CN105803454A - Composite coating material based on 45# steel substrate and preparing method of coating - Google Patents
Composite coating material based on 45# steel substrate and preparing method of coating Download PDFInfo
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- CN105803454A CN105803454A CN201610304847.8A CN201610304847A CN105803454A CN 105803454 A CN105803454 A CN 105803454A CN 201610304847 A CN201610304847 A CN 201610304847A CN 105803454 A CN105803454 A CN 105803454A
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- 238000000576 coating method Methods 0.000 title claims abstract description 105
- 239000011248 coating agent Substances 0.000 title claims abstract description 103
- 239000000463 material Substances 0.000 title claims abstract description 69
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- 239000000758 substrate Substances 0.000 title claims abstract description 47
- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 73
- 239000010963 304 stainless steel Substances 0.000 claims abstract description 22
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims abstract description 22
- 238000000498 ball milling Methods 0.000 claims abstract description 17
- 238000004372 laser cladding Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000011812 mixed powder Substances 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 16
- 238000005253 cladding Methods 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 16
- 230000007797 corrosion Effects 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical group Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
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
- 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
-
- B22F1/0003—
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a composite coating material based on a 45# steel substrate and a preparing method of a coating. The coating comprises, by weight percent, 0% to 10% of WC powder, 0% to 1% of Y2O3 powder, and the balance 304 stainless steel powder. The WC powder, the Y2O3 powder and the 304 stainless steel powder which are prepared according to the ratio are mixed and are added into a ball milling tank together with ball milling media, and after ball milling is carried out for 4h to 6h, mixed powder is obtained; the mixed powder is subject to drying treatment under the vacuum environment, and the coating material is obtained; the surface of the 45# steel substrate is ground to be flat; a dedicated powder preset tool is used for flatly laying the coating material on the surface of the 45# steel substrate; and finally, laser heat treatment equipment is used for carrying out laser cladding on the material, and the coating is obtained. The obtained coating has the good wear resistance, and higher corrosion resistance, the preparing technology is simple, the cost is low, and batch production is easily achieved.
Description
Technical background
The present invention relates to the preparation method of a kind of composite coating material and coating, particularly a kind of base
Wear-resistant corrosion-resistant composite coating material and the preparation method of coating in No. 45 steel substrates.
Background technology
Laser melting coating refers to a class metal target powder to be placed in by cladding matrix surface, passes through
Laser irradiation melts by the thin layer of it and matrix surface simultaneously, then rapid solidification, afterwards and base
Body is the face coat of metallurgical binding, can significantly improve substrate surface wear-resisting, heat-resisting, anti-corrosion,
The process of antioxidation etc., comes metal surface modification or reparation with this, both to material surface
Particular characteristic has ensured, has again good economic benefit.Use this technology of laser melting coating can
The coating of stable practicality is formed at surface of the work.
Wherein the workpiece (such as bearing, grinding tool etc.) with No. 45 steel as base material is in the process of use
In, can then be made workpiece lose efficacy by surface abrasion and corrosion, cause bigger economic loss,
Conventional machining means are now used to be difficult to failure site is repaired, therefore, available laser
Melting and coating technique can form composite coating at surface of the work, can be to failure site reparation.But,
Current laser cladding powder system generally comprises the alloyed powder of Co base, Ni base and Fe base etc.
End, but in terms of the coating material utilizing these powder to prepare can not meet wearability, corrosion resistance
Demand simultaneously, also can often ftracture.
Summary of the invention
It is an object of the invention to, it is provided that a kind of composite coating materials based on No. 45 steel substrates
And the preparation method of coating.The present invention had both had preferable wearability, had again higher anti-corrosion
Property, preparation technology is simple, and cheap, easily carries out the production of mass, is also not easy
Cracking.
Technical solution of the present invention: a kind of composite coating materials based on No. 45 steel substrates, by weight
Amount percentages, includes WC powder 0-10%, Y2O3Powder 0-1%, surplus is 304 rustless steels
Powder.
Aforesaid composite coating material based on No. 45 steel substrates, by weight percentage, bag
WC powder 0.1-10%, Y are included2O3Powder 0.1-1%, surplus is 304 stainless steel powders.
Aforesaid composite coating material based on No. 45 steel substrates, by weight percentage, bag
WC powder 3-7%, Y are included2O3Powder 0.3-0.7%, surplus is 304 stainless steel powders.
Aforesaid composite coating material based on No. 45 steel substrates, described WC powder, Y2O3Powder and
304 stainless steel powders are analytical pure or top grade is pure.
