CN103422047A - Preparation method for boron carbide-molybdenum composite coating layer - Google Patents
Preparation method for boron carbide-molybdenum composite coating layer Download PDFInfo
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- CN103422047A CN103422047A CN2012101486785A CN201210148678A CN103422047A CN 103422047 A CN103422047 A CN 103422047A CN 2012101486785 A CN2012101486785 A CN 2012101486785A CN 201210148678 A CN201210148678 A CN 201210148678A CN 103422047 A CN103422047 A CN 103422047A
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Abstract
The invention discloses a preparation method for a boron carbide-molybdenum (B4C-Mo) composite coating layer. The method adopts a vacuum plasma spraying technology to spray a B4C-Mo composite powder on a metal base material. Compared with the prior art, the preparation method allows the friction coefficient of the B4C-Mo composite coating layer prepared by the method of the invention to be obviously decreased as compared with a pure B4C coating layer, and allows the abrasion resistance to be obviously improved; moreover, the preparation method is simple, can prepare a coating layer with the thickness of 200 mum or more, can meet wide application requirements in the field of friction and abrasion resistance, and has practical value.
Description
Technical field
The present invention relates to a kind of preparation method of boron carbide coating, specifically, relate to the preparation method of a kind of norbide-molybdenum compound coating, belong to the high-abrasive material technical field.
Background technology
The ceramic-metal compound coating, as WC-Co, Cr
3C
2-Mo, Mo
2C-Mo etc., be subject in recent years people and more and more paid close attention to.The Structure Improvement that appears as ceramic coating of these compound coatings provides a kind of possibility, and has all shown the wear resisting property more more excellent than simple ceramic coating.Norbide is the extremely strong non-oxide ceramics of a kind of covalent linkage, and extreme hardness, be only second to diamond and cubic boron nitride, is a kind of coated material that is hopeful to be widely used in friction resistant wearing and tearing field.Metal molybdenum has that hardness is high, wear resistance good and anticorrosive, anti stick and the premium propertiess such as anti-molten copper, iron erosion, and its high thermal conductivity, low-expansion coefficient and the excellent characteristics such as thermal shock resistance, make it become one of important material of modern industry.Molybdenum coating has excellent antistick wearing and tearing ability, but the wear resisting property of coating is poor when high-load; And norbide hardness is high, there is good abrasion resistance properties.Molybdenum and norbide are carried out compound, can improve the antistick wearing and tearing ability of the pure coating of norbide, can meet the service requirements of coating under high-load simultaneously.In addition, the thermal conductivity of molybdenum, higher than norbide, will be conducive to the diffusion of heat in friction process after introducing, further improve the wear resisting property of coating.How to prepare the technology report of norbide-molybdenum compound coating but so far there are no.
Summary of the invention
The problems referred to above that exist for prior art, the purpose of this invention is to provide a kind of method for preparing norbide-molybdenum compound coating, to realize the application of norbide-molybdenum compound coating in rub resistance wearing and tearing field.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of method for preparing norbide-molybdenum compound coating is to adopt the vacuum plasma spray technology to spray B on metal base
4The C-Mo composite granule.
As a kind of preferred version, described metal base is stainless steel.
As a kind of preferred version, the processing parameter that carries out vacuum plasma spray is as follows: plasma gas Ar flow is 35～50 standard liter/min; Plasma gas H
2Flow is 8～18 standard liter/min; Powder carrier gas Ar flow is 2～4 standard liter/min; Spray distance is 120～250 millimeters; Spraying current is 600～700 amperes; Spray pressure is 300～600 millibars; Rate of feed is 15～30 rev/mins.
As a kind of preferred version, described B
4Molybdenum content in the C-Mo composite granule is 5 ~ 15vol% (volume percent).
As a kind of preferred version, described B
4The C-Mo composite granule is to adopt the mechanical ball milling legal system standby and obtain by boron carbide powder and molybdenum powder body.
As further preferred version, the particle diameter of described boron carbide powder is-325～+ 1600 orders, and the particle diameter of described molybdenum powder body is-200～+ 400 orders.
