CN110218962A - A kind of wear-resistant self-lubricating chromium carbide cermet composite coating and preparation method thereof - Google Patents
A kind of wear-resistant self-lubricating chromium carbide cermet composite coating and preparation method thereof Download PDFInfo
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- CN110218962A CN110218962A CN201910533266.5A CN201910533266A CN110218962A CN 110218962 A CN110218962 A CN 110218962A CN 201910533266 A CN201910533266 A CN 201910533266A CN 110218962 A CN110218962 A CN 110218962A
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- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
Abstract
The invention discloses a kind of wear-resistant self-lubricating chromium carbide cermet composite coating and preparation method thereof, preparation process are as follows: 1, powder composition；2, mechanical mixture；3, supersonic flame spraying.Wear-resistant component is NiCr-Cr in powder composition selected by the present invention3C2, using NiCr as bonding agent, with Cr3C2For reinforced phase, Cr is avoided3C2It decomposes and its aoxidizes in spraying process, powder size is 15~45 microns；Antifriction component is the MoS of sheet2, it is coated using Ni powder, prevents from aoxidizing in spraying process, choice of powder granularity is 45~90 microns.Coating consistency of the invention is high, and bond strength is high, and carbide scaling loss is less.
Description
Technical field
The invention belongs to field of metal surface treatment technology, and in particular to a kind of wear-resistant self-lubricating chromium carbide metal pottery
Porcelain composite coating and preparation method thereof.
Background technique
Plasma spray technology is in works such as aerospace, petrochemical industry, mechano-electronic, thermal power generation, automobile shipbuilding, Ferrous Metallurgys
Industry field using increasingly extensive, it is desirable that coating can satisfy harsh use environment, and extend as far as possible service life.Thermal jet
Apply NiCr-Cr3C2Coating is applied to hot operation because still having good wear-resisting, anti-oxidant, corrosion resistance under its high temperature more
Wear working condition under state.As aeronautical and space technology continues to develop, a kind of wear-resistant self-lubricating for taking into account low-friction coefficient is needed
Coating.
Summary of the invention
The purpose of the present invention is to provide a kind of wear-resistant self-lubricating chromium carbide cermet composite coating and its preparations
Method, to overcome the problems of the above-mentioned prior art, coating consistency of the invention is high, and bond strength is high, carbide scaling loss
It is less, wherein the Binder Phase metallic nickel added has the effect of toughening, the bond strength and shock resistance of coating can be improved simultaneously
Toughness.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of wear-resistant self-lubricating chromium carbide cermet composite coating, based on mass fraction, including following raw material:
NiCr-Cr3C2Powder 76%-92%, Ni packet MoS2Powder 8%-24%；
The NiCr-Cr3C2Powder includes NiCr and Cr3C2, NiCr is as bonding agent, Cr3C2As hard phase, wherein
The mass percent of NiCr is 25%, Cr3C2Mass percent be 75%；
The Ni packet MoS2Powder includes Ni and MoS2, Ni is as bonding agent, MoS2As lubrication phase, the wherein quality of Ni
Percentage is 75%, molybdenum disulfide MoS2As lubrication phase, MoS2Mass percent be 25%.
Further, NiCr-Cr3C2Powder size is 15~45 μm, and it is fine and close for reunion sintering and plasma to make powder mode
Change.
Further, Ni packet MoS2Powder size is 45~90 μm, makes powder mode as sintering of reuniting.
A kind of preparation method of wear-resistant self-lubricating chromium carbide cermet composite coating, comprising the following steps:
1) matrix surface pre-processes
Basis material is refined first, guarantees substrate material surface flatness while removing surface scale；So
Ultrasonic cleaning is successively carried out using acetone and alcohol afterwards；Blasting treatment is finally carried out, after sandblasting, is blown off with compressed air
Substrate material surface remains sand grains；
2) powder is mixed
The NiCr-Cr for being 76%-92% by mass percent3C2The Ni packet that powder and mass percent are 8%-24%
MoS2Powder is added in mixing equipment, is added alcohol as liquid medium and is carried out wet mixing, dry after wet mixing, is obtained
NiCr-Cr3C2/Ni-MoS2Mixed-powder；
3) preparation of cermet composite coating
Basis material is preheated with supersonic flame, preheating temperature is 100~200 DEG C；Then supersonic speed is used again
Flame spray device sprays NiCr-Cr to the substrate material surface that step 1) obtains3C2/Ni-MoS2Mixed-powder is to get wear-resisting
Self-lubricating chromium carbide cermet composite coating.
