CN110846608B - Double-layer surface composite reinforced iron-based material and preparation method thereof - Google Patents

Double-layer surface composite reinforced iron-based material and preparation method thereof Download PDF

Info

Publication number
CN110846608B
CN110846608B CN201911214900.5A CN201911214900A CN110846608B CN 110846608 B CN110846608 B CN 110846608B CN 201911214900 A CN201911214900 A CN 201911214900A CN 110846608 B CN110846608 B CN 110846608B
Authority
CN
China
Prior art keywords
percent
nano
preparation
pressing
aluminum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911214900.5A
Other languages
Chinese (zh)
Other versions
CN110846608A (en
Inventor
陈万鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seaparks Tianjin Machinery Electronics Co ltd
Original Assignee
Seaparks Tianjin Machinery Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seaparks Tianjin Machinery Electronics Co ltd filed Critical Seaparks Tianjin Machinery Electronics Co ltd
Priority to CN201911214900.5A priority Critical patent/CN110846608B/en
Publication of CN110846608A publication Critical patent/CN110846608A/en
Application granted granted Critical
Publication of CN110846608B publication Critical patent/CN110846608B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/131—Wire arc spraying
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/10—Alloys based on aluminium with zinc as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • 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
    • C23C4/067—Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • B22F2003/208—Warm or hot extruding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The invention relates to a double-layer surface composite reinforced iron-based material and a preparation method thereof. The double-layer surface composite reinforced iron-based material comprises a matrix, a first surface reinforcing layer and a second surface reinforcing layer, wherein the first surface reinforcing layer and the second surface reinforcing layer are sequentially coated on the outer side of the matrix, and the first surface reinforcing layer comprises the following components in percentage by weight: 6.2 to 11.8 percent of chromium Cr, 0.02 to 0.09 percent of zirconium Zr, 0.5 to 1.5 percent of boron B, 21 to 35 percent of nickel Ni, 0.1 to 0.8 percent of neodymium Nd, and the balance of iron Fe; the second surface enhancement layer comprises the following components in percentage by weight: 3.8 to 8.9 percent of zinc and Al of nano alumina2O30.08 to 0.15 percent of nano-zirconium nitride ZrN, 0.02 to 0.07 percent of nano-zirconium nitride ZrN, 0.88 to 1.65 percent of iron Fe, 0.05 to 0.09 percent of nano-aluminum nitride AlN, 5.2 to 12.8 percent of nickel Ni and the balance of aluminum Al. Compared with the prior art, the material provided by the embodiment of the invention has excellent wear resistance, corrosion resistance and hardness.

Description

Double-layer surface composite reinforced iron-based material and preparation method thereof
Technical Field
The invention belongs to the field of composite materials, and relates to a double-layer surface composite reinforced iron-based material and a preparation method thereof.
Background
The roller is a device for conveying and transporting goods, and is widely applied to the fields of stations, airports, post office express delivery, industrial production and the like. In practical applications, the roller is required to have high transmission efficiency and long service life. Particularly for use in industrial production, the load-bearing goods to be transported often have the characteristics of heavy weight, high temperature or corrosiveness. Therefore, the mechanical and physical properties and corrosion resistance of the surface of the drum are key factors affecting the service life thereof. In practical application, stainless steel is generally adopted as a shell material of the roller, the stainless steel has good corrosion resistance, but the surface hardness of the stainless steel is low, the stainless steel is easy to scratch and damage during workpiece transportation, the damaged stainless steel surface has a high pitting tendency, and the corrosion resistance is greatly reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a double-layer surface composite reinforced iron-based material and a preparation method thereof.
According to one aspect of the invention, a double-layer surface composite reinforced iron-based material is provided, which comprises a matrix, a first surface reinforcing layer and a second surface reinforcing layer, wherein the first surface reinforcing layer and the second surface reinforcing layer are sequentially coated on the outer side of the matrix; wherein the matrix is an iron-based alloy; the first surface enhancement layer comprises the following components in percentage by weight: 6.2 to 11.8 percent of chromium Cr, 0.02 to 0.09 percent of zirconium Zr, 0.5 to 1.5 percent of boron B, 21 to 35 percent of nickel Ni, 0.1 to 0.8 percent of neodymium Nd, and the balance of iron Fe; the second surface enhancement layer comprises the following components in percentage by weight: 3.8 to 8.9 percent of zinc and Al of nano alumina2O30.08 to 0.15 percent of nano-zirconium nitride ZrN, 0.02 to 0.07 percent of nano-zirconium nitride ZrN, 0.88 to 1.65 percent of iron Fe, 0.05 to 0.09 percent of nano-aluminum nitride AlN, 5.2 to 12.8 percent of nickel Ni and the balance of aluminum Al.