The purer B of frictional coefficient of the norbide that compared with prior art, adopts the inventive method to make-molybdenum compound coating
4The C coating obviously reduces, and wear resisting property is significantly improved; And preparation method of the present invention is simple, can make thickness and reach the above coating of 200 μ m, can meet the widespread use requirement in rub resistance wearing and tearing field, there is practical value.
The accompanying drawing explanation
The B that Fig. 1 is embodiment 1 preparation
4The C-Mo composite granule is forming the XRD figure spectrum of coating front and back, and in figure: a means to form the XRD figure spectrum of the front powder of coating; B means to form the XRD figure spectrum of the coating after coating.
The B that Fig. 2 is embodiment 1 preparation
4The Cross Section Morphology stereoscan photograph of C-Mo compound coating.
The B that Fig. 3 is embodiment 1 preparation
4The surface topography stereoscan photograph of C-Mo compound coating.
The B that Fig. 4 is embodiment 1 preparation
4C-Mo compound coating and pure B
4The frictional coefficient curve of C coating under the different loads effect, in figure: a means pure B
4The frictional coefficient of C coating and the relation curve of load; B means B
4The frictional coefficient of C-Mo compound coating and the relation curve of load.
Embodiment
Below by embodiment and accompanying drawing, the present invention is described in further detail and completely.
Embodiment 1
A) prepare B
4The C-Mo composite granule
By the molybdenum volume content, be that 10% to take respectively particle diameter be that-325～+ 1600 purpose boron carbide powders and particle diameter are-200～+ 400 purpose molybdenum powder bodies, mechanically mixing in the whirling vibration ball mill, the ball grinder speed of rotation is set as 400rpm, and ratio of grinding media to material (mass ratio) is 2:1.After ball milling 48h, take off ball grinder, composite granule sieves through 400 orders, in 70 ℃ of oven dry, standby in loft drier.
B) prepare coating
1) stainless steel substrate is carried out to pre-treatment: the stainless steel disk base material (Φ 50mm * Φ 6.5mm * 7mm) after sandblast (sandblast pressure is 0.2MPa) is processed is placed in to ethanol solution ultrasonic 5 minutes, 100 ℃ dry 1 hour standby;
2) adopt on the stainless steel disk base material of vacuum plasma spray technology after processing and prepare coating; The processing parameter that carries out vacuum plasma spray is as follows: plasma gas Ar flow is 42 standard liter/min; Plasma gas H
2Flow is 13 standard liter/min; Powder carrier gas Ar flow is 3 standard liter/min; Spray distance is 200 millimeters; Spraying current is 650 amperes; Spray pressure is 400 millibars; Rate of feed is 22 rev/mins; The powder sprayed is the B that step a) makes
4The C-Mo composite granule.
Spray B on stainless steel disk base material by above-mentioned vacuum plasma spray processing parameter after processing
4The C powder prepares pure B
4The C coating.
Fig. 1 is B prepared by the present embodiment
4The C-Mo composite granule is forming the XRD figure spectrum of coating front and back, and in figure: a means to form the XRD figure spectrum of the front powder of coating; B means to form the XRD figure spectrum of the coating after coating; As seen from Figure 1: after spraying, the composition structure of coating is compared considerable change is not occurred with former powder.
Fig. 2 is B prepared by the present embodiment
4The Cross Section Morphology stereoscan photograph of C-Mo compound coating; As seen from Figure 2: prepared B
4The C-Mo compound coating is typical laminate structure, and near the distribution of Mo substrate will distribution near surface more than it, and this may be the density ratio B of Mo
4Due to C is large.
Fig. 3 is B prepared by the present embodiment
4The surface topography stereoscan photograph of C-Mo compound coating; As seen from Figure 3: B
4The C-Mo composite granule has obtained melting preferably in spraying process, and molten drop is sprawled more abundant at coatingsurface.
To spray cated friction disc, through a series ofly polishing, after glossing (surfaceness 0.2 μ m left and right), with the WC-Co sintered carbide ball (hardness is HRC92) of Φ 9.525mm with ball-dish (Ball-on-disk) way of contact to grinding.The UMT-3 multifunction friction wear tester that wearing test equipment is U.S. CE TR company.The wear test condition is: load 20N, 30N, 40N and 50N, linear velocity 0.5m/s, fraction time 1800s.
