CN114855103A - Metal reinforced magnesium-based composite material based on accumulated plastic deformation and preparation method thereof - Google Patents
Metal reinforced magnesium-based composite material based on accumulated plastic deformation and preparation method thereof Download PDFInfo
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- CN114855103A CN114855103A CN202210639695.2A CN202210639695A CN114855103A CN 114855103 A CN114855103 A CN 114855103A CN 202210639695 A CN202210639695 A CN 202210639695A CN 114855103 A CN114855103 A CN 114855103A
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- 239000002184 metal Substances 0.000 title claims abstract description 137
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 134
- 239000011777 magnesium Substances 0.000 title claims abstract description 67
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 63
- 239000002131 composite material Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 78
- 238000000034 method Methods 0.000 claims abstract description 37
- 239000011159 matrix material Substances 0.000 claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 22
- 239000002905 metal composite material Substances 0.000 claims abstract description 14
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- 238000000137 annealing Methods 0.000 claims abstract description 8
- 150000002739 metals Chemical class 0.000 claims abstract description 6
- 230000001186 cumulative effect Effects 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 17
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910001111 Fine metal Inorganic materials 0.000 description 4
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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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
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
-
- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
-
- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- Chemical & Material Sciences (AREA)
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- Metallurgy (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a metal reinforced magnesium-based composite material based on accumulated plastic deformation and a preparation method thereof, belonging to the field of nonferrous metals and comprising the following steps: alternately stacking the magnesium alloy with clean surface and the reinforced metal; carrying out plastic deformation on the magnesium alloy/reinforced metal blank so as to realize metallurgical welding of the magnesium alloy and the reinforced metal; carrying out annealing treatment on the magnesium alloy/reinforced metal composite material subjected to plastic deformation so as to recover the plastic deformation capacity of the magnesium alloy; cutting off the sample, cleaning the surface of the composite material, and stacking the samples; repeating the steps of stacking, plastic deformation and annealing, accumulating the plastic deformation, continuously refining and crushing the reinforced metal, and uniformly distributing the reinforced metal in the magnesium alloy matrix to obtain the metal reinforced magnesium-based composite material. The invention prepares the metal reinforced magnesium-based composite material by the method of accumulated plastic deformation, and can improve the comprehensive performance of the magnesium alloy material.
Description
Technical Field
The invention belongs to the field of nonferrous metals, and relates to a metal reinforced magnesium-based composite material based on accumulated plastic deformation and a preparation method thereof.
Background
The magnesium alloy has a series of advantages of low density, high specific strength, high damping and shock absorption, good biocompatibility, easy recovery and the like, and is applied to relevant fields of aerospace, electronic products, automobiles and the like. However, magnesium alloys have low absolute strength and low plasticity compared to other structural materials (e.g., steel, aluminum alloys, titanium alloys), and thus are difficult to meet the application requirements of key components. Therefore, improving the comprehensive mechanical property of the magnesium alloy is a key link for further promoting the wide application of the magnesium alloy.
The method is an important method for improving the comprehensive mechanical property of the magnesium alloy by adding the reinforcing phase into the magnesium alloy matrix. In recent years, the metal reinforcing phase has received high attention because of its high strength and good plastic deformation ability. At present, the commonly used methods for metal reinforcing magnesium-based composite materials include: casting and powder metallurgy. In the casting process, a fine-size reinforcing metal is added to a magnesium alloy melt and stirred mechanically or otherwise to effect dispersion of the reinforcing metal. In the powder metallurgy method, a reinforcing metal of a fine size is mixed with magnesium alloy particles, and the dispersion of the reinforcing metal is realized by a method such as ball milling. It can be seen that the current preparation method of metal reinforced magnesium-based composite material directly uses the reinforcing metal with fine size, such as metal particles, metal fibers, metal flakes, etc.
