CN107299257A - A kind of modified graphene reinforced aluminum matrix composites and preparation method thereof - Google Patents
A kind of modified graphene reinforced aluminum matrix composites and preparation method thereof Download PDFInfo
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- CN107299257A CN107299257A CN201710342605.2A CN201710342605A CN107299257A CN 107299257 A CN107299257 A CN 107299257A CN 201710342605 A CN201710342605 A CN 201710342605A CN 107299257 A CN107299257 A CN 107299257A
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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
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
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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
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
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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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Abstract
The invention discloses a kind of modified graphene reinforced aluminum matrix composites and preparation method thereof, comprising following each component, its mass fraction percentage is：0.01~0.3wt.% of modified graphene, 0.3~2.4wt.% of copper, 0.2~1.3wt.% of carbon, 1.2~4.6wt.% of iron, 0.8~1.9wt.% of carborundum, 0.1~1.5wt.% of lanthana, 1.9~4.5wt.% of surfactant, surplus are aluminium.Preferably, intensity and hardness are raised modified graphene reinforced aluminum matrix composites comprehensive mechanical property of the present invention；The composite keeps the original plasticity of aluminum matrix composite；The method of the invention ensure that the wetability between graphene and metal bath, it is ensured that microstructure of composite is fine and close, and interface cohesion is good, and graphene is evenly distributed in aluminium base in the form of sheets.
Description
Technical field
The invention belongs to field of metal casting technology, it is related to a kind of aluminium alloy and its casting method, specially a kind of modified graphite
Alkene reinforced aluminum matrix composites and preparation method thereof.
Background technology
Light metal-based composite is a kind of excellent structure-function integration material, with high specific strength, high specific stiffness
And high ratio modulus, such as aluminium base, magnesium-based composite material, it has also become the ideal of the army and the people's industrial circle such as automobile, electronics, aviation, ocean
Material.Mutually different from conventional particles or fiber reinforcement, the graphene of two-dimensional structure is because of the physics such as intensity, the modulus of its superelevation spy
Property, as the enhancing phase of composite, it can play and act synergistically with matrix, to prepare high performance composite.
Graphene is also easy to produce agglomeration, has poor interface wet ability with metal, and because graphene density is far low
In the density of the metals such as aluminium, magnesium, floating is easily produced in metal bath, it is difficult to be uniformly distributed in metal.Asked for above-mentioned
Topic, people are modified by graphenic surface, molding mode optimization and the means such as physical-chemical reaction expand it is a large amount of on graphite
The light metal-based composites such as alkene enhancing aluminium, magnesium and its research of shaping.
The content of the invention
Present invention solves the technical problem that being：In order to overcome the defect of prior art, a kind of graphene dispersion is obtained uniformly,
And it is capable of the method for the mechanical property of reinforced aluminum matrix composites, strengthen aluminum-base composite the invention provides a kind of modified graphene
Material and preparation method thereof.
Technical scheme：A kind of modified graphene reinforced aluminum matrix composites, include following each component, its mass fraction percentage
Than for：0.01~0.3wt.% of modified graphene, 0.3~2.4wt.% of copper, 0.2~1.3wt.% of carbon, iron 1.2~
4.6wt.%, 0.8~1.9wt.% of carborundum, 0.1~1.5wt.% of lanthana, 1.9~4.5wt.% of surfactant, surplus
For aluminium.
It is preferred that, the mass fraction percentage of modified graphene is 0.01~0.05wt.%.
It is preferred that, the mass fraction percentage of carbon is 0.5~1.1wt.%.
It is preferred that, the mass fraction percentage of carborundum is 1.2~1.6wt.%.
It is preferred that, the mass ratio of aluminium element and modified graphene is more than 200.
It is preferred that, the mass ratio of aluminium element and carbon is more than 100.
It is preferred that, the mass ratio of aluminium element and surfactant is more than 20.
A kind of preparation method of modified graphene reinforced aluminum matrix composites, is comprised the steps of：
(1) graphene is added in absolute ethyl alcohol, m/v is 1:15~25, it is placed in ball mill, after being uniformly dispersed, adds
Cationic surfactant, ultrasonically treated 2~4 hours；
(2) system of the step (1) after ultrasonically treated is placed in 40~56 DEG C of baking oven, removes absolute ethyl alcohol, be made and change
Property graphene；
(3) fine aluminium is melted, whne its melt half when add modified graphene, 700~750 DEG C of inside holdings 30~
65 minutes；
(4) it is incubated and stirs evenly after addition copper, carbon, iron, carborundum and lanthana, refining agent is added at 750~780 DEG C and is carried out
Refining, stands 20~40 minutes after refining, adds surfactant, surface scum is skimmed at 700~720 DEG C, obtains aluminium conjunction
Golden melt；
(5) gravitational casting is carried out to aluminium alloy melt, obtains aluminium alloy castings；Casting is carried out to solution treatment successively, it is cold
But modified graphene reinforced aluminum matrix composites be can be prepared by after processing and Ageing Treatment.
