CN111497374A - Metal and high-entropy alloy laminated composite material and preparation method thereof - Google Patents
Metal and high-entropy alloy laminated composite material and preparation method thereof Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention provides a metal and high-entropy alloy laminated composite material and a preparation method thereof. The number of laminated layers of the metal-high entropy alloy laminated composite material is more than 2, and the lamination interval is 20-1000 um; the metal can be pure metal (Al, Ti, Ni, etc.) or corresponding alloy; the metal can be in a block shape or a powder shape; the high-entropy alloy can be powdery or blocky; the high-entropy alloy can be prepared by various methods such as electric arc melting, ball milling and the like; the conventional preparation method of the laminated composite material comprises a connection compounding method and a deposition compounding method; the connection compounding method comprises various methods such as extrusion, cold rolling, forging, hot-pressing sintering and the like; the deposition composite method comprises magnetron sputtering, electromagnetic pulse, vapor deposition and the like.
Description
Technical Field
The invention relates to a metal and high-entropy alloy laminated composite material.
Background
With the rapid development of the modern aviation industry, the traditional structural materials have difficulty meeting engineering requirements, so that structural materials with lighter weight, higher strength and stronger heat resistance and corrosion resistance are needed, which provides great challenges for the research and development and preparation of materials. The design inspiration of the laminated composite material comes from the nature, and the defect of the internal performance of the material is made up by adding soft and tough metal into the hard and brittle reinforcement, so that the laminated composite material has good comprehensive performance. In recent years, laminated composite materials have good application prospects in the aspects of aviation and automobile light weight, and the research and development of laminated composite materials are more and more focused.
The laminated composite material is formed by utilizing a composite technology to realize firm metallurgical bonding of two or more materials with different physical, chemical and mechanical properties on an interface. Laminated composite materials are mainly classified into the following three categories: metal-metal type, metal-intermetallic compound, metal-ceramic type. At present, metal-intermetallic compound laminated composite materials are a more studied class, mainly because intermetallic compounds have good oxidation resistance and high temperature performance. The patent CN 102501457A utilizes a process route of alternating and rolling and heat treatment to prepare the ceramic/TiAl laminated composite material plate. In patent CN 108637261A, TiAl/TMCs (titanium-based composite) laminated composite materials are prepared by using a process route of ball milling, powder spreading and spark plasma sintering, and good bonding interfaces are obtained. However, due to the intrinsic brittleness and environmental brittleness of the intermetallic compound, the plasticity and toughness at room temperature are low, so that the material has great difficulty in the subsequent machining and curved surface forming processes, thereby severely limiting the application of the metal-intermetallic compound laminated composite material.
The high-entropy alloy is an alloy prepared by 2 or more than 2 alloy elements according to an equal molar ratio. Compared with the traditional metal, the high-entropy alloy has the following characteristics: (1) thermodynamics: high entropy effect; (2) kinetics: slowly diffusing; (3) the structure is as follows: severe lattice distortion; (4) performance: "cocktail effect". The high entropy of mixing makes the alloy prone to form single phase solid solutions; severe lattice distortion enhances dislocation strengthening; slow diffusion makes the alloy easier to form some nano-precipitates. The three characteristics directly determine that the high-entropy alloy not only has higher toughness, but also has various excellent performances such as high hardness, high temperature resistance, high wear resistance, high corrosion resistance and the like.
Disclosure of Invention
The invention provides a metal and high-entropy alloy laminated composite material and a preparation method thereof, aiming at solving the problems of poor toughness and difficult machining and forming of the laminated composite material.
The invention relates to a metal and high-entropy alloy laminated composite material and a preparation method thereof. The metal-high entropy alloy laminated composite material has more than 2 laminated layers and the laminated interval of 20-1000 um.
Further, the metal may be a pure metal (Al, Ti, Ni, etc.) or a corresponding alloy.
Further, the metal may be in the form of a block or a powder.
Further, the high-entropy alloy can be in a powder form or a block form.
