CN111349832A - Aluminum-based composite material and preparation method thereof - Google Patents
Aluminum-based composite material and preparation method thereof Download PDFInfo
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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
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
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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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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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
- C22C32/001—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 only oxides
- C22C32/0015—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 only oxides with only single oxides as main non-metallic constituents
- C22C32/0036—Matrix based on Al, Mg, Be or alloys thereof
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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
- C22C32/0047—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 carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—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 carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
- C22C32/0063—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 carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
Abstract
The invention provides an aluminum matrix composite material and a preparation method thereof. The aluminum-based composite material comprises an aluminum alloy substrate, graphene and a ceramic material. In particular, the amount of the graphene is 0.5 to 2 percent based on 100 percent of the mass of the aluminum matrix composite; the amount of the ceramic material is 5% to 20%, and the balance is the aluminum alloy base material. The aluminum matrix composite material has good erosion resistance, high strength and good degradability or corrosivity.
Description
Technical Field
The invention provides an aluminum matrix composite material and a preparation method thereof.
Background
The sliding sleeve type staged fracturing technology is an important oil reservoir transformation technology and is widely applied to the reservoir transformation construction of unconventional oil and gas resources such as shale gas, coal bed gas and the like. The technology is realized by tools such as a hydraulic type opening sliding sleeve, a ball-throwing type opening sliding sleeve, a packer, a pressure-building ball and the like, wherein the ball-throwing type opening sliding sleeve device is one of core devices in the staged fracturing technology, the working principle of the sliding sleeve is that the pressure-building ball is thrown in a wellhead, when the pressure-building ball reaches the position of the sliding sleeve, the ball seat in the sliding sleeve forms sealing, pressure building is realized, a shear pin is cut off when the pressure reaches a certain value, and a fracturing hole groove on the outer cylinder of the sliding sleeve is opened to build a fracturing channel. The patent publication No. CN201520100388.2 discloses a ball seat applied to a staged fracturing ball-throwing sliding sleeve of an oil-gas well, which mainly adopts Mg-Zn-Cu alloy as an electrolytic metal material, and a film layer of magnesium oxide or zinc oxide is coated on the outer surface of the ball seat. The ball seat in the patent document is influenced by the discharge amount of sand-containing liquid in fracturing construction, and the surface coating is easy to prevent a base material from contacting with fluid in a well, so that the corrosion rate of the base is greatly reduced. Meanwhile, the grade difference between ball seats and the grade difference between the pressure building ball and the ball seat cannot be too small due to the influence of the strength of the base material, so that the number of staged fracturing stages is limited.
Therefore, at present, the requirements of large displacement, high sand ratio and long-time fracturing construction during unconventional fracturing can be completely met, the segmented requirements of small grade difference and multiple stages can be realized, the ball seat which can be quickly and automatically corroded and decomposed in a specific underground fluid environment can be used for drilling the ball seat without drilling, and the sliding sleeve segmented fracturing construction reliability and efficiency are improved in a matched mode.
Disclosure of Invention
The invention provides an aluminum-based composite material which comprises an aluminum alloy substrate, graphene and a ceramic material.
In a specific embodiment, the graphene is 0.5 to 2 percent based on 100 percent of the mass of the aluminum matrix composite; the amount of the ceramic material is 5% to 20%, and the balance is the aluminum alloy base material.
In a particular embodiment, the aluminum alloy substrate includes copper, magnesium, zinc, zirconium, and aluminum.
In a specific embodiment, the copper is 2% to 2.6%, the magnesium is 1.9% to 2.6%, the zinc is 5.7% to 6.7%, the zirconium is 0.08% to 0.15%, and the balance is the aluminum, based on 100% by mass of the aluminum alloy substrate.
In one embodiment, the ceramic material is selected from Al2O3And/or SiC.
The second invention provides a method for preparing the aluminum matrix composite material, which comprises the following steps:
1) mixing graphene powder with a first solvent, and performing ultrasonic treatment to obtain a first dispersion liquid;
2) mixing the aluminum alloy base material powder and the ceramic material powder with a second solvent together, and performing ultrasonic treatment to obtain a second dispersion liquid;
3) mixing the first dispersion liquid and the second dispersion liquid, and then mechanically stirring to obtain a third dispersion liquid;
4) drying the third dispersion liquid in a vacuum drying oven to obtain mixed powder;
5) putting the mixed powder into a sheath, and then carrying out hot isostatic pressing treatment to obtain a bulk material;
6) and removing the sheath of the outer layer of the block material to obtain the aluminum-based composite material.