However, the surface oxidation problem is inevitably involved in the processes of preparing, dispersing and welding the fine metal and the magnesium alloy matrix, and the surface oxidation problem is serious because the specific surface area of the fine metal is large, so that the fine metal is not favorable for enhancing the good combination of the metal and the magnesium matrix, thereby preventing the strengthening and toughening effects of the metal from being exerted. In addition, the small-sized metal has large specific surface area, high activity and great potential safety hazard in the preparation process. Therefore, how to prepare a metal reinforced magnesium matrix composite material with good interface bonding and excellent comprehensive performance under the safety premise becomes a problem which needs to be solved urgently.
Disclosure of Invention
In view of the above, the present invention aims to provide a metal reinforced magnesium-based composite material based on accumulated plastic deformation and a preparation method thereof, wherein a bulk reinforced metal is adopted to significantly reduce the initial specific surface area of the reinforced metal and the problem of surface oxidation thereof, and the interface bonding between the reinforced metal and a magnesium matrix is expected to be significantly improved, thereby contributing to the improvement of the comprehensive mechanical properties of the metal reinforced magnesium-based composite material.
In order to achieve the purpose, the invention provides the following technical scheme:
the preparation method of the metal reinforced magnesium-based composite material based on the accumulated plastic deformation comprises the following steps:
s1, alternately stacking the magnesium alloy and the reinforced metal to form a magnesium alloy-reinforced metal blank;
s2, performing plastic deformation on the magnesium alloy-reinforced metal blank to enable the magnesium alloy and the reinforced metal to be metallurgically welded to obtain the magnesium alloy-reinforced metal composite material;
s3, annealing the magnesium alloy-reinforced metal composite material, recovering the plastic deformation capacity of the magnesium alloy, and obtaining a magnesium alloy-reinforced metal composite sample;
s4 cutting and stacking the magnesium alloy-reinforced metal composite samples obtained in the step S3;
s5 repeating the steps S2, S3 and S4, accumulating plastic deformation, continuously thinning and crushing the reinforced metal, and uniformly distributing the reinforced metal in the magnesium alloy matrix to obtain the metal reinforced magnesium-based composite material.
Optionally, in step S1 and step S4, each layer of material is surface cleaned before being stacked.
Optionally, the reinforcing metal in step S1 is one or more metals selected to improve the mechanical properties of the magnesium alloy.
Optionally, the reinforced metal in step S1 is a plate, a bar or a wire.
Optionally, mechanical polishing, ultrasonic cleaning or acid washing is adopted for surface cleaning to remove magnesium alloy and enhance metal surface pollutants and oxides, so that fresh metal is exposed, and a foundation is laid for subsequent metallurgical welding.
Optionally, the plastic deformation in step S2 is rolling, extruding or drawing, and the deformation temperature is 100 ℃ to 500 ℃.
Alternatively, the plastic deformation in step S2 is performed under vacuum or a protective atmosphere.
Optionally, in step S4, the magnesium alloy-reinforced metal composite sample is divided equally by cutting on the basis of removing the poor welded portion, so as to further perform plastic deformation.
Optionally, the reinforced metal with plasticity inferior to that of the magnesium alloy is selected and continuously crushed in the process of accumulating plastic deformation, further refined into the forms of particles, slices and short fibers, uniformly dispersed in the magnesium alloy matrix and kept metallurgically welded with the magnesium alloy matrix to form the metal reinforced magnesium-based composite material.
A metal reinforced magnesium-based composite material based on accumulated plastic deformation is prepared by adopting the method.
The invention has the beneficial effects that:
(1) compared with the traditional preparation method of the metal reinforced magnesium-based composite material, which directly adopts fine metal, the invention adopts the block reinforced metal, has small initial specific surface area and obviously reduces surface oxidation. In addition, the oxides formed during the initial stages of the magnesium alloy and the reinforcing metal will break and disperse during the subsequent cumulative large plastic deformation, and the effect on the interfacial bonding between the reinforcing metal/magnesium matrix is very limited. Therefore, the preparation method provided by the invention is expected to remarkably improve the interface bonding between the reinforced metal and the magnesium matrix, thereby being beneficial to improving the comprehensive mechanical property of the metal reinforced magnesium matrix composite.