Further, the high-entropy alloy can be prepared by various methods such as electric arc melting, ball milling and the like.
Further, the conventional method for preparing the laminated composite material includes a joining composite method and a deposition composite method.
Further, the connection compounding method comprises a plurality of methods such as extrusion, cold rolling, forging, hot-pressing sintering and the like.
Further, the deposition composite method comprises magnetron sputtering, electromagnetic pulse, vapor deposition and the like.
The metal-high entropy alloy laminated composite material can be prepared by the following steps;
the method comprises the following steps: smelting the high-entropy alloy;
firstly, weighing metal simple substances with different weights according to the components of the selected high-entropy alloy, and preparing the high-entropy alloy by a vacuum arc melting method; remelting the high-entropy alloy by using a vacuum induction intermediate frequency smelting furnace and casting the high-entropy alloy in a metal mold to obtain a high-entropy alloy plate;
step two: high-entropy alloy and metal surface treatment;
the high-entropy alloy plate and the metal plate are respectively polished by the 50 # # signal, the 200 # signal and the 400 # sandpaper in sequence, and oxide layers on the surfaces of the high-entropy alloy plate and the metal plate are removed; cleaning the high-entropy alloy plate and the metal plate by using an ultrasonic cleaner to remove SiC particles and other attachments on the surface; then the high-entropy alloy plate and the metal plate are sequentially stacked together;
step three: spark plasma sintering;
putting the high-entropy alloy and the metal lamination into a discharge plasma sintering device, and then sintering by adopting the following process conditions: sintering temperature: 400-800 ℃; sintering pressure: 30-50 MPa, sintering time: 10-100 min.
The invention has the advantages that (1) the high-entropy alloy has an FCC or BCC crystal structure and has more slip systems than intermetallic compounds, so that the machining performance and the deformability of the metal-high-entropy alloy laminated composite material can be greatly improved; (2) the high-entropy alloy has an FCC or BCC crystal structure, is the same as a metal matrix crystal structure, and can greatly improve the interface bonding capability of the metal-high-entropy alloy laminated composite material.
Description of the drawings:
FIG. 1 (Fe)40.4Ni11.3Mn34.8Al7.5Cr6)C1.4The interface diagram of the high-entropy alloy and pure aluminum laminated composite material (a)620 ℃ (b)570 ℃; (c)520 ℃;
FIG. 2 (F)e40.4Ni11.3Mn34.8Al7.5Cr6)C1.4Tensile curve of high-entropy alloy aluminum-based composite board
The specific implementation mode is as follows:
the present invention is described in further detail with reference to the following examples, but the implementation of the present invention is not limited thereto.
Example 1:
the method comprises the following steps: high entropy alloy melting
According to (Fe)40.4Ni11.3Mn34.8Al7.5Cr6)C1.4The metal purities of the element proportioning material are respectively Fe-99.9%, Ni-99.99%, Mn-99.8%, Al-99.99%, Cr-99.5% and C-99.9%.
Preparing high-entropy alloy by using a vacuum arc melting furnace, wherein the furnace body is firstly vacuumized in the melting process, and then, argon is back-flushed to 0.06 MPa; in order to ensure the alloy to be melted uniformly, the alloy is melted for more than 3 times; remelting the high-entropy alloy by using a vacuum intermediate frequency induction smelting furnace and casting the high-entropy alloy in a metal mold, wherein the size of the mold is 60mm by 25mm by 1.5 mm;
step two: high entropy alloy and metal surface treatment
The high-entropy alloy and the metal are respectively polished by the # 50, # 200 and # 400 # sandpaper in sequence, and oxide layers on the surfaces of the # 50, # 200 and # 400 are removed; cleaning the high-entropy alloy and the metal by using an ultrasonic cleaner to remove SiC particles and other attachments on the surface; then stacking the high-entropy alloy and the metal together in sequence;
step three: spark plasma sintering
Putting the high-entropy alloy and the metal lamination into a discharge plasma sintering device, and then sintering by adopting the following process conditions: sintering temperature: 620 ℃;
sintering pressure: 30MPa;
sintering time: 10 min;
(Fe) obtained in this example40.4Ni11.3Mn34.8Al7.5Cr6)C1.4And the Al laminated composite material has a good bonding interface. As shown in FIG. 1 (a), the bonding interface is divided intoThe three areas are a high-entropy alloy area, an aluminum alloy area and an intermediate reaction layer, and the average thickness of the reaction layer reaches 13.1 um. The black curve in FIG. 2 is the tensile curve of the laminated composite material of example 1, and it can be seen from the graph that the tensile strength is 315MPa and the plastic limit is 27%.