In a specific embodiment, the first solvent and the second solvent independently comprise ethanol and/or water.
In a specific embodiment, the time of the sonication in step 1) and the time of the sonication in step 2) are independently 20 to 50 minutes.
In a particular embodiment, the power of the ultrasound of step 1) is 800 to 1200W, for example 1000W.
In a particular embodiment, the ultrasound of step 1) has a frequency of 15 to 30Hz, for example 20 Hz.
In a particular embodiment, the power of the ultrasound of step 2) is 1800 to 2200W, for example 2000W.
In a particular embodiment, the ultrasound of step 2) has a frequency of 15 to 30Hz, for example 20 Hz.
In one embodiment, the mechanical agitation of step 3) is for a time period of 40 to 90 minutes.
In one embodiment, the mechanical agitation speed of step 3) is from 200 to 600 rpm.
In one embodiment, the vacuum in step 4) is 0.5 × 10-1To 1.5 × 10-1Pa, at a temperature of between 60 and 80 ℃ for a time of between 20 and 30 hours.
In one embodiment, in the step 5), after the mixed powder is filled into the sheath, the sheath is vacuumized to a vacuum degree of 0.5 × 10-1To 1.5 × 10-1Pa, and then at a temperature of from 360 to 400 ℃ for from 1.5 to 3 hours, then cooled, and the capsule is subsequently sealed. The capsule can be closed, for example, by welding.
In a particular embodiment, in step 5), the hot isostatic pressing is a treatment at 400 to 500 ℃ at 130 to 150MPa for 1.5 to 3 hours.
In a specific embodiment, the graphene powder is present in the first dispersion in an amount of 1% to 5% by mass.
In a specific embodiment, the total mass content of the aluminum alloy base material powder and the ceramic material powder in the second dispersion liquid is 10% to 20%.
In a specific embodiment, the graphene powder has a particle size of 20 to 40 micrometers.
In a specific embodiment, the aluminum alloy base material powder has a particle size of 80 to 120 micrometers.
In one embodiment, the ceramic material powder has a particle size of 40 to 80 microns.
The invention has the beneficial effects that:
(1) the aluminum matrix composite material has good erosion resistance, and after the aluminum matrix composite material is eroded for 24 hours by using liquid (the grain size of sand is 20-40 meshes) with the sand content of 10% -30% in mass at the flow speed of 30-40m/s, the mass of the aluminum matrix composite material is only lost by 4.89% at the lowest;
(2) the aluminum-based composite material has higher material strength, and the material can bear 450MPa when being processed into a ball forming seat;
(3) the aluminum-based composite material has good degradability or corrosivity under the condition of an acid medium, and the corrosion dissolution rate can reach 6.5mg/cm under the condition of 0.5% HCl solution2H is used as the reference value. The ball seat made of the aluminum-based composite material can be completely degraded within 5 to 10 days.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be purely exemplary of the invention and are not to be construed as limiting the invention in any way.
The materials and reagents used in the following examples are commercially available without specific reference.
Example 1
Aluminum alloy base material powder composition: based on the mass of the aluminum alloy base material as 100%, the aluminum alloy base material comprises 2.3% of copper, 2.3% of magnesium, 6.2% of zinc, 0.11% of zirconium and the balance of aluminum.
