WO2022011663A1 - Procédé de préparation d'un revêtement compact résistant à l'usure sur une surface en acier à faible teneur en carbone - Google Patents

Procédé de préparation d'un revêtement compact résistant à l'usure sur une surface en acier à faible teneur en carbone Download PDF

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Publication number
WO2022011663A1
WO2022011663A1 PCT/CN2020/102579 CN2020102579W WO2022011663A1 WO 2022011663 A1 WO2022011663 A1 WO 2022011663A1 CN 2020102579 W CN2020102579 W CN 2020102579W WO 2022011663 A1 WO2022011663 A1 WO 2022011663A1
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Prior art keywords
carbon steel
resistant coating
low
wear
powder
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Ceased
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PCT/CN2020/102579
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English (en)
Chinese (zh)
Inventor
孟君晟
于利民
史晓萍
王永东
金国
王铀
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Shandong Jiaotong University
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Shandong Jiaotong University
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Priority to PCT/CN2020/102579 priority Critical patent/WO2022011663A1/fr
Priority to JP2023503178A priority patent/JP7457427B2/ja
Priority to CN202080006607.4A priority patent/CN113166918B/zh
Publication of WO2022011663A1 publication Critical patent/WO2022011663A1/fr
Priority to ZA2022/03916A priority patent/ZA202203916B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C23C4/12—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
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • 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
    • 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
    • C23C4/18—After-treatment

Definitions

  • the invention relates to the technical field of metal surface coating, in particular to a preparation method of a compact wear-resistant coating on the surface of low carbon steel.
  • Wear and corrosion are the main forms of failure of metal materials, especially machine parts under working conditions, such as gears, cylinder liners, and crankshafts of various engines.
  • the performance of high temperature oxidation resistance is an important factor in determining the length of the machine's service life. Therefore, the use of advanced surface strengthening technology to prepare the required wear-resistant coating on the surface of ordinary materials is an effective method to prevent the surface wear of metal materials. This method can significantly improve the service life of parts and save energy materials and energy.
  • Thermal spraying technology is one of the common surface repair and protection technologies at present. It has the advantages of high production efficiency, simple operation, good economic benefits, and high material utilization rate.
  • thermal spraying technologies among which supersonic arc spraying is one of the typical technologies of thermal spraying, although supersonic spraying coatings can obtain higher wear resistance.
  • defects such as pores, cracks, small coating thickness, and poor bonding with the substrate in the spray coating, resulting in poor compactness of the spray coating, and cracking may occur in harsh environments (such as high stress, high temperature and cyclic fatigue). or peeling, limiting its application range.
  • the purpose of the present invention is to provide a preparation method of a compact wear-resistant coating on the surface of a low carbon steel, so as to solve the problem of poor compactness of the wear-resistant coating prepared by supersonic spraying in the prior art.
  • the present invention provides the following scheme:
  • a preparation method of a dense wear-resistant coating on a low-carbon steel surface comprising:
  • the Si, W, Ti, Al, Cr, Ni, La and Fe elemental powders are weighed according to the preset ratio; the preset ratio is: the Si is 8.5-10.5wt.%, and the W is 6.5 ⁇ 8.5wt.%, the Ti is 4.5 ⁇ 7.5wt.%, the Al is 2.5 ⁇ 4.5wt.%, the Cr is 12 ⁇ 20wt.%, the Ni is 5.5 ⁇ 10.5wt.%, so the The La is 1-2% wt.%, and the balance is the Fe;
  • the weighed powder is ball-milled and mixed in a ball mill, and then dried to obtain a filling powder;
  • the filling powder is placed in a U-shaped steel strip groove;
  • the U-shaped steel strip groove is made of cold-rolled strip steel;
  • the rust on the surface of the low carbon steel to be coated is removed to obtain the decontaminated low carbon steel to be coated;
  • the coating is remelted by a non-melting tungsten argon arc machine to obtain a dense wear-resistant coating.