It is preferred that, the temperature of solution treatment is 480~530 DEG C, and the time is 3~17 hours.
It is preferred that, the temperature of Ageing Treatment is 185~265 DEG C, and the time is 12~48 hours.
Beneficial effect：(1) modified graphene reinforced aluminum matrix composites comprehensive mechanical property of the present invention is preferable, intensity
With hardness rise；(2) composite keeps the original plasticity of aluminum matrix composite；(3) the method for the invention ensure that
Wetability between graphene and metal bath, it is ensured that microstructure of composite is fine and close, interface cohesion is good, and graphene is uniform in the form of sheets
It is distributed in aluminium base.
Embodiment
Embodiment 1
A kind of modified graphene reinforced aluminum matrix composites, comprising following each component, its mass fraction percentage is：It is modified
Graphene 0.01wt.%, copper 0.3wt.%, carbon 0.2wt.%, iron 1.2wt.%, carborundum 0.8wt.%, lanthana
0.1wt.%, surfactant 1.9wt.%, surplus are aluminium.
A kind of preparation method of modified graphene reinforced aluminum matrix composites, is comprised the steps of：
(1) graphene is added in absolute ethyl alcohol, m/v is 1:15, be placed in ball mill, after being uniformly dispersed, add sun from
Sub- surfactant, ultrasonically treated 2 hours；
(2) system of the step (1) after ultrasonically treated is placed in 40 DEG C of baking oven, removes absolute ethyl alcohol, modified stone is made
Black alkene；
(3) fine aluminium is melted, modified graphene is added when it melts half, in 700 DEG C of inside holdings 30 minutes；
(4) it is incubated and stirs evenly after addition copper, carbon, iron, carborundum and lanthana, refining agent is added at 750 DEG C and is refined,
20 minutes are stood after refining, surfactant is added, skims surface scum at 700 DEG C, obtain aluminium alloy melt；
(5) gravitational casting is carried out to aluminium alloy melt, obtains aluminium alloy castings；Casting is carried out to solution treatment successively, it is cold
But modified graphene reinforced aluminum matrix composites be can be prepared by after processing and Ageing Treatment.
The temperature of solution treatment is 480 DEG C, and the time is 3 hours.
The temperature of Ageing Treatment is 185 DEG C, and the time is 12 hours.
Embodiment 2
A kind of modified graphene reinforced aluminum matrix composites, comprising following each component, its mass fraction percentage is：It is modified
Graphene 0.05wt.%, copper 0.9wt.%, carbon 0.7wt.%, iron 1.8wt.%, carborundum 1.0wt.%, lanthana
0.5wt.%, surfactant 2.4wt.%, surplus are aluminium.
A kind of preparation method of modified graphene reinforced aluminum matrix composites, is comprised the steps of：
(1) graphene is added in absolute ethyl alcohol, m/v is 1:18, be placed in ball mill, after being uniformly dispersed, add sun from
Sub- surfactant, ultrasonically treated 3 hours；
(2) system of the step (1) after ultrasonically treated is placed in 45 DEG C of baking oven, removes absolute ethyl alcohol, modified stone is made
Black alkene；
(3) fine aluminium is melted, modified graphene is added when it melts half, in 710 DEG C of inside holdings 40 minutes；
(4) it is incubated and stirs evenly after addition copper, carbon, iron, carborundum and lanthana, refining agent is added at 760 DEG C and is refined,
25 minutes are stood after refining, surfactant is added, skims surface scum at 710 DEG C, obtain aluminium alloy melt；
(5) gravitational casting is carried out to aluminium alloy melt, obtains aluminium alloy castings；Casting is carried out to solution treatment successively, it is cold
But modified graphene reinforced aluminum matrix composites be can be prepared by after processing and Ageing Treatment.
The temperature of solution treatment is 500 DEG C, and the time is 5 hours.
The temperature of Ageing Treatment is 200 DEG C, and the time is 16 hours.
Embodiment 3
A kind of modified graphene reinforced aluminum matrix composites, comprising following each component, its mass fraction percentage is：It is modified
Graphene 0.1wt.%, copper 1.4wt.%, carbon 1.1wt.%, iron 2.9wt.%, carborundum 1.2wt.%, lanthana
1.2wt.%, surfactant 3.2wt.%, surplus are aluminium.
