CN114635115A - Antifriction and wear-resistant coating with strong synergistic effect with lubricating oil friction modification additive - Google Patents

Antifriction and wear-resistant coating with strong synergistic effect with lubricating oil friction modification additive Download PDF

Info

Publication number
CN114635115A
CN114635115A CN202210278584.3A CN202210278584A CN114635115A CN 114635115 A CN114635115 A CN 114635115A CN 202210278584 A CN202210278584 A CN 202210278584A CN 114635115 A CN114635115 A CN 114635115A
Authority
CN
China
Prior art keywords
resistant coating
wear
coating
substrate
modtc
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
CN202210278584.3A
Other languages
Chinese (zh)
Other versions
CN114635115B (en
Inventor
田耘
杨东杰
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.)
Shandong University
Original Assignee
Shandong University
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 Shandong University filed Critical Shandong University
Priority to CN202210278584.3A priority Critical patent/CN114635115B/en
Publication of CN114635115A publication Critical patent/CN114635115A/en
Application granted granted Critical
Publication of CN114635115B publication Critical patent/CN114635115B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • C23C14/34—Sputtering
    • C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
    • 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
    • C23C14/0021—Reactive sputtering or evaporation
    • C23C14/0036—Reactive sputtering
    • 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
    • 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
    • C23C14/0676—Oxynitrides
    • 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
    • C23C14/58—After-treatment

Abstract

The invention discloses a preparation method and application of a wear-resistant coating with strong synergistic effect with a lubricating oil friction modification additive MoDTC. The method is to deposit a hard wear-resistant coating on a substrate, or to ensure that the substrate meets certain mechanical properties through surface treatment and heat treatment, and then to deposit a Ti-O-N coating on the surface of the substrate, so as to obtain the antifriction wear-resistant coating. The Ti-O-N coating provided by the invention has strong synergistic interaction with the friction modifier MoDTC, and promotes MoS in the MoDTC friction film2The friction reducing efficiency of the friction modifying additive MoDTC in the lubricating oil is enhanced.