According to an exemplary embodiment of the invention, the thickness of the first surface enhancing layer is 12 μm to 28 μm and the thickness of the second surface enhancing layer is 15 μm to 25 μm.
According to an exemplary embodiment of the present invention, the nano alumina Al2O3The average grain diameter of the nano zirconium nitride ZrN is 32nm, the average grain diameter of the nano aluminum nitride AlN is 45nm, and the average grain diameter of the nano aluminum nitride AlN is 25 nm.
According to another aspect of the present invention, there is provided a method for preparing a two-layer surface-recombination reinforced iron-based material, the method comprising:
first, first enhanced preform preparation
Preparing the following Fe-Ni-based alloy powder in percentage by weight: 6.2 to 11.8 percent of chromium Cr, 0.02 to 0.09 percent of zirconium Zr, 0.5 to 1.5 percent of boron B, 21 to 35 percent of nickel Ni, 0.1 to 0.8 percent of neodymium Nd, and the balance of iron Fe, wherein the particle size of the Fe-Ni-based alloy powder is 10 to 25 mu m;
prefabricating and forming: uniformly mixing the Fe-Ni-based alloy powder, and pressing and forming into a wire blank with the diameter of phi 3 mm; wherein, the prefabrication and molding are divided into two stages, in the first stage, the pressing temperature is 380-425 ℃, the pressing heat preservation time is 135-185 min, and the pressing pressure is 550-620 MPa; in the second stage, the pressing temperature is 265-300 ℃, the pressing heat preservation time is 80-115 min, and the pressing pressure is 335-420 MPa;
preparing a first reinforced prefabricated body: hot extruding the preformed wire blank to prepare a first reinforced preformed body wire rod with phi 0.07 mm-phi 0.25 mm;
second, second enhanced preparation
Preparing the following aluminum-based powder according to the weight percentage: 3.8 to 8.9 percent of zinc and Al of nano alumina2O30.08 to 0.15 percent of nano zirconium nitride ZrN, 0.02 to 0.07 percent of nano zirconium nitride ZrN, 0.88 to 1.65 percent of Fe, 0.05 to 0.09 percent of nano aluminum nitride AlN, 5.2 to 12.8 percent of nickel Ni and the balance of aluminum Al;
performing activation: fully and uniformly mixing the aluminum-based powder, then placing the mixture into deionized water, uniformly stirring the mixture at a constant temperature of 55 ℃, drying the mixture at 120 ℃ and at a stirring speed of 500r/min to obtain activated aluminum-based powder;
thirdly, pretreatment of the base material
Carrying out absolute ethyl alcohol ultrasonic cleaning on a base material, and carrying out sand blasting coarsening treatment on the base material by using white corundum sand of 10 meshes-20 meshes, wherein the sand blasting air pressure is 0.8MPa, the sand blasting time is 25min, and the sand blasting distance is 250 mm; cleaning with acetone and drying;
fourth, first surface enhancement layer preparation
Preparing a first surface enhancement layer on the surface of a matrix by adopting a supersonic electric arc spraying method for the first enhancement prefabricated body wire rod;
fifth, second surface enhancement layer preparation
And preparing a second surface enhancement layer on the first surface enhancement layer by adopting a plasma arc cladding method for the activated aluminum-based powder.
According to an exemplary embodiment of the present invention, the first reinforced preform is prepared at an extrusion temperature of 270 to 290 ℃, an extrusion reduction ratio of 45 to 58% in each pass, and an extrusion reduction ratio of 35% in the last pass.
