CN110819934A - Preparation method of microbial corrosion resistant TiN/Ti ceramic metal composite coating - Google Patents
Preparation method of microbial corrosion resistant TiN/Ti ceramic metal composite coating Download PDFInfo
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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
- C23C4/134—Plasma spraying
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/076—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with titanium or zirconium or hafnium
- C01B21/0765—Preparation by carboreductive nitridation
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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
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- C—CHEMISTRY; METALLURGY
- 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
- C23C4/137—Spraying in vacuum or in an inert atmosphere
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
Abstract
The invention discloses a preparation method of a microbial corrosion resistant TiN/Ti ceramic metal composite coating, which comprises the following steps: firstly, preparing TiN particles by adopting a carbothermic method; secondly, uniformly mixing TC4 titanium alloy powder and TiN particles to obtain spraying powder; and thirdly, drying the spraying powder and spraying the dried spraying powder on the surface of the pipeline steel by adopting a plasma spraying process to obtain the microbial corrosion resistant TiN/Ti ceramic metal composite coating. The ceramic metal composite coating prepared by the invention has excellent microbial corrosion resistance, is used in the microbial corrosion working environment of long-distance pipeline steel, and the coating material shows excellent microbial corrosion resistance, can meet the requirements of the long-distance pipeline steel working environment, effectively solves the problem of microbial corrosion of the long-distance pipeline steel, and has good application prospect in the long-distance pipeline protection field.
Description
Technical Field
The invention belongs to the technical field of preparation of ceramic metal composite coatings, and particularly relates to a preparation method of a microbial corrosion resistant TiN/Ti ceramic metal composite coating.
Background
In recent years, the petroleum and energy industry in China is rapidly developed, and the construction of buried pipelines is steadily increased. The long-distance pipeline is mostly laid in the soil environment, so that the microbial corrosion has great influence on the safety and the service life of pipeline steel. Microbial corrosion refers to the effect of biological life activities directly or indirectly promoting pipeline steel failure caused by the corrosion process. The device is found in various working environments such as soil, machinery, oil fields, seawater and the like. The microbial corrosion always proceeds simultaneously with the electrochemical corrosion, and the microorganisms causing the corrosion of metal materials are generally bacteria and fungi, and also protozoa, algae, and the like. The corrosion process of microorganisms on metal materials is mainly to participate in the corrosion action by changing the electrode potential and the concentration potential. Particularly, for long-distance oil and gas pipeline steel, microbial corrosion exists under the stripping coating of the outer surface of most pipelines, microbial metabolic activity greatly changes the environmental characteristics of the outer surface of the pipeline in a service state, so that the pipeline steel is seriously pitting-corroded, meanwhile, the microbial corrosion is also one of important factors for causing stress corrosion cracking of the pipeline steel, and most of initial cracks of the stress corrosion cracking are generated at the bottom of a metal pitting pit. Therefore, the problem of microbial corrosion failure becomes an inevitable important problem in the process of pipeline steel development, development and application.
With the continuous development and perfection of the thermal spraying technology and the expansion of the application field, the corrosion resistance and wear resistance advantages of the thermal spraying coating are more and more widely applied to pipeline protection, and the corrosion and wear problems in the use process of the pipeline can be effectively controlled by adopting the processes of thermal spraying metal coatings, ceramic metal composite coatings, intermetallic compound coatings and the like, so that the method is an economic and reliable surface treatment method received by people, and the problem of pipeline protection is effectively solved. Therefore, the process for preparing the ceramic-metal composite coating by thermal spraying can be applied to the field of microbial corrosion resistance of pipeline steel, and has good application prospect in the field of corrosion resistance and wear resistance of long-distance pipelines. Titanium and titanium alloys are widely used as biomedical materials mainly because of their good biocompatibility and microbial corrosion resistance. The surface of titanium and titanium alloy can spontaneously form an oxide film, and the oxide film is generally a few nanometers and has high stability, so that the titanium and titanium alloy show high chemical stability and microbial corrosion resistance. The titanium alloy has extremely strong microbial corrosion resistance, no toxicity, light weight, high strength and excellent biocompatibility, is an ideal medical metal material, and is a common hard tissue substitute for artificial joints, artificial bones, implanted teeth and the like. Titanium nitride ceramics have the characteristics of