A kind of preparation method of modified graphene reinforced aluminum matrix composites, is comprised the steps of：
(1) graphene is added in absolute ethyl alcohol, m/v is 1:21, be placed in ball mill, after being uniformly dispersed, add sun from
Sub- surfactant, ultrasonically treated 3 hours；
(2) system of the step (1) after ultrasonically treated is placed in 50 DEG C of baking oven, removes absolute ethyl alcohol, modified stone is made
Black alkene；
(3) fine aluminium is melted, modified graphene is added when it melts half, in 725 DEG C of inside holdings 55 minutes；
(4) it is incubated and stirs evenly after addition copper, carbon, iron, carborundum and lanthana, refining agent is added at 770 DEG C and is refined,
30 minutes are stood after refining, surfactant is added, skims surface scum at 710 DEG C, obtain aluminium alloy melt；
(5) gravitational casting is carried out to aluminium alloy melt, obtains aluminium alloy castings；Casting is carried out to solution treatment successively, it is cold
But modified graphene reinforced aluminum matrix composites be can be prepared by after processing and Ageing Treatment.
The temperature of solution treatment is 515 DEG C, and the time is 10 hours.
The temperature of Ageing Treatment is 225 DEG C, and the time is 22 hours.
Embodiment 4
A kind of modified graphene reinforced aluminum matrix composites, comprising following each component, its mass fraction percentage is：It is modified
Graphene 0.3wt.%, copper 2.4wt.%, carbon 1.3wt.%, iron 4.6wt.%, carborundum 1.9wt.%, lanthana
1.5wt.%, surfactant 4.5wt.%, surplus are aluminium.
A kind of preparation method of modified graphene reinforced aluminum matrix composites, is comprised the steps of：
(1) graphene is added in absolute ethyl alcohol, m/v is 1:25, be placed in ball mill, after being uniformly dispersed, add sun from
Sub- surfactant, ultrasonically treated 4 hours；
(2) system of the step (1) after ultrasonically treated is placed in 56 DEG C of baking oven, removes absolute ethyl alcohol, modified stone is made
Black alkene；
(3) fine aluminium is melted, modified graphene is added when it melts half, in 750 DEG C of inside holdings 65 minutes；
(4) it is incubated and stirs evenly after addition copper, carbon, iron, carborundum and lanthana, refining agent is added at 780 DEG C and is refined,
40 minutes are stood after refining, surfactant is added, skims surface scum at 720 DEG C, obtain aluminium alloy melt；
(5) gravitational casting is carried out to aluminium alloy melt, obtains aluminium alloy castings；Casting is carried out to solution treatment successively, it is cold
But modified graphene reinforced aluminum matrix composites be can be prepared by after processing and Ageing Treatment.
The temperature of solution treatment is 530 DEG C, and the time is 17 hours.
The temperature of Ageing Treatment is 265 DEG C, and the time is 48 hours.
The modified graphene reinforced aluminum matrix composites that embodiment 1~4 is prepared are detected, as a result such as following table institute
Show：
Claims (10)
1. a kind of modified graphene reinforced aluminum matrix composites, it is characterised in that include following each component, its mass fraction percentage
Than for：0.01~0.3wt.% of modified graphene, 0.3~2.4wt.% of copper, 0.2~1.3wt.% of carbon, iron 1.2~
4.6wt.%, 0.8~1.9wt.% of carborundum, 0.1~1.5wt.% of lanthana, 1.9~4.5wt.% of surfactant, surplus
For aluminium.
2. a kind of modified graphene reinforced aluminum matrix composites according to claim 1, it is characterised in that modified graphene
Mass fraction percentage be 0.01~0.05wt.%.
3. a kind of modified graphene reinforced aluminum matrix composites according to claim 1, it is characterised in that the matter of carbon
Amount percentage fractional is 0.5~1.1wt.%.
4. a kind of modified graphene reinforced aluminum matrix composites according to claim 1, it is characterised in that the matter of carborundum
Amount percentage fractional is 1.2~1.6wt.%.
5. a kind of modified graphene reinforced aluminum matrix composites according to claim 1, it is characterised in that aluminium element is with changing
Property graphene mass ratio be more than 200.
6. a kind of modified graphene reinforced aluminum matrix composites according to claim 1, it is characterised in that aluminium element and carbon
The mass ratio of element is more than 100.
7. a kind of modified graphene reinforced aluminum matrix composites according to claim 1, it is characterised in that aluminium element and table
The mass ratio of face activating agent is more than 20.
