CN108265289B - A kind of method of Argon arc cladding fabricated in situ various reinforced phase composite coating - Google Patents
A kind of method of Argon arc cladding fabricated in situ various reinforced phase composite coating Download PDFInfo
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- CN108265289B CN108265289B CN201810077944.7A CN201810077944A CN108265289B CN 108265289 B CN108265289 B CN 108265289B CN 201810077944 A CN201810077944 A CN 201810077944A CN 108265289 B CN108265289 B CN 108265289B
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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 methods for the Argon arc cladding fabricated in situ various reinforced phase composite coating for belonging to material surface technical field of heat treatment, powder coating is precoated first, then arc cladding technology processing is carried out to pre-made powder and metallic matrix using non-melt pole argon arc heat source, under the action of non-melt pole argon arc heat source, alloy powder melts rapidly with metal base surface, molten bath is formed, argon arc technological parameter is adjusted, makes alloy powder in-situ reactive synthesis TiB, TiB in metallic matrix2, the multiphase particles composite coating such as TiN, composite coating and matrix are in metallurgical bonding, and reinforced phase particle is tiny and is evenly distributed.Compared with conventional laser cladding, plasma cladding powder coating, Argon arc cladding has simple process, it can be achieved that manual operations and mechanized operation, the features such as equipment cost is low, and the loss of powder is small, and production efficiency is higher.
Description
Technical field
The invention belongs to metal surface technical field of heat treatment, in particular to a kind of a variety of enhancings of Argon arc cladding fabricated in situ
The method of phase composite coating.Specifically a kind of argon arc deposited fabricated in situ TiB, TiB2, TiN composite coating method.
Background technique
Abrasion is one of three kinds of main failure forms of material, and caused economic loss is huge, equipment in industrial production
Damage there are about 70% caused by various forms of abrasions, loss is up to hundred billion caused by industrially developed country's mechanical equipment is annual
Dollar or more；According to the tribology survey report that Chinese Academy of Engineering issues, China is every year because of up to 950,000,000,000 yuan caused by fretting wear
Economic loss, therefore, the wearability for improving material have vital work to part service life and raising material property is extended
With.Currently, steel material is since its cheap cost still occupies leading position in engineering component and component of machine material, but
Due to the influence of need of work and outside environmental elements, component and component surface are frequently subjected to serious abrasion, cause huge
Resource, the energy consumption and economic loss.Using advanced surface strengthening technology in engineering component and component of machine surface
The wearing layer with matrix in metallurgical bonding is prepared, is one of effective solution, usual carbon steel surface peening mode
There are the methods of carburizing/carbo-nitriding, built-up welding, spraying, laser melting coating, plasma cladding, but there are wear-resisting thickness in these methods
Spend it is small, complicated for operation, it is at high cost, be restricted in terms of popularization and application.In metallic matrix, enhancing particle can pass through additional side
Formula or fabricated in situ mode are added, and there is the problems such as combination is insecure, and wetability is poor between additional enhancing particle and metallic matrix, former
Position synthesis reinforced phase particle is combined with matrix, can form multiphase particle, help to obtain the good composite coating of wearability.Cause
This, situ synthesis techniques are paid more and more attention.Using the method for argon arc deposited fabricated in situ various reinforced phase composite coating, operation
Simply, dilution rate is small, and equipment cost is low, strengthening effect is good, suitable for the surface peening of complex parts, and can save former material
Material, therefore argon arc deposited fabricated in situ various reinforced phase composite coating has broad application prospects.
Summary of the invention
The object of the present invention is to provide a kind of method of argon arc deposited fabricated in situ various reinforced phase composite coating, features
It is, this method processing step are as follows:
1) precoating coating is prepared, specifically: purity is greater than 99.0%, average particle size is that 20 μm of Ti powder is greater than with purity
99.0%, the BN powder that average particle size is 30 μm is (1-2) according to molar ratio: (1-3) is mixed；Then by mixed Ti powder and BN powder
It is mixed according to the ratio for accounting for gross mass percentage 10 ~ 30% with nickel-base alloy powder；Hybrid mode is ball milling, obtains mixed-powder；
2) arc cladding technology described in, parameter are as follows: cladding electric current: 120A, cladding speed: 120mm/min, argon gas stream
Amount: 10L/min.