Preparing the aluminum matrix composite material:
1) mixing 10g of graphene powder with the particle size of 20 microns and 190g of absolute ethyl alcohol, and carrying out ultrasonic treatment for 20 minutes at the frequency of 20Hz under the power of 1000W to obtain a first dispersion liquid;
2) mixing 1890g of aluminum alloy base material powder with the particle size of 80 microns, 100g of SiC ceramic material powder with the particle size of 40 microns and 7960g of absolute ethyl alcohol together, and performing ultrasonic treatment for 20 minutes at the frequency of 20Hz under the power of 2000W to obtain a second dispersion liquid;
3) mixing the first dispersion liquid and the second dispersion liquid, and then mechanically stirring at a speed of 200rpm for 40 minutes to obtain a third dispersion liquid;
4) drying the third dispersion liquid in a vacuum drying oven to obtain mixed powder, wherein the vacuum degree is 1 × 10-1Pa, setting the temperature at 60 ℃, and carrying out drying treatment for 20 hours;
5) filling the mixed powder into a sheath, and vacuumizing to 1 × 10-1Pa, setting the temperature to 360 ℃, preserving the heat for 1.5 hours, cooling to room temperature, and welding and sealing the sheath; then carrying out hot isostatic pressing treatment for 1.5 hours at 400 ℃/130MPa to obtain a bulk material;
6) and removing the sheath material on the outer layer of the block material by machining to obtain the aluminum-based composite material.
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
And (3) testing performance indexes:
erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 6 percent.
And (3) pressure measurement: the compression strength is 420MPa by adopting the test of GB/T7314 and 2017.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ is 4.5mg/cm2/h。
Example 2
Aluminum alloy base material powder composition: based on the mass of the aluminum alloy base material as 100%, the aluminum alloy base material comprises 2.3% of copper, 2.3% of magnesium, 6.2% of zinc, 0.11% of zirconium and the balance of aluminum.
Preparing the aluminum matrix composite material:
1) mixing 20g of graphene powder with the particle size of 30 microns and 780g of absolute ethyl alcohol, and carrying out ultrasonic treatment for 30 minutes at the frequency of 20Hz under the power of 1000W to obtain a first dispersion liquid;
2) 1780g of aluminum alloy base material powder with the grain size of 100 microns, 200g of SiC ceramic material powder with the grain size of 60 microns and 11220g of absolute ethyl alcohol are mixed together, and then ultrasonic treatment is carried out for 30 minutes at the power of 2000W and the frequency of 20Hz, so as to obtain second dispersion liquid;
3) mixing the first dispersion liquid and the second dispersion liquid, and then mechanically stirring at the speed of 300rpm for 40 minutes to obtain a third dispersion liquid;
4) drying the third dispersion liquid in a vacuum drying oven to obtain mixed powder, wherein the vacuum degree is 0.5 × 10-1Pa, setting the temperature at 70 ℃, and carrying out drying treatment for 20 hours;
5) filling the mixed powder into a sheath, and vacuumizing to 0.5 × 10-1Pa, setting the temperature to 380 ℃, preserving the heat for 2.5 hours, cooling to room temperature, and welding and sealing the sheath; then carrying out hot isostatic pressing treatment for 2 hours at 450 ℃/140MPa to obtain a bulk material;
6) and removing the sheath material on the outer layer of the block material by machining to obtain the aluminum-based composite material.
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
The performance index was measured as in example 1.
Erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 4.89 percent.
And (3) pressure measurement: the compressive strength was 450 MPa.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ is 6.5mg/cm2/h。
Example 3
Aluminum alloy base material powder composition: based on the mass of the aluminum alloy base material as 100%, the aluminum alloy base material comprises 2.3% of copper, 2.3% of magnesium, 6.2% of zinc, 0.11% of zirconium and the balance of aluminum.
Preparing the aluminum matrix composite material:
1) mixing 40g of graphene powder with the particle size of 40 microns and 3960g of absolute ethyl alcohol, and carrying out ultrasonic treatment for 50 minutes at the frequency of 20Hz under the power of 1500W to obtain a first dispersion liquid;
2) mixing 1560g of aluminum alloy base material powder with the particle size of 120 microns, 400g of SiC ceramic material powder with the particle size of 80 microns and 17640g of absolute ethyl alcohol together, and performing ultrasonic treatment for 50 minutes at the frequency of 20Hz under the power of 2500W to obtain a second dispersion liquid;
3) mixing the first dispersion liquid and the second dispersion liquid, and then mechanically stirring at a speed of 400rpm for 40 minutes to obtain a third dispersion liquid;
4) drying the third dispersion liquid in a vacuum drying oven to obtain mixed powder, wherein the vacuum degree is 5 × 10-1Pa, setting the temperature at 80 ℃, and carrying out drying treatment for 25 hours;
5) filling the mixed powder into a sheath, and vacuumizing to 1.5 × 10-1Pa, setting the temperature to 400 ℃, preserving the heat for 3 hours, cooling to room temperature, and welding and sealing the sheath; then carrying out hot isostatic pressing treatment for 3 hours at 500 ℃/150MPa to obtain a bulk material;
6) and removing the sheath material on the outer layer of the block material by machining to obtain the aluminum-based composite material.
