CN107794484A - A kind of anti-skidding amorphous alloy coating of wear-and corrosion-resistant and preparation method thereof - Google Patents
A kind of anti-skidding amorphous alloy coating of wear-and corrosion-resistant and preparation method thereof Download PDFInfo
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- CN107794484A CN107794484A CN201610747362.6A CN201610747362A CN107794484A CN 107794484 A CN107794484 A CN 107794484A CN 201610747362 A CN201610747362 A CN 201610747362A CN 107794484 A CN107794484 A CN 107794484A
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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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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Abstract
The invention discloses anti-skidding amorphous alloy coating of a kind of wear-and corrosion-resistant and preparation method thereof, belong to amorphous alloy coating technical field.The coating is prepared using the method for HVAF HVAFs, and HVAF HVAFs realize low temperature, high-speed process, while avoid using substantial amounts of oxygen using gaseous fuel, compressed airs such as propane, propylene as combustion adjuvant.The coating composition scope (mass percent) that this method obtains：Cr：13%~25%；Mo：10%~30%；W：0%~8%；Mn：0%~5%；B：1%~4%；Si：0%~4%；C：0%~4%；Fe：40%~65%；Y：0%~5%；Ca：0%~1%.Other impurities content≤3%.The coating uniform obtained using this method, porosity is low, has higher hardness and corrosion resistance, and non-skid property is excellent.
Description
Technical field
The present invention relates to amorphous alloy coating technical field, and in particular to a kind of anti-skidding amorphous alloy coating of wear-and corrosion-resistant and
Its preparation method, available for the abrasion resistant and corrosion resistant nonskid coating prepared under corrosion or non-corrosive environment.
Background technology
Amorphous alloy (also known as glassy metal) compared with conventional polycrystalline metal material, amorphous alloy show long-range without
Sequence, the architectural characteristic of shortrange order, there is many excellent mechanics and physical property.Amorphous is very heavy in glassy metal field
The alloy system wanted, it not only has excellent high-strength characteristic, and also shows protrusion at corrosion-resistant, wear-resistant aspect
Performance.In addition, its prepare cost it is cheap, have extremely be widely applied prospect.
HVAF HVAFs are a kind of surface strengthening technologies, are the important components of surface engineering technology.It
It is that metal alloy powders are heated to melting or semi-molten state using combustion flame, then by flame stream or compressed air with one
Constant speed degree is ejected into pretreated matrix surface, deposition and being formed have various functions (such as anticorrosion, wear-resisting, high temperature resistant and
It is anti-oxidant etc.) face coat technology.It is applied widely in industries such as Aero-Space, petrochemical industry, atomic energy.
In industrial circle, steel is widely used as a kind of material of high-performance and low-cost, but in harsh severe ring
Under border, such as corrosive environment, fretting wear environment, the service life of steel drastically shorten or can not meet to require.Therefore need
The coating that a kind of protective nature and performance improve is coated on its surface, to reach requirement.Excellent resistance to of amorphous alloy coating
Corrosion and nonmagnetic, can cause it on advanced ship housing, as anti-corrosion coating；Its ultrahigh hardness and excellent wear-resisting resistance to
Corrosion energy, the water pump blade to work in the presence of a harsh environment provide high-quality protection；Its excellent corrosion resistance and high boron contain
Amount, a kind of new materials application carrier is provided for nuclear waste disposal industry, its excellent non-skid property can for drying, water,
Reliable frictional force is provided under oil environment, provides effective solution for the brake under particular surroundings, braking etc., certainly also
There are many untapped application fields.Therefore, high-performance amorphous alloy coating of the exploitation with China's independent intellectual property right has
There is great strategic importance.
The content of the invention
In order to solve the corrosion and abrasion of common iron under corrosive environment, part is improved in corrosion, wear environment even core
The service life and usage performance of radiation environment, the present invention provide a kind of anti-skidding amorphous alloy coating of wear-and corrosion-resistant and its preparation side
Method.