The concrete technology of cladding be first by mixed-powder using adhesive coated to metal base surface, coating thickness 1 ~
1.5mm, naturally dry for 24 hours after, place thermostatic drying chamber in 120 DEG C ~ 200 DEG C drying 2h；It will using the arc heat of argon arc welding machine
Alloy powder coated on mild steel, which melts, to form composite coating, according to above-mentioned arc cladding technology parameter cladding, in deposition mistake
Cheng Zhong, matrix and mixed-powder are in always among the argon gas protection of purity 99.99%.
The metallic matrix is mild steel, medium carbon steel or Hi-Stren steel.
The nickel-base alloy is Ni60A or Ni60B.
The organic binder is that waterglass or gold get profit liquid glue (PAVL liquid glue)
It is an advantage of the invention that overcome it is original prepare fabricated in situ composite coating is complicated for operation, utilization rate of raw materials is low,
The deficiencies of high production cost, prepared multiphase enhancing Particles dispersed coating and matrix metallurgical bonding, clean interfaces zero defect, coating
It is wear-resisting excellent.With 1, precoating powder after Argon arc cladding, titanium valve and boron nitride powder in powder absorb arc energy, low
Reaction in-situ generates TiB, TiB in plain steel2TiN particle afterwards.The coating of preparation and matrix metallurgical bonding, TiB, TiB2、TiN
Particle is tiny, and Dispersed precipitate is in matrix.The hardness of coating is up to HV0.51300 or more, strengthening mechanism is solution strengthening, carefully
Crystalline substance reinforcing, second-phase strength；2, used equipment operation is simple, it can be achieved that manual operations and mechanized operation, equipment cost
Lower, the loss of powder is small, and production efficiency is higher, and cost substantially reduces；3, obtained various reinforced phase composite coating has
Higher wearability.
Detailed description of the invention
Fig. 1 is Argon arc cladding fabricated in situ various reinforced phase composite coating (SEM) photo.
Fig. 2 is Argon arc cladding fabricated in situ various reinforced phase composite coating X ray diffracting spectrum.
Fig. 3 is Argon arc cladding fabricated in situ various reinforced phase composite coating hardness profile.
Fig. 4 is Argon arc cladding fabricated in situ various reinforced phase composite coating and mild steel Contrast of Wear Resistance.
Specific embodiment
The present invention provides a kind of method of argon arc deposited fabricated in situ various reinforced phase composite coating.With reference to the accompanying drawing and
Embodiment is further described the present invention.It is natural first by mixed-powder using adhesive coated to metal base surface
After drying for 24 hours, 120 DEG C ~ 200 DEG C drying 2h in thermostatic drying chamber are placed；Using non-melt pole argon arc heat source to pre-made powder with
Metallic matrix carries out arc cladding technology processing, and under the action of arc heat, alloy powder melts rapidly with metal base surface,
Molten bath is formed, argon arc technological parameter is adjusted, makes alloy powder in-situ reactive synthesis TiB, TiB in metallic matrix2, TiN etc. it is more
Phase composite coating, coating and matrix metallurgical bonding, particle is tiny and is evenly distributed.