Further, in step 1) after blasting treatment substrate material surface roughness less than 10 μm.
Further, the revolving speed for mixing powder in step 2) when wet mixing is 60~80r/min, and mixing time is 8~10h.
Further, drying temperature is 120~140 DEG C in step 2), time 4h.
Further, in step 3) spraying process, basis material is cooled down by blowing compressed air, guarantees matrix material
Material temperature degree is no more than 150 DEG C.
Further, step 3) moderate supersonic speed flame-spraying parameter are as follows: combustion gas when spraying is industrial propane flammable gas, pressure
Control is 0.40MPa；Combustion-supporting gas is industrial oxygen, pressure 0.90MPa；Powder feeding gas be industrial nitrogen, pressure be 0.4~
0.48MPa, flow 18L/min, spray distance 180mm, powder feeding rate 41.2g/min.
Further, step 3) coating thickness is 0.2~0.3mm.
Compared with prior art, the invention has the following beneficial technical effects:
The present invention is in NiCr-Cr3C2Ni packet MoS is introduced in powder2Powder obtains the compound painting of wear-resistant self-lubricating cermet
Layer, wear-resistant component is NiCr-Cr in selected powder composition3C2, using NiCr as bonding agent, with Cr3C2For reinforced phase, avoid
Cr3C2It decomposes and its aoxidizes in spraying process；Antifriction component is the MoS of sheet2, it is coated using Ni powder, is prevented
It is aoxidized in spraying process, in addition Cr3C2For typical ceramic phase, have the function of increasing hardness and strength；NiCr is as bonding
Phase, can be Cr3C2It is preferably bonded together, further increases intensity；MoS2It is common self-lubricating solid agent, material is wide
It is general and have very strong economy, add in original NiCr-Cr3C2The coefficient of friction of coating can be substantially reduced in powder, risen
To antifriction effect, three is integrated, and makes the coating on retaining original good performance basis, can also improve coating oneself
Greasy property reduces coefficient of friction, reduces friction heat production, reduces frictionally damage, and gained coating consistency is high, and bond strength is high,
Carbide scaling loss is less.
Further, by selecting suitable powder diameter that can better ensure that the powder stream in supersonic flame spraying
Dynamic property, and then the coating being had excellent performance.If powder diameter is too small, burning can be caused under spraying high temperature, it is ablated fall；
If powder diameter is excessive, rifle can be blocked up and cannot adequately be melted into semi-molten state, can all influence the comprehensive performance of coating,
And that selects makes powder mode and can better ensure that powder flowbility and semi-molten state in supersonic flame spraying, allows raw material
As few as possible is oxidized.
The present invention uses NiCr-Cr3C2With Ni packet MoS2It is compound, using the method for supersonic flame spraying in basis material
Surface is prepared using NiCr as bonding agent, Cr3C2Reinforced phase, by MoS2Low-friction coefficient and Ni high-ductility, realize coating
Self-lubricating and pore self-sealing in wear process are played the role of wear-resisting and antifriction, while being strengthened by the high tenacity of W metal
Ceramic material, in addition the present invention is modified substrate material surface, and under the same conditions, 8%Ni packet MoS is added in coating2Mill
Weight losses is reduced to 39.6g by 47.3g, and coefficient of friction drops to 0.50 by 0.72, and 24%Ni packet MoS is added2Wear weight loss by
47.3g is reduced to 30.3g, and coefficient of friction drops to 0.45 by 0.72, with Ni packet MoS2Increase, weight-loss ratio reduces, and wearability increases
Add.