The technical solution adopted in the present invention is as follows：
A kind of anti-skidding amorphous alloy coating of wear-and corrosion-resistant, weight percentage, the coating chemical composition are as follows：Cr：
13%~25%；Mo：10%~30%；W：0%~8%；Mn：0%~5%；B：1%~4%；Si：0%~4%；C：0%
~4%；Fe：40%~65%；Y：0%~5%；Ca：0%~1%.In the coating chemical composition, other impurities content≤
3wt.%.
The substrate of the amorphous alloy coating is carbon steel, stainless steel or particular surroundings steel.
The amorphous alloy coating is completely amorphous or incomplete non crystalline structure, amorphous content in incomplete non crystalline structure
>=40wt.%.
The bond strength of the amorphous alloy coating and substrate is 52MPa, coating hardness 1071HV.
The coating is prepared using the method for HVAF HVAFs；In this method, propane and/or third are used
Alkene uses the flexibility of hydrogen and nitrogen raising technique as gaseous fuel, compressed air as combustion adjuvant.
The amorphous powdered alloy that the HVAF HVAFs use is spherical or spherical, uses gas atomization side
Method obtains.
The HVAF HVAFs specific process parameter is：88~98psi of air pressure；Gaseous-pressure 70~
80psi；Gas flow：125~145SLPM；Hydrogen flowing quantity：20~40SLPM；Nitrogen flow：20~30SLPM；Powder feeding rate 5
~10rpm；150~300mm of spray distance.
The present invention has the beneficial effect that：
1st, the amorphous alloy coating prepared for existing plasma spraying or other heat spraying methods, in use
It was found that the shortcomings of its amorphous formation ability is poor, it is difficult to prepare, and coating is more crisp.Present invention uses HVAF HVAF systems
Standby amorphous alloy coating, this method have that speed is fast, oxygen content is low, heat is low, low cost and other advantages, avoid coating well
Oxidation and problems of excessive heat, reduce the fragility of coating, expand the use range of coating.
2nd, the coating uniform obtained using the inventive method, porosity is low (≤1%), have higher hardness (>=
800HV), and there is good corrosion resistance (substantially corroding do not occur for 2000 hours in neutral NaCl salt fogs), non-skid property is excellent
Different (coefficient of friction is up to 0.7 under water mill state).The alloy powder microstructure that this method uses is spherical in shape, there is micro satellite group
Knit, flow of powder performance is excellent (≤18s/50g), and the coating of acquisition is in non crystalline structure, has partially-crystallized phase to occur, content of amorphous
>=40%.
3rd, the bond strength of amorphous alloy coating of the present invention and substrate is big, and hardness is big, has excellent wear-resisting, anti-corrosion and anti-
Slip energy, wear-resistant and anti-skidding performance requirement can be met in corrosive environment.
Brief description of the drawings
Fig. 1 is the powder morphology of embodiment 1 and powder coating XRD.
Fig. 2 is the coating cross sections of embodiment 1 and surface SEM photograph；Wherein：(a) section；(b) surface.
Fig. 3 is the coating of embodiment 1 and congruent completely amorphous band DSC curve.
Fig. 4 is the salt mist experiment result of embodiment 1.
Fig. 5 is surface topography after the coefficient of friction of embodiment 1 and coating abrasion.
Fig. 6 is the coating surface of embodiment 2, section SEM photograph and XRD spectrum；Wherein：(a) coating surface；(b) section SEM
Photo and XRD spectrum.
Fig. 7 is the coating of embodiment 2 and substrate (304 stainless steel) electrochemical tests.
Fig. 8 is the coating cross sections of embodiment 3 and XRD.
Fig. 9 is the coating DSC collection of illustrative plates of embodiment 3.
Figure 10 is the coating Electrochemical results of embodiment 3.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
Embodiment 1：
Amorphous powder is prepared using ultrasonic gas atomization equipment.Its powder particle pattern such as Fig. 1.It can be seen that
Powder is mostly spherical in shape, and carries a small amount of satellite tissue.The powder flowbility is 16.8s/50g, suitable for HVAF supersonic speed
Flame-spraying.Powder is amorphous structure, with a small amount of amorphous phase.
