CN112695226A - High-strength corrosion-resistant copper alloy composite material and preparation method and application thereof - Google Patents
High-strength corrosion-resistant copper alloy composite material and preparation method and application thereof Download PDFInfo
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- CN112695226A CN112695226A CN202011479464.7A CN202011479464A CN112695226A CN 112695226 A CN112695226 A CN 112695226A CN 202011479464 A CN202011479464 A CN 202011479464A CN 112695226 A CN112695226 A CN 112695226A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
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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
- C22C1/1094—Alloys containing non-metals comprising an after-treatment
-
- 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
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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
- C22C32/0021—Matrix based on noble metals, Cu 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
-
- 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
- C22C32/0068—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 nitrides
-
- 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
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
The invention discloses a high-strength corrosion-resistant copper alloy composite material which comprises the following components in percentage by weight: 92-98% of brass powder and 2-8% of ceramic powder, and performing ball milling or spray drying to obtain composite powder, and sequentially performing primary rolling-annealing-secondary rolling-annealing to the mixed powder to obtain the copper alloy composite material. The invention obtains the copper alloy material with high strength, good heat-conducting property and prominent corrosion resistance by reasonably regulating and controlling the components of the composite material.
Description
Technical Field
The invention relates to the technical field of alloy materials, in particular to a high-strength corrosion-resistant copper alloy composite material and a preparation method and application thereof.
Background
The plate heat exchanger is used as a high-efficiency and compact heat exchange device and is widely applied to the fields of metallurgy, medicine, chemical industry and the like. The fluid realizes cold and heat exchange through the turbulent flow of the narrow gaps between the plate heat exchanger plates, thereby achieving the heat exchange effect. The heat exchanger plate is an important structural component in a plate heat exchanger, and needs to have high heat conductivity, good corrosion resistance and excellent mechanical properties.
At present, the main raw material for manufacturing the plate heat exchanger plate is titanium alloy or stainless steel, but the titanium alloy has relatively high cost, the supply and demand relationship of the raw material is tight, the processing is relatively difficult, and the stainless steel is difficult to resist Cl in a cooling medium-Meanwhile, the surface of the stainless steel is easy to grow bacteria and scale, so that the heat exchange effect is influenced. The defects of high cost, easy corrosion and the like of the heat exchanger plate cause the application of the plate heat exchanger in the fields of petroleum, ocean engineering and the like to be limited.
Brass has the characteristics of good corrosion resistance, excellent heat conductivity, easy processing and the like, and is a heat conduction material widely applied to heat exchangers. However, the copper alloy materials related to the prior art are difficult to simultaneously consider various performances such as high heat conductivity, high strength, corrosion resistance and the like, the current production process of the copper alloy is still the traditional smelting-casting-annealing-forging process, the production efficiency of the process is low, the yield is low, the energy consumption is large, the continuous production is difficult to realize, or the production efficiency and the yield can be improved, but the alloy components and the feeding sequence are relatively complex.
Therefore, the problem to be solved by those skilled in the art is how to provide a copper alloy composite material with high thermal conductivity, high strength and corrosion resistance and a preparation method thereof.
Disclosure of Invention
In view of the above, the invention provides a copper alloy composite material with high strength, good heat conductivity and outstanding corrosion resistance.
In order to achieve the purpose, the invention adopts the following technical scheme:
the high-strength corrosion-resistant copper alloy composite material comprises the following components in percentage by weight:
brass powder 92-98%
2-8% of ceramic powder.
The mechanical property of the composite material is effectively improved by utilizing the dispersed distribution of the ceramic powder in the brass matrix; meanwhile, the dezincification corrosion of brass is effectively inhibited due to the dispersion distribution of the ceramic phase in the material matrix.
Preferably, in the above high-strength corrosion-resistant copper alloy composite material, the following components are included by weight percent:
95 to 97 percent of brass powder
3-5% of ceramic powder.
Preferably, in the above-mentioned one high-strength corrosion-resistant copper alloy composite material, the particle size of the brass powder is in the range of 50 to 200 μm.
The beneficial effects of the above technical scheme are: the brass powder in the particle size range has good fluidity and good formability, and can form a plate with higher density in the rolling forming process.
Preferably, in the above-mentioned one high-strength corrosion-resistant copper alloy composite material, the ceramic powder has a particle size in the range of 5 to 10 μm.
The beneficial effects of the above technical scheme are: the ceramic powder can be dispersed and distributed in the brass matrix, and plays a role in dispersion strengthening; meanwhile, the influence of the addition of the ceramic powder on the heat conductivity of the brass matrix is relatively small.
Preferably, in the above high-strength corrosion-resistant copper alloy composite material, the ceramic powder is any one or a mixture of several of BeO, BN, AlN and TiAlC.
