CN106835132A - A kind of preparation method of double-layer high-strength corrosion resistant iron base amorphous composite coating - Google Patents
A kind of preparation method of double-layer high-strength corrosion resistant iron base amorphous composite coating Download PDFInfo
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- CN106835132A CN106835132A CN201611211678.XA CN201611211678A CN106835132A CN 106835132 A CN106835132 A CN 106835132A CN 201611211678 A CN201611211678 A CN 201611211678A CN 106835132 A CN106835132 A CN 106835132A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/002—Making metallic powder or suspensions thereof amorphous or microcrystalline
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
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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
- C23C24/106—Coating with metal alloys or metal elements only
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/026—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one amorphous metallic material layer
-
- 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
- C23C4/08—Metallic material containing only metal elements
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
Abstract
The invention discloses a kind of preparation method of double-layer high-strength corrosion resistant iron base amorphous composite coating, belong to amorphous coating preparing technical field.The present invention is applied to stainless-steel sheet surface by the way that mixing iron-based powder is melted into simultaneously plasma spray, form degree of crystallization amorphous deposit higher, then after nickel plating forms rotproofness coating, again by its laser melting coating, form amorphous deposit, by crystallinity intermediate layer higher, hybrid alloys secondary crystallization degree when delaying laser melting coating, effectively strengthen crystal dynamics intensity, obtained double-layer wear-resistant corrosion resistant iron base amorphous composite coating of the invention has excellent wear-corrosion resistance, there is huge potential in coating material application aspect, and conjugation is high between the double-layer wear-resistant corrosion resistant iron base amorphous composite coating coating and matrix of present invention preparation, it is with a wide range of applications and use value.
Description
Technical field
The invention discloses a kind of preparation method of double-layer high-strength corrosion resistant iron base amorphous composite coating, belong to amorphous coating
Preparing technical field.
Background technology
1967, people prepared Fe-based amorphous alloy first, found in succession again afterwards many with excellent soft magnet performance
Fe base amorphous alloys.Fe-based amorphous alloy in addition to the characteristic with general non-crystaline amorphous metal, also with following side
The advantage in face：（1）The intensity and hardness of superelevation：Generally nonmetallic content is higher in Fe base noncrystal alloys, and alloy inside is present
The chemical bond of metal metalloid, makes Fe base noncrystal alloys show fracture strength higher.The fracture strength of FeNbB bulk amorphous alloy
4.85GPa is reached, far above the 2.9GPa of crystalline state super-steel, also above other bulk amorphous alloy.And, most Fe bases are non-
The microhardness of peritectic alloy reaches 1000HV.（2）Good anti-wear performance：Fe base noncrystal alloys are in room temperature even in the model of 573K
All there is in enclosing good wearability, better than general tool steel, and most of system non-crystaline amorphous metal.（3）Excellent corrosion resistant
Corrosion energy：Fe base noncrystal alloys have the uniformity of height and can to form fine and close, uniform spreadability on surface good
Purification membrane, thus with good decay resistance, it is mainly reflected in excellent resistance to Pitting corrosion behavior and purifying behavior.
Marine environment is a kind of extremely complex environment, and sea faring ship deck, offshore platform face extremely harsh
Service condition, people overcome these unfavorable conditions frequently with face coat, reach anticorrosion, anti abrasive effect, while
In order to ensure the security of movable personnel and equipment, also require that face coat has certain non-skid property.Therefore, people are carried out
Various trials, after eliminating, at present mainly there is two kinds, organic coating and metal-cermic coating.Organic coating is mainly ring
Oxygen tree fat etc., it has the advantages such as good anticorrosive property, weatherability, water resistance, easy construction, but molecular chain structure is determined
Its easily aging and easy to crack shortcoming, while also there is pollution.And metal-cermic coating feature is excellent anti-wear performance,
But decay resistance is poor, and it is serious or even all brilliant to irradiate the Fe base amorphous alloy coatings crystallization for preparing by laser
Change, make it in the presence of tensile load, deformation is only limitted in the shear band of height localization, shear band once germinates, just fast
Speed extends, and causes integral material to be quickly broken, and wear-resisting intensity is relatively low, so it is relatively low to develop a kind of crystallization degree
Iron-based amorphous coating also meets existing application to iron-based amorphous coating while having the demand of excellent wear-resisting type and corrosion resistance.