Spraying raw material is done using above-mentioned powder (it is 15 μm~52 μm to take particle diameter), utilizes HVAF supersonic velocity flame plating equipments
Prepare amorphous alloy coating (substrate is ordinary carbon steel).Substrate is done into degreasing and rust removal processing first, using spray gun to substrate surface
Blast, increase the roughness on surface.HVAF HVAF specific process parameters are：Air pressure 90psi；Gaseous-pressure
75psi；Gas flow：130SLPM；Hydrogen flowing quantity：25SLPM；Nitrogen flow：22SLPM；Powder feeding rate 6rpm；Spray distance
200mm。
The chemical composition (mass percent) of the coating of acquisition is Cr：18%；Mo：14%；W：5%；Mn：2%；B：
1.5%；Si：2%；C：1%；Fe surpluses.Coating structure is uniform, and no cofusing particle is few, porosity it is low (<1%), oxygen content is only
0.2%.The bond strength of coating and substrate is 52MPa.The X-ray diffraction (XRD) of coating, cross sectional scanning electron microscope
(SEM) result is respectively such as Fig. 1,2.To obtain the amorphous content of coating, the differential thermal of coating and completely amorphous band has been done respectively
Analyze (DSC) test, as a result such as Fig. 3, coating amorphous content about 68% after calculating.
The hardness number of amorphous alloy coating is measured using micro Vickers MVK-H3, exerts pressure as 100g, holds
The continuous time is 10 seconds, in test process, avoids testing near the defects of hole as far as possible, the 10 of each sample test different zones
Individual numerical value, finally averages.Measurement result, the coating hardness are 1071HV.
Photo such as Fig. 4 after sample continues 2000 hours in 30 DEG C of neutral 1mol/L NaCl salt fogs, does not have found to corrode, this
Invention amorphous alloy coating has excellent decay resistance.
The friction and wear behavior of coating is carried out in CETR UMT-3MT-220 multifunction friction wears testing machines, back and forth
Distance is 2mm, friction pair Al2O3, apply load 30N, linear velocity 10mm/s, 1.5 hours duration.Non-crystaline amorphous metal applies
Layer and friction pair (Al2O3Ball) coefficient of friction be 1.6 (Fig. 5)；Amorphous alloy coating weightlessness of the present invention is 0.0009g, polishing scratch
SEM scanned photographs such as Fig. 7.Polishing scratch size is 2.51mm (length)；1.48mm (width)；0.03mm (depth).According to coating layer thickness 0.5mm
Calculate, wear extent is about 6% within 1.5 hours.Show excellent abrasion resistance properties.Coating is tested to dry and moisture film state
Under, the secondary coefficient of friction with rubber friction, respectively 0.91 and 0.72, it is shown that higher non-skid property.
Embodiment 2：
Amorphous powder is obtained using ultrasonic gas atomization equipment.Its powder particle pattern is mostly spherical in shape, is amorphous structure,
With a small amount of amorphous phase.The powder flowbility (17.5s/g) is splendid, suitable for HVAF HVAFs.
Raw material is done using above-mentioned powder (it is 15 μm~52 μm to take particle diameter), is prepared using HVAF supersonic velocity flame plating equipments
Amorphous alloy coating (substrate is 304 stainless steels).Substrate is done into degreasing and rust removal processing first, substrate surface blown using spray gun
Sand, increase the roughness on surface.HVAF HVAF specific process parameters are：Air pressure 95psi；Gaseous-pressure
74psi；Gas flow：130SLPM；Hydrogen flowing quantity：24SLPM；Nitrogen flow：25SLPM；Powder feeding rate 6rpm；Spray distance
190mm。
The composition (mass percent) of coating is：Cr：15%；Mo：20%；B：2.1%；Si：0.2%；C：3.5%；Y：
3.5%；Ca：0.5%；More than Fe.The coating structure dense uniform (Fig. 6) of acquisition, porosity is low (0.73%), and no cofusing particle is few,
Oxygen content is only 0.11%.The coating amorphous formation ability is preferable, amorphous content about 79% (Fig. 6), coating and substrate
Bond strength is 50MPa, and the hardness number of amorphous alloy coating is measured using micro Vickers MVK-H3, exert pressure for
100g, duration are 10 seconds, in test process, avoid testing near the defects of hole as far as possible, and each sample test is different
10 numerical value in region, finally average.Measurement result, the coating hardness are 912HV.