(2) Compared with the method of directly using the fine-size reinforced metal, the method of the invention adopts the block reinforced metal, has small initial specific surface area, low safety risk of combustion of the fine-size metal (particles, flakes and the like), simple equipment requirement and the like, and is suitable for large-scale production.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the evolution of the reinforcement metal during the cumulative plastic deformation process of the present invention;
FIG. 2 is a schematic view of the process for preparing a metal reinforced Mg-based composite by accumulative extrusion plastic deformation in accordance with the present invention;
FIG. 3 is a schematic view of the process of preparing a metal reinforced Mg-based composite material by accumulative rolling plastic deformation according to the present invention;
FIG. 4 is a schematic view of the process of preparing Ti sheet reinforced Mg-based composite material by accumulative rolling plastic deformation in the present invention;
FIG. 5 is a microstructure view of Ti sheet reinforced Mg-based composite material prepared by accumulative rolling plastic deformation in example 3;
fig. 6 is a graph comparing the room temperature tensile curve of Ti reinforced mg-based composite material prepared based on the accumulative rolling plastic deformation and the conventional powder metallurgy method in example 3.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the present invention provides a metal reinforced magnesium-based composite material based on accumulated plastic deformation and a preparation method thereof, and the present invention specifically includes the following technical scheme:
(1) cleaning the surfaces of the magnesium alloy and the reinforced metal;
(2) alternately stacking the magnesium alloy with clean surface and the reinforced metal;
(3) carrying out plastic deformation on the magnesium alloy/reinforced metal blank so as to realize metallurgical welding of the magnesium alloy and the reinforced metal;
(4) carrying out annealing treatment on the magnesium alloy/reinforced metal composite material subjected to plastic deformation so as to recover the plastic deformation capacity of the magnesium alloy;
(5) cutting off the sample obtained in the step (4), cleaning the surface of the composite material, and stacking the composite material and the sample;
(6) and (5) repeating the steps (3), (4) and (5), namely accumulating plastic deformation, continuously thinning and crushing the reinforced metal, and uniformly distributing the reinforced metal in the magnesium alloy matrix to obtain the metal reinforced magnesium-based composite material.
The reinforcing metal in the step (1) can be one or more metals, and the selection of the reinforcing metal aims at improving the mechanical property of the magnesium alloy. The reinforced metal in the step (1) can be in the shapes of plates, bars, wires and the like. The surface cleaning in the step (1) can be mechanical polishing, ultrasonic cleaning or acid cleaning to remove magnesium alloy and enhance metal surface pollutants and oxides, expose fresh metal and lay a foundation for subsequent metallurgical welding. The magnesium alloy and the reinforcing metal are alternately stacked in the step (2) to increase the contact area of the magnesium alloy and the reinforcing metal. The plastic deformation in the step (3) can be in the forms of rolling, extruding, drawing and the like, and the selection of the plastic deformation amount aims to be beneficial to realizing the metallurgical welding of the magnesium alloy and the reinforced metal.
In order to effectively realize the metallurgical bonding of the magnesium alloy and the reinforcing metal in the step (3), the plastic deformation is generally carried out under high-temperature vacuum or protective atmosphere. When parameters such as the temperature and the deformation rate of the plastic deformation in the step (3) are selected, the magnesium alloy is not damaged in the plastic deformation process, and the plasticity of the reinforced metal is lower than that of the magnesium alloy. When the parameters such as the temperature and the deformation rate of the plastic deformation in the step (3) are selected, the magnesium alloy is not damaged in the plastic deformation process, and the plasticity of the reinforced metal is lower than that of the magnesium alloy. And (5) in the step (5), the truncation is to equally divide the magnesium alloy/reinforced metal composite sample on the basis of removing the poor welding part so as to further perform plastic deformation. And (5) repeating the steps (3), (4) and (5) to realize accumulated plastic deformation, wherein the plasticity of the reinforced metal is poorer than that of the magnesium alloy under the selected plastic deformation condition, the reinforced metal can be continuously refined and crushed in the accumulated plastic deformation process, and then the reinforced metal is converted into the shapes of fine particles, thin sheets, fibers and the like from a block body, is dispersed in the magnesium alloy matrix and keeps good metallurgical welding with the magnesium alloy matrix to form the metal reinforced magnesium-based composite material.