The content of the invention
Present invention mainly solves technical problem：It is serious for existing corrosion-resistant Fe base amorphous alloys coating crystallization, lead
Cause its intensity relatively low, the not enough defect of anti-wear performance, there is provided one kind is led to by plasma spraying iron-based ceramics amorphous intermediate layer
Cross after the nickel plating of intermediate layer laser melting coating film forming again, buffered crystal crystallization degree, while enhancing crystal corrosion resistance, effectively
The method for improving crystal abrasion resistance, the present invention is applied to stainless-steel sheet table by the way that mixing iron-based powder is melted into simultaneously plasma spray
Face, forms degree of crystallization amorphous deposit higher, then by nickel plating formation rotproofness coating after, then by its laser melting coating, shape
Into amorphous deposit, by crystallinity intermediate layer higher, hybrid alloys secondary crystallization degree when delaying laser melting coating, effectively enhancing
Crystal dynamics intensity, and with excellent decay resistance.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）304L stainless-steel sheets are chosen, successively with 4#, its surface of the sand papering of 8#, 12#, after the completion of waiting to polish, with anhydrous
After ethanol washs 3~5 times, stand dry at room temperature, 25~30min of the pre-heat treatment at being subsequently placed at 120~125 DEG C,
Preheating stainless-steel sheet is prepared into, it is standby；
（2）It is 55% molybdenum-iron powder, 2~3 parts of boron of boron mass content 10% to weigh 45~60 parts of iron powders, 5~8 parts of molybdenum mass contents respectively
Iron powder, 15~20 parts of silica and 3~5 parts of manganese dioxide are placed in ball grinder, under 350~400r/min ball milling 3~
5h, the mesh sieve of subsequent mistake 300 collects mixing and ball milling powder, mixing and ball milling powder is placed in graphite crucible, then graphite crucible is put
In 120~130 DEG C of vacuum tube furnaces, then logical argon gas excludes air, and under an argon atmosphere, 10~15min of heat-insulation preheating is treated
After the completion of preheating, 15~20Pa is evacuated to, then 1200~1300 DEG C, insulation melting 10 are warming up to by 8 DEG C/min rate programs
~15min；
（3）After the completion for the treatment of that insulation is melted, then logical argon pressurization is to 1.8~2.0MPa, by mixing and ball milling powder atomization system after melting
Powder, controls draft-tube diameter for 8~10mm, and atomization temperature is 1250~1400 DEG C, and powder by atomization simultaneously crosses 300 mesh sieves, collects
Iron(-)base powder；
（4）By step（1）Standby preheating stainless-steel sheet is placed in plasma spray apparatus, by the ferrous alloy of above-mentioned preparation
Powder spray controls spraying ar pressure for 0.5~0.6MPa to stainless-steel sheet surface is preheated, and hydrogen gas pressure 0.2~
0.3MPa, rotating disk powder feed rate is 1r/min, and carrier gas air pressure is 0.3~0.4MPa, and carrier gas flux is 6~8L/min, and spray gun is moved
Dynamic speed is 150~180mm/s, control coating thickness for 15~25 μm, it is to be sprayed after the completion of, compress sky with 0.3~0.5MPa
Gas carries out jet and is cooled to room temperature, is prepared into Fe-based amorphous basal plate；
（5）As negative electrode, graphite rod is anode to Fe-based amorphous basal plate with above-mentioned preparation, respectively by negative electrode and anode pickling in
In 300g/L sulfamic acid nickel plating solutions, the 5A/dm produced by dc source2Current density coating film treatment, control plating temperature
It is 40~45 DEG C to spend, and after 8~10min of plating, the sheet material that nickel plating is completed takes out and rinsed with clear water and dried naturally, is prepared into
Nickel plating amorphous coating；
（6）The nickel plating amorphous coating of above-mentioned preparation is placed under laser coating device, setting laser power is 1.8~2.5kW, light
Spot diameter is 3mm, and sweep speed is 5mm/s, connects the rate of taking for 50%, is passed through argon gas and is protected coaxial, it is to be coated after the completion of it is quiet
Put 45~60min of cooling, you can be prepared into a kind of double-layer wear-resistant corrosion resistant iron base amorphous composite coating.