Detailed description of the invention
Fig. 1 is composite coating micro-organization chart made from the embodiment of the present invention 1, wherein (a) is sample 8wt.% low power,
(b) sample 8wt.% high power；
Fig. 2 is composite coating micro-organization chart made from the embodiment of the present invention 2, wherein (a) is sample 16wt.% low power,
(b) sample 16wt.% high power；
Fig. 3 is composite coating micro-organization chart made from the embodiment of the present invention 3, wherein (a) is sample 24wt.% low power,
(b) sample 24wt.% high power.
Specific embodiment
Embodiments of the present invention are described in further detail below:
It is a kind of can stable military service at high operating temperatures wear-resistant self-lubricating NiCr-Cr3C2/Ni-MoS2The compound painting of cermet
Layer, the cermet composite coating is with NiCr-Cr3C2Powder is wear-resistant component, wherein Ni-based solid solution Ni (20Cr) is as viscous
Agent is connect, the mass percent of NiCr is 25%, chromium carbide Cr3C2As hard phase, Cr3C2Mass percent be 75%, play
Wear-resistant effect；With Ni packet MoS2For antifriction component, nickel powder is 75% as bonding agent, the mass percent of Ni, molybdenum disulfide
MoS2As lubrication phase, MoS2Mass percent be 25%, prevent MoS2Decompose oxidation.
NiCr-Cr3C2Powder size is 15~45 μm, makes powder mode as sintering and the plasma densification of reuniting；Ni packet MoS2
Powder size is 45~90 μm, makes powder mode as sintering of reuniting.
A kind of wear-resistant self-lubricating NiCr-Cr3C2/Ni-MoS2The preparation method of cermet composite coating, including following step
It is rapid:
1, matrix surface pre-processes
Basis material Max300 is refined using grinding machine first, guarantees substrate surface while removing surface scale
Flatness；Then ultrasonic cleaning is successively carried out using acetone and alcohol；Blasting treatment is finally carried out, sandblasting rear surface is equal
Even, roughness should be suitable for, less than 10 μm.After sandblasting, substrate surface residual sand grains is blown off with compressed air.
2, powder is mixed
It is respectively the NiCr-Cr of 92wt.%, 84wt.%, 76wt.% by mass percent3C2Powder and remaining Ni packet
MoS2Powder is added in V-type batch mixer, is added suitable alcohol as liquid medium and is carried out wet mixing, can be effectively prevented
Ni packet MoS2Powder Oxidation, and the uniformity and dispersibility of two kinds of powdered ingredients can be improved, the revolving speed for mixing powder is 60~80r/
Min, mixing time are 8~10h, and end, which is placed in baking oven, to be dried, and temperature is 120~140 DEG C, time 4h.
3, the preparation of cermet composite coating
Basis material is preheated with supersonic spray gun, preheating temperature is 100~200 DEG C；Then again using super
Velocity of sound flame spray device sprays NiCr-Cr to substrate surface3C2/Ni-MoS2Mixed-powder, be made coating layer thickness be 0.2~
0.3mm。
In spraying process, matrix overheating deforming, blowing compressed air cool down substrate in order to prevent, guarantee substrate temperature
No more than 150 DEG C；Supersonic flame spraying parameter are as follows: combustion gas when spraying is industrial propane flammable gas, when experiment pressure control be
0.40MPa；Combustion-supporting gas is industrial oxygen, pressure 0.90MPa；Powder feeding gas be industrial nitrogen, pressure be 0.4~
0.48MPa, flow 18L/min, spray distance 180mm, powder feeding rate 41.2g/min.
Below with reference to embodiment, the invention will be described in further detail:
Embodiment 1
The wear-resistant self-lubricating NiCr-Cr3C2/Ni-MoS2The preparation method of cermet composite coating, including following step
It is rapid:
1) matrix surface pre-processes
Basis material is refined using grinding machine first, guarantees that substrate surface is smooth while removing surface scale
Degree；Then ultrasonic cleaning is successively carried out using acetone and alcohol；Blasting treatment is finally carried out, sandblasting rear surface is uniform, slightly
Rugosity should be suitable for, less than 10 μm.After sandblasting, substrate surface residual sand grains is blown off with compressed air.