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
The performance index was measured as in example 1.
Erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 6.8 percent.
And (3) pressure measurement: the compression strength is 430MPa by adopting the test of GB/T7314 and 2017.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ is 5.5mg/cm2/h。
Example 4
Aluminum alloy base material powder composition: the aluminum alloy base material comprises, by mass, 100% of copper 2%, magnesium 1.9%, zinc 5.7%, zirconium 0.08%, and the balance aluminum.
The aluminum matrix composite was prepared as in example 2.
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
The performance index was measured as in example 1.
Erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 7 percent.
And (3) pressure measurement: the compression strength is 422MPa by adopting the test of GB/T7314 and 2017.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ is 3.5mg/cm2/h。
Example 5
Aluminum alloy base material powder composition: based on the mass of the aluminum alloy base material as 100%, the aluminum alloy base material comprises 2.6% of copper, 2.6% of magnesium, 6.7% of zinc, 0.15% of zirconium and the balance of aluminum.
Preparation of aluminum matrix composite the aluminum matrix composite was prepared as in example 2.
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
The performance index was measured as in example 1.
Erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 6.5 percent.
And (3) pressure measurement: the compressive strength was 425 MPa.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ is 4mg/cm2/h。
Example 6
Aluminum alloy base material powder composition: based on the mass of the aluminum alloy base material as 100%, the aluminum alloy base material comprises 2.3% of copper, 2.3% of magnesium, 6.2% of zinc, 0.11% of zirconium and the balance of aluminum.
Preparation of aluminum matrix composite the aluminum matrix composite was prepared as in example 2. Wherein the ceramic material is Al2O3。
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
The performance index was measured as in example 1.
Erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 5.21 percent.
And (3) pressure measurement: the compression strength is 442MPa by adopting the GB/T7314 and 2017 standard test.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ was 5.83mg/cm2/h。
Comparative example 1
Aluminum alloy base material powder composition: based on the mass of the aluminum alloy base material as 100%, the aluminum alloy base material comprises 2.3% of copper, 2.3% of magnesium, 6.2% of zinc, 0.11% of zirconium and the balance of aluminum.
Preparing the aluminum matrix composite material:
1) mixing 4g of graphene powder with the particle size of 30 microns and 156g of absolute ethyl alcohol, and carrying out ultrasonic treatment for 30 minutes at the frequency of 20Hz under the power of 1000W to obtain a first dispersion liquid;
2) 1956g of aluminum alloy base material powder with the grain size of 100 microns, 40g of SiC ceramic material powder with the grain size of 60 microns and 11670g of absolute ethyl alcohol are mixed together, and then ultrasonic treatment is carried out for 30 minutes at the frequency of 20Hz under the power of 2000W, so as to obtain second dispersion liquid;
3) mixing the first dispersion liquid and the second dispersion liquid, and then mechanically stirring at the speed of 300rpm for 40 minutes to obtain a third dispersion liquid;
4) drying the third dispersion liquid in a vacuum drying oven to obtain mixed powder, wherein the vacuum degree is 0.5 × 10-1Pa, setting the temperature at 70 ℃, and carrying out drying treatment for 20 hours;
5) filling the mixed powder into a sheath, and vacuumizing to 0.5 × 10-1Pa, setting the temperature to 380 ℃, preserving the heat for 2.5 hours, cooling to room temperature, and welding and sealing the sheath; then carrying out hot isostatic pressing treatment for 2 hours at 450 ℃/140MPa to obtain a bulk material;
6) and removing the sheath material on the outer layer of the block material by machining to obtain the aluminum-based composite material.
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
The performance index was measured as in example 1.
Erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 9.98 percent.