Description

Antifriction and wear-resistant coating with strong synergistic effect with lubricating oil friction modification additive
Technical Field
The invention relates to the technical field of antifriction and wear-resistant coatings, in particular to an antifriction and wear-resistant coating which has strong synergistic interaction with a lubricating oil friction modification additive.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The friction reducing and wear resisting coating is coated on the surface of the mechanical moving part and the lubricating oil is used to greatly improve the tribological performance of the mechanical part. Molybdenum dialkyldithiocarbamates (MoDTC) are a commonly used friction in lubricating oilsA modifying additive. The friction reducing efficiency of the friction reducing film formed by MoDTC on the surface of a mechanical moving part is influenced by the components, particularly the proportion of Mo-containing compounds in the friction film. MoS in Friction film2The increase in content is advantageous for obtaining a lower coefficient of friction, whereas MoO3Or FeMoO4Is not favorable for reducing the friction coefficient, and MoO3Or FeMoO4Wear of the mechanically moving parts and surface coatings is exacerbated under certain conditions.
The decomposition of the MoDTC and the formation of a friction film thereof can be obviously influenced by the service environment of mechanical moving parts and friction pair materials, and further influence the decomposition degree and the proportion of decomposition products. After the components of the wear-resistant coating are modified, the composition of the MoDTC friction film on the surface of the coating can be optimized, and the friction reducing active component MoS in the friction film is improved2Thereby enhancing the synergistic effect between the antifriction wear-resistant coating and the MoDTC and reducing the wear and friction of the surface of the mechanical moving part coated with the coating. Therefore, the regulation and control of the components of the antifriction wear-resistant coating and the synergistic action behavior of the friction modifier MoDTC are effective ways for improving the oil lubrication tribology performance of the mechanical motion part coated with the antifriction wear-resistant coating.
Disclosure of Invention
MoDTC is used as a common lubricating oil friction modification additive, has good antifriction performance for a traditional steel/steel friction pair, and can reduce the friction coefficient of the steel/steel friction pair to 0.04. However, MoDTC has a more complicated decomposition process, and is easily affected by the surface hardness of the friction pair and the chemical state of the surface of the friction pair. The plated hard wear-resistant coating can meet the hardness requirement of the surface of a friction pair, reduce surface wear, provide a stable attached surface for a MoDTC friction film, and the high hardness of the surface is favorable for improving the coverage rate of the MoDTC friction film, so that the friction reduction efficiency of the MoDTC is improved. However, the complicated decomposition process of the MoDTC makes the interaction between the MoDTC and the coating uncertain, which leads to the reduced friction reducing efficiency of the MoDTC and even influences the tribological performance of the friction pair, for example, the MoDTC can generate unfavorable friction chemical reaction with diamond-like carbon coating (DLC), and the abrasion of the DLC coating is remarkably increased. In view of the above problems, the present invention providesAn antifriction wear-resistant coating with strong synergistic effect with MoDTC is provided. According to the experimental result, the MoDTC and the Ti-O-N coating have stronger tribochemical reaction interaction, and the Ti-O-N coating can inhibit MoO in the MoDTC friction film through the tribochemical reaction3/FeMoO4The generation of the friction reducing active ingredient MoS in the MoDTC friction film is improved2In order to enhance the friction reducing efficiency of the friction modifying additive MoDTC in the lubricating oil.
In order to achieve the above technical effects, the present application provides the following technical solutions:
an antifriction and wear resistant coating: the hard coating is deposited on the substrate or the substrate meets certain mechanical properties through surface treatment and heat treatment technology, and then the Ti-O-N coating is deposited on the surface of the substrate.
Further, the hard wear-resistant coating can be a boride coating, a nitride coating, a carbide coating or other hard wear-resistant coatings.
Further, the substrate is a mechanical part that requires oil lubrication to reduce frictional wear.
Further, the deposition method in the present application is magnetron sputtering, and preferably, the magnetron sputtering specifically includes: using AlMgB14-TiB2Depositing an Al-Mg-Ti-B hard layer with high hardness and elastic modulus on a substrate by a target and a direct current magnetron sputtering technology, and then depositing a Ti-O-N active layer on the surface of the hard layer by a reactive magnetron sputtering technology.