Double-layer wear-resistant corrosion resistant iron base amorphous composite coating porosity prepared by the present invention is 0.72~0.75%, and surface is thick
Rugosity is 9.35~9.42 μm, while microhardness is up to 1280HV, under the conditions of dry sliding friction, coating abrasion rate is matrix
1/8, Simultaneous purification is interval wider, and pitting potential is 1.2~1.3V.
The beneficial effects of the invention are as follows：
（1）Obtained double-layer wear-resistant corrosion resistant iron base amorphous composite coating of the invention has excellent wear-corrosion resistance,
Coating material application aspect has huge potential；
（2）Conjugation is high between the double-layer wear-resistant corrosion resistant iron base amorphous composite coating coating and matrix of present invention preparation, has
It is widely applied prospect and use value.
Specific embodiment
Choose 304L stainless-steel sheets, successively with 4#, its surface of the sand papering of 8#, 12#, after the completion of waiting to polish, with nothing
After water-ethanol washs 3~5 times, stand dry at room temperature, the pre-heat treatment 25 at being subsequently placed at 120~125 DEG C~
30min, is prepared into preheating stainless-steel sheet, standby；It is 55% molybdenum to weigh 45~60 parts of iron powders, 5~8 parts of molybdenum mass contents respectively
Iron powder, 2~3 parts of FeB powders of boron mass content 10%, 15~20 parts of silica and 3~5 parts of manganese dioxide are placed in ball grinder
In, 3~5h of ball milling under 350~400r/min, the mesh sieve of subsequent mistake 300 collects mixing and ball milling powder, and mixing and ball milling powder is put
In graphite crucible, then graphite crucible is placed in 120~130 DEG C of vacuum tube furnaces, then logical argon gas excludes air, in argon gas
Under atmosphere, 10~15min of heat-insulation preheating after the completion of waiting to preheat, is evacuated to 15~20Pa, then by 8 DEG C/min rate program liters
To 1200~1300 DEG C, insulation melts 10~15min to temperature；After the completion for the treatment of insulation melting, then logical argon pressurization to 1.8~
2.0MPa, by mixing and ball milling powder atomization powder after melting, controls draft-tube diameter for 8~10mm, and atomization temperature is 1250~
1400 DEG C, powder by atomization simultaneously crosses 300 mesh sieves, collects to obtain iron(-)base powder；By step（1）Standby preheating stainless-steel sheet is put
In plasma spray apparatus, the iron(-)base powder of above-mentioned preparation is sprayed into preheating stainless-steel sheet surface, control spraying
Ar pressure is 0.5~0.6MPa, and 0.2~0.3MPa of hydrogen gas pressure, rotating disk powder feed rate is 1r/min, and carrier gas air pressure is 0.3
~0.4MPa, carrier gas flux is 6~8L/min, and spray gun translational speed is 150~180mm/s, and it is 15~25 μ to control coating thickness
M, it is to be sprayed after the completion of, carry out jet with 0.3~0.5MPa compressed airs and be cooled to room temperature, be prepared into Fe-based amorphous basal plate；
As negative electrode, graphite rod is anode to Fe-based amorphous basal plate with above-mentioned preparation, respectively by negative electrode and anode pickling in 300g/L ammonia
In base sulfonic acid nickel plating solution, the 5A/dm produced by dc source2Current density coating film treatment, control electroplating temperature for 40~
45 DEG C, after 8~10min of plating, the sheet material that nickel plating is completed takes out and is rinsed with clear water and dried naturally, is prepared into nickel plating amorphous
Coating；The nickel plating amorphous coating of above-mentioned preparation is placed under laser coating device, setting laser power is 1.8~2.5kW, hot spot
A diameter of 3mm, sweep speed is 5mm/s, connects the rate of taking for 50%, is passed through argon gas and is protected coaxial, it is to be coated after the completion of stand
45~60min of cooling, you can be prepared into a kind of double-layer wear-resistant corrosion resistant iron base amorphous composite coating.