According to the exemplary embodiment of the invention, the arc voltage is 35V-45V, the arc current is 255A-295A, the air pressure is 0.6MPa-1.2MPa, the wire feeding voltage is 15V-22V, and the spraying distance is 210mm-280mm when the supersonic arc spraying is carried out.
According to the exemplary embodiment of the invention, when the plasma arc cladding is carried out, the arc height is 10mm, the gas flow of the plasma arc is 2.8L/min-5.2L/min, the protective gas flow is 12L/min, the powder feeding rate is 3.8r/min-5.5r/min, the cladding current is 80A-115A, and the cladding speed is 195mm/s-288 mm/s.
Compared with the prior art, according to the preparation method of the double-layer surface composite reinforced iron-based material, the double-layer surface composite reinforced iron-based material is prepared by adopting a supersonic electric arc spraying method and a plasma electric arc cladding method. According to the double-layer surface composite reinforced iron-based material, the surface hardness is obviously improved, and the average hardness value is about 11.04 times that of a matrix material; the surface wear resistance is obviously improved, and under the same test conditions, the average mass loss of the material is about 20.1 percent of that of the base material; the corrosion resistance is obviously improved, and after 300h of salt spray corrosion, the average mass loss per unit area is about 25.63% of that of the base material.
Detailed Description
In order to make the technical solution and advantages of the present invention more apparent, the present invention is further described in detail by the following specific examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1:
first, first enhanced preform preparation
Preparing the following Fe-Ni-based alloy powder in percentage by weight: 6.2% of chromium Cr, 0.05% of zirconium Zr, 0.8% of boron B, 21% of nickel Ni, 0.1% of neodymium Nd, and the balance of iron Fe; the particle size of the Fe-Ni based alloy powder is 25 mu m;
prefabricating and forming: uniformly mixing the powder, and pressing and forming into a wire blank with the diameter of phi 3 mm; the prefabrication molding is divided into two stages, wherein in the first stage, the pressing temperature is 380 ℃, the pressing heat preservation time is 135min, and the pressing pressure is 550 MPa; in the second stage, the pressing temperature is 265 ℃, the pressing heat preservation time is 115min, and the pressing pressure is 335 MPa;
preparing a first reinforced prefabricated body: and (3) hot extruding the preformed wire blank to obtain a first reinforcing preform wire rod with the diameter of 0.25 mm. Wherein, in the preparation process of the first reinforced prefabricated part, the extrusion temperature is 270-290 ℃, the extrusion reduction rate of each pass is 45-58%, and the extrusion reduction rate of the last pass is 35%;
second, second enhanced preparation
Preparing the following aluminum-based powder according to the weight percentage: zn 3.8%, nano alumina Al2O30.12 percent of nano zirconium nitride ZrN, 0.03 percent of nano zirconium nitride ZrN, 1.28 percent of iron Fe, 0.08 percent of nano aluminum nitride AlN, 6.2 percent of nickel Ni and the balance of aluminum Al; wherein, the nano Al2O3The average grain diameter of the nano-zirconium nitride ZrN is 32nm, the average grain diameter of the nano-zirconium nitride ZrN is 45nm, and the average grain diameters of the nano-aluminum nitride AlN are respectively 25 nm;
performing activation: fully and uniformly mixing the powder, then placing the powder into deionized water, uniformly stirring the mixture at a constant temperature of 55 ℃, drying the mixture at 120 ℃ and at a stirring speed of 500r/min to obtain activated aluminum-based powder;
thirdly, pretreatment of the base material
Adopting 304 stainless steel as a base material, ultrasonically cleaning by absolute ethyl alcohol, and carrying out sand blasting and coarsening treatment by using 10-20-mesh white corundum sand, wherein the sand blasting air pressure is 0.8MPa, the sand blasting time is 5min, and the sand blasting distance is 250 mm; cleaning with acetone and drying;
fourth, first surface enhancement layer preparation
Supersonic arc spraying is adopted, the supersonic arc voltage is 35V, the arc current is 266A, the air pressure is 0.6MPa, the wire feeding voltage is 15V, and the spraying distance is 210 mm; preparing a first surface enhancement layer with the thickness of 12 mu m on the surface of a substrate;
fifth, second surface enhancement layer preparation
Adopting plasma arc to clad, wherein the height of the plasma arc is 10mm, the gas flow of the plasma arc is 2.8L/min, the gas flow of the protective gas is 12L/min, the powder feeding rate is 3.8r/min, the cladding current is 80A, and the cladding speed is 208 mm/s; a second surface enhancing layer having a thickness of 22 μm was prepared on the first surface enhancing layer.