Example 1
The present embodiment provides a metal reinforced magnesium-based composite material based on cumulative plastic deformation (cumulative extrusion) and a preparation method thereof, as shown in fig. 2, comprising the following steps:
(1) selecting a magnesium alloy and a reinforced metal plate, and cutting the magnesium alloy and the reinforced metal plate into small plates with the same width and length by utilizing wire cutting. Polishing the metal surface layer by using a steel wire brush to expose fresh metal, removing grease on the surface of the sample by using acetone, and finally drying the sample by blowing;
(2) alternately stacking the magnesium alloy with clean surface and the reinforced metal small plates;
(3) and (3) preheating the stacked magnesium alloy/reinforced metal composite blank in a heating furnace, wherein the heating temperature and the heating time are determined according to the selected magnesium alloy and reinforced metal, and argon is introduced during heating to prevent the metal from being oxidized in the heat preservation process. After heating, taking the composite blank out of the heating furnace, putting the composite blank into an extrusion die, and carrying out extrusion compounding to obtain a reinforced metal/magnesium alloy composite material;
(4) carrying out recrystallization annealing on the extruded and compounded plate to recover the plastic deformation capacity of the magnesium alloy;
(5) aiming at the sample obtained in the step (4), cutting off the poor welding part by using methods such as linear cutting and the like, then performing equal cutting, then performing surface cleaning on the plates, and stacking the plates;
(6) and (5) repeating the steps (3), (4) and (5), namely accumulating plastic deformation (accumulating extrusion), so that the reinforced metal is continuously thinned and crushed, keeps good interface combination with the magnesium matrix and is uniformly distributed in the magnesium alloy matrix, and the metal reinforced magnesium-based composite material is obtained.
Example 2
The present embodiment provides a metal reinforced magnesium-based composite material based on cumulative plastic deformation (cumulative rolling) and a preparation method thereof, as shown in fig. 3, comprising the following steps:
(1) selecting a magnesium alloy and a reinforced metal plate, and cutting the magnesium alloy and the reinforced metal plate into small plates with the same width and length by utilizing wire cutting. Polishing the metal surface layer by using a steel wire brush to expose fresh metal, removing grease on the surface of the sample by using acetone, and finally drying the sample by blowing;
(2) alternately stacking the magnesium alloy with clean surface and the reinforced metal small plates;
(3) and (3) preheating the stacked reinforced metal/magnesium alloy composite blank in a heating furnace, wherein the heating temperature and the heating time are determined according to the selected magnesium alloy and the reinforced metal, and argon is introduced during heating to prevent the metal from being oxidized in the heat preservation process. After heating, taking the composite blank out of the heating furnace, and carrying out hot rolling compounding by using a rolling mill to obtain a reinforced metal/magnesium alloy composite material;
(4) carrying out recrystallization annealing on the rolled and compounded plate to recover the plastic deformation capacity of the magnesium alloy;
(5) aiming at the sample obtained in the step (4), cutting off the poor welding part by using methods such as linear cutting and the like, then performing equal cutting, then performing surface cleaning on the plates, and stacking the plates;
(6) and (5) repeating the steps (3), (4) and (5), namely accumulating plastic deformation (accumulating rolling), so that the reinforced metal is continuously thinned and crushed, keeps good interface combination with the magnesium matrix and is uniformly distributed in the magnesium alloy matrix, and the metal reinforced magnesium-based composite material is obtained.