2) powder is mixed
The 92wt.%NiCr-Cr for being by mass percent3C2Powder and 8wt.%Ni packet MoS2Powder is added to V-type mixing
In machine, a certain amount of alcohol is added as liquid medium and carries out wet mixing, can be effectively prevented Ni packet MoS2Powder Oxidation, can
To improve the uniformity and dispersibility of two kinds of powdered ingredients, the revolving speed for mixing powder is 60r/min, mixing time 8h, terminates postposition
It is dried in baking oven, temperature is 120 DEG C, time 4h.
3) preparation of cermet composite coating
Basis material is preheated with supersonic spray gun, preheating temperature is 100 DEG C；Then again using supersonic speed fire
Flame spraying equipment sprays NiCr-Cr to substrate surface3C2/Ni-MoS2Mixed-powder, it is 0.2mm that coating layer thickness, which is made,.It is spray coated
Cheng Zhong, matrix overheating deforming, blowing compressed air cool down substrate in order to prevent, guarantee that substrate temperature is no more than 150 DEG C.
Supersonic flame spraying parameter are as follows: combustion gas when spraying is industrial propane flammable gas, when experiment pressure control be
0.40MPa；Combustion-supporting gas is industrial oxygen, pressure 0.90MPa；Powder feeding gas is industrial nitrogen, pressure 0.4MPa, flow
For 18L/min, spray distance 180mm, powder feeding rate 41.2g/min.
As seen from Figure 1, coating NiCr-Cr3C2/Ni-MoS2Two-phase is uniformly distributed, and is tightly combined.To being added to 8%
Ni-MoS2Coating carries out respective performances and tests to obtain: micro-vickers hardness 718.5, anchoring strength of coating 53.34MPa, surely
Determining friction factor is 0.50, than not adding MoS2The friction factor of coating reduces 30.5%, and properties of antifriction and wear resistance is good.
Embodiment 2
The wear-resistant self-lubricating NiCr-Cr3C2/Ni-MoS2The preparation method of cermet composite coating, including following step
It is rapid:
1) matrix surface pre-processes
Basis material is refined using grinding machine first, guarantees that substrate surface is smooth while removing surface scale
Degree；Then ultrasonic cleaning is successively carried out using acetone and alcohol；Blasting treatment is finally carried out, sandblasting rear surface is uniform, slightly
Rugosity should be suitable for, less than 10 μm.After sandblasting, substrate surface residual sand grains is blown off with compressed air.
2) powder is mixed
The 84wt.%NiCr-Cr for being by mass percent3C2Powder and 16wt.%Ni packet MoS2It is mixed that powder is added to V-type
In material machine, a certain amount of alcohol is added as liquid medium and carries out wet mixing, can be effectively prevented Ni packet MoS2Powder Oxidation,
The uniformity and dispersibility of two kinds of powdered ingredients can be improved, mix powder revolving speed be 70r/min, mixing time 9h, after
It is placed in baking oven and is dried, temperature is 130 DEG C, time 4h.
3) preparation of cermet composite coating
Basis material is preheated with supersonic spray gun, preheating temperature is 150 DEG C；Then again using supersonic speed fire
Flame spraying equipment sprays NiCr-Cr to substrate surface3C2/Ni-MoS2Mixed-powder, it is 0.25mm that coating layer thickness, which is made,.It is spray coated
Cheng Zhong, matrix overheating deforming, blowing compressed air cool down substrate in order to prevent, guarantee that substrate temperature is no more than 150 DEG C.