Example 2:
first, first enhanced preform preparation
Preparing the following Fe-Ni-based alloy powder in percentage by weight: 7.7% of chromium Cr, 0.07% of zirconium Zr, 1.3% of boron B, 25% of nickel Ni, 0.6% of neodymium Nd, and the balance of iron Fe; the particle size of the Fe-Ni based alloy powder is 18 mu m;
prefabricating and forming: uniformly mixing the powder, and pressing and forming into a wire blank with the diameter of phi 3 mm; wherein the prefabrication and molding are divided into two stages, in the first stage, the pressing temperature is 393 ℃, the pressing heat preservation time is 143min, and the pressing pressure is 579 MPa; in the second stage, the pressing temperature is 275 ℃, the pressing heat preservation time is 108min, and the pressing pressure is 358 MPa;
preparing a first reinforced prefabricated body: the preformed wire blank is hot extruded to form a first reinforcing preform wire of phi 0.18 mm. Wherein, in the preparation process of the first reinforced prefabricated part, the extrusion temperature is 270-290 ℃, the extrusion reduction rate of each pass is 45-58%, and the extrusion reduction rate of the last pass is 35%;
second, second enhanced preparation
Preparing the following aluminum-based powder according to the weight percentage: zn 6.6%, nano alumina Al2O30.09 percent of nano zirconium nitride ZrN, 0.05 percent of nano zirconium nitride ZrN, 1.65 percent of iron Fe, 0.05 percent of nano aluminum nitride AlN, 8.3 percent of nickel Ni and the balance of aluminum Al; wherein, the nano Al2O3The average grain diameter of the nano-zirconium nitride ZrN is 32nm, the average grain diameter of the nano-zirconium nitride ZrN is 45nm, and the average grain diameters of the nano-aluminum nitride AlN are respectively 25 nm;
performing activation: fully and uniformly mixing the powder, then placing the powder into deionized water, uniformly stirring the mixture at a constant temperature of 55 ℃, drying the mixture at 120 ℃ and at a stirring speed of 500r/min to obtain activated aluminum-based powder;
thirdly, pretreatment of the base material
Adopting 304 stainless steel as a base material, ultrasonically cleaning by absolute ethyl alcohol, and carrying out sand blasting and coarsening treatment by using 10-20-mesh white corundum sand, wherein the sand blasting air pressure is 0.8MPa, the sand blasting time is 5min, and the sand blasting distance is 250 mm; cleaning with acetone and drying;
fourth, first surface enhancement layer preparation
Supersonic arc spraying is adopted, the supersonic arc voltage is 40V, the arc current is 282A, the air pressure is 0.9MPa, the wire feeding voltage is 19V, and the spraying distance is 250 mm; preparing a first surface enhancement layer with the thickness of 15 mu m on the surface of the substrate;
fifth, second surface enhancement layer preparation
Adopting plasma arc to clad, wherein the height of the plasma arc is 10mm, the gas flow of the plasma arc is 3.3L/min, the gas flow of the protective gas is 12L/min, the powder feeding rate is 4.2r/min, the cladding current is 102A, and the cladding speed is 195 mm/s; a second surface enhancing layer having a thickness of 15 μm was prepared on the first surface enhancing layer.