high melting point, high hardness and corrosion resistance, and titanium nitride is widely applied to industry due to excellent mechanical property and chemical stability, so that the titanium nitride ceramics become an effective method for solving the corrosion resistance problem at present. The titanium nitride coating is a golden yellow film, has the characteristics of high hardness, good corrosion resistance, high intermetallic binding force and the like, and is a commonly used wear-resistant ceramic coating material in industry. Because titanium nitride has extremely strong microbial corrosion resistance, the titanium nitride coating is often used for improving the medical surface property, so that the effect of improving the microbial corrosion resistance of the alloy is achieved. The TiN/Ti ceramic metal composite coating is prepared on the surface of the pipeline steel by utilizing the carbothermic reduction reaction and the plasma spraying technology, and has excellent microbial corrosion resistance and wear resistance, so that the coating has good industrial feasibility, can meet the requirement of the microbial corrosion working environment of the pipeline steel of a long-distance pipeline, has simple process and low cost, and is suitable for wide popularization and application.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method of a microbial corrosion resistant TiN/Ti ceramic metal composite coating aiming at the defects of the prior art. The method utilizes the TC4 titanium alloy to replace the traditional pure titanium as coating spraying powder, and the coating spraying powder is matched with the titanium nitride powder, so that the passivation film of the TC4 titanium alloy is thinner, has the characteristics of stability, completeness, easiness in self-healing and the like, and can prevent the development of corrosion. The ceramic metal composite coating prepared by the method has excellent microbial corrosion resistance, is used in the microbial corrosion working environment of long-distance pipeline steel, and the coating material shows excellent microbial corrosion resistance, can meet the requirements of the long-distance pipeline steel working environment, effectively solves the problem of microbial corrosion of the long-distance pipeline steel, and has good application prospect in the long-distance pipeline protection field.
In order to solve the technical problems, the invention adopts the technical scheme that: a preparation method of a microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized by comprising the following steps:
preparing TiN particles by a carbothermic method, wherein the mass percentage of TiN in the TiN particles is not less than 98%, and the average grain diameter of the TiN particles is not more than 5 mu m;
step two, uniformly mixing TC4 titanium alloy powder and the TiN particles prepared in the step one to obtain spraying powder; the mass percentage content of TC4 titanium alloy powder in the spraying powder is 80% -95%, and the balance is TiN particles; the average grain diameter of the TC4 titanium alloy powder is not more than 60 mu m;
step three, drying the spraying powder in the step two, and then spraying the dried spraying powder on the surface of the pipeline steel by adopting a plasma spraying process to obtain the microbial corrosion resistant TiN/Ti ceramic metal composite coating; the plasma spraying process comprises the following process conditions: the arc voltage is 100V-150V, the arc current is 600A-900A, the nitrogen flow is 20L/min-30L/min, the nitrogen pressure is 1.0 MPa-1.5 MPa, the hydrogen flow is 10L/min-15L/min, the nitrogen pressure is 0.5 MPa-1.0 MPa, the moving speed of the spray gun is 10 mm/s-30 mm/s, and the spraying distance is 120 mm-150 mm.
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized in that the preparation of TiN particles by the carbothermic method in the first step comprises the following steps: placing titanium dioxide and carbon black in a wet ball mill for wet ball milling, then drying the materials subjected to wet ball milling, placing the materials in an atmosphere furnace, heating to 1500 ℃ at a heating rate of 10-15 ℃/min under a flowing nitrogen atmosphere, and preserving heat for 4 hours to obtain TiN particles; the mass ratio of the titanium dioxide to the carbon black is 69: 21.
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized in that the mass purity of the titanium dioxide is not less than 98%, and the average grain size of the titanium dioxide is not more than 5 mu m; the carbon content of the carbon black is not less than 99%, and the average particle size of the carbon black is not more than 200 nm.
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized in that the flow of flowing nitrogen is 3L/min.
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized in that the mass percentage of TC4 titanium alloy powder in the spraying powder in the second step is 90%, and the balance is TiN particles.
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized in that in the third step, the arc voltage is 120V-140V, the arc current is 700A-800A, the nitrogen flow is 22L/min-26L/min, the nitrogen pressure is 1.2 MPa-1.4 MPa, the hydrogen flow is 12L/min-14L/min, the hydrogen pressure is 0.6 MPa-0.8 MPa, the moving speed of a spray gun is 20 mm/s-25 mm/s, and the spraying distance is 130 mm-140 mm.
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized in that the arc voltage is 130V, the arc current is 750A, the nitrogen flow is 24L/min, the nitrogen pressure is 1.3MPa, the hydrogen flow is 13L/min, the hydrogen pressure is 0.7MPa, the moving speed of a spray gun is 22mm/s, and the spraying distance is 135 mm.