Further, the method for depositing the Al-Mg-Ti-B hard layer on the substrate according to the embodiments of the present application is: using AlMgB14-TiB2Performing direct-current magnetron sputtering on the target in an argon atmosphere; the parameters used for magnetron sputtering are as follows: background vacuum is less than or equal to 3 multiplied by 10- 4Pa, target power 120W, sputtering time 120-.
Further, the method for depositing the Ti-O-N active layer on the Al-Mg-Ti-B hard layer described in the examples of the present application is: carrying out direct-current reactive magnetron sputtering on a high-purity titanium target in a mixed atmosphere of argon, oxygen and nitrogen; the parameters used for magnetron sputtering were: background vacuum is less than or equal to 3 multiplied by 10-4Pa, the target power is 120W, the sputtering time is 10-15min, the sputtering pressure is 0.3-0.8Pa, the introduced argon flow is 40-50sccm, the oxygen flow is 0.3-0.8sccm, and the nitrogen flow is 1-3 sccm.
Further, AlMgB described in the examples of this application14-TiB2The thickness of the target and the high-purity titanium target is 3-6mm, and the diameter is 40-55 mm.
The antifriction and wear-resistant coating is applied to a mechanical moving part which is coated with lubricating oil containing MoDTC.
The workpiece comprises a substrate, the antifriction and wear-resistant coating deposited on the substrate and lubricating oil coated on the antifriction and wear-resistant coating, wherein the lubricating oil contains MoDTC.
Compared with the prior art, the invention achieves the following beneficial results:
(1) the invention provides a wear-resistant coating with strong synergistic effect with a friction modifier MoDTC, which can improve the tribological performance of a friction pair coated with the wear-resistant coating under oil lubrication. The antifriction wear-resistant coating comprises a hard wear-resistant coating and a Ti-O-N coating, or a friction pair surface hardened by surface technology and heat treatment and the Ti-O-N coating. The hard layer has good mechanical property, ensures the combination with the substrate and the Ti-O-N active layer, plays a role in bearing load, provides a stable attachment surface for the friction film, and is beneficial to improving the decomposition degree of MoDTC on the surface and the thickness of the friction film. The Ti-O-N coating on the surface layer has good friction catalysis effect with MoDTC, and can inhibit MoO in the friction film3/FeMoO4To increase the friction reducing component MoS2The ratio of (a) to (b).
(2) The common single-layer hard coating cannot ensure good compatibility with MoDTC, and the overall tribological performance of the friction pair may be reduced; in the application, a stronger tribochemical action exists between Ti-O-N and MoDTC, the action does not need the high thickness of Ti-O-N, a Ti-O-N coating with the thickness of 200nm can play a corresponding role, and the influence of the thickness on the overall mechanical property of the coating is small (the thickness of the hard wear-resistant coating generally exceeds 1000 nm).
(3) The antifriction and wear-resistant coating can ensure the coating and the substrateOn the premise of combination and bearing capacity of the composition, MoS in the MoDTC friction film is remarkably improved2And the friction reduction efficiency of MoDTC.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application, and the description of the exemplary embodiments and illustrations of the application are intended to explain the application and are not intended to limit the application.
Fig. 1 is a process flow diagram of a wear-resistant coating prepared in example 3 of the present invention.
FIG. 2 is a plot of the coefficient of friction curve of the single-layer wear-resistant coating prepared in example 1 of the present invention under lubrication with MoDTC-containing PAO base oil and a composition characterization of the tribofilm in the wear scar.
FIG. 3 is a friction coefficient curve of the wear-resistant coating prepared in example 2 of the invention under lubrication of PAO base oil containing MoDTC and composition characterization of a friction film in a grinding mark.
FIG. 4 is a graph of the friction coefficient curve of the wear-resistant coating prepared in example 3 of the present invention lubricated by a PAO base oil containing MoDTC and a characterization of the components of a friction film in a wear scar.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described above, the relatively complex decomposition mechanism of MoDTC makes it susceptible to the chemical state of the surface of the wear-resistant coating, resulting in significant differences in the components and tribological properties of the formed friction-reducing tribofilm, which limits the widespread use of MoDTC. Meanwhile, based on the decomposition mechanism of MoDTC, the surface chemical state of the wear-resistant coating deposition process can be changed, the components of the MoDTC friction film are optimized, the synergistic effect between the wear-resistant coating and the MoDTC is enhanced, and the friction reduction efficiency of the friction film is improved. The invention provides a preparation method of a wear-resistant coating with strong synergistic effect with a friction modifier MoDTC, and the method is further explained.
