CN106756986A - A kind of method of aluminium alloy laser melting coating TiN Si Cr B Al wear-resistant coatings - Google Patents
A kind of method of aluminium alloy laser melting coating TiN Si Cr B Al wear-resistant coatings Download PDFInfo
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- CN106756986A CN106756986A CN201611022639.5A CN201611022639A CN106756986A CN 106756986 A CN106756986 A CN 106756986A CN 201611022639 A CN201611022639 A CN 201611022639A CN 106756986 A CN106756986 A CN 106756986A
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- wear
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- aluminum alloy
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- laser melting
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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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
Abstract
The invention discloses a kind of method of aluminium alloy laser melting coating TiN Cr B SiC Al wear-resistant coatings, it includes：(1) by aluminum alloy base material sandblasting roughening treatment, roughness is more than Ra25；(2) aluminum alloy base material after sandblasting roughening treatment is removed into surface impurity；(3) composite powder of 10 15wt%TiN, 2 6wt%Cr, 0.5 3wt%B, 0.5 2wt%SiC and balance aluminum is well mixed, slurry is deployed into after grinding；(4) slurry is uniformly coated on aluminum alloy base material surface, is dried at 100 140 DEG C；(5) laser melting coating is used, its laser power is 2 10kW, the 10mm of spot width 3, the 5mm/s of sweep speed 2, by the cladding, obtains cladding in the TiN Cr B SiC Al wear-resistant coatings of aluminum alloy surface.By laser melting coating, in one layer of TiN Cr B SiC Al wear-resistant coating of aluminum alloy surface cladding, its hardness is more than 350HV to the present invention0.2, more than 6 times are improved compared with aluminum matrix alloy performance.Considerably increase the anti-wear performance of aluminium alloy.
Description
Technical field
It is wear-resisting the present invention relates to field of material technology, more particularly to a kind of aluminium alloy laser melting coating SiC-TiN-Cr-B-Al
The method of coating.
Background technology
The research that material subject scholar and engineers and technicians are deepened continuously to alumina-base material always, alumina-base material
Modified aluminium alloy and aluminum matrix composite are developed into by traditional cast aluminium alloy gold.Aluminum matrix composite causes the wear-resisting of aluminium alloy
The comprehensive mechanical performance such as property and intensity is to increasing substantially.However, alumina-base material fusing point is low, hardness is low and wear no resistance lack
Fall into still without obtain it is basic overcome, which greatly limits the range of application of aluminium alloy.For many years, in order to overcome aluminium
The deficiency of alloy, the bulk modified and surface of aluminium alloy is modified the direction that always people make great efforts.
Laser melting and coating technique has the excellent properties of lot of advantages and laser cladding coating, and scholars and technical staff are equal
It is furtherd investigate constantly, constantly opens up its application field.With material science, computer application science, from
The development of dynamic control technology and laser melting and coating technique itself, laser melting and coating technique has obtained application in many aspects of industrial circle
Or there is huge potential application.
Expected by the heterogeneous village in common material surface laser cladding with particular characteristic, can obtained with particular characteristic
High-quality coating, reach to common material surface be modified purpose, elongated component service life, expand common material use
Scope.This surface is modified including improving the intensity of material surface, wearability, corrosion resistance (including acid, alkali, salt corrosion and gas
Body corrodes) and heat-resisting quantity etc..
But aluminium alloy is easily oxidized in atmosphere, in Surface Creation layer oxide film.The oxide-film of aluminum alloy surface
Fusing point is very high, is difficult fusing, and its proportion is bigger than aluminium, thus will sink in the molten bath that laser melting coating is produced, on interface
Formation is mingled with or stomata, influences cladding quality.Want to obtain high-quality coating, just want method and try one's best removing oxide-film.
Al is removed at present2O3Method have Mechanical Method, from slag making element method and synthesis etc..In this several method, synthesis is operated more
Complexity, is not suitable with large-scale production application, is mainly limited to laboratory research；Mechanical Method because its is simple to operate, using compared with
Extensively, but go oxide film dissolving not thorough, effect is undesirable；Being succeeded in the industrial production at present from slag making element method should
With.Therefore aluminum alloy surface carries out laser melting coating and also has the defect for being difficult to overcome.
The content of the invention
It is an object of the invention to propose a kind of method of aluminium alloy laser melting coating SiC-TiN-Cr-B-Al wear-resistant coatings,
The anti-wear performance of aluminium alloy can be greatly improved.