Supersonic flame spraying parameter are as follows: combustion gas when spraying is industrial propane flammable gas, when experiment pressure control be
0.40MPa；Combustion-supporting gas is industrial oxygen, pressure 0.90MPa；Powder feeding gas is industrial nitrogen, pressure 0.45MPa, stream
Amount is 18L/min, spray distance 180mm, powder feeding rate 41.2g/min.
As seen from Figure 2, coating NiCr-Cr3C2/Ni-MoS2Two-phase is uniformly distributed, and is tightly combined, the MoS of brilliant white2
It is mutually relatively more.To being added to 16%Ni-MoS2Coating carries out respective performances and tests to obtain: micro-vickers hardness 718.5 applies
Layer bond strength is 54.10MPa, and stablizing friction factor is 0.45, than not adding MoS2The friction factor of coating reduces
37.5%, properties of antifriction and wear resistance is good.
Embodiment 3
The wear-resistant self-lubricating NiCr-Cr3C2/Ni-MoS2The preparation method of cermet composite coating, including following step
It is rapid:
1) matrix surface pre-processes
Basis material is refined using grinding machine first, guarantees that substrate surface is smooth while removing surface scale
Degree；Then ultrasonic cleaning is successively carried out using acetone and alcohol；Blasting treatment is finally carried out, sandblasting rear surface is uniform, slightly
Rugosity should be suitable for, less than 10 μm.After sandblasting, substrate surface residual sand grains is blown off with compressed air.
2) powder is mixed
The 76wt.%NiCr-Cr for being by mass percent3C2Powder and 24wt.%Ni packet MoS2It is mixed that powder is added to V-type
In material machine, a certain amount of alcohol is added as liquid medium and carries out wet mixing, can be effectively prevented Ni packet MoS2Powder Oxidation,
The uniformity and dispersibility of two kinds of powdered ingredients can be improved, mix powder revolving speed be 80r/min, mixing time 10h, after
It is placed in baking oven and is dried, temperature is 140 DEG C, time 4h.
3) preparation of cermet composite coating
Basis material is preheated with supersonic spray gun, preheating temperature is 200 DEG C；Then again using supersonic speed fire
Flame spraying equipment sprays NiCr-Cr to substrate surface3C2/Ni-MoS2Mixed-powder, it is 0.3mm that coating layer thickness, which is made,.It is spray coated
Cheng Zhong, matrix overheating deforming, blowing compressed air cool down substrate in order to prevent, guarantee that substrate temperature is no more than 150 DEG C.
Supersonic flame spraying parameter are as follows: combustion gas when spraying is industrial propane flammable gas, when experiment pressure control be
0.40MPa；Combustion-supporting gas is industrial oxygen, pressure 0.90MPa；Powder feeding gas is industrial nitrogen, pressure 0.48MPa, stream
Amount is 18L/min, spray distance 180mm, powder feeding rate 41.2g/min.
As seen from Figure 3, coating NiCr-Cr3C2/Ni-MoS2Two-phase is uniformly distributed, and is tightly combined, the MoS of brilliant white2
It is mutually more.To being added to 24%Ni-MoS2Coating carries out respective performances and tests to obtain: micro-vickers hardness 659.72, coating
Bond strength is 64.13MPa, and stablizing friction factor is 0.48, than not adding MoS2The friction factor of coating reduces 33.3%,
Properties of antifriction and wear resistance is good.
Claims (10)
1. a kind of wear-resistant self-lubricating chromium carbide cermet composite coating, which is characterized in that based on mass fraction, including with
Lower raw material: NiCr-Cr3C2Powder 76%-92%, Ni packet MoS2Powder 8%-24%；
The NiCr-Cr3C2Powder includes NiCr and Cr3C2, NiCr is as bonding agent, Cr3C2As hard phase, wherein NiCr
Mass percent is 25%, Cr3C2Mass percent be 75%；
The Ni packet MoS2Powder includes Ni and MoS2, Ni is as bonding agent, MoS2As lubrication phase, wherein the quality percentage of Ni
Than being 75%, molybdenum disulfide MoS2As lubrication phase, MoS2Mass percent be 25%.