Fig. 4 is B prepared by the present embodiment
4C-Mo compound coating and pure B
4The frictional coefficient curve of C coating under the different loads effect, in figure: a means pure B
4The frictional coefficient of C coating and the relation curve of load; B means B
4The frictional coefficient of C-Mo compound coating and the relation curve of load.As seen from Figure 4: prepared B
4The frictional coefficient of C-Mo compound coating under the different loads effect is all than pure B
4The C coating is low, and wear resisting property is more excellent.
Embodiment 2
The difference of the present embodiment and embodiment 1 is: be that 5% to take respectively particle diameter be that-325～+ 1600 purpose boron carbide powders and particle diameter are-200～+ 400 purpose molybdenum powder bodies by the molybdenum volume content, carry out mechanical ball milling and mix and make B
4The C-Mo composite granule; By prepared B
4The vacuum plasma spray processing parameter that the C-Mo composite granule is sprayed on the stainless steel disk base material after processing is as follows: plasma gas Ar flow is 45 standard liter/min; Plasma gas H
2Flow is 10 standard liter/min; Powder carrier gas Ar flow is 2 standard liter/min; Spray distance is 220 millimeters; Spraying current is 600 amperes; Spray pressure is 400 millibars; Rate of feed is 15 rev/mins.
All the other contents are all with identical described in embodiment 1.
Prepared B
4The frictional coefficient of C-Mo compound coating under the different loads effect is shown in Table 1.
Embodiment 3
The difference of the present embodiment and embodiment 1 is: by the molybdenum volume content, be that 15% to take respectively particle diameter be that-325～+ 1600 purpose boron carbide powders and particle diameter are-200～+ 400 purpose molybdenum powder bodies; By prepared B
4The vacuum plasma spray processing parameter that the C-Mo composite granule is sprayed on the stainless steel disk base material after processing is as follows: plasma gas Ar flow is 40 standard liter/min; Plasma gas H
2Flow is 15 standard liter/min; Powder carrier gas Ar flow is 4 standard liter/min; Spray distance is 180 millimeters; Spraying current is 700 amperes; Spray pressure is 400 millibars; Rate of feed is 30 rev/mins.
All the other contents are all with identical described in embodiment 1.
Prepared B
4The frictional coefficient of C-Mo compound coating under the different loads effect is shown in Table 1.
The frictional coefficient of the various coatings of table 1 under the different loads effect
| Coating sample | 20N | 30N | 40N | 50N |
| Pure B 4The C coating | 0.330 | 0.260 | 0.232 | 0.227 |
| Embodiment 2 | 0.315 | 0.235 | 0.213 | 0.210 |
| Embodiment 3 | 0.165 | 0.170 | 0.195 | 0.215 |
From table 1: prepared B
4The frictional coefficient of C-Mo compound coating under the different loads effect is all than pure B
4The C coating is low, and the B that can be obtained the wear resisting property excellence by the inventive method is described
4The C-Mo compound coating.
Finally be necessary to be pointed out that at this: above embodiment is only for being described in further detail technical scheme of the present invention; can not be interpreted as limiting the scope of the invention, some nonessential improvement that those skilled in the art's foregoing according to the present invention is made and adjustment all belong to protection scope of the present invention.
Claims (6)
1. a method for preparing norbide-molybdenum compound coating, is characterized in that: adopt the vacuum plasma spray technology to spray B on metal base
4The C-Mo composite granule.
2. the method for preparing norbide-molybdenum compound coating according to claim 1, it is characterized in that: described metal base is stainless steel.
3. the method for preparing norbide-molybdenum compound coating according to claim 1, is characterized in that, the processing parameter that carries out vacuum plasma spray is as follows: plasma gas Ar flow is 35～50 standard liter/min; Plasma gas H
2Flow is 8～18 standard liter/min; Powder carrier gas Ar flow is 2～4 standard liter/min; Spray distance is 120～250 millimeters; Spraying current is 600～700 amperes; Spray pressure is 300～600 millibars; Rate of feed is 15～30 rev/mins.
4. the method for preparing norbide-molybdenum compound coating according to claim 1, is characterized in that: described B
4Molybdenum content in the C-Mo composite granule is 5 ~ 15vol%.