Surveyed using the type potentiostats of Potentionstat/Galvanostat Model 273 of EG＆G companies of U.S. production
Determine the electrochemical behavior of coating, measure its polarization curve such as Fig. 7.As seen from the figure, coating is shown very in 1M hydrochloric acid solutions
Good passivation behavior, passivation current is low, and about 10-4A/cm2, passivation section is big, about 1.2V.Amorphous alloy coating tool of the present invention
There is excellent decay resistance.
Embodiment 3：
Amorphous powder is obtained using ultrasonic gas atomization equipment.Its powder particle pattern is mostly in ball, for containing a small amount of amorphous
The amorphous structure of phase.The flow of powder performance is excellent (17.2s/50g), suitable for HVAF HVAFs.
Raw material is done using above-mentioned powder (it is 15 μm~52 μm to take particle diameter), is prepared using HVAF supersonic velocity flame plating equipments
Amorphous alloy coating (substrate is 304 stainless steels).Substrate is done into degreasing and rust removal processing first, substrate surface blown using spray gun
Sand, increase the roughness on surface.HVAF HVAF specific process parameters are：Air pressure 93psi；Gaseous-pressure
72psi；Gas flow：125SLPM；Hydrogen flowing quantity：24SLPM；Nitrogen flow：25SLPM；Powder feeding rate 7rpm；Spray distance
200mm。
The composition (mass percent) of coating is：Cr：18.3%；Mo：14%；W：5.8；B：3.2%；Si：1.3%；C：
0.9%；Ca：0.6%；More than Fe.The coating structure dense uniform (Fig. 8) of acquisition, porosity is low (0.53%), and no cofusing particle is few,
Oxygen content is only 0.15%.The bond strength of the coating amorphous content about 82% (Fig. 9), coating and substrate is 55MPa, profit
The hardness number of amorphous alloy coating is measured with micro Vickers MVK-H3, is exerted pressure as 100g, duration 10
Second, in test process, avoid testing near the defects of hole as far as possible, 10 numerical value of each sample test different zones, most
After average.Measurement result, the coating hardness are 1052HV.
Surveyed using the type potentiostats of Potentionstat/Galvanostat Model 273 of EG＆G companies of U.S. production
Determine the electrochemical behavior of coating, measure its polarization curve such as Figure 10.As seen from the figure, coating is shown in 3.5%NaCl solution
Good passivation behavior, passivation current is low, and about 10-6A/cm2, it is passivated section about 1.1V.Amorphous alloy coating of the present invention
With excellent decay resistance.
Claims (8)
- A kind of 1. anti-skidding amorphous alloy coating of wear-and corrosion-resistant, it is characterised in that：Weight percentage, the coating chemical composition It is as follows：Cr：13%~25%；Mo：10%~30%；W：0%~8%；Mn：0%~5%；B：1%~4%；Si：0%~ 4%；C：0%~4%；Fe：40%~65%；Y：0%~5%；Ca：0%~1%.
- 2. the anti-skidding amorphous alloy coating of wear-and corrosion-resistant according to claim 1, it is characterised in that：The coating chemical composition In, impurity content≤3wt.%.
- 3. the anti-skidding amorphous alloy coating of wear-and corrosion-resistant according to claim 1, it is characterised in that：The amorphous alloy coating Substrate be carbon steel, stainless steel or particular surroundings steel.
- 4. the anti-skidding amorphous alloy coating of wear-and corrosion-resistant according to claim 1, it is characterised in that：The amorphous alloy coating For completely amorphous or incomplete non crystalline structure, amorphous content >=40wt.% in incomplete non crystalline structure.
- 5. the anti-skidding amorphous alloy coating of wear-and corrosion-resistant according to claim 1, it is characterised in that：The amorphous alloy coating Bond strength with substrate is 52MPa, coating hardness 1071HV.