Example 3:
first, first enhanced preform preparation
Preparing the following Fe-Ni-based alloy powder in percentage by weight: 8.5% of chromium Cr, 0.02% of zirconium Zr, 0.5% of boron B, 28% of nickel Ni, 0.3% of neodymium Nd, and the balance of iron Fe; the particle size of the Fe-Ni-based alloy powder is 12 mu m;
prefabricating and forming: uniformly mixing the powder, and pressing and forming into a wire blank with the diameter of phi 3 mm; the prefabrication and molding process comprises two stages, wherein in the first stage, the pressing temperature is 409 ℃, the pressing heat preservation time is 169min, and the pressing pressure is 588 MPa; in the second stage, the pressing temperature is 289 ℃, the pressing heat preservation time is 95min, and the pressing pressure is 392 MPa;
preparing a first reinforced prefabricated body: and (3) hot extruding the preformed wire blank to obtain a first reinforcing preform wire rod with the diameter of 0.07 mm. Wherein, in the preparation process of the first reinforced prefabricated part, the extrusion temperature is 270-290 ℃, the extrusion reduction rate of each pass is 45-58%, and the extrusion reduction rate of the last pass is 35%;
second, second enhanced preparation
Preparing the following aluminum-based powder according to the weight percentage: zinc Zn 4.5%, nano alumina Al2O30.11 percent, nano zirconium nitride ZrN 0.02 percent and Fe0.88 percent of nano aluminum nitride AlN, 0.09 percent of nano aluminum nitride AlN, 5.2 percent of nickel Ni and the balance of aluminum Al; wherein, the nano Al2O3The average grain diameter of the nano-zirconium nitride ZrN is 32nm, the average grain diameter of the nano-zirconium nitride ZrN is 45nm, and the average grain diameters of the nano-aluminum nitride AlN are respectively 25 nm;
performing activation: fully and uniformly mixing the powder, then placing the powder into deionized water, uniformly stirring the mixture at a constant temperature of 55 ℃, drying the mixture at 120 ℃ and at a stirring speed of 500r/min to obtain activated aluminum-based powder;
thirdly, pretreatment of the base material
Adopting 304 stainless steel as a base material, ultrasonically cleaning by absolute ethyl alcohol, and carrying out sand blasting and coarsening treatment by using 10-20-mesh white corundum sand, wherein the sand blasting air pressure is 0.8MPa, the sand blasting time is 5min, and the sand blasting distance is 250 mm; cleaning with acetone and drying;
fourth, first surface enhancement layer preparation
Supersonic arc spraying is adopted, the supersonic arc voltage is 45V, the arc current is 255A, the air pressure is 0.7MPa, the wire feeding voltage is 19V, and the spraying distance is 265 mm; preparing a first surface enhancement layer with the thickness of 22 mu m on the surface of the substrate;
fifth, second surface enhancement layer preparation
Adopting plasma arc to clad, wherein the height of the plasma arc is 10mm, the gas flow of the plasma arc is 4.1L/min, the gas flow of the protective gas is 12L/min, the powder feeding rate is 5.1r/min, the cladding current is 98A, and the cladding speed is 256 mm/s; a second surface enhancing layer having a thickness of 25 μm was prepared on the first surface enhancing layer.
Example 4:
first, first enhanced preform preparation
Preparing the following Fe-Ni-based alloy powder in percentage by weight: 11.8% of chromium Cr, 0.09% of zirconium Zr, 1.5% of boron B, 35% of nickel Ni, 0.8% of neodymium Nd and the balance of iron Fe; the particle size of the Fe-Ni-based alloy powder is 10 mu m;
prefabricating and forming: uniformly mixing the powder, and pressing and forming into a wire blank with the diameter of phi 3 mm; the prefabrication molding is divided into two stages, wherein in the first stage, the pressing temperature is 425 ℃, the pressing heat preservation time is 185min, and the pressing pressure is 620 MPa; in the second stage, the pressing temperature is 300 ℃, the pressing heat preservation time is 80min, and the pressing pressure is 420 MPa;
preparing a first reinforced prefabricated body: and (3) hot extruding the preformed wire blank to obtain a first reinforcing preform wire rod with the diameter of 0.12 mm. Wherein, in the preparation process of the first reinforced prefabricated part, the extrusion temperature is 270-290 ℃, the extrusion reduction rate of each pass is 45-58%, and the extrusion reduction rate of the last pass is 35%;
second, second enhanced preparation
