 (fr) 2017-08-09

Family

ID=38474504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07718480.2A Active EP2044240B1 (fr) 2006-07-26 2007-06-04 Procédé d'application d'un matériau de revêtement et revêtement pour une surface métallique

Country Status (5)

Country Link
US (1) US8178213B2 (fr)
EP (1) EP2044240B1 (fr)
JP (1) JP5508006B2 (fr)
AT (1) AT503288B1 (fr)
WO (1) WO2008011642A2 (fr)

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DE102008042896A1 (de) * 2008-10-16 2010-04-22 Federal-Mogul Burscheid Gmbh Verfahren zur Beschichtung eines Gleitelements und Gleitelement, insbesondere Kolbenring oder Zylinderlaufbuchse eines Verbrennungsmotors
DE102008056411A1 (de) * 2008-11-07 2010-05-20 Dürr Systems GmbH Beschichtungsanlagenbauteil, insbesondere Glockenteller, und entsprechendes Herstellungsverfahren
DE102009003232A1 (de) 2009-05-19 2010-12-02 Federal-Mogul Burscheid Gmbh Gleitelement eines Verbrennungsmotors, insbesondere Kolbenring
DE102010002688C5 (de) * 2010-03-09 2014-03-06 Federal-Mogul Burscheid Gmbh Schraubendruckfeder für einen Ölabstreifring eines Kolbens in einem Verbrennungsmotor und Verfahren zur Beschichtung einer Schraubendruckfeder
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US9580817B2 (en) 2012-12-04 2017-02-28 Vergason Technology, Inc. Bilayer chromium nitride coated articles and related methods

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Also Published As

Publication number Publication date
AT503288A4 (de) 2007-09-15
AT503288B1 (de) 2007-09-15
JP2009544844A (ja) 2009-12-17
US8178213B2 (en) 2012-05-15
US20090252968A1 (en) 2009-10-08
WO2008011642A2 (fr) 2008-01-31
EP2044240B1 (fr) 2017-08-09
JP5508006B2 (ja) 2014-05-28
WO2008011642A3 (fr) 2008-06-19

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