Aforesaid composite coating material based on No. 45 steel substrates, is prepared via a method which:
1. the WC powder of described proportioning, Y are taken2O3Powder and the mixing of 304 stainless steel powders, obtain mixed powder
End；
2. ball-milling medium adds together with mixing material ball grinder, ball milling 4-6h, and ball milling turns
Speed is 120-180r/min, obtains laser cladding powder；
3. by step 2. in the laser cladding powder that obtains at 100-150 DEG C, carry out vacuum do
Dry process 0.8-1.5h, obtains coating material.
Aforesaid composite coating material based on No. 45 steel substrates, described step 2. in ball milling
Medium is 304 stainless steel ball grinding medias or agate ball grinding media, described step 2. in ball grinder
Being 304 stainless steel jar mill or agate jar, the ratio of grinding media to material of abrading-ball medium and mixing material is
10:1。
Aforesaid composite coating material based on No. 45 steel substrates, described step 3. in, vacuum
The baking temperature of dried is 120 DEG C, and the process time is 1h.
A kind of side utilizing aforesaid composite coating material based on No. 45 steel substrates to prepare coating
Method, method is as follows:
1. described coating material is taken；
2. No. 45 steel substrate surfaces are polished flat；
3. utilize special powder preset instrument that coating material is laid in No. 45 steel substrate surfaces；
4. utilize laser thermal processing apparatus that it is carried out laser melting coating, obtain coating.
The method that aforesaid composite coating material based on No. 45 steel substrates prepares coating, described
The scraping article that the preset instrument of special powder is the groove wide with 1mm, coating material tiling thickness
Degree is 0.9-1.1mm.
The method that aforesaid composite coating material based on No. 45 steel substrates prepares coating, described
Laser thermal processing apparatus be HANS-TEL-10000 type CO2LASER HEAT TREATMENT complete set of equipments,
The spot diameter of cladding laser is 3-3.5mm, and laser output power is 2.5-3.5kW, sweeps
Retouching speed is 200-800mm/min, and multi-track overlapping rate is 40%-60%.
Beneficial effects of the present invention: the present invention is by WC powder, Y2O3Powder, 304 stainless steel powders according to
Ball milling after certain proportion mixing, carries out vacuum drying treatment, obtains coating material after ball milling.After will
Coating material is coated in No. 45 steel substrate surfaces, carries out laser melting coating, it is thus achieved that composite coating.
Improve the wear and corrosion behavior on No. 45 steel substrate surfaces, its preparation process is under normal environment
Can complete, preparation technology is simple, economical, is suitable for mass production, is also not easily susceptible to cracking.
Experimental example
In order to further illustrate beneficial effects of the present invention, inventor has done following experiment:
The performance test of material
One, anti-wear performance checking
Is polished in the cladding coating top layer prepared through the present invention, polish black precipitate
Impurity and gray oxide scale, make surfacing；No. 45 base materials are polished equally, makes two
Kind of specimen surface state consistency, utilize reciprocating friction tester to the cladding coating of the present invention and
The anti-wear performance of No. 45 steel substrates carries out contrast demonstration.
Experimental result: as shown in Figure 1, the cladding coating surface of the present invention only occurs slight
Ditch dug with a plow shape polishing scratch；As in figure 2 it is shown, No. 45 steel surfaces occur in that and seriously peel off with mutually more apparent
Macroscopic cracking, inside crack occurs in that the most small fatigue crack, and material is of serious failure.Right
Showing than analysis, the cladding coating prepared through the present invention program has preferable anti-wear performance, from
And substantially improve the antiwear characteristic on No. 45 steel surfaces.
With existing commercial Co base (Co base coating surface grinding defect morphology is as shown in Figure 3),
Finding during the contrast of Ni base coating, cladding coating wearability prepared by the present invention program is the most excellent.
Two, corrosion resisting property checking
Use IM-6 type electrochemical workstation that the corrosion resisting property of composite coating and base material is carried out right
Than analyzing, three-electrode system is used to test in 200mL beaker.With cladding layer anode sample it is
Working electrode, reference electrode is saturated calomel electrode (SCE), and auxiliary electrode is Pt electrode,
Sample work area is 1cm2.Test(ing) medium NaCl solution (Solute mass fraction is 3.5%).
During determination of polarization curve, scanning speed is 1mV/s, and sweep limits is-1～0.5V.