  • the mixing time of the ball milling is 4-6 hours, the drying temperature is 120-150° C., and the drying time is 1-2 hours.
  • the ball mill is a planetary ball mill.
  • the weight ratio of the filling powder to the U-shaped steel strip groove is (0.4-0.6):1.
  • the wire drawing speed of the wire drawing machine is 160-220 mm/s, and the preset diameter of the powder core wire material is 2 mm.
  • the rust on the surface of the low carbon steel to be coated is removed to obtain the decontaminated low carbon steel to be coated, which specifically includes:
  • the 14-25 mesh brown corundum is used for sand blasting under the air pressure of 0.7MPa to remove the rust on the surface of the low carbon steel to be coated, and the decontaminated low carbon steel to be coated is obtained.
  • the parameters of the supersonic arc spraying equipment in spraying are: the spraying voltage of the supersonic arc spraying equipment is 25-30V, the spraying current of the supersonic arc spraying equipment is 150-180A, and the spraying air pressure of the supersonic arc spraying equipment. 0.7 ⁇ 1.2MPa, the spraying distance of the supersonic arc spraying equipment is 180 ⁇ 220mm, the wire feeding speed of the supersonic arc spraying equipment is 78 ⁇ 85cm/min, the moving speed of the spray gun is 12 ⁇ 18mm/s, and the spraying thickness is 1.5mm ⁇ 2.5mm.
  • the parameters of the non-melting tungsten argon arc machine in remelting are: remelting current 100-150A, remelting voltage 18-24V, remelting speed 100-150mm/min, argon gas flow 8- 12L/min.
  • the ball milling mixing time is 5h
  • the drying temperature is 130°C
  • the drying time is 1.5h.
  • the weight ratio of the filling powder to the U-shaped steel strip groove is 0.5:1.
  • the present invention discloses the following technical effects:
  • the invention provides a method for preparing a dense wear-resistant coating on the surface of low carbon steel.
  • the element powder is weighed according to a preset ratio, the weighed powder is ball-milled, mixed, dried, and then placed on a U-shaped steel belt.
  • the wire drawing machine is used to draw the powder core wire; the supersonic arc spraying equipment is used to spray the prepared powder core wire to the treated low carbon steel surface to form a spray coating, and finally the spray coating is carried out by argon arc remelting.
  • the coating is remelted to obtain a dense wear-resistant coating.
  • the preparation method of the invention is simple, the prepared dense wear-resistant coating has a certain thickness and dense structure, can realize automatic production, and has low cost, and provides a new way for supersonic spraying to prepare the wear-resistant coating.
  • Fig. 1 is the flow chart of the preparation method of a kind of low carbon steel surface dense wear-resistant coating provided by the first embodiment of the present invention
  • Fig. 2 is the metallographic micrograph of the dense wear-resistant coating prepared by the second embodiment of the present invention.
  • Fig. 3 is the metallographic micrograph of the dense wear-resistant coating prepared by Example 3 of the present invention.
  • Fig. 4 is the microhardness diagram of the dense wear-resistant coating prepared according to the third embodiment of the present invention.
  • FIG. 5 is a graph of relative wear resistance of the prepared dense wear-resistant coating provided in Example 3 of the present invention.
  • the purpose of the present invention is to provide a preparation method of a compact wear-resistant coating on the surface of a low carbon steel, so as to solve the problem of poor compactness of the wear-resistant coating prepared by supersonic spraying in the prior art.
  • FIG. 1 is a flowchart of a method for preparing a dense wear-resistant coating on a low-carbon steel surface according to Embodiment 1 of the present invention. As shown in FIG. 1 , a preparation method of a dense and wear-resistant coating on a low-carbon steel surface of the present invention Methods include:
  • the preset ratio is: the Si is 8.5-10.5wt.%, the W is 6.5-8.5wt.%, the Ti is 4.5-7.5wt.%, the Al is 2.5-4.5wt.%, the Cr is 12-20wt.%, and the Ni is 5.5-10.5wt.% , the La is 1-2% wt.%, and the balance is the Fe.