Example 3
The Ti sheet reinforced magnesium matrix composite material based on cumulative plastic deformation (cumulative rolling) and the preparation method thereof provided by the embodiment, as shown in fig. 4, include the following steps:
(1) a magnesium alloy plate of AZ31 and a commercial pure titanium (CP-Ti) plate with the thicknesses of 1mm and 0.5mm are selected as reinforced metals, and the magnesium alloy plate and the reinforced metal plate are cut into small plates of 50mm multiplied by 100mm by using wire cutting. Polishing the metal surface layer by using a steel wire brush to expose fresh metal, removing grease on the surface of the sample by using acetone, and finally drying the sample by blowing;
(2) the AZ31 magnesium alloy with clean surface and the CP-Ti reinforced metal are alternately stacked and fixed by a rivet at one end of the plate to ensure that the plate does not slide relatively in the rolling deformation process;
(3) and (3) placing the stacked composite blanks in a heating furnace, preserving the heat for 10 minutes at the temperature of 450 ℃, and introducing argon into the furnace during heat preservation to prevent the metal from being oxidized in the heat preservation process. Then hot rolling and compounding to obtain a CP-Ti/AZ31 composite board;
(4) carrying out recrystallization annealing on the hot-rolled and compounded CP-Ti/AZ31 composite plate under the condition of keeping the temperature at 450 ℃ for 10 minutes, and then cooling in the air to recover the plastic deformation capacity of the magnesium alloy;
(5) aiming at the sample obtained in the step (4), cutting off the poor welding part by using methods such as linear cutting and the like, then performing 2-equal cutting, then cleaning the surfaces of the plates, and stacking the plates;
(6) and (5) repeating the steps (3), (4) and (5) for 4 times, namely accumulating plastic deformation (accumulating rolling), so that the CP-Ti is continuously thinned and crushed, is converted into fine flakes, keeps good interface combination with the magnesium matrix, and is uniformly distributed in the AZ31 magnesium alloy matrix, and the Ti flake reinforced magnesium matrix composite material is obtained.
For the Ti-reinforced mg-based composite material prepared based on the accumulative rolling deformation, a small sample was cut out by a wire cutting method, and its microstructure was observed by a Scanning Electron Microscope (SEM), as shown in fig. 5. It was found that the original continuous CP-Ti sheet had been broken into discrete, fine flakes and uniformly distributed in the AZ31 magnesium matrix, achieving good interfacial bonding between the Ti flakes and the matrix.
Aiming at the Ti reinforced magnesium-based composite material prepared based on the accumulative rolling deformation, a room-temperature tensile sample is cut by utilizing linear cutting, and the gauge length and the width of the tensile sample are 10mm and 3mm respectively. The room temperature unidirectional tensile test was performed on a universal tester, and the obtained engineering stress-strain curve is shown in fig. 6. The tensile strength of the Ti reinforced magnesium-based composite material prepared by the accumulative rolling method is 295.5MPa, and the elongation at break reaches 12.2%. For comparison, the stress-strain curve of Ti-reinforced magnesium alloy composite material prepared based on powder metallurgy reported in literature is also shown in fig. 6. It can be found that the Ti sheet reinforced magnesium matrix composite prepared based on accumulated plastic deformation (rolling) realizes better elongation at break on the premise of similar tensile strength, namely obtains better comprehensive mechanical properties.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. The preparation method of the metal reinforced magnesium-based composite material based on the accumulated plastic deformation is characterized by comprising the following steps of:
s1, alternately stacking the magnesium alloy and the reinforced metal to form a magnesium alloy-reinforced metal blank;
s2, performing plastic deformation on the magnesium alloy-reinforced metal blank to enable the magnesium alloy and the reinforced metal to be metallurgically welded to obtain the magnesium alloy-reinforced metal composite material;
s3, annealing the magnesium alloy-reinforced metal composite material, recovering the plastic deformation capacity of the magnesium alloy, and obtaining a magnesium alloy-reinforced metal composite sample;
s4 cutting and stacking the magnesium alloy-reinforced metal composite samples obtained in the step S3;
s5 repeating steps S2, S3 and S4, accumulating plastic deformation, continuously thinning and crushing the reinforced metal, and uniformly distributing the reinforced metal in the magnesium alloy matrix to obtain the metal reinforced magnesium-based composite material.