As a further technical scheme, the substrate is a mechanical part and a friction pair which need good mechanical properties, particularly surface mechanical properties, and oil lubrication to reduce friction, and the substrate material can be steel, aluminum alloy or even ceramic material such as GCr15, AISI 52100, 42CrMo and the like.
As a further solution, said substrate may be suitably pretreated to ensure good bonding of the coating.
As a further technical scheme, the method for depositing the multilayer wear-resistant coating on the substrate is magnetron sputtering, and specifically comprises the following steps: using AlMgB14-TiB2Depositing an Al-Mg-Ti-B hard layer with high hardness and elastic modulus on a substrate by a target and a direct current magnetron sputtering technology, and then depositing a Ti-O-N active layer on the surface of the hard layer by a reactive magnetron sputtering technology.
Compared with other deposition methods, the magnetron sputtering method has the advantages of good coating compactness and uniformity, high deposition rate and accurate control of the thickness of the deposited coating.
As a further technical scheme, the method for depositing the Al-Mg-Ti-B hard layer on the substrate comprises the following steps: using AlMgB14-TiB2The target is subjected to direct-current magnetron sputtering in an argon atmosphere. The parameters used for magnetron sputtering are as follows: background vacuum is less than or equal to 3 multiplied by 10- 4Pa, target power 120W, sputtering time 120-.
As a further technical scheme, the method for depositing the Ti-O-N active layer on the Al-Mg-Ti-B hard layer comprises the following steps: and (3) carrying out direct-current reactive magnetron sputtering by using a high-purity titanium target under the mixed atmosphere of argon, oxygen and nitrogen. The parameters used for magnetron sputtering were: background vacuum is less than or equal to 3 multiplied by 10-4Pa, the target power is 120W, the sputtering time is 10-15min, the sputtering pressure is 0.3-0.8Pa, the introduced argon flow is 40-50sccm, the oxygen flow is 0.3-0.8sccm, and the nitrogen flow is 1-3 sccm.
As a further technical scheme, the AlMgB14-TiB2The thickness of the target and the high-purity titanium target is 3-6mm, and the diameter is 40-55 mm.
The antifriction and wear-resistant coating is applied to a mechanical moving part which is coated with lubricating oil containing MoDTC.
The workpiece comprises a substrate, the antifriction and wear-resistant coating deposited on the substrate and lubricating oil coated on the antifriction and wear-resistant coating, wherein the lubricating oil contains MoDTC.
As a further technical scheme, the substrate is a mechanical part and a friction pair which need good mechanical properties, particularly surface mechanical properties, and oil lubrication to reduce friction, and the substrate material can be steel, aluminum alloy or even ceramic material such as GCr15, AISI 52100, 42CrMo and the like.
As a further technical scheme, the lubricating oil can be lubricating oil containing MoDTC and base oil only or full-component oil containing MoDTC.
As a further technical scheme, the thickness of the antifriction wear-resistant coating is regulated and controlled according to the combination of the hard layer and the substrate and the like for the hard layer, the thickness of the hard layer is about 2 mu m, and the thickness of the hard layer obtained by other surface treatment or heat treatment can reach millimeter level; good tribochemical catalysis can be ensured for the Ti-O-N active layer with the thickness of about 200nm, and the thickness does not generate adverse effect on the overall mechanical property of the coating.
The invention is further described below with reference to fig. 1-4.
Example 1
A preparation method of a multi-layer wear-resistant coating with strong synergistic effect with a friction modifier comprises the following steps:
(1) polishing a GCr15 bearing steel sheet, ultrasonically cleaning the steel sheet for 10min by absolute ethyl alcohol, and drying the steel sheet subjected to ultrasonic cleaning by using nitrogen;
(2) will exceedPlacing the steel sheet after sound cleaning and drying into a coating cavity of a magnetron sputtering device, and vacuumizing until the vacuum in the cavity is less than or equal to 3 multiplied by 10-4Pa, then the steel sheet substrate is heated to 400 ℃ and this temperature is maintained during the deposition of the coating;
(3) argon with the flow rate of 45sccm is introduced into the chamber to be used as protection and sputtering atmosphere, and AlMgB is used14-TiB2And carrying out direct current magnetron sputtering on the target. The sputtering parameters are as follows: the target power is 120W, the sputtering time is 120min, and the air pressure in the chamber during sputtering is 0.5 Pa. Stopping heating the substrate after sputtering is finished, ventilating the cavity after the temperature is reduced, opening the cavity and taking out the prepared product to obtain the product.