And (3) pressure measurement: the compressive strength was 380 MPa.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ is 2.6mg/cm2/h。
Comparative example 2
Aluminum alloy base material powder composition: based on the mass of the aluminum alloy base material as 100%, the aluminum alloy base material comprises 2.3% of copper, 2.3% of magnesium, 6.2% of zinc, 0.11% of zirconium and the balance of aluminum.
Preparing the aluminum matrix composite material:
1) mixing 100g of graphene powder with the particle size of 30 micrometers and 3900g of absolute ethyl alcohol, and carrying out ultrasonic treatment for 30 minutes at the frequency of 20Hz and the power of 1000W to obtain a first dispersion liquid;
2) 1400g of aluminum alloy base material powder with the grain size of 100 microns, 500g of SiC ceramic material powder with the grain size of 60 microns and 10766g of absolute ethyl alcohol are mixed together, and then the mixture is subjected to ultrasonic treatment for 30 minutes at the power of 2000W and the frequency of 20Hz to obtain second dispersion liquid;
3) mixing the first dispersion liquid and the second dispersion liquid, and then mechanically stirring at the speed of 300rpm for 40 minutes to obtain a third dispersion liquid;
4) drying the third dispersion liquid in a vacuum drying oven to obtain mixed powder, wherein the vacuum degree is 0.5 × 10-1Pa, setting the temperature at 70 ℃, and carrying out drying treatment for 20 hours;
5) filling the mixed powder into a sheath, and vacuumizing to 0.5 × 10-1Pa, setting the temperature to 380 ℃, preserving the heat for 2.5 hours, cooling to room temperature, and welding and sealing the sheath; then carrying out hot isostatic pressing treatment for 2 hours at 450 ℃/140MPa to obtain a bulk material;
6) and removing the sheath material on the outer layer of the block material by machining to obtain the aluminum-based composite material.
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
The performance index was measured as in example 1.
Erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent of the mass is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 12.1 percent.
And (3) pressure measurement: the compressive strength was 398 MPa.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ is 3.38mg/cm2/h。
Comparative example 3
Preparing the aluminum matrix composite material:
1) mixing 20g of graphene powder with the particle size of 30 microns and 780g of absolute ethyl alcohol, and carrying out ultrasonic treatment for 30 minutes at the frequency of 20Hz under the power of 1000W to obtain a first dispersion liquid;
2) 1780g of aluminum alloy base material powder with the grain size of 100 microns, 200g of SiC ceramic material powder with the grain size of 60 microns and 11200g of absolute ethyl alcohol are mixed together, and then ultrasonic treatment is carried out for 30 minutes at the power of 2000W and the frequency of 20Hz, so as to obtain second dispersion liquid;
3) mixing the first dispersion liquid and the second dispersion liquid, and then mechanically stirring at the speed of 300rpm for 40 minutes to obtain a third dispersion liquid;
4) drying the third dispersion liquid in a vacuum drying oven to obtain mixed powder, wherein the vacuum degree is 1 × 10-1Pa, setting the temperature at 70 ℃, and carrying out drying treatment for 24 hours;
5) filling the mixed powder into a sheath, and vacuumizing to 1 × 10-2Pa, setting the temperature to 400 ℃, preserving the heat for 2 hours, cooling to room temperature, and welding and sealing the sheath; then carrying out hot isostatic pressing treatment for 2 hours at 460 ℃/150MPa to obtain a bulk material;
6) and removing the sheath material on the outer layer of the block material by machining to obtain the aluminum-based composite material.
Preparing a ball seat: machining the aluminum matrix composite into a ball seat shape.
The performance index was measured as in example 1.
Erosion resistance measurement: after the liquid (the grain size of sand is 20-40 meshes) with the sand content of 10-30 percent is used for erosion for 24 hours at the flow speed of 30-40m/s, the mass loss of the aluminum matrix composite material is 8.96 percent.
And (3) pressure measurement: the compressive strength was 411 MPa.