Earlier application of the invention proposes a kind of a kind of " side of aluminium alloy laser melting coating Si-Cr-B-W-Al wear-resistant coatings
Method ", it substantially increases the anti-wear performance of aluminium alloy in one layer of Si-Cr-B-W-Al wear-resistant coating of aluminum alloy surface cladding.But
Because it uses W, its processing difficulties, melt blending there is also certain difficulty, therefore the present invention makes improvements, and is replaced with finding
Change the material of W.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of method of aluminium alloy laser melting coating TiN-Cr-B-SiC-Al wear-resistant coatings, it includes：
(1) by aluminum alloy base material sandblasting roughening treatment, roughness is more than Ra25；
(2) aluminum alloy base material after sandblasting roughening treatment is removed into surface impurity；
(3) by 10-15wt%TiN, 2-6wt%Cr, 0.5-3wt%B, 0.5-2wt%SiC and the composite powder of balance aluminum
It is well mixed, slurry is deployed into after grinding；
(4) slurry is uniformly coated on aluminum alloy base material surface, is dried at 100-140 DEG C；
(5) laser melting coating is used, its laser power is 2-10kW, spot width 3-10mm, sweep speed 2-5mm/s, is incited somebody to action
The cladding, obtains cladding in the TiN-Cr-B-SiC-Al wear-resistant coatings of aluminum alloy surface.
The present invention passes through laser melting coating, in one layer of TiN-Cr-B-SiC-Al wear-resistant coating of aluminum alloy surface cladding, its hardness
More than 350HV0.2, more than 6 times are improved compared with aluminum matrix alloy performance.Considerably increase the anti-wear performance of aluminium alloy.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of method of aluminium alloy laser melting coating TiN-Cr-B-SiC-Al wear-resistant coatings, it includes：
(1) by aluminum alloy base material sandblasting roughening treatment, roughness is more than Ra25；
(2) aluminum alloy base material after sandblasting roughening treatment is removed into surface impurity；
(3) composite powder of 10wt%TiN, 2wt%Cr, 0.5wt%B, 0.5wt%SiC and balance aluminum is well mixed,
Slurry is deployed into after grinding；
(4) slurry is uniformly coated on aluminum alloy base material surface, is dried at 100 DEG C；
(5) laser melting coating is used, its laser power is 2kW, spot width 3mm, sweep speed 2mm/s, by the cladding,
Cladding is obtained in the TiN-Cr-B-SiC-Al wear-resistant coatings of aluminum alloy surface.
The present invention passes through laser melting coating, in one layer of TiN-Cr-B-SiC-Al wear-resistant coating of aluminum alloy surface cladding, its hardness
It is 364HV0.2。
Embodiment 2
A kind of method of aluminium alloy laser melting coating TiN-Cr-B-SiC-Al wear-resistant coatings, it includes：
(1) by aluminum alloy base material sandblasting roughening treatment, roughness is more than Ra25；
(2) aluminum alloy base material after sandblasting roughening treatment is removed into surface impurity；
(3) composite powder of 15wt%TiN, 6wt%Cr, 3wt%B, 2wt%SiC and balance aluminum is well mixed, is ground
After be deployed into slurry；
(4) slurry is uniformly coated on aluminum alloy base material surface, is dried at 140 DEG C；
(5) laser melting coating is used, its laser power is 10kW, spot width 10mm, sweep speed 5mm/s, described will be melted
Cover, obtain cladding in the TiN-Cr-B-SiC-Al wear-resistant coatings of aluminum alloy surface.
The present invention passes through laser melting coating, in one layer of TiN-Cr-B-SiC-Al wear-resistant coating of aluminum alloy surface cladding, its hardness
Position 356HV0.2。
Embodiment 3
A kind of method of aluminium alloy laser melting coating TiN-Cr-B-SiC-Al wear-resistant coatings, it includes：
(1) by aluminum alloy base material sandblasting roughening treatment, roughness is more than Ra25；
(2) aluminum alloy base material after sandblasting roughening treatment is removed into surface impurity；
(3) composite powder of 12wt%TiN, 4wt%Cr, 1wt%B, 1wt%SiC and balance aluminum is well mixed, is ground
After be deployed into slurry；
(4) slurry is uniformly coated on aluminum alloy base material surface, is dried at 100 DEG C；
(5) laser melting coating is used, its laser power is 6kW, spot width 4mm, sweep speed 3mm/s, by the cladding,
Cladding is obtained in the TiN-Cr-B-SiC-Al wear-resistant coatings of aluminum alloy surface.