  • the weighed powder is ball-milled and mixed in a ball mill, and the mixed powder is uniformly dried to obtain a filling powder.
  • the weighed powder is placed in a planetary ball mill, and ball-milled and mixed at room temperature for 4-6 hours. After mixing, drying is performed at a temperature of 120-150° C. for 1-2 hours to obtain the filling powder.
  • the U-shaped steel strip groove is made of cold-rolled strip steel.
  • cold-rolled strip steel is selected as the coating layer of the powder core wire, and the filling powder is added into the U-shaped steel strip groove, and the weight ratio of the filling powder to the U-shaped steel strip groove is (0.4-0.6 ):1.
  • the prepared powder core wire is sprayed onto the surface of the treated mild steel by using a supersonic arc spraying equipment to form a coating.
  • the parameters of the spraying process are the spraying voltage of the supersonic arc spraying equipment of 25 to 30V, the spraying current of the supersonic arc spraying equipment of 150 to 180A, the spraying pressure of the The spraying distance is 180-220mm, the wire feeding speed of the supersonic arc spraying equipment is 78-85cm/min, the moving speed of the spray gun is 12-18mm/s, and the spraying thickness is 1.5mm-2.5mm.
  • the coating is remelted by using a non-melting tungsten argon arc machine to obtain a wear-resistant coating.
  • a non-melting electrode tungsten electrode argon arc machine is used to remelt the sprayed coating to obtain a wear-resistant coating.
  • the parameters of the argon arc remelting process are: remelting current 100-150A, remelting voltage 18-24V, remelting speed 100-150mm/min, and argon flow rate 8-12L/min.
  • the ball milling mixing time is 5h
  • the drying temperature is 130°C
  • the drying time is 1.5h.
  • the weight ratio of the filling powder to the U-shaped steel strip groove is 0.5:1.
  • the wire drawing speed of the wire drawing machine is 200 mm/s.
  • the parameters of the supersonic arc spraying equipment in spraying are: the spraying voltage of the supersonic arc spraying equipment is 28V, the spraying current of the supersonic arc spraying equipment is 160A, the spraying air pressure of the supersonic arc spraying equipment is 1.0MPa, the The spraying distance of the arc spraying equipment is 190mm, the wire feeding speed of the supersonic arc spraying equipment is 80cm/min, and the moving speed of the spray gun is 15mm/s.
  • the parameters of the non-melting tungsten argon arc machine in remelting are: remelting current 120A, remelting voltage 20V, remelting speed 120mm/min, and argon flow rate 10L/min.
  • the present invention provides Embodiment 2.
  • the low-carbon steel is Q235 steel.
  • the preparation method includes the preparation of powder core wire material and the preparation of wear-resistant coating.
  • the powder core wire material is sprayed on the surface of carbon steel first, and then argon arc remelting is performed.
  • the powder core wire is prepared by filling powder and U-shaped steel belt groove, and the weight percentage of the filling powder is: 9.5wt.% Si, 7wt.% W, 5.5wt.% Ti, 3wt.% Al, 15% wt. % Cr, 7.5 wt. % Ni, 1% wt. % La, the balance is Fe, the diameter of the core wire is 2.0 mm, and the filling rate is 42%.
  • a preparation method of a compact wear-resistant coating on a low-carbon steel surface of the present invention comprises the following steps:
  • step 201 the powder is weighed according to the above proportion, and the weighed powder is placed in a planetary ball mill for ball-milling and mixing at room temperature for 5 hours;
  • Step 202 selecting cold-rolled strip steel as the coating layer of the powder core wire, adding filling powder into the U-shaped steel strip groove, and the weight ratio of the filling powder to the U-shaped steel strip groove is 0.5:1.
  • step 203 the U-shaped groove covered with the filling powder is closed, and then drawn on a wire drawing machine through a wire drawing die to form a tubular welding wire at a speed of 160-220 mm/s to obtain a powder core wire with a diameter of 2.0 mm.