8. a kind of preparation method of modified graphene reinforced aluminum matrix composites described in claim 1~7, it is characterised in that
Comprise the steps of：
(1) graphene is added in absolute ethyl alcohol, m/v is 1:15~25, be placed in ball mill, after being uniformly dispersed, add sun from
Sub- surfactant, ultrasonically treated 2~4 hours；
(2) system of the step (1) after ultrasonically treated is placed in 40~56 DEG C of baking oven, removes absolute ethyl alcohol, modified stone is made
Black alkene；
(3) fine aluminium is melted, modified graphene is added when it melts half, in 700~750 DEG C of 30~65 points of inside holdings
Clock；
(4) it is incubated and stirs evenly after addition copper, carbon, iron, carborundum and lanthana, refining agent is added at 750~780 DEG C and carries out essence
Refining, stands 20~40 minutes after refining, adds surfactant, skim surface scum at 700~720 DEG C, obtain aluminium alloy
Melt；
(5) gravitational casting is carried out to aluminium alloy melt, obtains aluminium alloy castings；Casting is carried out to solution treatment successively, at cooling
Modified graphene reinforced aluminum matrix composites are can be prepared by after reason and Ageing Treatment.
9. a kind of preparation method of modified graphene reinforced aluminum matrix composites according to claim 8, it is characterised in that
The temperature of solution treatment is 480~530 DEG C, and the time is 3~17 hours.
10. a kind of preparation method of modified graphene reinforced aluminum matrix composites according to claim 8, its feature exists
In the temperature of Ageing Treatment is 185~265 DEG C, and the time is 12~48 hours.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904431A (en) * | 2017-11-22 | 2018-04-13 | 中国科学院过程工程研究所 | A kind of graphene Al-alloy, preparation method, purposes and include its engine |
| CN108359852A (en) * | 2018-03-22 | 2018-08-03 | 沈阳理工大学 | A kind of high silica/aluminum-based composite material and preparation method of graphene enhancing |
| CN108588516A (en) * | 2018-06-19 | 2018-09-28 | 东营亦润信息技术有限公司 | A kind of aluminium base lightweight brake disc and preparation method thereof of graphene enhancing |
| CN108913931A (en) * | 2018-06-25 | 2018-11-30 | 宁波展欣汽车科技发展有限公司 | The preparation method of aluminium alloy automobile hub |
| CN108941547A (en) * | 2018-07-27 | 2018-12-07 | 上海理工大学 | A kind of preparation method of Copper-cladding Aluminum Bar graphene reinforced aluminum matrix composites |
| CN109112337A (en) * | 2018-09-30 | 2019-01-01 | 沈阳理工大学 | Graphene and silicon carbide hybrid reinforced aluminum-matrix composite material and preparation method thereof |
| CN110453113A (en) * | 2019-09-16 | 2019-11-15 | 宜春学院 | A kind of method of cesium oxide modified graphene enhancing Al alloy composite |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904431A (en) * | 2017-11-22 | 2018-04-13 | 中国科学院过程工程研究所 | A kind of graphene Al-alloy, preparation method, purposes and include its engine |
| CN107904431B (en) * | 2017-11-22 | 2020-02-11 | 中国科学院过程工程研究所 | Graphene composite aluminum alloy, preparation method and application thereof, and engine comprising graphene composite aluminum alloy |
| CN108359852A (en) * | 2018-03-22 | 2018-08-03 | 沈阳理工大学 | A kind of high silica/aluminum-based composite material and preparation method of graphene enhancing |
| CN108359852B (en) * | 2018-03-22 | 2020-06-16 | 沈阳理工大学 | Graphene-reinforced high-silicon aluminum-based composite material and preparation method thereof |
| CN108588516A (en) * | 2018-06-19 | 2018-09-28 | 东营亦润信息技术有限公司 | A kind of aluminium base lightweight brake disc and preparation method thereof of graphene enhancing |
| CN108588516B (en) * | 2018-06-19 | 2019-07-09 | 重庆九烯新能源科技有限公司 | A kind of aluminium base lightweight brake disc and preparation method thereof of graphene enhancing |
| CN108913931A (en) * | 2018-06-25 | 2018-11-30 | 宁波展欣汽车科技发展有限公司 | The preparation method of aluminium alloy automobile hub |
| CN108941547A (en) * | 2018-07-27 | 2018-12-07 | 上海理工大学 | A kind of preparation method of Copper-cladding Aluminum Bar graphene reinforced aluminum matrix composites |
| CN108941547B (en) * | 2018-07-27 | 2020-09-04 | 上海理工大学 | Preparation method of copper-doped graphene reinforced aluminum-based composite material |
| CN109112337A (en) * | 2018-09-30 | 2019-01-01 | 沈阳理工大学 | Graphene and silicon carbide hybrid reinforced aluminum-matrix composite material and preparation method thereof |
| CN110453113A (en) * | 2019-09-16 | 2019-11-15 | 宜春学院 | A kind of method of cesium oxide modified graphene enhancing Al alloy composite |
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Application publication date: 20171027 |