Example 1
304L stainless-steel sheets are chosen, successively with 4#, anhydrous second after the completion of waiting to polish, is used in its surface of the sand papering of 8#, 12#
After alcohol washs 3 times, stand dry at room temperature, the pre-heat treatment 25min at being subsequently placed at 120 DEG C is prepared into preheating stainless
Steel steel plate, it is standby；It is 55% molybdenum-iron powder, 2 parts of ferro-boron powder of boron mass content 10% to weigh 45 parts of iron powders, 5 parts of molybdenum mass contents respectively
End, 15 parts of silica and 3 parts of manganese dioxide are placed in ball grinder, the ball milling 3h under 350r/min, the mesh sieve of subsequent mistake 300, are received
Collection mixing and ball milling powder, mixing and ball milling powder is placed in graphite crucible, then graphite crucible is placed in into 120 DEG C of vacuum tube furnaces
In, then logical argon gas excludes air, and under an argon atmosphere, heat-insulation preheating 10min after the completion of waiting to preheat, is evacuated to 15Pa, then
1200 DEG C, insulation melting 10min are warming up to by 8 DEG C/min rate programs；After the completion for the treatment of that insulation is melted, then logical argon pressurization is extremely
1.8MPa, by mixing and ball milling powder atomization powder after melting, controls draft-tube diameter for 8mm, and atomization temperature is 1250 DEG C, atomization
Powder processed simultaneously crosses 300 mesh sieves, collects to obtain iron(-)base powder；Preheating stainless-steel sheet is placed in plasma spray apparatus, will be upper
The iron(-)base powder for stating preparation is sprayed into preheating stainless-steel sheet surface, and it is 0.5MPa, hydrogen gas to control spraying ar pressure
Pressure 0.2MPa, rotating disk powder feed rate is 1r/min, and carrier gas air pressure is 0.3MPa, and carrier gas flux is 6L/min, spray gun translational speed
Be 150mm/s, control coating thickness for 15 μm, it is to be sprayed after the completion of, carry out jet with 0.3MPa compressed airs and be cooled to room temperature,
It is prepared into Fe-based amorphous basal plate；As negative electrode, graphite rod is anode to Fe-based amorphous basal plate with above-mentioned preparation, respectively by negative electrode
With anode pickling in 300g/L sulfamic acid nickel plating solutions, the 5A/dm produced by dc source2At current density plated film
Reason, controls electroplating temperature for 40 DEG C, and after plating 8min, the sheet material that nickel plating is completed takes out and rinsed with clear water and dried naturally,
It is prepared into nickel plating amorphous coating；The nickel plating amorphous coating of above-mentioned preparation is placed under laser coating device, setting laser power is
1.8kW, spot diameter is 3mm, and sweep speed is 5mm/s, and it is 50% to connect the rate of taking, and is protected coaxially argon gas is passed through, to be coated
After the completion of stand cooling 45min, you can be prepared into a kind of double-layer wear-resistant corrosion resistant iron base amorphous composite coating.