The beneficial effects of the above technical scheme are: the ceramic powder has the characteristics of high thermal conductivity and high strength, and the powder is dispersed in the brass matrix, so that the mechanical property of the matrix is enhanced, and the thermal conductivity of the material is not reduced too much to influence the thermal conductivity of the material.
The invention also discloses a preparation method of the high-strength corrosion-resistant copper alloy composite material, which comprises the following steps:
(1) weighing the raw materials in proportion;
(2) mixing the brass powder and the ceramic powder, and then feeding the mixture into powder rolling equipment for primary rolling to obtain a copper strip;
(3) carrying out primary annealing treatment on the copper strip obtained in the step (2);
(4) carrying out secondary rolling on the copper strip subjected to the primary annealing treatment;
(5) carrying out secondary annealing treatment on the copper strip subjected to secondary rolling to obtain a copper alloy composite material;
preferably, in the above preparation method of the high-strength corrosion-resistant copper alloy composite material, the temperature of the primary annealing treatment in the step (3) is 600-800 ℃, and the annealing time is 1-2 h.
The beneficial effects of the above technical scheme are: the preparation method can effectively eliminate stress introduced by rolling, promote metallurgical bonding among copper alloy powder and improve the mechanical property of the material; too low annealing temperature will result in insufficient metallurgical bonding between the copper alloy powders and reduced mechanical properties, while too high annealing temperature will result in solid solution of the precipitated phase inside the brass powder and reduced thermal conductivity.
Preferably, in the above method for preparing a high-strength corrosion-resistant copper alloy composite material, the rolling in step (4) is cold rolling at room temperature, and the deformation amount is 50% of the thickness of the copper strip obtained by one-time rolling.
The beneficial effects of the above technical scheme are: the cold rolling treatment at room temperature can promote the strong plastic deformation of the copper alloy, further promote the metallurgical bonding between the powders, and effectively prevent the oxidation of the strip due to the low rolling treatment temperature.
Preferably, in the above preparation method of the high-strength corrosion-resistant copper alloy composite material, the temperature of the secondary annealing in the step (5) is 300-400 ℃, and the annealing time is 2-3 h.
The beneficial effects of the above technical scheme are: the annealing condition can effectively eliminate rolling stress and improve the heat conductivity and comprehensive mechanical property of the material; too low a temperature makes it difficult to achieve stress relief, while too high a temperature leads to a reduction in the strength of the material due to recrystallization.
The high-strength corrosion-resistant copper alloy composite material is applied to the plate heat exchanger, and the problem that the copper alloy material for the plate heat exchanger in the prior art is difficult to simultaneously give consideration to high heat conduction, high strength and corrosion resistance can be effectively solved.
According to the technical scheme, compared with the prior art, the invention discloses a high-strength corrosion-resistant copper alloy composite material and a preparation method thereof, and the composite material has the following advantages:
(1) according to the invention, from the perspective of improving material performance, brass and high-thermal-conductivity ceramic powder are taken as raw materials, and a copper alloy composite material with high-thermal-conductivity ceramic powder dispersed in a copper alloy matrix is obtained through a process of combining powder rolling with annealing treatment, so that the copper alloy material with high strength, good thermal conductivity and outstanding corrosion resistance is obtained through reasonable regulation and control of the components of the composite material;
(2) the copper alloy composite material prepared by the method has simple components and is easy to control, and the high-efficiency, low-energy consumption and high-yield production of the high-strength corrosion-resistant copper alloy composite material for the plate heat exchanger is realized through the processes of combining powder rolling with annealing and the like;
(3) the copper alloy composite material prepared by the invention effectively improves the strength of the alloy and effectively inhibits the dezincification corrosion of brass because the high-thermal-conductivity ceramic forms dispersion strengthening in the alloy matrix, and simultaneously has small influence on the thermal conductivity of the brass matrix because the ceramic particles in dispersion distribution have the characteristic of high thermal conductivity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A high-strength corrosion-resistant copper alloy composite material is prepared by the following method:
(1) mixing the materials according to the percentage of each element, wherein the percentage of H96 brass powder is 95 percent, and the percentage of AlN powder is 5 percent;
(2) grinding the two powders by a ball milling method and uniformly mixing;
(3) putting the mixed powder into powder rolling equipment for primary rolling to obtain a copper strip;