The present invention passes through laser melting coating, in one layer of TiN-Cr-B-SiC-Al wear-resistant coating of aluminum alloy surface cladding, its hardness
More than 377HV0.2。
Embodiment 4
A kind of method of aluminium alloy laser melting coating TiN-Cr-B-SiC-Al wear-resistant coatings, it includes：
(1) by aluminum alloy base material sandblasting roughening treatment, roughness is more than Ra25；
(2) aluminum alloy base material after sandblasting roughening treatment is removed into surface impurity；
(3) composite powder of 11wt%TiN, 5wt%Cr, 1.6wt%B, 0.6wt%SiC and balance aluminum is well mixed,
Slurry is deployed into after grinding；
(4) slurry is uniformly coated on aluminum alloy base material surface, is dried at 110 DEG C；
(5) laser melting coating is used, its laser power is 8kW, spot width 6mm, sweep speed 3mm/s, by the cladding,
Cladding is obtained in the TiN-Cr-B-SiC-Al wear-resistant coatings of aluminum alloy surface.
The present invention passes through laser melting coating, in one layer of TiN-Cr-B-SiC-Al wear-resistant coating of aluminum alloy surface cladding, its hardness
More than 385HV0.2。
Claims (1)
1. a kind of method of aluminium alloy laser melting coating TiN-Cr-B-SiC-Al wear-resistant coatings, it includes：
(1) by aluminum alloy base material sandblasting roughening treatment, roughness is more than Ra25；
(2) aluminum alloy base material after sandblasting roughening treatment is removed into surface impurity；
(3) composite powder of 10-15wt%TiN, 2-6wt%Cr, 0.5-3wt%B, 0.5-2wt%SiC and balance aluminum is mixed
Uniformly, it is deployed into slurry after grinding；
(4) slurry is uniformly coated on aluminum alloy base material surface, is dried at 100-140 DEG C；
(5) laser melting coating is used, its laser power is 2-10kW, spot width 3-10mm, sweep speed 2-5mm/s, by described in
Cladding, obtains cladding in the TiN-Cr-B-SiC-Al wear-resistant coatings of aluminum alloy surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022639.5A CN106756986A (en) | 2016-11-17 | 2016-11-17 | A kind of method of aluminium alloy laser melting coating TiN Si Cr B Al wear-resistant coatings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611022639.5A CN106756986A (en) | 2016-11-17 | 2016-11-17 | A kind of method of aluminium alloy laser melting coating TiN Si Cr B Al wear-resistant coatings |
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| CN106756986A true CN106756986A (en) | 2017-05-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335937A (en) * | 2017-07-28 | 2017-11-10 | 成都盘涅科技有限公司 | The method of aluminium alloy electronic device of the manufacture with excellent packaging air tightness |
| CN111945148A (en) * | 2020-07-02 | 2020-11-17 | 北京工业大学 | Method for improving wear-resisting and corrosion-resisting properties of magnesium alloy |
| CN115287647A (en) * | 2022-07-05 | 2022-11-04 | 中国人民解放军陆军装甲兵学院 | Laser cladding ceramic particle reinforced aluminum-based cladding layer and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394685A (en) * | 2013-07-17 | 2013-11-20 | 贵州大学 | Alloy powder for manufacturing high-entropy alloy coatings, and manufacturing method and application for alloy powder |
-
2016
- 2016-11-17 CN CN201611022639.5A patent/CN106756986A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394685A (en) * | 2013-07-17 | 2013-11-20 | 贵州大学 | Alloy powder for manufacturing high-entropy alloy coatings, and manufacturing method and application for alloy powder |
Non-Patent Citations (2)
| Title |
|---|
| H.J.HEGGE ET AL.: "《Oxidation effects during laser cladding of aluminium with SiC/Al powders》", 《JOURNAL OF MATERIALS SCIENCE》 * |
| 徐滨士等: "《再制造工程基础及其应用》", 31 October 2005 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335937A (en) * | 2017-07-28 | 2017-11-10 | 成都盘涅科技有限公司 | The method of aluminium alloy electronic device of the manufacture with excellent packaging air tightness |
| CN107335937B (en) * | 2017-07-28 | 2019-10-01 | 成都盘涅科技有限公司 | Manufacture the method with the aluminium alloy electronic device of excellent packaging air tightness |
| CN111945148A (en) * | 2020-07-02 | 2020-11-17 | 北京工业大学 | Method for improving wear-resisting and corrosion-resisting properties of magnesium alloy |
| CN111945148B (en) * | 2020-07-02 | 2021-11-12 | 北京工业大学 | Method for improving wear-resisting and corrosion-resisting properties of magnesium alloy |
| CN115287647A (en) * | 2022-07-05 | 2022-11-04 | 中国人民解放军陆军装甲兵学院 | Laser cladding ceramic particle reinforced aluminum-based cladding layer and preparation method thereof |
| CN115287647B (en) * | 2022-07-05 | 2023-10-31 | 中国人民解放军陆军装甲兵学院 | Laser cladding ceramic particle reinforced aluminum-based cladding layer and preparation method thereof |
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