Embodiment 1
Weigh account for gross mass percentage 10% be according to molar ratio 1:3 mixing Ti powder and BN powder, and account for gross mass percentage
Ni60A powder than 90%；Gross mass is 20 grams；Wherein, the average particle size of Ti powder is 20 μm, and purity is greater than 99%；BN powder is averaged
Granularity is 30 μm, and purity is greater than 99%；80 μm of the average particle size of Ni60A powder is put into planet by Ti powder and BN powder, and with Ni60A powder
Mixing 4h is carried out in formula ball mill, after mixed powder addition organic binder (waterglass) is then mixed into paste, is applied
Metallic matrix surface of low-carbon steel is spread on, coating thickness 1.2mm is spontaneously dried for 24 hours in air, by the metal after precoating before cladding
Matrix is put into 170 DEG C of drying 2h in thermostatic drying chamber.Cladding is carried out using argon arc welding machine, cladding electric current is 120A, cladding speed
For 120mm/min, argon flow 10L/min.Testing result shows: cladding layer is with a thickness of 1200 μm, the tissue of composite coating
Mainly by γ-Ni dendrite, M23C6、TiN、TiB、TiB2It forms (as shown in Figure 2), TiN is distributed in blocky-shaped particle, TiB and TiB2With
Needle bar shape exists, and is evenly distributed；Composite coating and metallic matrix are in metallurgical bonding (as shown in Figure 1 and Figure 2), and Fig. 3 show argon arc
Cladding fabricated in situ various reinforced phase composite coating hardness profile, coating hardness is up to 1100HV0.5；Fig. 4 show argon arc
Cladding fabricated in situ various reinforced phase composite coating and mild steel Contrast of Wear Resistance, are 8 times of mild steel.
Embodiment 2
Weigh account for gross mass percentage 10% be according to molar ratio 1:2 mixing Ti powder and BN powder, and account for gross mass percentage
Ni60B powder than 90%；Gross mass is 20 grams；Wherein, the average particle size of Ti powder is 20 μm, and purity is greater than 99%；BN powder is averaged
Granularity is 30 μm, and purity is greater than 99%；And be put into 80 μm of average particle size of Ni60B powder and carry out mixing 4h in planetary ball mill,
Then after mixed powder addition organic binder (waterglass) being mixed into paste, it is coated on metallic matrix medium carbon steel table
Face, coating thickness 1.3mm are spontaneously dried for 24 hours in air, the metallic matrix after precoating are put into thermostatic drying chamber before cladding
150 DEG C of drying 2h.Cladding is carried out using argon arc welding machine, cladding electric current is 120A, and cladding speed is 120mm/min, argon flow
For 10L/min.Testing result shows: cladding layer is with a thickness of 1200 μm, and the tissue of composite coating is mainly by γ-Ni dendrite, M23C6、
TiN、TiB、TiB2Composition, TiN are distributed in blocky-shaped particle, TiB and TiB2Exist with needle bar shape, is evenly distributed；Composite coating and gold
Category matrix show Argon arc cladding fabricated in situ various reinforced phase composite coating in metallurgical bonding, (as shown in Figure 1 and Figure 2), Fig. 3
Hardness profile, coating hardness is up to 1250HV0.5；Fig. 4 show Argon arc cladding fabricated in situ various reinforced phase composite coating
It is 15 times of mild steel with mild steel Contrast of Wear Resistance.
Embodiment 3
Weigh account for gross mass percentage 10% be according to molar ratio 2:3 mixing Ti powder and BN powder, and account for gross mass percentage
Ni60A powder than 90%；Gross mass is 20 grams；Wherein, the average particle size of Ti powder is 20 μm, and purity is greater than 99%；BN powder is averaged
Granularity is 30 μm, and purity is greater than 99%；And it is put into planetary ball mill and is mixed with 80 μm of average particle size of Ni60A powder
Then 4h gets profit mixed powder addition organic binder gold after liquid glue (PAVL liquid glue) is mixed into paste, coating
In metallic matrix Hi-Stren steel surface, coating thickness 1.4mm is spontaneously dried for 24 hours in air, after precoating before cladding
Metallic matrix be put into 130 DEG C of drying 2h in thermostatic drying chamber.Cladding is carried out using argon arc welding machine, cladding electric current is 120A, is melted
Covering speed is 120mm/min, argon flow 10L/min.Testing result shows: cladding layer is with a thickness of 1200 μm, composite coating
Tissue mainly by γ-Ni dendrite, M23C6、TiN、TiB、TiB2Composition, TiN are distributed in blocky-shaped particle, TiB and TiB2With needle bar
Shape exists, and is evenly distributed；Composite coating and metallic matrix are in metallurgical bonding, and (as shown in Figure 1 and Figure 2), it is molten that Fig. 3 show argon arc
Fabricated in situ various reinforced phase composite coating hardness profile is covered, coating hardness is up to 1400HV0.5；It is molten that Fig. 4 show argon arc
Fabricated in situ various reinforced phase composite coating and mild steel Contrast of Wear Resistance are covered, is 26 times of mild steel.