Example 2
A preparation method of a multi-layer wear-resistant coating with strong synergistic effect with a friction modifier comprises the following steps:
(1) polishing a GCr15 bearing steel sheet, ultrasonically cleaning the steel sheet by absolute ethyl alcohol for 10min, and drying the ultrasonically cleaned steel sheet by using nitrogen;
(2) placing the steel sheet after ultrasonic cleaning and drying into a coating cavity of a magnetron sputtering device, and vacuumizing until the vacuum in the cavity is less than or equal to 3 multiplied by 10-4Pa, then the steel sheet substrate is heated to 400 ℃ and this temperature is maintained during the deposition of the coating;
(3) 45sccm argon gas is introduced into the chamber as a protective and sputtering atmosphere, 0.5sccm oxygen gas and 1sccm nitrogen gas are continuously introduced, and a high-purity titanium target is used for performing direct-current reactive magnetron sputtering in a mixed atmosphere. The sputtering parameters are as follows: the target power is 120W, the sputtering time is 60min, and the air pressure in the chamber is kept at 0.5Pa during the sputtering period. And stopping heating the substrate after sputtering is finished, ventilating the cavity and opening the cavity after the temperature of the substrate is reduced, and taking out the prepared sample to obtain the sample.
Example 3
A preparation method of a multi-layer wear-resistant coating with strong synergistic effect with a friction modifier comprises the following steps:
(1) polishing a GCr15 bearing steel sheet, ultrasonically cleaning the steel sheet by absolute ethyl alcohol for 10min, and drying the ultrasonically cleaned steel sheet by using nitrogen;
(2) placing the steel sheet after ultrasonic cleaning and drying into a coating cavity of a magnetron sputtering device, and vacuumizing until the vacuum in the cavity is less than or equal to 3 multiplied by 10-4Pa, then the steel sheet substrate is heated to 400 ℃ and this temperature is maintained during the deposition of the coating;
(3) argon gas with the flow rate of 45sccm is introduced into the chamber to be used as a protective atmosphere and a sputtering atmosphere, and AlMgB is used14-TiB2And carrying out direct current magnetron sputtering on the target. The sputtering parameters are as follows: the target power is 120W, the sputtering time is 120min, and the air pressure in the chamber during sputtering is 0.5 Pa. After the Al-Mg-Ti-B hard layer is sputtered, keeping the temperature of the steel sheet substrate at 400 ℃;
(4) and (4) after the hard layer is sputtered, depositing a Ti-O-N active layer on the hard layer obtained in the process (3) by using a high-purity titanium target through a direct-current reactive magnetron sputtering technology. The sputtering parameters are as follows: the flow rates of the introduced argon, nitrogen and oxygen are respectively 45sccm, 1sccm and 0.5sccm, the target power is 120W, the sputtering time is 12min, the pressure in the chamber during sputtering is 0.5Pa, and the substrate temperature is maintained at 400 ℃. And stopping heating the substrate after sputtering is finished, ventilating the cavity and opening the cavity after the temperature of the substrate is reduced, and taking out the prepared sample to obtain the target product.
Performance testing
The abradable coatings prepared in examples 1-3 were investigated for their tribological properties under lubrication with a lubricating oil containing MoDTC by a UMT-3 friction wear tester. The lubricating oil used in the experiment was a PAO base oil containing 1 wt% MoDTC, and the test format used was a ball-and-disk unidirectional rotation friction wear test, which was performed at room temperature. Fig. 2a and fig. 3a are friction coefficient curves of the single-layer wear-resistant coatings prepared in examples 1 and 2 under oil lubrication, respectively, and it can be seen that the stable friction coefficient of the two coatings is-0.06, which is lower than the friction coefficient of the pure base oil PAO lubrication by-0.12, which indicates that the two coatings and the MoDTC have a certain synergistic effect, so that the friction coefficient of a friction pair is reduced. As shown in FIG. 2b, the surface MoDTC decomposition of the single-layer wear-resistant coating prepared in example 1 was relatively complete, but the MoDTC friction reducing film had MoO therein3Or FeMoO4The content of (A) is obviously higher than that of MoS2Of such a compositionThe friction reducing effect of the friction film is limited to a certain extent. In contrast, the single-layer wear-resistant coating in example 2 has incomplete decomposition of MoDTC on the surface, so that the friction reducing component MoS in the friction film2The total amount and the ratio are both low, which is not beneficial to improving the tribological performance under oil lubrication. FIGS. 4a and 4b are the friction coefficient curve and the friction film component of the wear-resistant coating under oil lubrication prepared in example 3, respectively, and it can be seen that the synergistic effect of the coating and MoDTC