Example 2
304L stainless-steel sheets are chosen, successively with 4#, anhydrous second after the completion of waiting to polish, is used in its surface of the sand papering of 8#, 12#
After alcohol washs 4 times, stand dry at room temperature, the pre-heat treatment 27min at being subsequently placed at 122 DEG C is prepared into preheating stainless
Steel steel plate, it is standby；It is 55% molybdenum-iron powder, 2 parts of ferro-boron powder of boron mass content 10% to weigh 47 parts of iron powders, 6 parts of molybdenum mass contents respectively
End, 17 parts of silica and 4 parts of manganese dioxide are placed in ball grinder, the ball milling 4h under 375r/min, the mesh sieve of subsequent mistake 300, are received
Collection mixing and ball milling powder, mixing and ball milling powder is placed in graphite crucible, then graphite crucible is placed in into 125 DEG C of vacuum tube furnaces
In, then logical argon gas excludes air, and under an argon atmosphere, heat-insulation preheating 12min after the completion of waiting to preheat, is evacuated to 17Pa, then
1250 DEG C, insulation melting 12min are warming up to by 8 DEG C/min rate programs；After the completion for the treatment of that insulation is melted, then logical argon pressurization is extremely
1.9MPa, by mixing and ball milling powder atomization powder after melting, controls draft-tube diameter for 9mm, and atomization temperature is 1275 DEG C, atomization
Powder processed simultaneously crosses 300 mesh sieves, collects to obtain iron(-)base powder；Preheating stainless-steel sheet is placed in plasma spray apparatus, will be upper
The iron(-)base powder for stating preparation is sprayed into preheating stainless-steel sheet surface, and it is 0.6MPa, hydrogen gas to control spraying ar pressure
Pressure 0.3MPa, rotating disk powder feed rate is 1r/min, and carrier gas air pressure is 0.4MPa, and carrier gas flux is 7L/min, spray gun translational speed
Be 165mm/s, control coating thickness for 20 μm, it is to be sprayed after the completion of, carry out jet with 0.4MPa compressed airs and be cooled to room temperature,
It is prepared into Fe-based amorphous basal plate；As negative electrode, graphite rod is anode to Fe-based amorphous basal plate with above-mentioned preparation, respectively by negative electrode
With anode pickling in 300g/L sulfamic acid nickel plating solutions, the 5A/dm produced by dc source2At current density plated film
Reason, controls electroplating temperature for 42 DEG C, and after plating 9min, the sheet material that nickel plating is completed takes out and rinsed with clear water and dried naturally,
It is prepared into nickel plating amorphous coating；The nickel plating amorphous coating of above-mentioned preparation is placed under laser coating device, setting laser power is
1.9kW, spot diameter is 3mm, and sweep speed is 5mm/s, and it is 50% to connect the rate of taking, and is protected coaxially argon gas is passed through, to be coated
After the completion of stand cooling 47min, you can be prepared into a kind of double-layer wear-resistant corrosion resistant iron base amorphous composite coating.
Example 3
304L stainless-steel sheets are chosen, successively with 4#, anhydrous second after the completion of waiting to polish, is used in its surface of the sand papering of 8#, 12#
After alcohol washs 5 times, stand dry at room temperature, the pre-heat treatment 30min at being subsequently placed at 125 DEG C is prepared into preheating stainless
Steel steel plate, it is standby；It is 55% molybdenum-iron powder, 3 parts of ferro-boron powder of boron mass content 10% to weigh 60 parts of iron powders, 8 parts of molybdenum mass contents respectively
End, 20 parts of silica and 5 parts of manganese dioxide are placed in ball grinder, the ball milling 5h under 400r/min, the mesh sieve of subsequent mistake 300, are received
Collection mixing and ball milling powder, mixing and ball milling powder is placed in graphite crucible, then graphite crucible is placed in into 130 DEG C of vacuum tube furnaces