Preparing the following aluminum-based powder according to the weight percentage: zn 8.9%, nano alumina Al2O30.15 percent of nano zirconium nitride ZrN, 0.07 percent of nano zirconium nitride ZrN, 0.99 percent of iron Fe, 0.09 percent of nano aluminum nitride AlN, 12.8 percent of nickel Ni and the balance of aluminum Al; wherein, the nano Al2O3The average grain diameter of the nano-zirconium nitride ZrN is 32nm, the average grain diameter of the nano-zirconium nitride ZrN is 45nm, and the average grain diameters of the nano-aluminum nitride AlN are respectively 25 nm;
performing activation: fully and uniformly mixing the powder, then placing the powder into deionized water, uniformly stirring the mixture at a constant temperature of 55 ℃, drying the mixture at 120 ℃ and at a stirring speed of 500r/min to obtain activated aluminum-based powder;
thirdly, pretreatment of the base material
Adopting 304 stainless steel as a base material, ultrasonically cleaning by absolute ethyl alcohol, and carrying out sand blasting and coarsening treatment by using 10-20-mesh white corundum sand, wherein the sand blasting air pressure is 0.8MPa, the sand blasting time is 5min, and the sand blasting distance is 250 mm; cleaning with acetone and drying;
fourth, first surface enhancement layer preparation
Supersonic arc spraying is adopted, the supersonic arc voltage is 35V, the arc current is 295A, the air pressure is 1.2MPa, the wire feeding voltage is 22V, and the spraying distance is 280 mm; preparing a first surface enhancement layer with the thickness of 28 mu m on the surface of the substrate;
fifth, second surface enhancement layer preparation
Adopting plasma arc to clad, wherein the height of the plasma arc is 10mm, the gas flow of the plasma arc is 5.2L/min, the gas flow of the protective gas is 12L/min, the powder feeding rate is 5.5r/min, the cladding current is 115A, and the cladding speed is 288 mm/s; a second surface enhancing layer having a thickness of 18 μm was prepared on the first surface enhancing layer.
Example 5:
based on the subject matter of the present application, the two-layer surface-clad reinforced iron-based material prepared in example 1, example 2, example 3 and example 4 was used to manufacture a drum by machining. The same specification drum was made using conventional 304 stainless steel as a comparative example.
The microhardness of the surfaces of the roller manufactured using the examples of the present application and the roller manufactured using the comparative material was measured at room temperature using an HX-1000 microhardness tester at a load size of 100g, and 15 points were randomly selected and averaged to obtain (see Table 1).
TABLE 1 average hardness values for comparative and example
Test specimen Average Hardness (HV)
Comparative example 171
Example 1 1829
Example 2 1858
Example 3 1928
Example 4 1933
As can be seen from table 1, the surface hardness of the drums prepared using the two-layer surface-composite-reinforced iron-based materials prepared in examples 1, 2, 3 and 4 was significantly improved compared to the comparative example, and the average hardness value was about 11.04 times that of the comparative example (304 stainless steel material).
The wear resistance of the surfaces of the rollers prepared from the materials of examples 1, 2, 3 and 4 and the surface of the roller of the comparative example was measured by using HT-1000 type friction wear tester, and Si was used as the material of the grinding ball3N4The load is 5.5N, the friction radius is 8mm, the rotating speed is 1520r/min, the test time is 220min, the mass difference before and after frictional wear is calculated, and the measurement result is shown in Table 2.
TABLE 2 Friction wear Mass loss values for comparative and example
Test specimen Mass g before test Mass g after test Mass loss mg
Comparative example 224.238 224.186 52
Example 1 224.432 224.422 10
Example 2 224.366 224.353 13
Example 3 224.483 224.474 9
Example 4 224.455 224.445 10
As can be seen from table 2, the surface wear resistance of the drums manufactured using the two-layer surface-composite-reinforced iron-based materials manufactured in examples 1 to 4 was significantly improved as compared to the comparative example, and the average mass loss under the same test conditions was about 20.1% of that of the comparative example (304 stainless steel material).
Reference to international standard ISO 9227: 2006(E) Artificial atmosphere Corrosion test-salt fog test method Corrosion Performance measurements were made on and compared to drums made from examples 1-4 and comparative example materials. The temperature in the test chamber is 35 +/-2 ℃, the salt spray medium is a sodium chloride solution with the concentration of 50g/L +/-5 g/L, and the spray pressure is 1.00 +/-0.01 kgf/cm2. The mass of each sample was measured before and after the test.