is further enhanced, so that the stable friction coefficient of the friction pair is reduced to-0.04, which is close to the stable friction coefficient of the MoDTC lubrication iron-based friction pair under the high-temperature condition (80-120 ℃). MoDTC friction film with multiple layers of wear-resistant coating surfaces prepared in example 3 and MoDTC2The compound with the highest content of Mo is beneficial to obtaining a lower stable friction coefficient. The tribological performance of the wear-resistant coatings with different structures under the lubrication of MoDTC shows that the synergistic effect between the coatings and the MoDTC can be obviously enhanced by firstly obtaining a hard layer on a substrate and depositing a Ti-O-N layer on the surface layer. The hard layer of the bottom layer can provide good mechanical property and bearing capacity, and is beneficial to improving the decomposition degree of MoDTC and the adhesion of the friction film on the surface; the Ti-O-N active layer with low thickness on the surface layer does not have adverse effect on the overall mechanical property of the coating, and MoO can be inhibited through a tribochemical reaction3/FeMoO4Increase MoS in the tribofilm2The content and the ratio of the MoDTC friction reducing film are optimized, so that the MoDTC can play a good friction reducing role at room temperature, the application range of the MoDTC is expanded, the friction reducing efficiency is improved, and the energy utilization efficiency of mechanical equipment is improved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. An antifriction wear-resistant coating is characterized in that a hard wear-resistant coating is deposited on a substrate or the substrate meets certain mechanical properties through surface treatment and heat treatment technologies, and then a Ti-O-N coating is deposited on the surface of the substrate, so that the antifriction wear-resistant coating is obtained.
2. An antifriction wear resistant coating in accordance with claim 1 wherein the hard wear resistant coating is a boride coating, a nitride coating, a carbide coating.
3. The antifriction wear coating of claim 1 wherein the substrate is a mechanical component requiring oil lubrication to reduce frictional wear.
4. Antifriction wear resistant coating according to claim 1, characterized in that the substrate is pretreated to ensure bonding of the coating.
5. The antifriction and wear-resistant coating according to claim 1, characterized in that the deposition is carried out by means of magnetron sputtering, preferably the magnetron sputtering is specifically: using AlMgB14-TiB2Depositing an Al-Mg-Ti-B hard layer with high hardness and elastic modulus on a substrate by a target and a direct current magnetron sputtering technology, and then depositing a Ti-O-N active layer on the surface of the Al-Mg-Ti-B hard layer by a reactive magnetron sputtering technology.
6. The antifriction wear resistant coating of claim 5 wherein the hard layer of Al-Mg-Ti-B is deposited on the substrate by: using AlMgB14-TiB2Performing direct-current magnetron sputtering on the target in an argon atmosphere; the parameters used in magnetron sputtering are as follows: background vacuum is less than or equal to 3 multiplied by 10-4Pa, target power 120W, sputtering time 120-.
7. The antifriction wear resistant coating of claim 6 wherein the Ti-O-N active layer is deposited on the Al-Mg-Ti-B hard layer by: carrying out direct-current reactive magnetron sputtering on a high-purity titanium target in a mixed atmosphere of argon, oxygen and nitrogen; the parameters used for magnetron sputtering were: background vacuum is less than or equal to 3 multiplied by 10-4Pa, targetThe material power is 120W, the sputtering time is 10-15min, the sputtering pressure is 0.3-0.8Pa, the introduced argon flow is 40-50sccm, the oxygen flow is 0.3-0.8sccm, and the nitrogen flow is 1-3 sccm.
8. The antifriction wear resistant coating of claim 7 wherein the AlMgB14-TiB2 target and the high purity titanium target are each 3-6mm thick and 40-55mm in diameter.
9. A workpiece comprising a substrate, a friction reducing and wear resistant coating according to any one of claims 1 to 8 deposited on the substrate and a lubricating oil applied to the friction reducing and wear resistant coating, the lubricating oil comprising molybdenum dialkyldithiocarbamate (MoDTC).
10. The workpiece according to claim 9, characterized in that the lubricating oil is a lubricating oil containing only MoDTC and base oil or a full-component lubricating oil containing MoDTC.
CN202210278584.3A 2022-03-21 2022-03-21 Antifriction and wear-resistant coating with strong synergistic effect with lubricating oil friction modification additive Active CN114635115B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210278584.3A CN114635115B (en) 2022-03-21 2022-03-21 Antifriction and wear-resistant coating with strong synergistic effect with lubricating oil friction modification additive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210278584.3A CN114635115B (en) 2022-03-21 2022-03-21 Antifriction and wear-resistant coating with strong synergistic effect with lubricating oil friction modification additive