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized in that the surface of the pipeline steel is sequentially subjected to rust removal, descaling and oil removal cleaning treatment before spraying in the third step.
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized in that the thickness of the microbial corrosion resistant TiN/Ti ceramic metal composite coating in the third step is 500-800 microns.
Compared with the prior art, the invention has the following advantages:
1. thermodynamically, pure titanium is an active metal, and in an oxidizing environment (such as aqueous solution and atmospheric environment), the surface is easily oxidized to form a passivation film (TiO)2) And the corrosion resistance of the pure titanium is improved. According to the method, the TC4 titanium alloy is used for replacing the traditional pure titanium to be used as the coating spraying powder, the passivation film of the TC4 titanium alloy is thin, the coating has the characteristics of stability, completeness, easiness in self-healing and the like, and the corrosion can be prevented from developing, so that the ceramic metal composite coating prepared by using the TC4 titanium alloy as the spraying powder has stronger local corrosion resistance, is insensitive to atmospheric corrosion, pitting corrosion, microbial corrosion and the like, and has better microbial corrosion resistance compared with the ceramic metal composite coating prepared by using the traditional pure titanium as the spraying powder.
2. In the present invention, inexpensive titanium dioxide powder and carbon black are preferably used as main raw materials to perform carbothermic reduction reaction (TiO)2+2C+1/2N2→ TiN +2CO) to produce titanium nitride powder. The method has the advantages of simple production process and low preparation cost. The titanium nitride powder prepared by the process has uniform and fine particles and no impurity.
3. Compared with the plasma spraying process parameters for preparing the traditional coating, the plasma spraying process parameters for preparing the ceramic-metal composite coating have the following characteristics: the composite coating has high arc voltage and arc current, so that titanium alloy particles are fully melted, titanium nitride particles and titanium alloy particles are fully mixed, the interface between different particles is well combined, and the composite coating has high mechanical strength and corrosion resistance. The nitrogen is used for replacing argon as protective gas, the titanium nitride ceramic particle surface can be effectively prevented from being oxidized, and a nano-scale titanium nitride film is formed on the surface of the titanium alloy crystal particle of the composite coating, so that the microbial corrosion resistance of the titanium alloy crystal particle is effectively improved. The spray gun has lower moving speed and higher spraying distance, the lower moving speed of the spray gun effectively reduces the cooling speed of the ceramic metal composite coating, reduces residual stress concentration generated by different thermal expansion coefficients of ceramic metal, and avoids the cracking phenomenon of the composite coating. The titanium nitride particles and the titanium alloy particles can be more fully mixed by the larger spraying distance, and the phenomenon that the titanium nitride particles are agglomerated or the titanium alloy particles are agglomerated is avoided, so that the strength of the ceramic-metal composite coating is reduced.
4. The method of the invention utilizes the plasma spraying process to prepare the TiN/Ti ceramic metal composite coating on the surface of the pipeline steel, the coating has uniform microstructure and compact structure, no obvious aggregated pores and macroscopic cracks exist, and the combination condition of the matrix and the coating material is good. In addition, the coating has extremely excellent microbial corrosion resistance and wear resistance, can well protect the metal outer surface of the pipeline steel in an environment under the combined action of microbial corrosion and wear, and can effectively prolong the service life of the pipeline steel.
5. The TiN/Ti ceramic metal composite coating prepared by the invention has higher hardness and wear resistance. When the oxide film on the surface of the titanium alloy coating is damaged due to abrasion or shearing force, the surface of the titanium alloy is exposed after the oxide film is damaged, and the microbial corrosion resistance of the ceramic-metal composite coating is reduced. The titanium nitride ceramic has extremely high hardness and excellent wear resistance, and titanium nitride particles in the ceramic-metal composite coating can effectively improve the wear resistance and the coating strength of the coating and form effective mechanical protection for the ceramic-metal composite coating.
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Drawings
Fig. 1 is an SEM photograph of TiN particles prepared in example 1 of the present invention.
FIG. 2 is a metallographic photograph of the surface of the ceramic metal composite coating prepared in example 1 of the present invention.
Fig. 3 is an SEM photograph of TiN particles prepared in example 3 of the present invention.
FIG. 4 is a metallographic photograph of the surface of the ceramic metal composite coating prepared in example 3 of the present invention.
Detailed Description
Example 1
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating comprises the following steps:
step one, preparing TiN particles by adopting a carbothermic method, which comprises the following specific steps: weighing titanium dioxide and carbon black according to a mass ratio of 69:21, placing the weighed titanium dioxide and carbon black in a wet ball mill for wet ball milling, then drying the materials subjected to wet ball milling, placing the materials in an atmosphere furnace, heating to 1500 ℃ at a heating rate of 10 ℃/min under a flowing nitrogen atmosphere with a flow rate of 3L/min, and preserving heat for 4 hours to obtain TiN particles; the mass purity of the titanium dioxide is not less than 98%, and the average particle size of the titanium dioxide is not more than 5 mu m; the carbon content of the carbon black is not less than 99%, and the average particle size of the carbon black is not more than 200 nm; the mass percentage content of TiN in the TiN particles is not less than 98 percent, and the average grain diameter of the TiN particles is not more than 5 mu m;
step two, uniformly mixing TC4 titanium alloy powder and the TiN particles prepared in the step one to obtain spraying powder; the mass percentage of TC4 titanium alloy powder in the spraying powder is 95%, and the balance is TiN particles; the average grain diameter of the TC4 titanium alloy powder is not more than 60 mu m;
step three, sequentially carrying out rust removal, descaling and oil removal cleaning treatment on the surface of the pipeline steel (made of X80 steel), drying the spraying powder in the step two at 300 ℃ for 20min, and then spraying the dried spraying powder on the surface of the pipeline steel subjected to the oil removal cleaning treatment by adopting a plasma spraying process, wherein the process conditions are as follows: the arc voltage is 120V, the arc current is 700A, the nitrogen flow is 22L/min, the nitrogen pressure is 1.2MPa, the hydrogen flow is 12L/min, the nitrogen pressure is 0.6MPa, the moving speed of the spray gun is 25mm/s, and the spraying distance is 140 mm; obtaining the TiN/Ti ceramic metal composite coating with the thickness of 500 mu m and the microbial corrosion resistance.
Fig. 1 is an SEM photograph of the TiN particles prepared in this example, and it can be seen from fig. 1 that the TiN particles are approximately spherical, which can ensure good flowability of the powder during spraying, facilitating the continuous spraying. Fig. 2 is a metallographic photograph of the surface of the ceramic-metal composite coating prepared in this example, and it can be seen from fig. 2 that the TC4 titanium alloy powder in the coating powder has a good melting state and a good surface spreading state, the melting state of the powder particles determines the characteristics of the coating structure, and the good melting state and spreading degree can fill the pores as much as possible to reduce the existence of defects. The combination condition of the pipeline steel matrix and the ceramic metal composite coating is good, the structure is uniform, the coating structure is compact, and no obvious aggregation pores or macrocracks exist.
The ceramic metal composite coating prepared by the embodiment has excellent microbial corrosion resistance, is used for the microbial corrosion working environment of long-distance pipeline steel, and the coating material shows excellent microbial corrosion resistance, can meet the requirement of the long-distance pipeline steel working environment, effectively solves the problem of microbial corrosion of the long-distance pipeline steel, and has good application prospect in the field of long-distance pipeline protection.
Example 2
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating comprises the following steps:
step one, preparing TiN particles by adopting a carbothermic method, which comprises the following specific steps: weighing titanium dioxide and carbon black according to a mass ratio of 69:21, placing the weighed titanium dioxide and carbon black in a wet ball mill for wet ball milling, then drying the materials subjected to wet ball milling, placing the materials in an atmosphere furnace, heating to 1500 ℃ at a heating rate of 12 ℃/min under a flowing nitrogen atmosphere with a flow rate of 3L/min, and preserving heat for 4 hours to obtain TiN particles; the mass purity of the titanium dioxide is not less than 98%, and the average particle size of the titanium dioxide is not more than 5 mu m; the carbon content of the carbon black is not less than 99%, and the average particle size of the carbon black is not more than 200 nm; the mass percentage content of TiN in the TiN particles is not less than 98 percent, and the average grain diameter of the TiN particles is not more than 5 mu m;
step two, uniformly mixing TC4 titanium alloy powder and the TiN particles prepared in the step one to obtain spraying powder; the mass percentage of TC4 titanium alloy powder in the spraying powder is 90%, and the balance is TiN particles; the average grain diameter of the TC4 titanium alloy powder is not more than 60 mu m;
step three, sequentially carrying out rust removal, descaling and oil removal cleaning treatment on the surface of the pipeline steel (made of X70 steel), drying the spraying powder in the step two at 300 ℃ for 20min, and then spraying the dried spraying powder on the surface of the pipeline steel subjected to the oil removal cleaning treatment by adopting a plasma spraying process, wherein the process conditions are as follows: the arc voltage is 130V, the arc current is 750A, the nitrogen flow is 24L/min, the nitrogen pressure is 1.3MPa, the hydrogen flow is 13L/min, the nitrogen pressure is 0.7MPa, the moving speed of the spray gun is 22mm/s, and the spraying distance is 135 mm; obtaining the TiN/Ti ceramic metal composite coating which has the thickness of 650 mu m and is resistant to microbial corrosion.
The ceramic metal composite coating prepared by the embodiment has excellent microbial corrosion resistance and wear resistance, is used for the microbial corrosion working environment of long-distance pipeline steel, and the coating material shows excellent microbial corrosion resistance and wear resistance, can meet the requirements of the long-distance pipeline steel working environment, effectively solves the problem of microbial corrosion of the long-distance pipeline steel, and has good application prospect in the long-distance pipeline protection field.
Example 3
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating comprises the following steps:
step one, preparing TiN particles by adopting a carbothermic method, which comprises the following specific steps: weighing titanium dioxide and carbon black according to a mass ratio of 69:21, placing the weighed titanium dioxide and carbon black in a wet ball mill for wet ball milling, then drying the materials subjected to wet ball milling, placing the materials in an atmosphere furnace, heating to 1500 ℃ at a heating rate of 15 ℃/min under a flowing nitrogen atmosphere with a flow rate of 3L/min, and preserving heat for 4 hours to obtain TiN particles; the mass purity of the titanium dioxide is not less than 98%, and the average particle size of the titanium dioxide is not more than 5 mu m; the carbon content of the carbon black is not less than 99%, and the average particle size of the carbon black is not more than 200 nm; the mass percentage content of TiN in the TiN particles is not less than 98 percent, and the average grain diameter of the TiN particles is not more than 5 mu m;
step two, uniformly mixing TC4 titanium alloy powder and the TiN particles prepared in the step one to obtain spraying powder; the mass percentage of TC4 titanium alloy powder in the spraying powder is 80%, and the balance is TiN particles; the average grain diameter of the TC4 titanium alloy powder is not more than 60 mu m;
step three, sequentially carrying out rust removal, descaling and oil removal cleaning treatment on the surface of the pipeline steel (made of X100 steel), drying the spraying powder in the step two at 300 ℃ for 20min, and then spraying the dried spraying powder on the surface of the pipeline steel subjected to the oil removal cleaning treatment by adopting a plasma spraying process, wherein the process conditions are as follows: the arc voltage is 140V, the arc current is 800A, the nitrogen flow is 26L/min, the nitrogen pressure is 1.4MPa, the hydrogen flow is 14L/min, the nitrogen pressure is 0.8MPa, the moving speed of the spray gun is 20mm/s, and the spraying distance is 130 mm; obtaining the microbial corrosion resistant TiN/Ti ceramic metal composite coating with the thickness of 800 mu m.
Fig. 3 is an SEM photograph of the TiN particles prepared in this example, and it can be seen from fig. 3 that the TiN particles are approximately spherical, which can ensure good flowability of the powder during spraying, facilitating the continuous spraying. Fig. 4 is a metallographic photograph of the surface of the ceramic metal composite coating prepared in this example, and it can be seen from fig. 4 that the TC4 titanium alloy powder in the coating powder has a good melting state and a good surface spreading state, the melting state of the powder particles determines the characteristics of the coating structure, and the good melting state and spreading degree can fill the pores as much as possible to reduce the existence of defects. The combination condition of the pipeline steel matrix and the ceramic metal composite coating is good, the structure is uniform, the coating structure is compact, and no obvious aggregation pores or macrocracks exist.
The ceramic metal composite coating prepared by the embodiment has excellent microbial corrosion resistance, is used for the microbial corrosion working environment of long-distance pipeline steel, and the coating material shows excellent microbial corrosion resistance, can meet the requirement of the long-distance pipeline steel working environment, effectively solves the problem of microbial corrosion of the long-distance pipeline steel, and has good application prospect in the field of long-distance pipeline protection.
Comparative example
This comparative example is the same procedure as example 3, except that: pure titanium powder was used instead of TC4 titanium alloy powder in step two of example 3.
Example 4
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating comprises the following steps:
step one, preparing TiN particles by adopting a carbothermic method, which comprises the following specific steps: weighing titanium dioxide and carbon black according to a mass ratio of 69:21, placing the weighed titanium dioxide and carbon black in a wet ball mill for wet ball milling, then drying the materials subjected to wet ball milling, placing the materials in an atmosphere furnace, heating to 1500 ℃ at a heating rate of 10 ℃/min under a flowing nitrogen atmosphere with a flow rate of 3L/min, and preserving heat for 4 hours to obtain TiN particles; the mass purity of the titanium dioxide is not less than 98%, and the average particle size of the titanium dioxide is not more than 5 mu m; the carbon content of the carbon black is not less than 99%, and the average particle size of the carbon black is not more than 200 nm; the mass percentage content of TiN in the TiN particles is not less than 98 percent, and the average grain diameter of the TiN particles is not more than 5 mu m;
step two, uniformly mixing TC4 titanium alloy powder and the TiN particles prepared in the step one to obtain spraying powder; the mass percentage of TC4 titanium alloy powder in the spraying powder is 85 percent, and the balance is TiN particles; the average grain diameter of the TC4 titanium alloy powder is not more than 60 mu m;
step three, sequentially carrying out rust removal, descaling and oil removal cleaning treatment on the surface of the pipeline steel (made of X100 steel), drying the spraying powder in the step two at 300 ℃ for 20min, and then spraying the dried spraying powder on the surface of the pipeline steel subjected to the oil removal cleaning treatment by adopting a plasma spraying process, wherein the process conditions are as follows: the arc voltage is 100V, the arc current is 600A, the nitrogen flow is 20L/min, the nitrogen pressure is 1.5MPa, the hydrogen flow is 15L/min, the nitrogen pressure is 1.0MPa, the moving speed of the spray gun is 30mm/s, and the spraying distance is 150 mm; obtaining the TiN/Ti ceramic metal composite coating with the thickness of 600 mu m and the microbial corrosion resistance.
The ceramic metal composite coating prepared by the embodiment has excellent microbial corrosion resistance, is used for the microbial corrosion working environment of long-distance pipeline steel, and the coating material shows excellent microbial corrosion resistance, can meet the requirement of the long-distance pipeline steel working environment, effectively solves the problem of microbial corrosion of the long-distance pipeline steel, and has good application prospect in the field of long-distance pipeline protection.
Example 5
The preparation method of the microbial corrosion resistant TiN/Ti ceramic metal composite coating comprises the following steps:
step one, preparing TiN particles by adopting a carbothermic method, which comprises the following specific steps: weighing titanium dioxide and carbon black according to a mass ratio of 69:21, placing the weighed titanium dioxide and carbon black in a wet ball mill for wet ball milling, then drying the materials subjected to wet ball milling, placing the materials in an atmosphere furnace, heating to 1500 ℃ at a heating rate of 15 ℃/min under a flowing nitrogen atmosphere with a flow rate of 3L/min, and preserving heat for 4 hours to obtain TiN particles; the mass purity of the titanium dioxide is not less than 98%, and the average particle size of the titanium dioxide is not more than 5 mu m; the carbon content of the carbon black is not less than 99%, and the average particle size of the carbon black is not more than 200 nm; the mass percentage content of TiN in the TiN particles is not less than 98 percent, and the average grain diameter of the TiN particles is not more than 5 mu m;
step two, uniformly mixing TC4 titanium alloy powder and the TiN particles prepared in the step one to obtain spraying powder; the mass percentage of TC4 titanium alloy powder in the spraying powder is 90%, and the balance is TiN particles; the average grain diameter of the TC4 titanium alloy powder is not more than 60 mu m;
step three, sequentially carrying out rust removal, descaling and oil removal cleaning treatment on the surface of the pipeline steel (made of X100 steel), drying the spraying powder in the step two at 300 ℃ for 20min, and then spraying the dried spraying powder on the surface of the pipeline steel subjected to the oil removal cleaning treatment by adopting a plasma spraying process, wherein the process conditions are as follows: the arc voltage is 150V, the arc current is 900A, the nitrogen flow is 20L/min, the nitrogen pressure is 1.0MPa, the hydrogen flow is 10L/min, the nitrogen pressure is 0.5MPa, the moving speed of the spray gun is 10mm/s, and the spraying distance is 120 mm; obtaining the TiN/Ti ceramic metal composite coating with the thickness of 700 mu m and the microbial corrosion resistance.
The ceramic metal composite coating prepared by the embodiment has excellent microbial corrosion resistance, is used for the microbial corrosion working environment of long-distance pipeline steel, and the coating material shows excellent microbial corrosion resistance, can meet the requirement of the long-distance pipeline steel working environment, effectively solves the problem of microbial corrosion of the long-distance pipeline steel, and has good application prospect in the field of long-distance pipeline protection.
The average corrosion rate of the pipeline steel in the embodiments 1, 2, 3, 4 and 5 of the invention under the condition of no TiN/Ti ceramic metal composite coating is determined by adopting a weight loss analysis method, and the pipeline steel is soaked in a sulfate reducing bacteria and iron oxidizing bacteria simulated solution for 10 days, and the average corrosion rate is determined after 20 days, 30 days and 40 days. The results are shown in Table 1.
TABLE 1 average Corrosion Rate determination results
As can be seen from Table 1, the average corrosion rate of the pipeline steel coated with TiN/Ti ceramic-metal composite coating of the present invention is much lower than that of the pipeline steel not coated with ceramic-metal composite coating under the same microbial corrosion condition, and the average corrosion rate of the pipeline steel coated with ceramic-metal composite coating using TC4 titanium alloy as metal phase is also lower than that of the pipeline steel coated with ceramic-metal composite coating using pure titanium as metal phase. The TiN/Ti ceramic metal composite coating can greatly reduce the corrosion rate of the pipeline steel and effectively improve the microbial corrosion resistance of the pipeline steel.
The pipeline steels in the embodiments 1, 2, 3, 4 and 5 of the present invention were tested for microhardness in the presence or absence of a TiN/Ti ceramic metal composite coating, and were subjected to a frictional wear test using a frictional wear tester under conditions of an applied load of 20N and a rotational speed of 1200r/min, to test the wear loss after wear for 20 minutes, 40 minutes and 60 minutes, respectively. The results are shown in Table 2.
Table 2 abrasion amount test results
As can be seen from Table 2, the pipeline steel coated with the TiN/Ti ceramic-metal composite coating of the invention has higher microhardness. Under the same friction and wear test conditions, the abrasion loss of the pipeline steel sprayed with the TiN/Ti ceramic-metal composite coating is greatly smaller than that of the pipeline steel not sprayed with the ceramic-metal composite coating, because the TiN ceramic phase in the spraying powder effectively improves the hardness and the wear resistance of the coating, and the TiN/Ti ceramic-metal composite coating can effectively improve the wear resistance of the pipeline steel.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. A preparation method of a microbial corrosion resistant TiN/Ti ceramic metal composite coating is characterized by comprising the following steps:
preparing TiN particles by a carbothermic method, wherein the mass percentage of TiN in the TiN particles is not less than 98%, and the average grain diameter of the TiN particles is not more than 5 mu m;
step two, uniformly mixing TC4 titanium alloy powder and the TiN particles prepared in the step one to obtain spraying powder; the mass percentage content of TC4 titanium alloy powder in the spraying powder is 80% -95%, and the balance is TiN particles; the average grain diameter of the TC4 titanium alloy powder is not more than 60 mu m;
step three, drying the spraying powder in the step two, and then spraying the dried spraying powder on the surface of the pipeline steel by adopting a plasma spraying process to obtain the microbial corrosion resistant TiN/Ti ceramic metal composite coating; the plasma spraying process comprises the following process conditions: the arc voltage is 100V-150V, the arc current is 600A-900A, the nitrogen flow is 20L/min-30L/min, the nitrogen pressure is 1.0 MPa-1.5 MPa, the hydrogen flow is 10L/min-15L/min, the nitrogen pressure is 0.5 MPa-1.0 MPa, the moving speed of the spray gun is 10 mm/s-30 mm/s, and the spraying distance is 120 mm-150 mm.
2. The method for preparing a microbial corrosion resistant TiN/Ti ceramic metal composite coating according to claim 1, wherein the step one of preparing TiN particles by using the carbothermic method comprises: placing titanium dioxide and carbon black in a wet ball mill for wet ball milling, then drying the materials subjected to wet ball milling, placing the materials in an atmosphere furnace, heating to 1500 ℃ at a heating rate of 10-15 ℃/min under a flowing nitrogen atmosphere, and preserving heat for 4 hours to obtain TiN particles; the mass ratio of the titanium dioxide to the carbon black is 69: 21.