  • Step 204 the surface of the Q235 steel is sandblasted with 14-25 mesh brown corundum under a pressure of 0.7 MPa to remove the rust on the surface.
  • Step 205 the prepared powder core wire is sprayed on the treated Q235 steel surface by using supersonic arc spraying equipment to form a coating; wherein the parameters of the spraying process are spraying current 160A, spraying voltage 28V, spraying air pressure 1.0MPa, spraying distance 190mm, wire feeding speed 80cm/min, spray gun moving speed 15mm/s, spray thickness 2mm.
  • the parameters of the spraying process are spraying current 160A, spraying voltage 28V, spraying air pressure 1.0MPa, spraying distance 190mm, wire feeding speed 80cm/min, spray gun moving speed 15mm/s, spray thickness 2mm.
  • step 206 the sprayed coating is remelted by a non-melting tungsten argon arc machine to obtain a dense wear-resistant coating.
  • argon arc remelting process parameters are remelting current 120A, remelting voltage 20V, remelting speed 120mm/min, and argon gas flow rate 10L/min.
  • the cross-sectional morphology of the dense wear-resistant coating in this example was analyzed using an Axio Lab.Al analytical grade upright material microscope, and the results are shown in Figure 2.
  • the dense wear-resistant coating prepared in the embodiment of the present invention has a good metallurgical bond with the substrate, no defects such as pores are generated, and the structure is uniformly distributed in a dendritic shape.
  • the low-carbon steel is Q235 steel in a method for preparing a dense wear-resistant coating on a low-carbon steel surface.
  • the preparation method includes the preparation of powder core wire material and the preparation of wear-resistant coating.
  • the powder core wire material is sprayed on the surface of carbon steel first, and then argon arc remelting is performed.
  • the powder core wire material is prepared by filling powder and U-shaped steel belt groove, and the weight percentage of the powder core wire material is: 9.5wt.% Si, 7.5wt.% W, 6.5wt.% Ti, 3wt% % Al, 18% wt. % Cr, 8 wt. % Ni, 1.5 wt. % La, the balance is Fe, the diameter of the core wire is 2.0 mm, and the filling rate is 42%.
  • a preparation method of a compact wear-resistant coating on a low-carbon steel surface of the present invention comprises the following steps:
  • step 301 the powder is weighed according to the above proportion, and the weighed powder is placed in a planetary ball mill for ball milling and mixing at room temperature for 5 hours; the mixed powder after ball milling is kept at 130°C for 1.5 hours to obtain a filling powder.
  • Step 302 selecting cold-rolled strip steel as the coating layer of the powder core wire, adding filling powder into the U-shaped steel strip groove, and the weight ratio of the filling powder to the U-shaped steel strip groove is 0.5:1.
  • Step 303 the U-shaped groove covered with the powder filling is closed, and then drawn into a tubular welding wire at a speed of 160-220 mm/s through a wire drawing die on a wire drawing machine to obtain a powder core wire with a diameter of 2.0 mm.
  • Step 304 the surface of the Q235 steel is sandblasted with 14-25 mesh brown corundum under a pressure of 0.7 MPa to remove the rust on the surface.
  • Step 305 the prepared powder core wire is sprayed on the treated Q235 steel surface by using supersonic arc spraying equipment to form a coating; wherein the parameters of the spraying process are spraying current 160A, spraying voltage 28V, spraying air pressure 1.0MPa, spraying distance 190mm, wire feeding speed 80cm/min, spray gun moving speed 15mm/s, spray thickness 2mm.
  • the parameters of the spraying process are spraying current 160A, spraying voltage 28V, spraying air pressure 1.0MPa, spraying distance 190mm, wire feeding speed 80cm/min, spray gun moving speed 15mm/s, spray thickness 2mm.
  • step 306 the sprayed coating is remelted using a non-melting tungsten argon arc machine to obtain a dense wear-resistant coating.
  • argon arc remelting process parameters are remelting current 120A, remelting voltage 20V, remelting speed 120mm/min, and argon gas flow rate 10L/min.