In, then logical argon gas excludes air, and under an argon atmosphere, heat-insulation preheating 15min after the completion of waiting to preheat, is evacuated to 20Pa, then
1300 DEG C, insulation melting 15min are warming up to by 8 DEG C/min rate programs；After the completion for the treatment of that insulation is melted, then logical argon pressurization is extremely
2.0MPa, by mixing and ball milling powder atomization powder after melting, controls draft-tube diameter for 10mm, and atomization temperature is 1400 DEG C, mist
Change powder processed and cross 300 mesh sieves, collect to obtain iron(-)base powder；Preheating stainless-steel sheet is placed in plasma spray apparatus, will
The iron(-)base powder of above-mentioned preparation is sprayed into preheating stainless-steel sheet surface, and it is 0.6MPa, hydrogen to control spraying ar pressure
Air pressure 0.3MPa, rotating disk powder feed rate is 1r/min, and carrier gas air pressure is 0.4MPa, and carrier gas flux is 8L/min, spray gun movement speed
It is 180mm/s to spend, and controls coating thickness for 25 μm, it is to be sprayed after the completion of, carry out jet with 0.5MPa compressed airs and be cooled to room
Temperature, is prepared into Fe-based amorphous basal plate；As negative electrode, graphite rod is anode to Fe-based amorphous basal plate with above-mentioned preparation, respectively will
Negative electrode and anode pickling in 300g/L sulfamic acid nickel plating solutions, the 5A/dm produced by dc source2Current density plated film
Treatment, controls electroplating temperature for 45 DEG C, and after plating 10min, the sheet material that nickel plating is completed takes out and rinsed with clear water and dried in the air naturally
It is dry, it is prepared into nickel plating amorphous coating；The nickel plating amorphous coating of above-mentioned preparation is placed under laser coating device, laser power is set
It is 2.5kW, spot diameter is 3mm, and sweep speed is 5mm/s, it is 50% to connect the rate of taking, and is protected coaxially argon gas is passed through, to be coated
Cooling 60min is stood after the completion of covering, you can be prepared into a kind of double-layer wear-resistant corrosion resistant iron base amorphous composite coating.
Claims (1)
1. a kind of preparation method of double-layer high-strength corrosion resistant iron base amorphous composite coating, it is characterised in that specific preparation process is：
（1）304L stainless-steel sheets are chosen, successively with 4#, its surface of the sand papering of 8#, 12#, after the completion of waiting to polish, with anhydrous
After ethanol washs 3~5 times, stand dry at room temperature, 25~30min of the pre-heat treatment at being subsequently placed at 120~125 DEG C,
Preheating stainless-steel sheet is prepared into, it is standby；
（2）It is 55% molybdenum-iron powder, 2~3 parts of boron of boron mass content 10% to weigh 45~60 parts of iron powders, 5~8 parts of molybdenum mass contents respectively
Iron powder, 15~20 parts of silica and 3~5 parts of manganese dioxide are placed in ball grinder, under 350~400r/min ball milling 3~
5h, the mesh sieve of subsequent mistake 300 collects mixing and ball milling powder, mixing and ball milling powder is placed in graphite crucible, then graphite crucible is put
In 120~130 DEG C of vacuum tube furnaces, then logical argon gas excludes air, and under an argon atmosphere, 10~15min of heat-insulation preheating is treated
After the completion of preheating, 15~20Pa is evacuated to, then 1200~1300 DEG C, insulation melting 10 are warming up to by 8 DEG C/min rate programs
~15min；
（3）After the completion for the treatment of that insulation is melted, then logical argon pressurization is to 1.8~2.0MPa, by mixing and ball milling powder atomization system after melting
Powder, controls draft-tube diameter for 8~10mm, and atomization temperature is 1250~1400 DEG C, and powder by atomization simultaneously crosses 300 mesh sieves, collects
Iron(-)base powder；
（4）By step（1）Standby preheating stainless-steel sheet is placed in plasma spray apparatus, by the ferrous alloy of above-mentioned preparation