Example 2:
the method comprises the following steps: high entropy alloy melting
According to (Fe)40.4Ni11.3Mn34.8Al7.5Cr6)C1.4The metal purities of the element proportioning materials are respectively Fe-99.9%, Ni-99.99%, Mn-99.8%, Al-99.99%, Cr-99.5% and C-99.9%;
preparing high-entropy alloy by using a vacuum arc melting furnace, wherein the furnace body is firstly vacuumized in the melting process, and then, argon is back-flushed to 0.06 MPa; in order to ensure the alloy to be melted uniformly, the alloy is melted for more than 3 times; remelting the high-entropy alloy by using a vacuum intermediate frequency induction smelting furnace and casting the high-entropy alloy in a metal mold, wherein the size of the mold is 60mm by 25mm by 1.5 mm;
step two: high entropy alloy and metal surface treatment
The high-entropy alloy and the metal are respectively polished by the # 50, # 200 and # 400 # sandpaper in sequence, and oxide layers on the surfaces of the # 50, # 200 and # 400 are removed; cleaning the high-entropy alloy and the metal by using an ultrasonic cleaner to remove SiC particles and other attachments on the surface; then stacking the high-entropy alloy and the metal together in sequence;
step three: spark plasma sintering
Putting the high-entropy alloy and the metal lamination into a discharge plasma sintering device, and then sintering by adopting the following process conditions: sintering temperature: 570 ℃;
sintering pressure: 30MPa;
sintering time: 10 min;
(Fe) obtained in this example40.4Ni11.3Mn34.8Al7.5Cr6)C1.4And the Al laminated composite material has a good bonding interface. As shown in FIG. 1 (b), the bonding interface is divided into three regions, a high entropy alloy region, an aluminum alloy region and an intermediate reaction layer,the average thickness of the reaction layer reached 9.2 um. The red curve in FIG. 2 is the tensile curve of the laminated composite material of example 2, and it can be seen from the figure that the tensile strength is 305MPa, the plastic limit is 35%, and the composite material has good comprehensive properties.
Example 3:
the method comprises the following steps: high entropy alloy melting
According to (Fe)40.4Ni11.3Mn34.8Al7.5Cr6)C1.4The metal purities of the element proportioning materials are respectively Fe-99.9%, Ni-99.99%, Mn-99.8%, Al-99.99%, Cr-99.5% and C-99.9%;
preparing high-entropy alloy by using a vacuum arc melting furnace, wherein the furnace body is firstly vacuumized in the melting process, and then, argon is back-flushed to 0.06 MPa; in order to ensure the alloy to be melted uniformly, the alloy is melted for more than 3 times; remelting the high-entropy alloy by using a vacuum intermediate frequency induction smelting furnace and casting the high-entropy alloy in a metal mold, wherein the size of the mold is 60mm by 25mm by 1.5 mm;
step two: high entropy alloy and metal surface treatment
The high-entropy alloy and the metal are respectively polished by the # 50, # 200 and # 400 # sandpaper in sequence, and oxide layers on the surfaces of the # 50, # 200 and # 400 are removed; cleaning the high-entropy alloy and the metal by using an ultrasonic cleaner to remove SiC particles and other attachments on the surface; then stacking the high-entropy alloy and the metal together in sequence;
step three: spark plasma sintering
Putting the high-entropy alloy and the metal lamination into a discharge plasma sintering device, and then sintering by adopting the following process conditions: sintering temperature: 520 ℃;
sintering pressure: 30MPa;
sintering time: 10 min;
(Fe) obtained in this example40.4Ni11.3Mn34.8Al7.5Cr6)C1.4And the Al laminated composite material has a better bonding interface. As shown in fig. 1 (c), the bonding interface is divided into three regions, i.e., a high-entropy alloy region, an aluminum alloy region, and an intermediate reaction layer, and the average thickness of the reaction layer reaches 4.2 um.The blue curve in FIG. 2 is the tensile curve of the laminated composite material of example 3, and it can be seen that the tensile strength is 275MPa and the plastic limit is 28%.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The metal and high-entropy alloy laminated composite material is characterized in that metal and high-entropy alloy are alternately stacked, and then the metal and high-entropy alloy laminated composite material is obtained by a conventional laminated composite material preparation method, wherein the number of laminated layers of the metal and high-entropy alloy laminated composite material is more than 2, and the lamination distance is 20-1000 microns.