5. the method for preparing norbide-molybdenum compound coating according to claim 1, is characterized in that: described B
4The C-Mo composite granule is to adopt the mechanical ball milling legal system standby and obtain by boron carbide powder and molybdenum powder body.
6. the method for preparing norbide-molybdenum compound coating according to claim 5, it is characterized in that: the particle diameter of described boron carbide powder is-325～+ 1600 orders, the particle diameter of described molybdenum powder body is-200～+ 400 orders.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651771A (en) * | 2015-03-04 | 2015-05-27 | 中国科学院上海硅酸盐研究所 | High-temperature-resistant ablation-resistant tantalum carbide composite coating and preparation method thereof |
| CN104651770A (en) * | 2015-03-04 | 2015-05-27 | 中国科学院上海硅酸盐研究所 | High-friction-coefficient and low-wear-rate inorganic coating and preparation method thereof |
| CN112609146A (en) * | 2020-11-27 | 2021-04-06 | 安徽盈锐优材科技有限公司 | Plasma spraying material for generating molybdenum boride molybdenum carbide coating through flame flow self-reaction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131364A (en) * | 1990-09-20 | 1992-05-06 | Mitsubishi Materials Corp | Melt-spraying method for alumina-dispersed alloy |
| JPH0978217A (en) * | 1995-09-18 | 1997-03-25 | Mitsubishi Materials Corp | Nickel base alloy plasma sprayed coating film excellent in wear resistance and corrosion resistance |
| WO2001046324A2 (en) * | 1999-10-25 | 2001-06-28 | Rolls-Royce Corporation | Erosion-resistant coatings for organic matrix composites |
| CN1554798A (en) * | 2003-12-26 | 2004-12-15 | 中国科学院上海硅酸盐研究所 | Process for preparing plasma sprayed Boron carbide coating material |
| WO2010136777A1 (en) * | 2009-05-28 | 2010-12-02 | Bedi, Kathryn Jane | Coating method |
-
2012
- 2012-05-14 CN CN2012101486785A patent/CN103422047A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04131364A (en) * | 1990-09-20 | 1992-05-06 | Mitsubishi Materials Corp | Melt-spraying method for alumina-dispersed alloy |
| JPH0978217A (en) * | 1995-09-18 | 1997-03-25 | Mitsubishi Materials Corp | Nickel base alloy plasma sprayed coating film excellent in wear resistance and corrosion resistance |
| WO2001046324A2 (en) * | 1999-10-25 | 2001-06-28 | Rolls-Royce Corporation | Erosion-resistant coatings for organic matrix composites |
| CN1554798A (en) * | 2003-12-26 | 2004-12-15 | 中国科学院上海硅酸盐研究所 | Process for preparing plasma sprayed Boron carbide coating material |
| WO2010136777A1 (en) * | 2009-05-28 | 2010-12-02 | Bedi, Kathryn Jane | Coating method |
Non-Patent Citations (3)
| Title |
|---|
| F.KUSTAS ET AL: "Wear behavior of B4C-Mo co-sputtered wear coatings", 《SURFACE AND COATINGS TECHNOLOGY》 * |
| 宣天鹏: "《表面工程技术的设计与选择》", 31 May 2011, 机械工业出版社 * |
| 郑学斌等: ""真空等离子喷涂碳化硼涂层制备与抗激光辐射性能研究"", 《无机材料学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651771A (en) * | 2015-03-04 | 2015-05-27 | 中国科学院上海硅酸盐研究所 | High-temperature-resistant ablation-resistant tantalum carbide composite coating and preparation method thereof |
| CN104651770A (en) * | 2015-03-04 | 2015-05-27 | 中国科学院上海硅酸盐研究所 | High-friction-coefficient and low-wear-rate inorganic coating and preparation method thereof |
| CN104651770B (en) * | 2015-03-04 | 2018-09-28 | 中国科学院上海硅酸盐研究所 | A kind of inorganic coating and preparation method thereof with great friction coefficient and low wear rate |
| CN112609146A (en) * | 2020-11-27 | 2021-04-06 | 安徽盈锐优材科技有限公司 | Plasma spraying material for generating molybdenum boride molybdenum carbide coating through flame flow self-reaction |
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Application publication date: 20131204 |