(4) carrying out primary annealing treatment on the copper strip, wherein the heating temperature is 700-750 ℃, and the heat preservation time is 1.5 h;
(5) guiding the copper strip subjected to the primary annealing treatment into a roller for secondary rolling to obtain a copper strip with the thickness of 2 mm;
(6) carrying out secondary annealing treatment on the copper strip subjected to secondary rolling, wherein the heating temperature is 350-400 ℃, and the heat preservation time is 2.5 h;
(7) cleaning the surface of the copper strip, and then punching and forming the copper strip by using a punch press to obtain a final product, wherein the hardness of the product is 630HV, the tensile strength is 510MPa, the thermal conductivity is 52% IACS, and the weight of the product is increased by 0.01g/m in 10 days of salt spray corrosion2。
Example 2
A high-strength corrosion-resistant copper alloy composite material is prepared by the following method:
(1) mixing 97% of H96 brass powder and 3% of BN powder according to the percentage of each element;
(2) grinding the two powders by a ball milling method and uniformly mixing;
(3) putting the mixed powder into powder rolling equipment for primary rolling to obtain a copper strip;
(4) carrying out primary annealing treatment on the copper strip, wherein the heating temperature is 750-800 ℃, and the heat preservation time is 1 h;
(5) guiding the copper strip subjected to the primary annealing treatment into a roller for secondary rolling to obtain a copper strip with the thickness of 1.5 mm;
(6) carrying out secondary annealing treatment on the copper strip subjected to secondary rolling, wherein the heating temperature is 300-350 ℃, and the heat preservation time is 2.5 h;
(7) cleaning the surface of the copper strip, and then punching and forming the copper strip by using a punch press to obtain a final product, wherein the hardness of the product is 570HV, the tensile strength is 480MPa, the thermal conductivity is 65% IACS, and the weight of the product is increased by 0.013g/m in 17 days due to salt spray corrosion2。
Example 3
A high-strength corrosion-resistant copper alloy composite material is prepared by the following method:
(1) proportioning according to the percentage of each element, H96 brass powder 98 percent, Ti22% of AlC powder;
(2) grinding the two powders by a ball milling method and uniformly mixing;
(3) putting the mixed powder into powder rolling equipment for primary rolling to obtain a copper strip;
(4) carrying out primary annealing treatment on the copper strip, wherein the heating temperature is 600-650 ℃, and the heat preservation time is 2 hours;
(5) guiding the copper strip subjected to the primary annealing treatment into a roller for secondary rolling to obtain a copper strip with the thickness of 1 mm;
(6) carrying out secondary annealing treatment on the copper strip subjected to secondary rolling, wherein the heating temperature is 300-330 ℃, and the heat preservation time is 3 h;
(7) cleaning the surface of the copper strip, and then punching and forming the copper strip by using a punch press to obtain a final product, wherein the hardness of the product is 523HV, the tensile strength is 495MPa, the thermal conductivity is 66% IACS, and the salt spray corrosion weight is increased by 0.017g/m in 25 days2。
Example 4
A high-strength corrosion-resistant copper alloy composite material is prepared by the following method:
(1) mixing the materials according to the percentage of each element, wherein H96 brass powder accounts for 97.5 percent, and BeO powder accounts for 2.5 percent;
(2) grinding the two powders by a ball milling method and uniformly mixing;
(3) putting the mixed powder into powder rolling equipment for primary rolling to obtain a copper strip;
(4) carrying out primary annealing treatment on the copper strip, wherein the heating temperature is 650-750 ℃, and the heat preservation time is 1.5 h;
(5) guiding the copper strip subjected to the primary annealing treatment into a roller for secondary rolling to obtain a copper strip with the thickness of 2.5 mm;
(6) carrying out secondary annealing treatment on the copper strip subjected to secondary rolling, wherein the heating temperature is 370-400 ℃, and the heat preservation time is 3 h;
(7) cleaning the surface of the copper strip, and then punching and forming the copper strip by using a punch press to obtain a final product, wherein the hardness of the product is 610HV, the tensile strength is 539MPa, the thermal conductivity is 61% IACS, and the weight of the salt spray corrosion is increased by 0.025g/m in 31 days2。
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the scheme disclosed by the embodiment, the scheme corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The high-strength corrosion-resistant copper alloy composite material is characterized by comprising the following components in percentage by weight:
brass powder 92-98%
2-8% of ceramic powder.
2. The high-strength corrosion-resistant copper alloy composite material according to claim 1, comprising the following components in percentage by weight:
95 to 97 percent of brass powder
3-5% of ceramic powder.
3. The high strength corrosion resistant copper alloy composite according to claim 1 or 2, wherein the brass powder has a particle size in the range of 50-200 μm.
4. The high strength corrosion resistant copper alloy composite according to claim 1 or 2, wherein the ceramic powder has a particle size in the range of 5 to 10 μm.
5. The high-strength corrosion-resistant copper alloy composite material according to claim 1 or 2, wherein the ceramic powder is any one or a mixture of BeO, BN, AlN and TiAl C.