2. a kind of wear-resistant self-lubricating chromium carbide cermet composite coating according to claim 1, which is characterized in that
NiCr-Cr3C2Powder size is 15~45 μm, makes powder mode as sintering and the plasma densification of reuniting.
3. a kind of wear-resistant self-lubricating chromium carbide cermet composite coating according to claim 1, which is characterized in that
Ni packet MoS2Powder size is 45~90 μm, makes powder mode as sintering of reuniting.
4. a kind of preparation method of wear-resistant self-lubricating chromium carbide cermet composite coating, which is characterized in that including following
Step:
1) matrix surface pre-processes
Basis material is refined first, guarantees substrate material surface flatness while removing surface scale；Then according to
It is secondary that ultrasonic cleaning is carried out using acetone and alcohol；Blasting treatment is finally carried out, after sandblasting, blows off matrix with compressed air
Material surface remains sand grains；
2) powder is mixed
The NiCr-Cr for being 76%-92% by mass percent3C2The Ni packet MoS that powder and mass percent are 8%-24%2Powder
End is added in mixing equipment, is added alcohol as liquid medium and is carried out wet mixing, dry after wet mixing, obtains NiCr-
Cr3C2/Ni-MoS2Mixed-powder；
3) preparation of cermet composite coating
Basis material is preheated with supersonic flame, preheating temperature is 100~200 DEG C；Then supersonic flame is used again
Spraying equipment sprays NiCr-Cr to the substrate material surface that step 1) obtains3C2/Ni-MoS2Mixed-powder is to get wear-resisting from profit
Sliding chromium carbide cermet composite coating.
5. a kind of preparation method of wear-resistant self-lubricating chromium carbide cermet composite coating according to claim 4,
It is characterized in that, in step 1) after blasting treatment substrate material surface roughness less than 10 μm.
6. a kind of preparation method of wear-resistant self-lubricating chromium carbide cermet composite coating according to claim 4,
It is characterized in that, the revolving speed for mixing powder in step 2) when wet mixing is 60~80r/min, mixing time is 8~10h.
7. a kind of preparation method of wear-resistant self-lubricating chromium carbide cermet composite coating according to claim 4,
It is characterized in that, drying temperature is 120~140 DEG C in step 2), time 4h.
8. a kind of preparation method of wear-resistant self-lubricating chromium carbide cermet composite coating according to claim 4,
It is characterized in that, cooling down by blowing compressed air to basis material in step 3) spraying process, guarantee basis material temperature
No more than 150 DEG C.
9. a kind of preparation method of wear-resistant self-lubricating chromium carbide cermet composite coating according to claim 4,
It is characterized in that, step 3) moderate supersonic speed flame-spraying parameter are as follows: combustion gas when spraying is industrial propane flammable gas, and pressure control is
0.40MPa；Combustion-supporting gas is industrial oxygen, pressure 0.90MPa；Powder feeding gas be industrial nitrogen, pressure be 0.4~
0.48MPa, flow 18L/min, spray distance 180mm, powder feeding rate 41.2g/min.
10. a kind of preparation method of wear-resistant self-lubricating chromium carbide cermet composite coating according to claim 4,
It is characterized in that, step 3) coating thickness is 0.2~0.3mm.
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| CN112281105B (en) * | 2020-10-23 | 2022-11-15 | 中国人民解放军陆军装甲兵学院 | Metal ceramic composite coating and preparation method and application thereof |
| CN112281105A (en) * | 2020-10-23 | 2021-01-29 | 中国人民解放军陆军装甲兵学院 | Metal ceramic composite coating and preparation method and application thereof |
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| CN114016014A (en) * | 2021-10-08 | 2022-02-08 | 江苏高润新材料有限公司 | Porous high-temperature self-lubricating wear-resistant coating and preparation method thereof |
| CN114908312A (en) * | 2022-06-28 | 2022-08-16 | 中国航发北京航空材料研究院 | High-temperature wear-resistant self-lubricating coating material, preparation method thereof, coating and preparation method thereof |
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