2. The method for preparing a metal reinforced magnesium-based composite material based on cumulative plastic deformation as claimed in claim 1, wherein: in step S1 and step S4, each layer of material is subjected to surface cleaning before the materials are stacked.
3. The method for preparing a metal reinforced magnesium-based composite material based on cumulative plastic deformation as claimed in claim 1, wherein: the reinforcing metal in step S1 is one or more metals selected to target improved mechanical properties of the magnesium alloy.
4. The method for preparing a metal reinforced magnesium-based composite material based on cumulative plastic deformation as claimed in claim 1, wherein: the reinforced metal in step S1 is a plate, a bar, or a wire.
5. The method for preparing a metal reinforced magnesium-based composite material based on cumulative plastic deformation as claimed in claim 2, wherein: the surface cleaning adopts mechanical polishing, ultrasonic cleaning or acid cleaning to remove magnesium alloy and enhance metal surface pollutants and oxides, and expose fresh metal, thereby laying a foundation for subsequent metallurgical welding.
6. The method for preparing a metal reinforced magnesium-based composite material based on cumulative plastic deformation as claimed in claim 1, wherein: the plastic deformation in step S2 is rolling, extrusion or drawing, and the deformation temperature is 100 to 500 ℃.
7. The method for preparing a metal reinforced magnesium-based composite material based on cumulative plastic deformation as claimed in claim 1, wherein: the plastic deformation in step S2 is performed under vacuum or a protective atmosphere.
8. The method for preparing a metal reinforced magnesium-based composite material based on cumulative plastic deformation as claimed in claim 1, wherein: in step S4, the magnesium alloy-reinforced metal composite sample is divided equally by cutting on the basis of removing the poor welded portion, so as to further perform plastic deformation.
9. The method for preparing a metal reinforced magnesium-based composite material based on cumulative plastic deformation as claimed in claim 1, wherein: the reinforced metal with plasticity inferior to that of magnesium alloy under deformation condition is selected and crushed continuously during the process of accumulating plastic deformation, and further refined into particles, slices and short fibers which are uniformly dispersed in the magnesium alloy matrix and kept metallurgically welded with the magnesium alloy matrix to form the metal reinforced magnesium-based composite material.
10. A metal reinforced magnesium based composite material based on cumulative plastic deformation, characterised in that it is prepared by the process as claimed in any one of claims 1 to 9.
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| CN202210639695.2A CN114855103A (en) | 2022-06-07 | 2022-06-07 | Metal reinforced magnesium-based composite material based on accumulated plastic deformation and preparation method thereof |
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| CN202210639695.2A Pending CN114855103A (en) | 2022-06-07 | 2022-06-07 | Metal reinforced magnesium-based composite material based on accumulated plastic deformation and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2420117A1 (en) * | 2003-02-17 | 2004-08-17 | Sigmabond Technologies Corporation | Method of producing metal composite materials comprising incompatible metals |
| US20080000557A1 (en) * | 2006-06-19 | 2008-01-03 | Amit Ghosh | Apparatus and method of producing a fine grained metal sheet for forming net-shape components |
| CN101376276A (en) * | 2007-08-31 | 2009-03-04 | 清华大学 | Magnesium-base compound material and preparation method thereof |
| RU2632345C1 (en) * | 2016-09-30 | 2017-10-04 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" | Method for producing sheet composite materials with dispersed-reinforced particles |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2420117A1 (en) * | 2003-02-17 | 2004-08-17 | Sigmabond Technologies Corporation | Method of producing metal composite materials comprising incompatible metals |
| US20080000557A1 (en) * | 2006-06-19 | 2008-01-03 | Amit Ghosh | Apparatus and method of producing a fine grained metal sheet for forming net-shape components |
| CN101376276A (en) * | 2007-08-31 | 2009-03-04 | 清华大学 | Magnesium-base compound material and preparation method thereof |
| RU2632345C1 (en) * | 2016-09-30 | 2017-10-04 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" | Method for producing sheet composite materials with dispersed-reinforced particles |
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