  • the cross-sectional morphology of the dense wear-resistant coating in this example was analyzed using an Axio Lab.Al analytical grade upright material microscope, and the results are shown in Figure 3.
  • the dense wear-resistant coating prepared in the embodiment of the present invention has a good metallurgical bond with the substrate, no defects such as pores are generated, and the structure is uniformly distributed in a dendritic shape.
  • the HVST-1000 Vickers hardness tester is used to test the hardness of the dense wear-resistant coating in this example.
  • the test results are: the hardness of the supersonic spray coating is 515HV, and the hardness of the coating after argon arc remelting treatment is 848HV ⁇ 892HV, it can be seen that the hardness of the coating is increased by 1.6 to 1.7 times after argon arc remelting treatment, as shown in Figure 4.
  • the friction and wear of the dense wear-resistant coating in this example was tested by the MMS-2A friction and wear tester.
  • the test results are: the relative wear resistance after argon arc remelting is 7 times higher than that of the base Q235 steel, which is higher than that of the base Q235 steel.
  • the wear resistance of the HVAC sprayed coating is increased by a factor of 3, and the results are shown in Figure 5.
  • the invention provides a preparation method of the dense wear-resistant coating on the surface of low carbon steel, which adopts supersonic arc spraying and argon arc heavy
  • the melt-phase combination method can obtain coatings with high density and high hardness, thereby promoting the application of coatings in wear-resistant environments.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

L'invention concerne un procédé de préparation d'un revêtement compact résistant à l'usure sur une surface en acier à faible teneur en carbone, le procédé consistant à : peser des poudres de Si, W, Ti, Al, Cr, Ni, La et Fe élémentaires à un rapport prédéfini ; broyer par boulets et mélanger les poudres pesées dans un broyeur à boulets et, après leur mélange uniforme, les sécher de manière à obtenir une poudre de charge ; placer la poudre de charge dans une rainure d'une bande d'acier en forme de U ; fermer une extrémité ouverte de la rainure de bande d'acier en forme de U dans laquelle la poudre de charge est placée et réaliser un tréfilage sur la rainure de bande d'acier en forme de U fermée au moyen d'une tréfileuse, de manière à obtenir un fil à noyau de poudre présentant un diamètre prédéfini ; éliminer la saleté et la rouille de la surface de l'acier à faible teneur en carbone à revêtir pour obtenir de l'acier à faible teneur en carbone décontaminé à revêtir ; revêtir par pulvérisation le fil à noyau en poudre sur la surface de l'acier à faible teneur en carbone décontaminé à revêtir au moyen d'un dispositif de pulvérisation à arc supersonique, de manière à former un revêtement ; et refondre le revêtement au moyen d'une machine de soudage à arc de tungstène non fondu pour obtenir un revêtement compact résistant à l'usure. Le revêtement compact résistant à l'usure obtenu à l'aide du procédé de préparation susmentionné de la présente invention présente une bonne compacité.
PCT/CN2020/102579 2020-07-17 2020-07-17 Procédé de préparation d'un revêtement compact résistant à l'usure sur une surface en acier à faible teneur en carbone Ceased WO2022011663A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2020/102579 WO2022011663A1 (fr) 2020-07-17 2020-07-17 Procédé de préparation d'un revêtement compact résistant à l'usure sur une surface en acier à faible teneur en carbone
JP2023503178A JP7457427B2 (ja) 2020-07-17 2020-07-17 低炭素鋼表面の緻密な耐摩耗コーティングの製造方法
CN202080006607.4A CN113166918B (zh) 2020-07-17 2020-07-17 一种低碳钢表面致密耐磨涂层的制备方法
ZA2022/03916A ZA202203916B (en) 2020-07-17 2022-04-06 Method for preparing compact wear-resistant coating on low-carbon steel surface

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PCT/CN2020/102579 WO2022011663A1 (fr) 2020-07-17 2020-07-17 Procédé de préparation d'un revêtement compact résistant à l'usure sur une surface en acier à faible teneur en carbone

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