TABLE 3 values of mass loss after salt spray etching of comparative and example
Figure BDA0002299238300000081
As can be seen from table 3, the corrosion resistance of the drums manufactured using the two-layer surface-composited reinforced iron-based materials manufactured in examples 1 to 4 is significantly improved compared to the comparative example, and the average mass loss per unit area after 300h of salt spray corrosion is about 25.63% of that of the comparative example (304 stainless steel material).
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (4)

1. A preparation method of a double-layer surface composite reinforced iron-based material is characterized by comprising the following steps:
first, first enhanced preform preparation
Preparing the following Fe-Ni-based alloy powder in percentage by weight: 6.2 to 11.8 percent of chromium Cr, 0.02 to 0.09 percent of zirconium Zr, 0.5 to 1.5 percent of boron B, 21 to 35 percent of nickel Ni, 0.1 to 0.8 percent of neodymium Nd, and the balance of iron Fe, wherein the particle size of the Fe-Ni-based alloy powder is 10 to 25 mu m;
prefabricating and forming: uniformly mixing the Fe-Ni-based alloy powder, and pressing and forming into a wire blank with the diameter of phi 3 mm; wherein, the prefabrication and molding are divided into two stages, in the first stage, the pressing temperature is 380-425 ℃, the pressing heat preservation time is 135-185 min, and the pressing pressure is 550-620 MPa; in the second stage, the pressing temperature is 265-300 ℃, the pressing heat preservation time is 80-115 min, and the pressing pressure is 335-420 MPa;
preparing a first reinforced prefabricated body: hot extruding the preformed wire blank to prepare a first reinforced preformed body wire rod with phi 0.07 mm-phi 0.25 mm;
second, second enhanced preparation
Preparing the following aluminum-based powder according to the weight percentage: 3.8 to 8.9 percent of zinc and Al of nano alumina2O30.08 to 0.15 percent of nano zirconium nitride ZrN, 0.02 to 0.07 percent of nano zirconium nitride ZrN, 0.88 to 1.65 percent of Fe, 0.05 to 0.09 percent of nano aluminum nitride AlN, 5.2 to 12.8 percent of nickel Ni and the balance of aluminum Al;
performing activation: fully and uniformly mixing the aluminum-based powder, then placing the mixture into deionized water, uniformly stirring the mixture at a constant temperature of 55 ℃, drying the mixture at 120 ℃ and at a stirring speed of 500r/min to obtain activated aluminum-based powder;
thirdly, pretreatment of the base material
Carrying out absolute ethyl alcohol ultrasonic cleaning on a base material, and carrying out sand blasting coarsening treatment on the base material by using white corundum sand of 10 meshes-20 meshes, wherein the sand blasting air pressure is 0.8MPa, the sand blasting time is 25min, and the sand blasting distance is 250 mm; cleaning with acetone and drying;
fourth, first surface enhancement layer preparation
Preparing a first surface enhancement layer on the surface of a matrix by adopting a supersonic electric arc spraying method for the first enhancement prefabricated body wire rod;
fifth, second surface enhancement layer preparation
And preparing a second surface enhancement layer on the first surface enhancement layer by adopting a plasma arc cladding method for the activated aluminum-based powder.
2. The method according to claim 1, wherein the first reinforced preform is prepared at an extrusion temperature of 270 ℃ to 290 ℃, an extrusion reduction ratio of 45% to 58% in each pass, and an extrusion reduction ratio of 35% in the last pass.
3. The method of claim 1, wherein the supersonic arc spraying has an arc voltage of 35V-45V, an arc current of 255A-295A, an air pressure of 0.6MPa-1.2MPa, a wire feed voltage of 15V-22V, and a spraying distance of 210mm-280 mm.
4. The preparation method of claim 1, wherein during plasma arc cladding, the arc height is 10mm, the plasma arc gas flow is 2.8L/min-5.2L/min, the protective gas flow is 12L/min, the powder feeding rate is 3.8r/min-5.5r/min, the cladding current is 80A-115A, and the cladding speed is 195mm/s-288 mm/s.