2. A metal and high entropy alloy laminated composite material and its preparation method, characterized in that, the metal can be pure metal (Al, Ti, Ni, etc.), or corresponding alloy.
3. A metal and high entropy alloy laminated composite material and its preparation method, characterized by that, the metal can be bulk or powder.
4. A metal and high entropy alloy laminated composite material and its preparation method, characterized by that, the high entropy alloy can be powder or block.
5. The metal and high-entropy alloy laminated composite material and the preparation method thereof according to the claims, wherein the high-entropy alloy can be prepared by various methods such as arc melting and ball milling.
6. The metal and high-entropy alloy laminated composite material and the preparation method thereof according to the claims, wherein the conventional laminated composite material preparation method comprises a connection compounding method and a deposition compounding method.
7. The metal and high-entropy alloy laminated composite material and the preparation method thereof according to the claims, wherein the connection compounding method comprises multiple methods such as extrusion, cold rolling, forging, hot-pressing sintering and the like.
8. The metal and high-entropy alloy laminated composite material and the preparation method thereof according to the claims, wherein the deposition composite method comprises magnetron sputtering, electromagnetic pulse, vapor deposition and the like.
9. According to the claimed metal and high-entropy alloy laminated composite material and the preparation method thereof, the metal-high-entropy alloy laminated composite material can be prepared by the following steps:
the method comprises the following steps: smelting the high-entropy alloy;
firstly, weighing metal simple substances with different weights according to the components of the selected high-entropy alloy, and preparing the high-entropy alloy by a vacuum arc melting method; remelting the high-entropy alloy by using a vacuum induction intermediate frequency smelting furnace and casting the high-entropy alloy in a metal mold to obtain a high-entropy alloy plate;
step two: high-entropy alloy and metal surface treatment;
the high-entropy alloy plate and the metal plate are respectively polished by the 50 # # signal, the 200 # signal and the 400 # sandpaper in sequence, and oxide layers on the surfaces of the high-entropy alloy plate and the metal plate are removed; cleaning the high-entropy alloy plate and the metal plate by using an ultrasonic cleaner to remove SiC particles and other attachments on the surface; then the high-entropy alloy plate and the metal plate are sequentially stacked together;
step three: spark plasma sintering;
putting the high-entropy alloy and the metal lamination into a discharge plasma sintering device, and then sintering by adopting the following process conditions: sintering temperature: 400-800 ℃; sintering pressure: 30-50 MPa, sintering time: 10-100 min.