Powder spray controls spraying ar pressure for 0.5~0.6MPa to stainless-steel sheet surface is preheated, and hydrogen gas pressure 0.2~
0.3MPa, rotating disk powder feed rate is 1r/min, and carrier gas air pressure is 0.3~0.4MPa, and carrier gas flux is 6~8L/min, and spray gun is moved
Dynamic speed is 150~180mm/s, control coating thickness for 15~25 μm, it is to be sprayed after the completion of, compress sky with 0.3~0.5MPa
Gas carries out jet and is cooled to room temperature, is prepared into Fe-based amorphous basal plate；
（5）As negative electrode, graphite rod is anode to Fe-based amorphous basal plate with above-mentioned preparation, respectively by negative electrode and anode pickling in
In 300g/L sulfamic acid nickel plating solutions, the 5A/dm produced by dc source2Current density coating film treatment, control plating temperature
It is 40~45 DEG C to spend, and after 8~10min of plating, the sheet material that nickel plating is completed takes out and rinsed with clear water and dried naturally, is prepared into
Nickel plating amorphous coating；
（6）The nickel plating amorphous coating of above-mentioned preparation is placed under laser coating device, setting laser power is 1.8~2.5kW, light
Spot diameter is 3mm, and sweep speed is 5mm/s, connects the rate of taking for 50%, is passed through argon gas and is protected coaxial, it is to be coated after the completion of it is quiet
Put 45~60min of cooling, you can be prepared into a kind of double-layer high-strength corrosion resistant iron base amorphous composite coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211678.XA CN106835132A (en) | 2016-12-25 | 2016-12-25 | A kind of preparation method of double-layer high-strength corrosion resistant iron base amorphous composite coating |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531904A (en) * | 2018-03-30 | 2018-09-14 | 昆明理工大学 | A kind of wear-resistant coating and preparation method thereof |
| CN108754492A (en) * | 2018-06-25 | 2018-11-06 | 阜南县奋进机械制造有限公司 | A kind of PDC steel body bits surface enhanced method |
| CN110129715A (en) * | 2019-05-14 | 2019-08-16 | 昆明理工大学 | A kind of in-situ nano metal-ceramic composite coatings and preparation method thereof |
| CN110257821A (en) * | 2019-01-24 | 2019-09-20 | 天津北基新激光科技有限公司 | The reproducing method and laser cladding equipment of hydraulic support column |
| CN114836708A (en) * | 2022-05-31 | 2022-08-02 | 中国科学院金属研究所 | Impact-resistant corrosion-resistant amorphous alloy coating with double-layer structure and preparation method thereof |
| CN116770301A (en) * | 2023-08-23 | 2023-09-19 | 南京工业大学 | Zirconium-based amorphous alloy-aluminum alloy composite material coating and preparation method thereof |
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2016
- 2016-12-25 CN CN201611211678.XA patent/CN106835132A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531904A (en) * | 2018-03-30 | 2018-09-14 | 昆明理工大学 | A kind of wear-resistant coating and preparation method thereof |
| CN108754492A (en) * | 2018-06-25 | 2018-11-06 | 阜南县奋进机械制造有限公司 | A kind of PDC steel body bits surface enhanced method |
| CN110257821A (en) * | 2019-01-24 | 2019-09-20 | 天津北基新激光科技有限公司 | The reproducing method and laser cladding equipment of hydraulic support column |
| CN110129715A (en) * | 2019-05-14 | 2019-08-16 | 昆明理工大学 | A kind of in-situ nano metal-ceramic composite coatings and preparation method thereof |
| CN114836708A (en) * | 2022-05-31 | 2022-08-02 | 中国科学院金属研究所 | Impact-resistant corrosion-resistant amorphous alloy coating with double-layer structure and preparation method thereof |
| CN114836708B (en) * | 2022-05-31 | 2023-11-17 | 中国科学院金属研究所 | Anti-impact corrosion-resistant amorphous alloy coating with double-layer structure and preparation method thereof |
| CN116770301A (en) * | 2023-08-23 | 2023-09-19 | 南京工业大学 | Zirconium-based amorphous alloy-aluminum alloy composite material coating and preparation method thereof |
| CN116770301B (en) * | 2023-08-23 | 2023-10-27 | 南京工业大学 | Zirconium-based amorphous alloy-aluminum alloy composite material coating and preparation method thereof |
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