And (3) determining degradability: the dissolution rate in a 0.5% strength HCl solution at 93 ℃ was 2.75mg/cm2/h。
TABLE 1
| Examples | Erosion resistance loss | Pressure (MPa) | Degradability (mg/cm)2/h) |
| Example 1 | 6％ | 420 | 4.5 |
| Example 2 | 4.89％ | 450 | 6.5 |
| Example 3 | 6.8％ | 430 | 5.5 |
| Example 4 | 7％ | 422 | 3.5 |
| Example 5 | 6.5％ | 425 | 4 |
| Example 6 | 5.21％ | 442 | 5.83 |
| Comparative example 1 | 9.98％ | 380 | 2.6 |
| Comparative example 2 | 12.1％ | 398 | 3.38 |
| Comparative example 3 | 8.96％ | 411 | 2.75 |
From the data in table 1, it can be seen that the combined results of the three performance indicators of examples 1 to 6 are superior to the three performance indicators of comparative examples 1 to 3.
While the present application has been described with reference to specific embodiments, those skilled in the art will appreciate that various changes can be made without departing from the true spirit and scope of the present application. In addition, many modifications may be made to adapt a particular situation, material, composition of matter, and method to the objective, spirit and scope of the present application. All such modifications are intended to be included within the scope of the claims of this application.
Claims (10)
1. An aluminum matrix composite includes an aluminum alloy substrate, graphene, and a ceramic material.
2. The aluminum matrix composite according to claim 1, wherein the graphene is present in an amount of 0.5% to 2% based on 100% by mass of the aluminum matrix composite; the amount of the ceramic material is 5% to 20%, and the balance is the aluminum alloy base material.
3. Aluminium matrix composite according to claim 1 or 2, characterized in that the aluminium alloy substrate comprises copper, magnesium, zinc, zirconium and aluminium.
4. The aluminum-based composite material as recited in claim 3, wherein the Cu is 2% to 2.6%, the Mg is 1.9% to 2.6%, the Zn is 5.7% to 6.7%, the Zr is 0.08% to 0.15%, and the balance is the aluminum, based on 100% by mass of the aluminum alloy substrate.
5. Aluminium matrix composite according to any one of claims 1 to 4, characterized in that said ceramic material is selected from Al2O3And/or SiC.
6. The method for the preparation of an aluminium matrix composite according to any one of claims 1 to 5, comprising the steps of:
1) mixing graphene powder with a first solvent, and performing ultrasonic treatment to obtain a first dispersion liquid;
2) mixing the aluminum alloy base material powder and the ceramic material powder with a second solvent together, and performing ultrasonic treatment to obtain a second dispersion liquid;
3) mixing the first dispersion liquid and the second dispersion liquid, and then mechanically stirring to obtain a third dispersion liquid;
4) drying the third dispersion liquid in a vacuum drying oven to obtain mixed powder;
5) putting the mixed powder into a sheath, and then carrying out hot isostatic pressing treatment to obtain a bulk material;
6) and removing the sheath of the outer layer of the block material to obtain the aluminum-based composite material.
7. The method of claim 6, wherein the first solvent and the second solvent independently comprise ethanol and/or water.
8. The production method according to claim 6 or 7, characterized in that the time of the sonication of step 1) and the time of the sonication of step 2) are independently 20 to 50 minutes;
preferably, the time of mechanical stirring of step 3) is from 40 to 90 minutes;
preferably, the vacuum degree of the step 4) is 0.5 × 10-1To 1.5 × 10-1Pa, at a temperature of between 60 and 80 ℃ for a time of between 20 and 30 hours;
preferably, in the step 5), after the mixed powder is filled into the sheath, the sheath is vacuumized to a vacuum degree of 0.5 × 10-1To 1.5 × 10-1Pa, then treating for 1.5 to 3 hours at a temperature of 360 to 400 ℃, then cooling, and then sealing the sheath;
preferably, in step 5), the hot isostatic pressing is carried out at a temperature of 400 to 500 ℃ and a pressure of 130 to 150MPa for a period of 1.5 to 3 hours.
9. The production method according to any one of claims 6 to 8, wherein the graphene powder is contained in the first dispersion liquid in an amount of 1% to 5% by mass;
preferably, the total mass content of the aluminum alloy base material powder and the ceramic material powder in the second dispersion liquid is 10% to 20%.
10. The production method according to any one of claims 6 to 9, wherein the particle size of the graphene powder is 20 to 40 μm;
preferably, the aluminum alloy base material powder has a particle size of 80 to 120 micrometers;
preferably, the ceramic material powder has a particle size of 40 to 80 μm.
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