Claims (1)
1. a kind of method of Argon arc cladding fabricated in situ various reinforced phase composite coating, which is characterized in that the synthetic method packet
It includes:
1) precoating coating is prepared, specifically: purity is greater than 99.0%, average particle size is that 20 μm of Ti powder is greater than with purity
99.0%, the BN powder that average particle size is 30 μm is (1-2) according to molar ratio: (1-3) is mixed；Then by mixed Ti powder and BN powder
It is mixed according to the ratio for accounting for gross mass percentage 10 ~ 30% with nickel-base alloy powder；Hybrid mode is ball milling, obtains mixed-powder；Institute
Stating nickel-base alloy is Ni60A or Ni60B；
2) arc cladding technology described in, parameter are as follows: cladding electric current: 120A, cladding speed: 120mm/min, argon flow:
10L/min；
The concrete technology of cladding is first to coat mixed-powder to metal base surface, coating thickness using gold liquid glue of getting profit
1 ~ 1.5mm, naturally dry for 24 hours after, place thermostatic drying chamber in 120 DEG C ~ 200 DEG C drying 2h；Utilize the arc heat of argon arc welding machine
It melts the alloy powder for being coated on mild steel to form composite coating, according to above-mentioned arc cladding technology parameter cladding, in deposition
In the process, matrix and mixed-powder are in always among the argon gas protection of purity 99.99%；The metallic matrix be mild steel,
Medium carbon steel or Hi-Stren steel.
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| CN110331399B (en) * | 2019-07-29 | 2020-11-24 | 西北有色金属研究院 | Method for inhibiting decomposition of cBN particles in chromium-containing nickel-based alloy-cBN composite coating prepared by laser cladding |
| CN115110018B (en) * | 2022-06-22 | 2023-11-10 | 武汉钢铁有限公司 | Preparation method of coating for crystallizer copper plate |
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| CN1826456A (en) * | 2003-06-10 | 2006-08-30 | 石川岛播磨重工业株式会社 | Turbine component, gas turbine engine, method of manufacture turbine component, surface processing method, blade component, metal component and steam turbine engine |
| CN101323036A (en) * | 2008-07-11 | 2008-12-17 | 黑龙江科技学院 | Method of in situ synthesizing ZrC composite coating for argon arc deposited ceramic stick |
| CN104722893A (en) * | 2015-03-26 | 2015-06-24 | 黑龙江科技大学 | Method for preparing wear-resistant coating based on overlay welding and argon shielded arc cladding |
| CN104962909A (en) * | 2015-08-01 | 2015-10-07 | 西北有色金属研究院 | Method for preparing antifriction wear-resistant coating on metal matrix surface |
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| US6689424B1 (en) * | 1999-05-28 | 2004-02-10 | Inframat Corporation | Solid lubricant coatings produced by thermal spray methods |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1826456A (en) * | 2003-06-10 | 2006-08-30 | 石川岛播磨重工业株式会社 | Turbine component, gas turbine engine, method of manufacture turbine component, surface processing method, blade component, metal component and steam turbine engine |
| CN101323036A (en) * | 2008-07-11 | 2008-12-17 | 黑龙江科技学院 | Method of in situ synthesizing ZrC composite coating for argon arc deposited ceramic stick |
| CN104722893A (en) * | 2015-03-26 | 2015-06-24 | 黑龙江科技大学 | Method for preparing wear-resistant coating based on overlay welding and argon shielded arc cladding |
| CN104962909A (en) * | 2015-08-01 | 2015-10-07 | 西北有色金属研究院 | Method for preparing antifriction wear-resistant coating on metal matrix surface |
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