Publications (2)

Publication Number Publication Date
CN114635115A true CN114635115A (en) 2022-06-17
CN114635115B CN114635115B (en) 2023-03-31

Family

ID=81950191

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210278584.3A Active CN114635115B (en) 2022-03-21 2022-03-21 Antifriction and wear-resistant coating with strong synergistic effect with lubricating oil friction modification additive

Country Status (1)

Country Link
CN (1) CN114635115B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694130A (en) * 1992-07-22 1994-04-05 Riken Corp Slide material and piston ring and manufacture of slide material
JP2001205103A (en) * 2000-01-27 2001-07-31 Toyota Central Res & Dev Lab Inc Photocatalytic body
CN2930928Y (en) * 2006-05-18 2007-08-08 铨宝工业股份有限公司 Abrasion resistant precision clamping head used for machine tool
FR2905124A1 (en) * 2006-08-22 2008-02-29 Ecole Nale Sup Artes Metiers Reactive spraying method for coating substrate, e.g. with titanium oxynitride, includes introducing reactive gas into spray chamber at flow rate determined by cyclic control signal
TW201211294A (en) * 2010-09-15 2012-03-16 Hon Hai Prec Ind Co Ltd Method for making housing and housing thereof
CN102586731A (en) * 2011-01-17 2012-07-18 鸿富锦精密工业（深圳）有限公司 Coated part with hard coating and preparation method thereof
CN107641795A (en) * 2017-09-30 2018-01-30 山东大学 A kind of preparation method of the anti-friction wear-resistant coating under MoDTC lubricating conditions
US20180181071A1 (en) * 2016-12-23 2018-06-28 The Swatch Group Research And Development Ltd Mother-of-pearl substrate coated with a yellow layer
CN112144027A (en) * 2020-08-10 2020-12-29 浙江工业大学 TiN deposited on stainless steel surfacexOyCoated bipolar plate material and preparation method and application thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694130A (en) * 1992-07-22 1994-04-05 Riken Corp Slide material and piston ring and manufacture of slide material
JP2001205103A (en) * 2000-01-27 2001-07-31 Toyota Central Res & Dev Lab Inc Photocatalytic body
CN2930928Y (en) * 2006-05-18 2007-08-08 铨宝工业股份有限公司 Abrasion resistant precision clamping head used for machine tool
FR2905124A1 (en) * 2006-08-22 2008-02-29 Ecole Nale Sup Artes Metiers Reactive spraying method for coating substrate, e.g. with titanium oxynitride, includes introducing reactive gas into spray chamber at flow rate determined by cyclic control signal
TW201211294A (en) * 2010-09-15 2012-03-16 Hon Hai Prec Ind Co Ltd Method for making housing and housing thereof
CN102586731A (en) * 2011-01-17 2012-07-18 鸿富锦精密工业（深圳）有限公司 Coated part with hard coating and preparation method thereof
US20180181071A1 (en) * 2016-12-23 2018-06-28 The Swatch Group Research And Development Ltd Mother-of-pearl substrate coated with a yellow layer
CN107641795A (en) * 2017-09-30 2018-01-30 山东大学 A kind of preparation method of the anti-friction wear-resistant coating under MoDTC lubricating conditions
CN112144027A (en) * 2020-08-10 2020-12-29 浙江工业大学 TiN deposited on stainless steel surfacexOyCoated bipolar plate material and preparation method and application thereof