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Cited By (8)
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| CN112958783A (en) * | 2020-10-09 | 2021-06-15 | 山东大学 | Laser melting deposition refractory high-entropy alloy micro-laminated composite material and preparation method and application thereof |
| CN113695502A (en) * | 2021-07-08 | 2021-11-26 | 中国科学院金属研究所 | Multilayer metal cold deformation construction forming method |
| WO2022041636A1 (en) * | 2020-08-31 | 2022-03-03 | 江苏大学 | Rolled (feconicrrn/al)-2024al composite board and preparation method therefor |
| CN114643462A (en) * | 2022-05-20 | 2022-06-21 | 太原理工大学 | Titanium alloy/stainless steel composite board and preparation method thereof |
| CN115070037A (en) * | 2022-06-21 | 2022-09-20 | 哈尔滨理工大学 | Method for enhancing Ti-Al series layered composite material by utilizing AlCoCrFeNi high-entropy alloy |
| CN115094289A (en) * | 2022-05-31 | 2022-09-23 | 上海交通大学 | Re-modified high-performance eutectic high-entropy alloy and preparation process thereof |
| CN116618434A (en) * | 2023-05-12 | 2023-08-22 | 华中科技大学 | High-entropy alloy layered composite material and preparation method thereof |
| CN115572970B (en) * | 2022-09-08 | 2024-06-07 | 江苏大学 | High-performance high-entropy alloy material and preparation method thereof |
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Cited By (16)
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| GB2605890A (en) * | 2020-08-31 | 2022-10-19 | Univ Jiangsu | Rolled (feconicrrn/al)-2024al composite board and preparation method therefor |
| US11731178B2 (en) | 2020-08-31 | 2023-08-22 | Jiangsu University | Rolled (FeCoNiCrRn/Al)-2024Al composite panel and fabrication method thereof |
| WO2022041636A1 (en) * | 2020-08-31 | 2022-03-03 | 江苏大学 | Rolled (feconicrrn/al)-2024al composite board and preparation method therefor |
| GB2605890B (en) * | 2020-08-31 | 2023-04-12 | Univ Jiangsu | Rolled (FeCoNiCrRn/Al)-2024Al composite board and preparation method thereof |
| CN112958783B (en) * | 2020-10-09 | 2022-08-12 | 山东大学 | Laser melting deposition refractory high-entropy alloy micro-laminated composite material and preparation method and application thereof |
| CN112958783A (en) * | 2020-10-09 | 2021-06-15 | 山东大学 | Laser melting deposition refractory high-entropy alloy micro-laminated composite material and preparation method and application thereof |
| CN113695502B (en) * | 2021-07-08 | 2023-04-07 | 中国科学院金属研究所 | Multi-layer metal cold deformation construction forming method |
| CN113695502A (en) * | 2021-07-08 | 2021-11-26 | 中国科学院金属研究所 | Multilayer metal cold deformation construction forming method |
| CN114643462B (en) * | 2022-05-20 | 2022-08-16 | 太原理工大学 | Titanium alloy/stainless steel composite board and preparation method thereof |
| CN114643462A (en) * | 2022-05-20 | 2022-06-21 | 太原理工大学 | Titanium alloy/stainless steel composite board and preparation method thereof |
| CN115094289A (en) * | 2022-05-31 | 2022-09-23 | 上海交通大学 | Re-modified high-performance eutectic high-entropy alloy and preparation process thereof |
| CN115070037A (en) * | 2022-06-21 | 2022-09-20 | 哈尔滨理工大学 | Method for enhancing Ti-Al series layered composite material by utilizing AlCoCrFeNi high-entropy alloy |
| CN115070037B (en) * | 2022-06-21 | 2024-01-26 | 哈尔滨理工大学 | Method for reinforcing Ti-Al layered composite material by using AlCoCrFeNi high-entropy alloy |
| CN115572970B (en) * | 2022-09-08 | 2024-06-07 | 江苏大学 | High-performance high-entropy alloy material and preparation method thereof |
| CN116618434A (en) * | 2023-05-12 | 2023-08-22 | 华中科技大学 | High-entropy alloy layered composite material and preparation method thereof |
| CN116618434B (en) * | 2023-05-12 | 2024-03-26 | 华中科技大学 | High-entropy alloy layered composite material and preparation method thereof |
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