The polarization curve of composite coating of the present invention, traditional F e base coating and No. 45 steel substrates such as figure
Shown in 4, Tafel curve extrapolation is used to determine natural corrosion potential and certainly corrode electricity
Current density Icorr.As shown in Figure 4: the natural corrosion potential ratio 45 of composite coating
Steel substrate height 390mV, this explanation composite coating can substantially reduce the corrosion tendency of base material；Multiple
Close coating corrosion current density Icorr be 4.4 μ A than No. 45 low 8.2 μ A of steel substrate,
The corrosion rate of this explanation coating is much smaller than base material.Composite coating the most of the present invention certainly corrode electricity
Ecorr is higher than traditional Fe base coating in position, and corrosion current density Icorr is than traditional F e
Base coating is low, and performance is better than traditional Fe base coating.Thus composite coating can be effectively improved
The corrosion resisting property of substrate surface.
Accompanying drawing explanation
Accompanying drawing 1 is the surface grinding defect morphology of composite coating；
Accompanying drawing 2 is the surface grinding defect morphology of No. 45 steel substrates；
Accompanying drawing 3 is general commercial Co base coating surface grinding defect morphology；
Accompanying drawing 4 is that composite coating, No. 45 steel substrates and traditional F e base coating are at 3.5%NaCl
Polarization curve in solution.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated, but is not intended as the present invention
The foundation limited.
Embodiment 1:
Coating material formulation: WC powder: 5%, Y2O3Powder: 5%, surplus is 304 stainless steel powders.
The manufacture method of coating material: by the 304 stainless steel ball grinding medias that ratio of grinding media to material is 10:1
Add 304 stainless steel jar mill with the powder described in formula, carry out ball milling 5h, rotational speed of ball-mill
150r/min, obtains laser cladding powder；Then laser cladding powder is carried out at 120 DEG C true
Empty dried 1h, obtains coating material.
Embodiment 2:
Coating material formulation: WC powder: 0.1%, Y2O3Powder: 1%, surplus is 304 stainless steel powders.
Coating material manufacture method: by 304 stainless steel ball grinding medias that ratio of grinding media to material is 10:1 and
Powder described in formula adds 304 stainless steel jar mill, carries out ball milling 4h, rotational speed of ball-mill
180r/min, obtains laser cladding powder；Then laser cladding powder is carried out at 100 DEG C true
Empty dried 1.5h, obtains coating material.
Embodiment 3:
Coating material formulation: WC powder: 10%, Y2O3Powder: 0.1%, surplus is 304 rustless steels
Powder.
Coating material manufacture method: by agate ball grinding media that ratio of grinding media to material is 10:1 and formula institute
The powder stated adds agate jar, carries out ball milling 4h, rotational speed of ball-mill 120r/min, obtains sharp
Light cladding powder；Then laser cladding powder is carried out at 150 DEG C vacuum drying treatment 0.8h,
Obtain coating material.
Embodiment 4:
Coating production: No. 45 steel substrate surfaces are polished flat, goes to the removal of impurity and surface
Oxide, utilizes to be laid in by coating material with the scraping article of groove wide for 1mm and polished
On No. 45 steel substrates, control powder thickness is 1mm；By HANS-TEL-10000 type CO2Swash
Photothermal treatment complete set of equipments carries out laser melting coating, and laser spot diameter is 3.3mm, scanning speed
Degree is 500mm/min, and laser output power is 3kW, and multi-track overlapping rate is 50%.
Embodiment 5:
Coating production: No. 45 steel substrate surfaces are polished flat, goes to the removal of impurity and surface
Oxide, utilizes to be laid in by coating material with the scraping article of groove wide for 1mm and polished
On No. 45 steel substrates, control powder thickness is 1.1mm；By HANS～TEL～10000 types
CO2LASER HEAT TREATMENT complete set of equipments carries out laser melting coating to it, and laser spot diameter is 3.5mm,
Scanning speed is 200mm/min, and laser output power is 3.5kW, and multi-track overlapping rate is 60%.
Embodiment 6:
Coating production: No. 45 steel substrate surfaces are polished flat, goes to the removal of impurity and surface
Oxide, utilizes to be laid in by coating material with the scraping article of groove wide for 1mm and polished
On No. 45 steel substrates, control powder thickness is 0.9mm；By HANS～TEL～10000 types
CO2LASER HEAT TREATMENT complete set of equipments carries out laser melting coating to it, and laser spot diameter is 3mm,
Scanning speed is 800mm/min, and laser output power is 2.5kW, and multi-track overlapping rate is 40%.
Claims (10)
1. a composite coating material based on No. 45 steel substrates, it is characterised in that: percentage by weight
Than meter, include WC powder 0-10%, Y2O3Powder 0-1%, surplus is 304 stainless steel powders.