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
D S SHESTAKOV ET AL.: ""Coefficient of friction of titanium oxynitride films deposited by hot target reactive sputtering"", 《IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING》 *
JI-ZHOU KONG ET AL.: ""Improved corrosion protection of CrN hard coating on steel sealed with TiOxNy-TiN composite layers"", 《SURFACE & COATINGS TECHNOLOGY》 *
JI-ZHOU KONG ET AL.: ""Role of atomic layer deposited TiOxNy interlayer in tribological and corrosion properties of CrN coating"", 《SURFACE & COATINGS TECHNOLOGY》 *
TAO YANG ET AL.: ""Preparation of TiOxNy/TiN Composite for Photocatalytic Hydrogen Evolution under Visible Light"", 《ROYAL SOCIETY OF CHEMISTRY》 *
ZHICHENG HUI ET AL.: ""Comparative studies of the tribological behaviors and tribo-chemical mechanisms for AlMgB14-TiB2 coatings and B4C coatings lubricated with molybdenum dialkyl-dithiocarbamate"", 《TRIBOLOGY INTERNATIONAL》 *
刘鑫等: ""含MoDTC润滑条件下掺氮Al-Mg-Ti-B-N涂层摩擦磨损机制的研究"", 《全国薄膜技术学术研讨会》 *

Also Published As

Publication number Publication date
CN114635115B (en) 2023-03-31

Similar Documents

Publication Publication Date Title
Tyagi et al. A critical review of diamond like carbon coating for wear resistance applications
US7273655B2 (en) Slidably movable member and method of producing same
RU2520245C2 (en) Sliding element, particularly, coated piston ring, and method of its fabrication
JP5920681B2 (en) Coated mold for plastic working excellent in sliding characteristics and manufacturing method thereof
EP1905863A2 (en) Slide member
CN103334106A (en) Surface-hardening treatment method of sealing pairs and friction pairs of titanium and titanium alloy ball valves
JP2000120870A (en) Piston ring
JP4359979B2 (en) Covered sliding member
JP2006138404A (en) Sliding member with excellent abrasion resistance in wet environment
CN107699859B (en) Bearing shell all-metal self-lubricating antifriction coating and preparation method thereof
JP2001064005A (en) Coated sliding member and its production
CN113621912A (en) Gradient self-lubricating composite coating and preparation method thereof
JP4201557B2 (en) Hard carbon film sliding member
JP2004137535A (en) Hard carbon film slide member
GB2303640A (en) Sliding member with film containing chromium and chromium nitride
CN114635115B (en) Antifriction and wear-resistant coating with strong synergistic effect with lubricating oil friction modification additive
CN108179390B (en) One kind [WS2/ (100-x) WS2-xWCN] n graded composite lubricant coating and preparation method thereof
JP4683288B2 (en) Sliding member
Yamamoto et al. Nano-multilayered CrN/BCN coating for anti-wear and low friction applications
JP4462077B2 (en) Combination sliding member
CN108411263B (en) Gradient composite lubricating coating and preparation method thereof
CN109957764B (en) CrSiC composite coating for water-based liquid environment and preparation method and application thereof
JP4910226B2 (en) Covered sliding parts
Haider et al. New generation of MoSx based solid lubricant coatings: recent developments and applications
GB2360790A (en) Low friction coatings produced by cathodic arc evaporation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant