CN108817393B - Alkali-resistant aluminum alloy composite material and preparation method thereof - Google Patents
Alkali-resistant aluminum alloy composite material and preparation method thereof Download PDFInfo
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 61
- 239000003513 alkali Substances 0.000 title claims abstract description 36
- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 47
- 239000002243 precursor Substances 0.000 claims abstract description 44
- 239000002245 particle Substances 0.000 claims abstract description 42
- 239000002585 base Substances 0.000 claims abstract description 33
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 28
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 230000032683 aging Effects 0.000 claims abstract description 18
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 239000006104 solid solution Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 58
- 229910052782 aluminium Inorganic materials 0.000 claims description 31
- 239000000243 solution Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 25
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- 239000007787 solid Substances 0.000 claims description 22
- 238000000151 deposition Methods 0.000 claims description 18
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- 238000001816 cooling Methods 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052735 hafnium Inorganic materials 0.000 claims description 5
- 239000001307 helium Substances 0.000 claims description 5
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- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
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- B22—CASTING; POWDER METALLURGY
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- 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
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- 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
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1042—Alloys containing non-metals starting from a melt by atomising
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0089—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- B22—CASTING; POWDER METALLURGY
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- 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
- B22F3/24—After-treatment of workpieces or articles
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Abstract
The invention provides an alkali-resistant aluminum alloy composite material which comprises a base material and a precursor, wherein the base material is an aluminum alloy, the mass fraction of each element in the aluminum alloy is 3.8-4.9% of Cu, 1.2-1.8% of Mg, 0.30-0.90% of Mn, and the balance of Al. The precursor is Ni60Nb20Ti12.5Hf7.5Calcium carbonate CaCO coated with metal glass alloy3And the precursor accounts for 20-30% of the base material by mass, and the particle size of the precursor is 50-100 mu m. The preparation method comprises the following steps: preparing a precursor, preparing a base material, preparing a casting blank, carrying out extrusion forming, solid solution and aging treatment.
Description
Technical Field
The invention belongs to the field of materials, and particularly relates to an alkali-resistant aluminum alloy composite material and a manufacturing method thereof.
Background
Compared with a steel drilling pipe, the aluminum alloy drilling pipe has the advantages of light weight, fatigue resistance, high flexibility, corrosion resistance, cold resistance, high critical speed and the like. At present, more than 20 countries begin to develop and apply aluminum alloy drill pipes. China is a country with abundant marine oil resources, offshore oil drilling develops rapidly in recent years, and the development of aluminum alloy drilling pipes in China is very promising. Particularly, oil gas in deep sea and continental shelf in vast sea areas such as east sea, yellow sea, south sea and the like of China is very abundant, and the adoption of aluminum alloy drilling pipes is necessary. However, in an alkaline environment, an oxide film on the surface of the aluminum alloy is continuously dissolved and generates self-corrosion accompanied with a hydrogen evolution process, and under the action of the medium flow velocity, the drilling fluid flows at a high speed to scour corrosion products, so that the retardation of corrosion product deposition on the corrosion reaction is weakened, and the corrosion of the aluminum alloy material is aggravated. Therefore, in order to solve the above problems, it is necessary to improve the alkali corrosion resistance of the aluminum alloy drill rod material.
And sequentially carrying out three times of hole sealing treatment on the aluminum and aluminum alloy workpieces subjected to anodic oxidation treatment, wherein the hole sealing for the first time adopts a cold sealing method, a hot water sealing method, an organic acid hole sealing method or a rare earth metal salt hole sealing method, the hole sealing for the second time adopts a passivation or vitrification method, and the hole sealing for the third time adopts a medium-high temperature heat hole sealing method or a boiling water sealing method. The hole sealing method provided by the invention breaks through the existing single-step or two-step sealing.
The existing known aluminum-based composite material with alkali corrosion resistance is mainly prepared by carrying out hole sealing treatment on a porous oxide film on the surface of an aluminum alloy to improve the alkali corrosion resistance, and adopting methods such as cold sealing, hot water sealing, organic acid hole sealing or rare earth metal salt hole sealing, passivation or vitrification. The search of the prior art documents shows that the Chinese patent publication number is CN106119924U, and the publication date is: 2016.06.21, the invention relates to a hole sealing method capable of improving the alkali resistance and corrosion resistance of an anodic oxide film of aluminum and aluminum alloy, which comprises the steps of sequentially carrying out three times of hole sealing treatment on an aluminum and aluminum alloy workpiece after anodic oxidation treatment, utilizing a multi-step process to give full play to the advantages of hole sealing in each step, introducing a passivation process as middle hole sealing, and being capable of obviously improving the corrosion resistance and continuous acid and alkali resistance and having stronger alkali resistance. The method has the defects that the surface oxide film of the aluminum alloy is easy to wear, and the alkali corrosion resistance of a new base material exposed after the wear is weakened. The Chinese patent publication No. CN 104233428A, published as 2014.09.26, is named as a method for improving the alkali resistance of an anodic oxide film on the surface of an aluminum or aluminum alloy material, the method comprises the steps of polishing and polishing the aluminum or aluminum alloy material, then placing the aluminum or aluminum alloy material in an electrolyte containing organic acid, inorganic acid and soluble oxysalt for anodic oxidation treatment, sealing the oxide film obtained by the anodic oxidation treatment, and then forming a silane film layer on the surface of the sealed aluminum or aluminum alloy material to improve the alkali resistance of the anodic oxide film on the surface of the aluminum or aluminum alloy material. The defects are that the aluminum alloy material oxide film adopts a silane film layer for hole sealing, and the high polymer material with poor wear resistance and an alkali-resistant corrosion layer is easy to damage under the action of friction force.
Disclosure of Invention
Aiming at the defects, the invention starts from improving the essence of the aluminum alloy material, takes the aluminum alloy as a base material and uses Ni60Nb20Ti12.5Hf7.5Calcium carbonate CaCO coated with metal glass alloy3The particles are added into the aluminum alloy, and the aluminum matrix composite material for the drill rod with alkali corrosion resistance is prepared by adopting a spray deposition additive manufacturing and hot extrusion process. Added Ni60Nb20Ti12.5Hf7.5Metallic glass alloy and calcium carbonate CaCO3The particles have ultra-high corrosion resistance and the corrosion rate is three orders of magnitude lower than that of the common Ni-based alloy. And has good interface wettability and interface compatibility with the aluminum alloy matrix. Therefore, the aluminum-based composite material for the drill rod, prepared by the method, has good alkali corrosion resistance, and has important significance for oil and gas exploitation in an alkali environment.
The invention aims to overcome the defects of the prior art and improve the alkali corrosion resistance of the aluminum alloy by changing the essence of the aluminum alloy material. The invention provides an alkali corrosion resistant aluminum matrix composite for a drill rod and an additive manufacturing method.
The technical scheme adopted for realizing the technical problem of the invention is as follows: firstly, preparing precursor Ni by adopting a spray deposition method60Nb20Ti12.5Hf7.5Calcium carbonate CaCO coated with metal glass alloy3And (3) granules. And secondly, taking the aluminum alloy as a base material, and synchronously atomizing and depositing the base material metal liquid and the precursor on a substrate under the action of high-pressure argon to obtain an aluminum-based composite material casting blank. And then carrying out hot extrusion densification treatment on the casting blank to extrude the casting blank into a pipe. And finally, carrying out secondary solution aging heat treatment on the pipe to obtain the alkali corrosion resistant aluminum-based composite material for the drill rod.
The invention provides an alkali-resistant aluminum alloy composite material which is characterized by comprising a base material and a precursor, wherein the base material is aluminum alloy, and the precursor is Ni60Nb20Ti12.5Hf7.5Calcium carbonate CaCO coated with metal glass alloy3And (3) granules.
Preferably, the mass percentage of the precursor in the invention is 20-30% of that of the base material.
The particle size of the precursor is preferably 50-100 mu m.
The aluminum alloy comprises, by mass, 3.8-4.9% of Cu, 1.2-1.8% of Mg, 0.30-0.90% of Mn, and the balance of Al.
The invention provides a preparation method of a composite material, which comprises the following steps:
1) preparing a precursor: preparing Ni, Nb, Ti and Hf metals according to atomic ratio, placing the materials in a crucible smelting furnace, heating the materials to be molten under the protection of argon, then filling the molten liquid into a molten metal bag in a jet deposition machine, and simultaneously adding CaCO with the grain diameter of 10 mu m3Filling into a solid fluidization conveyor; respectively introducing high-pressure helium gas of 2-3 MPa into the molten metal ladle and the solid fluidized conveyor to allow Ni to be in contact with the molten metal ladle60Nb20Ti12.5Hf7.5Molten metalAnd CaCO3The particles are synchronously atomized to form liquid drops mixed with solid and liquid, the liquid drops are rapidly solidified under the action of a cooler at the lower end of the atomizing chamber, precursor particles are obtained by deposition on the substrate, the particle size is 50-100 mu m, and the deposition distance is 800-1000 mm.
2) Preparing a base material: preparing Al, Cu, Mn and Mg metal blocks according to mass fraction to obtain a base material raw material, and adding the base material raw material into a crucible smelting furnace for melting to obtain an aluminum alloy liquid;
3) preparing a casting blank: fully stirring the precursor particles obtained in the step 1) by ultrasonic oscillation and filling the precursor particles into a solid particle fluidization conveyor of a jet deposition device; injecting the aluminum alloy liquid obtained in the step 2) into a metal liquid bag; simultaneously introducing argon gas with the air pressure of 0.7-0.85 Mpa into the conveyor and the metal liquid bag to atomize the aluminum alloy liquid and the precursor simultaneously, and depositing the aluminum alloy liquid and the precursor on the substrate to obtain a casting blank;
4) extrusion molding: preheating the casting blank obtained in the step 3) to 450-500 ℃ in a hot extrusion machine, preserving the heat for 30min, and then carrying out hot extrusion molding under the conditions that the temperature is 520 ℃, the extrusion ratio is 3-5, and the extrusion speed is 1-3 mm/s, so as to obtain an extruded pipe;
5) solid solution and aging treatment: carrying out primary solution treatment on the extruded pipe obtained in the step 4), wherein the solution temperature is 470 +/-5 ℃, and the heat preservation time is 2 h; performing secondary solution treatment, wherein the solution temperature is 490 +/-5 ℃, the heat preservation time is 1h, the water cooling (room temperature) is performed, and the transfer time is less than or equal to 12 s; and (4) carrying out artificial aging treatment on the pipe subjected to the second-stage solution treatment at the aging temperature of 190 +/-5 ℃ for 12 h.
The invention also provides application of the composite material in preparing a drill rod.
The invention has the beneficial effects that:
the invention takes aluminum alloy as a base material and Ni60Nb20Ti12.5Hf7.5Calcium carbonate CaCO coated with metal glass alloy3The particles are added into the aluminum alloy, and the aluminum matrix composite material for the drill rod with alkali corrosion resistance is prepared by adopting a spray deposition additive manufacturing and hot extrusion process. Added Ni60Nb20Ti12.5Hf7.5Metallic glass alloy and calcium carbonate CaCO3The particles have ultra-high corrosion resistanceThe corrosion rate is three orders of magnitude lower than that of conventional Ni-based alloys. And has good interface wettability and interface compatibility with the aluminum alloy matrix. The aluminum-based composite material for the drill rod overcomes the main defects of thin alkali corrosion resistant layer, short service life and large waste liquid pollution in the prior art, has simple process, convenient operation and less material loss, can be used for large-scale production of the alkali corrosion resistant aluminum-based composite material for the drill rod and the preparation method thereof, and has important significance for oil and gas exploitation in an alkali environment.
Drawings
FIG. 1: the invention relates to a process flow chart for preparing an aluminum-based composite material for a drill rod with alkali corrosion resistance;
FIG. 2: the working principle of the solid-liquid synchronous atomization device is shown schematically; in the figure: 1-solid particles, 2-molten metal, 3-solid particle fluidized conveyor, 4-molten metal bag, 5-closing valve, 6-sealing plug, 7-atomizer and 8-cooler
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited to the examples.
Example 1: an alkali corrosion resistant aluminum matrix composite for a drill rod and an additive manufacturing method thereof comprise the following specific steps:
1) preparing a precursor: preparing Ni, Nb, Ti and Hf metals according to atomic ratio, placing the materials in a crucible smelting furnace, heating the materials to be molten under the protection of argon, then filling the molten liquid into a molten metal bag in a jet deposition machine, and simultaneously adding CaCO with the grain diameter of 10 mu m3Filling into a solid fluidization conveyor; respectively introducing high-pressure helium gas of 3MPa into the molten metal ladle and the solid fluidized conveyor to allow Ni to be in contact with the molten metal ladle60Nb20Ti12.5Hf7.5Metal liquid and CaCO3The particles are synchronously atomized to form liquid drops mixed with solid and liquid, the liquid drops are rapidly solidified under the action of a cooler at the lower end of the atomizing chamber, precursor particles are obtained by deposition on the substrate, the particle size is 50-100 mu m, and the deposition distance is 800-1000 mm.
2) Preparing a base material: preparing a base material raw material by using metal blocks of Al, Cu, Mn and Mg according to the mass fractions of Cu 3.8%, Mg 1.4% and Mn 0.6%, and the balance of Al, and adding the base material raw material into a crucible smelting furnace for melting to obtain an aluminum alloy liquid;
3) preparing a casting blank: fully stirring the precursor particles obtained in the step 1) by ultrasonic oscillation, and adding the precursor particles into a solid particle fluidization conveyor of a jet deposition device according to the mass percent of the base material of 20%; injecting the aluminum alloy liquid obtained in the step 2) into a metal liquid bag; simultaneously introducing argon gas with the air pressure of 0.7-0.85 Mpa into the conveyor and the metal liquid bag to atomize the aluminum alloy liquid and the precursor simultaneously, and depositing the aluminum alloy liquid and the precursor on the substrate to obtain a casting blank;
4) extrusion molding: preheating the casting blank obtained in the step 3) to 500 ℃ in a hot extrusion machine, preserving the heat for 30min, and then carrying out hot extrusion molding under the conditions that the temperature is 520 ℃, the extrusion ratio is 5, and the extrusion speed is 3mm/s to obtain an extruded pipe;
5) solid solution and aging treatment: carrying out primary solution treatment on the extruded pipe obtained in the step 4), wherein the solution temperature is 470 +/-5 ℃, and the heat preservation time is 2 h; performing secondary solution treatment, wherein the solution temperature is 490 +/-5 ℃, the heat preservation time is 1h, the water cooling (room temperature) is performed, and the transfer time is less than or equal to 12 s; and (4) carrying out artificial aging treatment on the pipe subjected to the second-stage solution treatment at the aging temperature of 190 +/-5 ℃ for 12 h.
Example 2: an alkali corrosion resistant aluminum matrix composite for a drill rod and an additive manufacturing method thereof comprise the following specific steps:
1) preparing a precursor: preparing Ni, Nb, Ti and Hf metals according to atomic ratio, placing the materials in a crucible smelting furnace, heating the materials to be molten under the protection of argon, then filling the molten liquid into a molten metal bag in a jet deposition machine, and simultaneously adding CaCO with the grain diameter of 10 mu m3Filling into a solid fluidization conveyor; respectively introducing high-pressure helium gas of 3MPa into the molten metal ladle and the solid fluidized conveyor to allow Ni to be in contact with the molten metal ladle60Nb20Ti12.5Hf7.5Metal liquid and CaCO3The particles are synchronously atomized to form liquid drops mixed with solid and liquid, the liquid drops are rapidly solidified under the action of a cooler at the lower end of the atomizing chamber, precursor particles are obtained by deposition on the substrate, the particle size is 50-100 mu m, and the deposition distance is 800-1000 mm.
2) Preparing a base material: preparing a base material raw material by using metal blocks of Al, Cu, Mn and Mg according to the mass fractions of Cu 3.8%, Mg 1.4% and Mn 0.6%, and the balance of Al, and adding the base material raw material into a crucible smelting furnace for melting to obtain an aluminum alloy liquid;
3) preparing a casting blank: fully stirring the precursor particles obtained in the step 1) by ultrasonic oscillation, and filling the precursor particles into a solid particle fluidization conveyor of a jet deposition device according to the mass percent of 25% of the base material; injecting the aluminum alloy liquid obtained in the step 2) into a metal liquid bag; simultaneously introducing argon gas with the air pressure of 0.7-0.85 Mpa into the conveyor and the metal liquid bag to atomize the aluminum alloy liquid and the precursor simultaneously, and depositing the aluminum alloy liquid and the precursor on the substrate to obtain a casting blank;
4) extrusion molding: preheating the casting blank obtained in the step 3) to 500 ℃ in a hot extrusion machine, preserving the heat for 30min, and then carrying out hot extrusion molding under the conditions that the temperature is 520 ℃, the extrusion ratio is 5, and the extrusion speed is 3mm/s to obtain an extruded pipe;
5) solid solution and aging treatment: carrying out primary solution treatment on the extruded pipe obtained in the step 4), wherein the solution temperature is 470 +/-5 ℃, and the heat preservation time is 2 h; performing secondary solution treatment, wherein the solution temperature is 490 +/-5 ℃, the heat preservation time is 1h, the water cooling (room temperature) is performed, and the transfer time is less than or equal to 12 s; and (4) carrying out artificial aging treatment on the pipe subjected to the second-stage solution treatment at the aging temperature of 190 +/-5 ℃ for 12 h.
Example 3: an alkali corrosion resistant aluminum matrix composite for a drill rod and an additive manufacturing method thereof comprise the following specific steps:
1) preparing a precursor: preparing Ni, Nb, Ti and Hf metals according to atomic ratio, placing the materials in a crucible smelting furnace, heating the materials to be molten under the protection of argon, then filling the molten liquid into a molten metal bag in a jet deposition machine, and simultaneously adding CaCO with the grain diameter of 10 mu m3Filling into a solid fluidization conveyor; respectively introducing high-pressure helium gas of 3MPa into the molten metal ladle and the solid fluidized conveyor to allow Ni to be in contact with the molten metal ladle60Nb20Ti12.5Hf7.5Metal liquid and CaCO3The particles are synchronously atomized to form liquid drops mixed with solid and liquid, the liquid drops are rapidly solidified under the action of a cooler at the lower end of the atomizing chamber, precursor particles are obtained by deposition on the substrate, the particle size is 50-100 mu m, and the deposition distance is 800-1000 mm.
2) Preparing a base material: preparing a base material raw material by using metal blocks of Al, Cu, Mn and Mg according to the mass fractions of Cu 3.8%, Mg 1.4% and Mn 0.6%, and the balance of Al, and adding the base material raw material into a crucible smelting furnace for melting to obtain an aluminum alloy liquid;
3) preparing a casting blank: fully stirring the precursor particles obtained in the step 1) by ultrasonic oscillation, and adding the precursor particles into a solid particle fluidization conveyor of a jet deposition device according to the mass percent of the base material; injecting the aluminum alloy liquid obtained in the step 2) into a metal liquid bag; simultaneously introducing argon gas with the air pressure of 0.7-0.85 Mpa into the conveyor and the metal liquid bag to atomize the aluminum alloy liquid and the precursor simultaneously, and depositing the aluminum alloy liquid and the precursor on the substrate to obtain a casting blank;
4) extrusion molding: preheating the casting blank obtained in the step 3) to 500 ℃ in a hot extrusion machine, preserving the heat for 30min, and then carrying out hot extrusion molding under the conditions that the temperature is 520 ℃, the extrusion ratio is 5, and the extrusion speed is 3mm/s to obtain an extruded pipe;
5) solid solution and aging treatment: carrying out primary solution treatment on the extruded pipe obtained in the step 4), wherein the solution temperature is 470 +/-5 ℃, and the heat preservation time is 2 h; performing secondary solution treatment, wherein the solution temperature is 490 +/-5 ℃, the heat preservation time is 1h, the water cooling (room temperature) is performed, and the transfer time is less than or equal to 12 s; and (4) carrying out artificial aging treatment on the pipe subjected to the second-stage solution treatment at the aging temperature of 190 +/-5 ℃ for 12 h.
The results of the alkali resistance test performed on the aluminum-based composites of examples 1 to 3 described above are shown in the following table.
| Examples | PH13.5 | Soaking time |
| Example 1 | Without change | 30min |
| Example 2 | Without change | 60min |
| Example 3 | Without change | 120min |
The aluminum-based composite material for the alkali corrosion resistant drill rod prepared by the 3 embodiments and the multiple experiments and the additive manufacturing method thereof take aluminum alloy as a base material and Ni60Nb20Ti12.5Hf7.5Calcium carbonate CaCO coated with metal glass alloy3The particles are added into the aluminum alloy, and the aluminum matrix composite material for the drill rod with alkali corrosion resistance is prepared by adopting a spray deposition additive manufacturing and hot extrusion process. Added Ni60Nb20Ti12.5Hf7.5Metallic glass alloy and calcium carbonate CaCO3The particles have ultra-high corrosion resistance and the corrosion rate is three orders of magnitude lower than that of the common Ni-based alloy. And has good interface wettability and interface compatibility with the aluminum alloy matrix. The aluminum-based composite material for the drill rod overcomes the main defects of thin alkali corrosion resistant layer, short service life and large waste liquid pollution in the prior art, has simple process, convenient operation and less material loss, can be used for large-scale production of the alkali corrosion resistant aluminum-based composite material for the drill rod and the preparation method thereof, and has important significance for oil and gas exploitation in an alkali environment.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. Alkali-resistant aluminumThe alloy composite material is characterized in that the composite material is prepared by preparing a sediment body from a base material and a precursor, and then carrying out extrusion forming, solid solution and aging treatment on the sediment body, wherein the base material is an aluminum alloy, and the precursor is Ni60Nb20Ti12.5Hf7.5Calcium carbonate particles coated with a metallic glass alloy.
2. The composite material according to claim 1, wherein the precursor accounts for 20-30% by mass of the substrate.
3. The composite material according to claim 1, wherein the particle size of the precursor is 50 to 100 μm.
4. The composite material of claim 1, wherein the aluminum alloy comprises, by mass, 3.8 to 4.9% of each element, 1.2 to 1.8% of Mg, 0.30 to 0.90% of Mn, and the balance Al.
5. A method for the preparation of a composite material according to any one of claims 1 to 4, characterized in that it comprises the following steps:
1) preparing a precursor: preparing Ni, Nb, Ti and Hf metals according to atomic ratio, placing the materials in a crucible smelting furnace, heating the materials to be molten under the protection of argon, then filling the molten liquid into a molten metal bag in a jet deposition machine, and simultaneously adding CaCO with the grain diameter of 10 mu m3Filling into a solid fluidization conveyor; respectively introducing high-pressure helium gas of 2-3 MPa into the molten metal ladle and the solid fluidized conveyor to allow Ni to be in contact with the molten metal ladle60Nb20Ti12.5Hf7.5Metal liquid and CaCO3Synchronously atomizing particles to form liquid drops mixed with solid and liquid, rapidly solidifying the liquid drops under the action of a cooler at the lower end of an atomizing chamber, and depositing the liquid drops on a substrate to obtain precursor particles, wherein the particle size is 50-100 mu m, and the deposition distance is 800-1000 mm;
2) preparing a base material: preparing Al, Cu, Mn and Mg metal blocks according to mass fraction to obtain a base material raw material, and adding the base material raw material into a crucible smelting furnace for melting to obtain an aluminum alloy liquid;
3) preparation of a sediment body: fully stirring the precursor particles obtained in the step 1) by ultrasonic oscillation and filling the precursor particles into a solid particle fluidization conveyor of a jet deposition device; injecting the aluminum alloy liquid obtained in the step 2) into a metal liquid bag; simultaneously introducing argon gas with the air pressure of 0.7-0.85 Mpa into the conveyor and the metal liquid bag to atomize the aluminum alloy liquid and the precursor simultaneously, and depositing on the substrate to obtain a deposition body;
4) extrusion molding: preheating the sediment obtained in the step 3) to 450-500 ℃ in a hot extrusion machine, preserving heat for 30min, and performing hot extrusion molding under the conditions that the temperature is 520 ℃, the extrusion ratio is 3-5, and the extrusion speed is 1-3 mm/s to obtain an extruded pipe;
5) solid solution and aging treatment: carrying out primary solution treatment on the extruded pipe obtained in the step 4), wherein the solution temperature is 470 +/-5 ℃, and the heat preservation time is 2 h; performing secondary solution treatment, wherein the solution temperature is 490 +/-5 ℃, the heat preservation time is 1h, water cooling is performed to room temperature, and the quenching transfer time is less than or equal to 12 s; and (4) carrying out artificial aging treatment on the pipe subjected to the second-stage solution treatment at the aging temperature of 190 +/-5 ℃ for 12 h.
6. Use of a composite material according to any one of claims 1-4 in the manufacture of a drill rod.
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