3. The method for preparing a microbial corrosion resistant TiN/Ti ceramic metal composite coating according to claim 2, wherein the titanium dioxide has a mass purity of not less than 98%, and an average particle size of not more than 5 μm; the carbon content of the carbon black is not less than 99%, and the average particle size of the carbon black is not more than 200 nm.
4. The method for preparing a TiN/Ti ceramic metal composite coating layer with microbial corrosion resistance according to claim 2 or 3, wherein the flow rate of flowing nitrogen is 3L/min.
5. The method for preparing a microbial corrosion resistant TiN/Ti ceramic-metal composite coating according to claim 1, wherein in the spraying powder in the second step, the mass percentage of TC4 titanium alloy powder is 90%, and the balance is TiN particles.
6. The method for preparing the microbial corrosion resistant TiN/Ti ceramic-metal composite coating according to claim 1, wherein in the third step, the arc voltage is 120V-140V, the arc current is 700A-800A, the nitrogen flow is 22L/min-26L/min, the nitrogen pressure is 1.2 MPa-1.4 MPa, the hydrogen flow is 12L/min-14L/min, the hydrogen pressure is 0.6 MPa-0.8 MPa, the moving speed of the spray gun is 20 mm/s-25 mm/s, and the spraying distance is 130 mm-140 mm.
7. The method for preparing the microbial corrosion resistant TiN/Ti ceramic-metal composite coating according to claim 6, wherein the arc voltage is 130V, the arc current is 750A, the nitrogen flow is 24L/min, the nitrogen pressure is 1.3MPa, the hydrogen flow is 13L/min, the hydrogen pressure is 0.7MPa, the moving speed of the spray gun is 22mm/s, and the spraying distance is 135 mm.
8. The method for preparing the microbial corrosion resistant TiN/Ti ceramic metal composite coating according to claim 1, wherein in the third step, the surface of the pipeline steel is subjected to rust removal, scale removal and oil removal cleaning treatment in sequence before spraying.
9. The method for preparing the microbial corrosion resistant TiN/Ti ceramic metal composite coating layer according to the claim 1, wherein the thickness of the microbial corrosion resistant TiN/Ti ceramic metal composite coating layer in the step three is 500 μm to 800 μm.
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|---|---|---|---|---|
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008069377A (en) * | 2006-09-12 | 2008-03-27 | National Institute For Materials Science | Method for forming cermet coating film and cermet coated member obtained thereby |
| CN102448720A (en) * | 2009-04-16 | 2012-05-09 | 雪佛龙美国公司 | Structural components for oil, gas, exploration, refining and petrochemical applications |
| CN108424147A (en) * | 2018-02-12 | 2018-08-21 | 吉林长玉特陶新材料技术股份有限公司 | A kind of method that Rapid Nitriding produces titanium carbonitride, nitrogenizes titanium valve |
| CN109940163A (en) * | 2019-05-15 | 2019-06-28 | 四川大学 | A kind of post-processing approach for strengthening 3D printing metal component surface abrasion resistance |
-
2019
- 2019-10-28 CN CN201911028298.6A patent/CN110819934A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008069377A (en) * | 2006-09-12 | 2008-03-27 | National Institute For Materials Science | Method for forming cermet coating film and cermet coated member obtained thereby |
| CN102448720A (en) * | 2009-04-16 | 2012-05-09 | 雪佛龙美国公司 | Structural components for oil, gas, exploration, refining and petrochemical applications |
| CN108424147A (en) * | 2018-02-12 | 2018-08-21 | 吉林长玉特陶新材料技术股份有限公司 | A kind of method that Rapid Nitriding produces titanium carbonitride, nitrogenizes titanium valve |
| CN109940163A (en) * | 2019-05-15 | 2019-06-28 | 四川大学 | A kind of post-processing approach for strengthening 3D printing metal component surface abrasion resistance |
Non-Patent Citations (2)
| Title |
|---|
| 罗湘成: "《中国基础水、水资料与水处理实务》", 28 February 1998, 中国环境科学出版社 * |
| 陈沪 等: "《激光熔覆与喷涂焊接实训教程》", 30 September 2017, 华南理工大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342487A (en) * | 2020-10-15 | 2021-02-09 | 西安特种设备检验检测院 | Microbial corrosion resistant treatment method for pipeline steel surface |
| CN112342487B (en) * | 2020-10-15 | 2021-12-03 | 西安特种设备检验检测院 | Microbial corrosion resistant treatment method for pipeline steel surface |
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