- 6. the preparation method of the anti-skidding amorphous alloy coating of wear-and corrosion-resistant according to claim 1, it is characterised in that：The coating It is to be prepared using the method for HVAF HVAFs；In this method, fired using propane and/or propylene as gas Material, compressed air use the flexibility of hydrogen and nitrogen raising technique as combustion adjuvant.
- 7. the preparation method of the anti-skidding amorphous alloy coating of wear-and corrosion-resistant according to claim 6, it is characterised in that：It is described The amorphous powdered alloy that HVAF HVAFs use is spherical or spherical, is obtained using gas atomization method.
- 8. the preparation method of the anti-skidding amorphous alloy coating of wear-and corrosion-resistant according to claim 6, it is characterised in that：It is described HVAF HVAF specific process parameters are：88~98psi of air pressure；70~80psi of gaseous-pressure；Combustion gas stream Amount：125~145SLPM；Hydrogen flowing quantity：20~40SLPM；Nitrogen flow：20~30SLPM；5~10rpm of powder feeding rate；Spraying 150~300mm of distance.
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Cited By (8)
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|---|---|---|---|---|
| CN108842125A (en) * | 2018-07-11 | 2018-11-20 | 东创博实(沈阳)科技有限公司 | A kind of metal-cermic coating continuous casting crystallizer copper plate and preparation method thereof |
| CN109338250A (en) * | 2018-10-29 | 2019-02-15 | 昆明理工大学 | A kind of iron-based porous amorphous alloy and preparation method |
| CN109594032A (en) * | 2018-11-14 | 2019-04-09 | 中国科学院金属研究所 | A method of improving alloy coat impact resistance |
| CN110835718A (en) * | 2019-11-29 | 2020-02-25 | 中国科学院金属研究所 | Substrate cooling method in amorphous alloy coating preparation process and amorphous alloy coating preparation process |
| CN112359311A (en) * | 2020-09-23 | 2021-02-12 | 中国科学院金属研究所 | Method for reducing longitudinal cracks of thermal spraying super stainless steel coating |
| US20210197259A1 (en) * | 2019-12-31 | 2021-07-01 | Cornerstone Intellectual Property, Llc | Structured amorphous metals (sam) feedstock and products thereof |
| CN113166916A (en) * | 2018-08-14 | 2021-07-23 | 美泰金属科技私人有限公司 | Pipe with amorphous inner surface coating and method of making the same |
| CN114945769A (en) * | 2020-01-17 | 2022-08-26 | 可隆工业株式会社 | Pipe and manufacturing method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842125A (en) * | 2018-07-11 | 2018-11-20 | 东创博实(沈阳)科技有限公司 | A kind of metal-cermic coating continuous casting crystallizer copper plate and preparation method thereof |
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| CN113166916A (en) * | 2018-08-14 | 2021-07-23 | 美泰金属科技私人有限公司 | Pipe with amorphous inner surface coating and method of making the same |
| CN109338250A (en) * | 2018-10-29 | 2019-02-15 | 昆明理工大学 | A kind of iron-based porous amorphous alloy and preparation method |
| CN109594032A (en) * | 2018-11-14 | 2019-04-09 | 中国科学院金属研究所 | A method of improving alloy coat impact resistance |
| CN110835718A (en) * | 2019-11-29 | 2020-02-25 | 中国科学院金属研究所 | Substrate cooling method in amorphous alloy coating preparation process and amorphous alloy coating preparation process |
| US20210197259A1 (en) * | 2019-12-31 | 2021-07-01 | Cornerstone Intellectual Property, Llc | Structured amorphous metals (sam) feedstock and products thereof |
| US11781205B2 (en) * | 2019-12-31 | 2023-10-10 | Liquidmetal Coatings Enterprises, Llc | Structured amorphous metals (SAM) feedstock and products thereof |
| CN114945769A (en) * | 2020-01-17 | 2022-08-26 | 可隆工业株式会社 | Pipe and manufacturing method thereof |
| CN112359311A (en) * | 2020-09-23 | 2021-02-12 | 中国科学院金属研究所 | Method for reducing longitudinal cracks of thermal spraying super stainless steel coating |
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Application publication date: 20180313 |
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