6. A method for preparing the high-strength corrosion-resistant copper alloy composite material according to any one of claims 1 to 5, comprising the steps of:
(1) weighing the raw materials in proportion;
(2) mixing the brass powder and the ceramic powder, and then feeding the mixture into powder rolling equipment for primary rolling to obtain a copper strip;
(3) carrying out primary annealing treatment on the copper strip obtained in the step (2);
(4) carrying out secondary rolling on the copper strip subjected to the primary annealing treatment;
(5) and carrying out secondary annealing treatment on the copper strip subjected to secondary rolling to obtain the copper alloy composite material.
7. The method as claimed in claim 6, wherein the temperature of the primary annealing treatment in step (3) is 600-800 ℃, and the annealing time is 1-2 h.
8. The method for preparing the high-strength corrosion-resistant copper alloy composite material as claimed in claim 6, wherein the secondary rolling in the step (4) is room-temperature cold rolling, and the deformation amount is 50% of the thickness of the copper strip obtained by the primary rolling.
9. The method as claimed in claim 6, wherein the temperature of the secondary annealing in step (5) is 300-400 ℃, and the annealing time is 2-3 h.
10. Use of a high strength corrosion resistant copper alloy composite according to any one of claims 1 to 5 in a plate heat exchanger.
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|---|---|---|---|---|
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| KR890000680A (en) * | 1987-06-13 | 1989-03-15 | 풍산금속 공업주식회사 | Manufacturing method of high strength, high elasticity, high heat resistant copper alloy and copper alloy plate |
| JPH0488137A (en) * | 1990-07-31 | 1992-03-23 | Chuetsu Gokin Chuko Kk | Wear resistant and seizing resistant copper alloy matrix composite |
| US20030207142A1 (en) * | 2002-05-03 | 2003-11-06 | Honeywell International, Inc | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors |
| CN101624667A (en) * | 2009-08-11 | 2010-01-13 | 路达(厦门)工业有限公司 | Sintered leadless free-cutting brass and preparation method thereof |
| CN104942268A (en) * | 2015-05-11 | 2015-09-30 | 北京科技大学 | Preparation method of copper-based titanium carbide/aluminum oxide surface particle strengthening composite material |
| CN105220000A (en) * | 2015-10-30 | 2016-01-06 | 苏州列治埃盟新材料技术转移有限公司 | A kind of high strength titanium diboride particle enhanced copper-based composite material and preparation method thereof |
| CN109182816A (en) * | 2018-11-02 | 2019-01-11 | 蚌埠学院 | A kind of Cu-Ti3AlC2Composite material and preparation method |
| CN111004941A (en) * | 2019-12-26 | 2020-04-14 | 西南科技大学 | Corrosion-resistant copper alloy material for plate heat exchanger and preparation method thereof |
| CN111118336A (en) * | 2019-12-17 | 2020-05-08 | 宁波公牛电器有限公司 | Corrosion-resistant high-elasticity copper alloy plug bush material and preparation method thereof |
-
2020
- 2020-12-15 CN CN202011479464.7A patent/CN112695226B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1120299A (en) * | 1965-10-04 | 1968-07-17 | Metco Inc | Improved flame spray powder |
| KR890000680A (en) * | 1987-06-13 | 1989-03-15 | 풍산금속 공업주식회사 | Manufacturing method of high strength, high elasticity, high heat resistant copper alloy and copper alloy plate |
| JPH0488137A (en) * | 1990-07-31 | 1992-03-23 | Chuetsu Gokin Chuko Kk | Wear resistant and seizing resistant copper alloy matrix composite |
| US20030207142A1 (en) * | 2002-05-03 | 2003-11-06 | Honeywell International, Inc | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors |
| CN101624667A (en) * | 2009-08-11 | 2010-01-13 | 路达(厦门)工业有限公司 | Sintered leadless free-cutting brass and preparation method thereof |
| CN104942268A (en) * | 2015-05-11 | 2015-09-30 | 北京科技大学 | Preparation method of copper-based titanium carbide/aluminum oxide surface particle strengthening composite material |
| CN105220000A (en) * | 2015-10-30 | 2016-01-06 | 苏州列治埃盟新材料技术转移有限公司 | A kind of high strength titanium diboride particle enhanced copper-based composite material and preparation method thereof |
| CN109182816A (en) * | 2018-11-02 | 2019-01-11 | 蚌埠学院 | A kind of Cu-Ti3AlC2Composite material and preparation method |
| CN111118336A (en) * | 2019-12-17 | 2020-05-08 | 宁波公牛电器有限公司 | Corrosion-resistant high-elasticity copper alloy plug bush material and preparation method thereof |
| CN111004941A (en) * | 2019-12-26 | 2020-04-14 | 西南科技大学 | Corrosion-resistant copper alloy material for plate heat exchanger and preparation method thereof |
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