CN201911214900.5A 2019-12-02 2019-12-02 Double-layer surface composite reinforced iron-based material and preparation method thereof Active CN110846608B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911214900.5A CN110846608B (en) 2019-12-02 2019-12-02 Double-layer surface composite reinforced iron-based material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911214900.5A CN110846608B (en) 2019-12-02 2019-12-02 Double-layer surface composite reinforced iron-based material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN110846608A CN110846608A (en) 2020-02-28
CN110846608B true CN110846608B (en) 2021-06-29

Family

ID=69607195

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911214900.5A Active CN110846608B (en) 2019-12-02 2019-12-02 Double-layer surface composite reinforced iron-based material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN110846608B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880850A (en) * 2009-05-06 2010-11-10 慈溪光华金属复合材料有限公司 Method for thermal spraying of composite bottom layer of aluminum pan of electromagnetic oven
CN107475658A (en) * 2017-07-11 2017-12-15 深圳仕上电子科技有限公司 The electric arc combined coat processing method of solar panel processing unit (plant)
CN107605612A (en) * 2017-10-20 2018-01-19 中原内配集团股份有限公司 A kind of cylinder jacket and engine
CN108754290A (en) * 2018-07-05 2018-11-06 梁小红 A kind of stainless steel-alumina ceramic composite material and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10041361B2 (en) * 2014-10-15 2018-08-07 General Electric Company Turbine blade coating composition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880850A (en) * 2009-05-06 2010-11-10 慈溪光华金属复合材料有限公司 Method for thermal spraying of composite bottom layer of aluminum pan of electromagnetic oven
CN107475658A (en) * 2017-07-11 2017-12-15 深圳仕上电子科技有限公司 The electric arc combined coat processing method of solar panel processing unit (plant)
CN107605612A (en) * 2017-10-20 2018-01-19 中原内配集团股份有限公司 A kind of cylinder jacket and engine
CN108754290A (en) * 2018-07-05 2018-11-06 梁小红 A kind of stainless steel-alumina ceramic composite material and preparation method thereof

Also Published As

Publication number Publication date
CN110846608A (en) 2020-02-28

Similar Documents

Publication Publication Date Title
US20170144270A1 (en) Method for producing a corrosion-inhibiting or adhesion-promoting coating
CN108531844B (en) Preparation method of rare earth oxide doped high-temperature oxidation resistant and wear-resistant coating for H13 steel surface protection
CN102994936A (en) Nano-composite powder core wire
CN103741090A (en) Spraying method of surface coatings of sink rolls and stabilizing rolls
CN110846608B (en) Double-layer surface composite reinforced iron-based material and preparation method thereof
CN112391624A (en) Preparation method and application of high-density cold-sprayed metal/metal-based sediment body
CN117026056A (en) Powder metallurgy material and application thereof
CN114481001B (en) Impact-resistant multilayer metal ceramic coating and preparation method thereof
CN106591761B (en) Method for preparing composite coating resisting molten metal erosion
CN104264099B (en) A kind of Fe-Gr-Si nano coating and preparation method thereof
CN1225568C (en) Technique for preparing metal-base ceramic composite coating by electric are spraying
CN113927495B (en) Preparation process of self-sharpening metal binding agent diamond abrasive layer
CN112522697B (en) Method for improving corrosion resistance of cold spraying coating
CN110218963B (en) Wear-resistant extrusion core rod and machining process
CN110791723A (en) Wear-resistant high-temperature hydrophobic Cr3C2-NiCr coating, preparation method thereof and workpiece
CN108950452A (en) One kind is aluminized silicon line sinking roller spray-on coating and preparation method thereof
CN211449917U (en) Strong anticorrosive nonrust steel pipe
US6598441B1 (en) Method for forming metal parts by cold deformation
CN114457302B (en) Surface modification treatment method for bimetallic strip saw blade
KR101981672B1 (en) Manufacturing method for corrosion-resistant hydraulic cylinder
CN112501605A (en) Preparation method of functional composite cold spray coating
CN101178094A (en) Method for preparing steel-copper composite sleeve by spraying cold-pressing mode
CN111188578A (en) Nickel-based alloy coating polished sucker rod with high-toughness clamping section and processing method thereof
CN111070106A (en) Surface treatment method for improving fatigue resistance of particle reinforced metal matrix composite
CN104911528A (en) High-strength Ni-Cr-B-Si coating material and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant