EP3129519A1 - Système tribologique avec usure réduite de corps antagoniste - Google Patents

Système tribologique avec usure réduite de corps antagoniste

Info

Publication number
EP3129519A1
EP3129519A1 EP15716018.5A EP15716018A EP3129519A1 EP 3129519 A1 EP3129519 A1 EP 3129519A1 EP 15716018 A EP15716018 A EP 15716018A EP 3129519 A1 EP3129519 A1 EP 3129519A1
Authority
EP
European Patent Office
Prior art keywords
coating
layer
layers
tribological
outermost layer
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.)
Withdrawn
Application number
EP15716018.5A
Other languages
German (de)
English (en)
Inventor
Juergen Ramm
Florian Seibert
Benno Widrig
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.)
Oerlikon Surface Solutions AG Pfaeffikon
Original Assignee
Oerlikon Surface Solutions AG Pfaeffikon
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 Oerlikon Surface Solutions AG Pfaeffikon filed Critical Oerlikon Surface Solutions AG Pfaeffikon
Publication of EP3129519A1 publication Critical patent/EP3129519A1/fr
Withdrawn legal-status Critical Current

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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
    • C23C14/325—Electric arc evaporation
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/34—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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
    • 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
    • C23C28/04—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 only coatings of inorganic non-metallic material
    • C23C28/042—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 only coatings of inorganic non-metallic material including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • 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
    • C23C28/04—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 only coatings of inorganic non-metallic material
    • C23C28/044—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 only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications

Definitions

  • the present invention relates to a tribological system with significantly improved tribological behavior and reduced Jacobissoneiss according to claim 1.
  • tribological body or simply as “body”
  • body the one partner of the tribological system
  • body the one partner of the tribological system
  • this coating one pursues different goals, above all, it is intended to reduce the wear of the body, for example with a cutting tool. This is especially true for tooling applications, but is also important for components.
  • Coatings of tools and components are often made by Physical Vapor Deposition (PVD) or Plasma Enhanced Chemical Vapor Deposition (PECVD) technology.
  • PVD Physical Vapor Deposition
  • PECVD Plasma Enhanced Chemical Vapor Deposition
  • the prior art includes coating methods such as sputtering, cathodic Funkenen evaporation and plasma-assisted CVD or combinations of these methods.
  • the method of cathodic sputtering is mainly used in the field of tool coating in cutting, punching and forming tools. It is also used to a limited extent for component coating, for example, for coating piston rings with chromium nitride (CrN). This coating process is robust and reliable and allows you to synthesize a wide range of coating materials.
  • CrN chromium nitride
  • the disadvantage of this method are splashes that occur during the evaporation process of the cathode material and are partially incorporated into the coatings as so-called droplets. This increases their surface roughness and makes it necessary for these layers to be post-treated for applications where low coefficients of friction are necessary.
  • the usual layer thickness is between 30 ⁇ m and 50 ⁇ m. About 3 to 5um are removed by the post-treatment, so that the necessary for the layer surface Surface roughness is achieved.
  • the layer material is usually chosen to be harder in its mechanical properties than the counter-body material, there is a risk that counter-body material is transferred to the layer material or lubricated in deficient lubrication.
  • the vibration s-rubbing-wear test (SRV test, English, "reciprocating wear test") was developed. On the basis of this test, the problem of lubricating will now be clarified and the inventive results will be explained. All measurements in the SRV test were made with the same parameters regarding frequency, glide path, test force and test temperature, i. that all test results are comparable.
  • bodies were coated with different materials by the method of reactive cathodic sparks evaporation.
  • a body polished discs (022mm x 5.6mm) made of steel (90MnCrV8, 1.2842) were used, the one Rockwell hardness> 62HRC and possessed a surface roughness Ra ⁇ 0.05pm.
  • Polished steel balls made of 100Cr6 hardened steel, 60 - 68 HRC, 0 10mm were used as counterparts.
  • the mechanical properties of the layer materials to be compared were determined by the nanoindentation method and are summarized in Table 1.
  • Figure 2 shows the photographs taken with the light microscope after the SRV test, which characterize the wear marks on the layers (a-c) and the associated wear on the counter-bodies (d-f).
  • the top line of the table illustrates the wear of the layers in the rubbing track.
  • CrN (a) also detected by an EDX analysis
  • the wear of the counter body is shown in the bottom line of Figure 2.
  • the diameter of the wear cap, the part of the uncoated counter body that was abraded in the SRV test, is the largest in the case of the CrN coated body (d).
  • MoN For MoN (e) one finds the least wear. In this case, there is a partial transfer from the Mo-containing layer material to the counter body (darkening of the wear cap). MoCuN (f) takes a mean position with respect to wear, but also shows the Mo and Cu containing carry on the counter body. This greasing of the counter body seems to be a major reason why there is no transfer of material to the layer.
  • the MoN layers do not cause greasing of the counter-body material on the layer even though the layers were not post-treated and no lubricant was used.
  • the reason for this is that the counter body is at least partially lubricated by a Mo-containing layer. If one compares with the CrN, one can conclude that the lubrication of the counter body for its wear reduction of greater importance than an adaptation to its hardness.
  • An adaptation of the layer hardness is used, for example, in the case of CrN, by reducing it for steel counter-bodies, which can be achieved by changing the coating parameters.
  • the lower layer hardness leads to less wear of the counter body in lack lubrication, of course, on the other hand, the risk of higher Schichtversch leisses.
  • the curve (2) shows the course for dry conditions, for the coated body with aftertreatment and the uncoated polished counter-body.
  • the coefficient of friction at the end of the test is between 0.5 and 0.6 across much of the curve, so it is not very different from the one obtained without post-treatment of the layer (see Figure 1).
  • the course of the coefficient of friction was recorded, which for dry conditions, coated body and coated counter-body, but on both sides not after treated layer resulted (3). Surprisingly, this curve usually runs below (2) and ends well below this curve.
  • the MoN-based layers also wear the counter body under these conditions, there is no material transfer from the counter body to the layer. The reason for this is that the MoN-based layers smear the counterbody with a Mo-containing layer,
  • the described problem is solved by a coating not only of the body, but in addition of the counter body, wherein the coatings of the body and the counter body have substantially the same material related layers on their surface.
  • the layers are selected in such a way that the essentially related coatings of body and counter-body smooth themselves with the addition of a lubricant, without the need for aftertreatment even for one of the layers.
  • Material-related layers in the context of the present invention are layers that have an elemental composition that is not necessarily the same but that is at least 80 atomic percent.
  • a first layer or a first coating and a second layer or coating are material related layers or related coatings if the elemental composition of the first layer or coating matches the elemental composition of the second layer or coating at least 60 atomic percent.
  • Another condition for solving the problem is the property of the layer material to lubricate the counter body at least partially.
  • Another condition for solving the problem is the property of the layer material that the existing in the layer or its surface splashes (also called Droplets) are not intimately connected to the layer, ie can be easily removed, demonstrable by about a post-treatment and determination of the Surface finish, wherein after the post-treatment Rpk and Rpkx are smaller than Rvk and Rvkx.
  • the solution is based on a coating containing Mo or MoN consisting of a MoN-based layer material that may contain additional dopants of other elements.
  • the coating of body and counter-body is carried out by means of a PVD method or a PECVD method or a combination of these methods.
  • the preferred method for the coating is reactive cathodic sputtering.
  • the process is well known to those skilled in the art and has been used for industrial scale coatings for many years.
  • the dopants can also be introduced via a further target from the doping material or else into the coating for the addition of gases.
  • the gas is supplied to the spark discharge or another gas discharge via a controllable gas inlet and correspondingly decomposed or excited wholly or partly in the plasma of the spark discharge or another auxiliary plasma.
  • MoN or MoCuN ie MoN layers with Cu doping
  • Characteristic of layers that are produced by means of spark evaporation the roughness of the layer surface, which is mainly due to macroparticles ⁇ or splashes), which arise in the sparks evaporation, but which can also occur in an evaporation by sputtering, for example.
  • the increase in roughness in / on the layer by these spatters is striking, especially in cathodic sputtering.
  • a post-treatment for example, by polishing or
  • this increase in roughness can be different, as shown by the values in the figure for a MoN (black) and a MoCuN (gray) layer.
  • two layers are compared, which have approximately the same layer thickness of 2 pm.
  • the layer roughness in the spark coating not only depends on the coating material but also increases with the layer thickness, since the number of splashes striking the substrate surface accumulate. Aftertreatment of the layers should therefore either remove the splashes from the layer surface or they should be smoothed easily.
  • the MoN-based layers can be easily post-treated and there is a significant reduction in the characteristic of the peak roughness Rpk and Rpkx.
  • the present invention is an excellent solution for improving the tribological behavior and reducing the wear of:
  • Sharing pumps such as push pins, plungers, pistons
  • Tools such as injection molding tools, forming and punching tools, thread cutting tools, cutting tools
  • Parts of machine tools such as clamping systems, fittings, guide rails
  • Parts of internal combustion engines and their propulsion systems such as cylinders, pistons, piston pins, plungers, key plungers, pestles, flat plungers, mushroom plungers, roller plungers, pistons, piston rings, piston pump, connecting rod, connecting rod bearings, radial shaft seals, bearings, bushes, crankshaft shafts, crankshaft bearings, camshafts, camshaft bearings, Gear drive, crank rod, oil pump, water pump injection system, rocker arm, rocker arm, tow lift], body, turbocharger parts, vanes, bolts, valve timing, valvetrain, intake and exhaust valves, bearings of coolant pumps, parts of injection pumps
  • Figure 1 Time course of the friction coefficients under the SRV test conditions A1 / B1 / C2 for the coatings of the body with CrN (1), MoN (2) and MoCuN (3).
  • Figure 5 Time course of the coefficients of friction in the case of MoN coatings for the test conditions A2 / B1 / C1 (1), A1 / B1 / C1 (2) and A1 / B2 / C2.
  • Figure 8 Photomicrographs of the wear track on the CrN (a), MoN (b) and MoCuN (c) layer (top line) with the corresponding wear of the same layer coated counter body (df, bottom line) for the test conditions A1 / B2 / C2.
  • Figure 10 Time course of the friction coefficients under the SRV test conditions A2 / B2 / C2 for the coatings of the body with CrN (1), MoN (2) and MoCuN (3).
  • Figure 11 Photomicrographs of the wear track on the CrN (a), MoN (b) and MoCuN (c) layer (upper line) with the corresponding wear of the uncoated counter body (df, bottom line) for the test conditions A2 / B2 / C2.
  • the invention relates to a triboiogical system comprising a body having a first contact surface at least partially coated with a first coating, a counter body having a second contact surface at least partially coated with a second coating and lubricant as an intermediate means, characterized in that the first and the second coating each having a layer as the outermost layer, wherein the composition of the outermost layer of the first coating and the composition of the outermost layer of the second coating are selected, wherein
  • the droplets according to this preferred embodiment of the present invention are not detrimental but, on the contrary, are very advantageous because these droplets contribute to the mutual smoothing without producing layer damage or layer flaking.
  • the inventors observed very good tribological behavior when the droplets were not intimately bonded to the layers.
  • the inventors have further found that in these cases, the roughness values Rpk and Rpkx of the examined exposed layers after mechanical post-treatment or after tribological contact during operation of the tribological system were smaller than the roughness values Rvk and Rvkx.
  • the outermost layer of the first coating and / or the outermost layer of the second coating contains molybdenum. Even more preferably, the outermost layer of the first coating and / or the outermost layer of the second coating contain molybdenum nitride.
  • the inventors have also found it to be very advantageous that at least one of the molybdenum nitride-containing layers contains a doping element or a combination of doping elements composed of the elements Cu, Cr, Ti, Zr. Si, O, C, Zr, Nb, Ag, Hf, Ta, W, B, Y, Pt, Au, Pd and V.
  • the doping element is Cu or the combination of doping elements contains mostly Cu.
  • the first and / or the second coating has at least one further layer below the outer layer, wherein the lower layer is an oxide layer.
  • the oxide layers are deposited by means of are-evaporation. The exposed layers may then function as sacrificial layers to initiate the saturation of the coated contact surfaces. In this way, the droplets of the oxide layers are gently smoothed or removed without causing the droplets in the oxide layers to damage or flake the coatings.
  • the first and second coatings each have an oxide layer below the outermost layer, wherein the coalescence of the two oxide layers is selected such that the oxide layers are material-related layers, such that the composition of the oxide layer in the first coating coincides with the composition of the oxide layer the second coating is at least 60 atomic percent.
  • At least the outermost layers of the coatings are deposited by means of arc evaporation.
  • at least the droplets present in the outermost layers are "characteristic droplets produced by means of arc vaporization" and the layers have an excellent layer quality with regard to further layer properties.
  • the oxide layers are deposited by means of Are evaporation and therefore have "characteristic Droplets” and excellent layer quality.
  • first and the second coating may also have further lower layers, which may be, for example, one or more support layers, or one or more adhesion layers to increase the adhesion between the coating and the substrate.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Physical Vapour Deposition (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

L'invention concerne un système tribologique qui a un comportement tribologique considérablement amélioré, comprenant un corps présentant une première surface de contact au moins partiellement recouverte d'un premier revêtement, un corps antagoniste présentant une seconde surface de contact au moins partiellement recouverte d'un second revêtement et un lubrifiant servant de moyen intermédiaire. L'invention est caractérisée en ce que le premier et le second revêtement comportent chacun une couche servant de couche la plus extérieure, la composition de la couche la plus extérieure du premier revêtement et la composition de la couche la plus extérieure du second revêtement étant choisies de telle sorte que • les deux couches les plus extérieures lubrifient des surfaces en acier lorsqu'elles sont soumises à un contact tribologique avec l'acier et • les deux couches les plus extérieures sont des couches apparentées par leur matériau de telle sorte que la composition des éléments de la première couche la plus extérieure correspond à la composition des éléments de la seconde couche la plus extérieure à hauteur d'au moins 60 % atomiques.
EP15716018.5A 2014-04-09 2015-04-09 Système tribologique avec usure réduite de corps antagoniste Withdrawn EP3129519A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461977188P 2014-04-09 2014-04-09
PCT/EP2015/057684 WO2015155275A1 (fr) 2014-04-09 2015-04-09 Système tribologique avec usure réduite de corps antagoniste

Publications (1)

Publication Number Publication Date
EP3129519A1 true EP3129519A1 (fr) 2017-02-15

Family

ID=52829078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15716018.5A Withdrawn EP3129519A1 (fr) 2014-04-09 2015-04-09 Système tribologique avec usure réduite de corps antagoniste

Country Status (6)

Country Link
US (1) US20170211174A1 (fr)
EP (1) EP3129519A1 (fr)
JP (1) JP2017514017A (fr)
KR (1) KR20160145084A (fr)
CN (1) CN106460158A (fr)
WO (1) WO2015155275A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110318020B (zh) * 2019-08-12 2021-08-06 中国科学院宁波材料技术与工程研究所 高温自润滑Mo-V-N复合涂层、其制备方法及应用
US11959041B2 (en) * 2022-08-31 2024-04-16 Robert Bosch Gmbh Tribological system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10234588A1 (de) * 2002-07-30 2004-02-19 Robert Bosch Gmbh Bauteil eines Verbrennungsmotors mit einem tribologisch beanspruchten Bauelement
US7373873B2 (en) * 2004-03-29 2008-05-20 David Maslar Low friction, high durability ringless piston and piston sleeve
US10041017B2 (en) * 2012-03-12 2018-08-07 Oerlikon Surface Solutions Ag, Pfäffikon Coating with enhanced sliding properties
JP6396903B2 (ja) * 2012-08-29 2018-09-26 エーリコン・サーフェス・ソリューションズ・アーゲー・プフェフィコン 摩擦低減特性および摩耗低減特性が強化されたアークｐｖｄコーティング

Also Published As

Publication number Publication date
WO2015155275A1 (fr) 2015-10-15
CN106460158A (zh) 2017-02-22
KR20160145084A (ko) 2016-12-19
JP2017514017A (ja) 2017-06-01
US20170211174A1 (en) 2017-07-27

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