Composite coating material based on No. 45 steel substrates the most according to claim 1, its feature
It is: by weight percentage, includes WC powder 0.1-10%, Y2O3Powder 0.1-1%, remaining
Amount is 304 stainless steel powders.
Composite coating material based on No. 45 steel substrates the most according to claim 1, its feature
It is: by weight percentage, includes WC powder 3-7%, Y2O3Powder 0.3-0.7%, surplus
It is 304 stainless steel powders.
Composite coating material based on No. 45 steel substrates the most according to claim 1, its feature
It is: described WC powder, Y2O3Powder and 304 stainless steel powders are analytical pure or top grade is pure.
5. according to the composite coating materials based on No. 45 steel substrates described in any one of claim 1-4,
It is characterized in that, be prepared via a method which:
1. the WC powder of described proportioning, Y are taken2O3Powder and the mixing of 304 stainless steel powders, obtain mixed powder
End；
2. ball-milling medium adds together with mixing material ball grinder, ball milling 4-6h, and ball milling turns
Speed is 120-180r/min, obtains laser cladding powder；
3. by step 2. in the laser cladding powder that obtains at 100-150 DEG C, carry out vacuum do
Dry process 0.8-1.5h, obtains coating material.
Composite coating material based on No. 45 steel substrates the most according to claim 5, its feature
Be: described step 2. in ball-milling medium be that 304 stainless steel ball grinding medias or Achates ball milling are situated between
Matter, described step 2. in ball grinder be 304 stainless steel jar mill or agate jar, abrading-ball
The ratio of grinding media to material of medium and mixing material is 10:1.
Composite coating material based on No. 45 steel substrates the most according to claim 5, its feature
Be: described step 3. in, the baking temperature of vacuum drying treatment is 120 DEG C, process the time
For 1h.
8. prepared by the composite coating materials based on No. 45 steel substrates utilized described in claim 1
The method of coating, it is characterised in that method is as follows:
1. described coating material is taken；
2. No. 45 steel substrate surfaces are polished flat；
3. utilize special powder preset instrument that coating material is laid in No. 45 steel substrate surfaces；
4. utilize laser thermal processing apparatus that it is carried out laser melting coating, obtain coating.
Composite coating material based on No. 45 steel substrates the most according to claim 8 prepares coating
Method, it is characterised in that: the preset instrument of described special powder is the groove wide with 1mm
Scraping article, coating material tiling thickness be 0.9-1.1mm.
Composite coating materials based on No. 45 steel substrates the most according to claim 8 preparation is coated with
The method of layer, it is characterised in that: described laser thermal processing apparatus is HANS-TEL-10000
Type CO2LASER HEAT TREATMENT complete set of equipments, the spot diameter of cladding laser is 3-3.5mm, laser
Output is 2.5-3.5kW, and scanning speed is 200-800mm/min, multi-track overlapping rate
For 40%-60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304847.8A CN105803454A (en) | 2016-05-10 | 2016-05-10 | Composite coating material based on 45# steel substrate and preparing method of coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610304847.8A CN105803454A (en) | 2016-05-10 | 2016-05-10 | Composite coating material based on 45# steel substrate and preparing method of coating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107955948A (en) * | 2017-11-30 | 2018-04-24 | 广东省新材料研究所 | A kind of preparation method in T-shaped wear-resisting joint |
| CN114574857A (en) * | 2022-04-28 | 2022-06-03 | 中南大学湘雅医院 | Coating material and application thereof in field of surgical knife |
| CN114713843A (en) * | 2022-03-31 | 2022-07-08 | 上海理工大学 | Forming method of 304L stainless steel component with strong helium brittleness resistance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955948A (en) * | 2017-11-30 | 2018-04-24 | 广东省新材料研究所 | A kind of preparation method in T-shaped wear-resisting joint |
| CN114713843A (en) * | 2022-03-31 | 2022-07-08 | 上海理工大学 | Forming method of 304L stainless steel component with strong helium brittleness resistance |
| CN114713843B (en) * | 2022-03-31 | 2023-04-25 | 上海理工大学 | Forming method of high helium brittleness resistant 304L stainless steel member |
| CN114574857A (en) * | 2022-04-28 | 2022-06-03 | 中南大学湘雅医院 | Coating material and application thereof in field of surgical knife |
| CN114574857B (en) * | 2022-04-28 | 2022-07-08 | 中南大学湘雅医院 | Coating material and application thereof in field of surgical knife |
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Application publication date: 20160727 |