CN112046099A - Preparation method of high-bonding-strength low-density magnesium-lithium/titanium composite board - Google Patents
Preparation method of high-bonding-strength low-density magnesium-lithium/titanium composite board Download PDFInfo
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- GCICAPWZNUIIDV-UHFFFAOYSA-N lithium magnesium Chemical compound [Li].[Mg] GCICAPWZNUIIDV-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000002131 composite material Substances 0.000 title claims abstract description 38
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000010936 titanium Substances 0.000 title claims abstract description 18
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000001989 lithium alloy Substances 0.000 claims abstract description 56
- 229910000733 Li alloy Inorganic materials 0.000 claims abstract description 55
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 55
- 238000005275 alloying Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000009792 diffusion process Methods 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 11
- 239000010439 graphite Substances 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 239000011812 mixed powder Substances 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000005498 polishing Methods 0.000 claims abstract description 7
- 239000002086 nanomaterial Substances 0.000 claims abstract description 4
- DTIDNPAOFJIAEN-UHFFFAOYSA-N [Ti].[Mg].[Li] Chemical compound [Ti].[Mg].[Li] DTIDNPAOFJIAEN-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000713 high-energy ball milling Methods 0.000 abstract 1
- 238000004506 ultrasonic cleaning Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 30
- 230000005540 biological transmission Effects 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 238000001878 scanning electron micrograph Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910019400 Mg—Li Inorganic materials 0.000 description 1
- 238000003917 TEM image Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011156 metal matrix composite Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 238000007709 nanocrystallization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/08—Interconnection of layers by mechanical means
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a preparation method of a high-bonding-strength low-density magnesium-lithium/titanium composite board, which comprises the following steps: plate preparation and surface pretreatment: cutting the magnesium-lithium alloy and titanium alloy plate into round plates, polishing the surface by using abrasive paper, then carrying out ultrasonic cleaning for 5-10min and drying; carrying out surface nano-alloying treatment on the pretreated plate: putting two plates, mixed powder consisting of 1-8g of Zn, Zr and Al and 20-40 steel balls into a ball milling tank, and forming a Zn-Zr-Al alloying layer with a nano structure on the surfaces of the two plates after 1-3h of high-energy ball milling treatment; SPS diffusion welding: the two plates with the nano-alloyed surfaces are placed in a graphite die to be compressed, then the two plates are placed in an SPS sintering furnace to be heated to 400-550 ℃ and kept for 0.5-2h, and then the two plates are cooled to be below 100 ℃ along with the furnace to be taken out of the composite plate. The preparation method of the magnesium-lithium-titanium composite board with high bonding strength and low density has the advantages of simple process, short time consumption, high production efficiency and the like.
Description
Technical Field
The invention relates to the field of preparation of metal matrix composite materials, in particular to a preparation method of a high-bonding-strength and low-density magnesium-lithium/titanium composite board.
Background
With the rapid development of industrial technology, the performance requirements of modern engineering on a plurality of metal materials are more and more strict, and the original single material cannot meet the requirements of the development of modern industry. Therefore, welding two or more metal materials to form a composite plate material has been a hot research. The magnesium-lithium alloy is used as the lightest metal structure material at present, and has wide application prospect in the fields of aerospace, automobiles, electronics, military and the like. But the application range of the alloy is greatly limited due to the defects of low surface hardness, extremely high chemical activity, poor corrosion resistance and the like. Titanium alloy is greatly favored in the fields of aerospace and ocean because of its characteristics of high specific strength, excellent corrosion resistance and the like. Therefore, if the magnesium-lithium alloy and the titanium alloy can be welded to form the composite board material, the advantages of the two alloys are fully exerted, and the material has the advantages of high strength, light weight and the like, so that the composite board material can be widely applied to related fields.
Diffusion welding is one of the important welding methods, and has the advantages of high welding quality, no need of processing after welding, automation realization, no plastic deformation and the like. However, in the diffusion welding process of magnesium-lithium alloy and titanium alloy, the welding is extremely difficult due to the remarkable physical and chemical property difference between the magnesium-lithium alloy and the titanium alloy, and the following two difficulties mainly exist: (1) the difference of the melting points of the titanium alloy and the magnesium-lithium alloy is close to 1000 ℃, and if the welding temperature is too high, the magnesium-lithium alloy is already molten; (2) the solid solubility between titanium and magnesium is very low, and the two atoms are difficult to diffuse, so that the bonding strength of the two atoms is very low. In order to solve the above problems, researchers often weld dissimilar metals together by means of explosion welding, laser welding, and the like. The research methods effectively improve the welding quality, but have some disadvantages, such as dangerous working environment, expensive equipment and the like. Therefore, at present, a welding process of the magnesium-lithium alloy and the titanium alloy plate, which is simple in process and can obtain high bonding strength, does not exist.
Disclosure of Invention
The invention aims to provide a preparation method of a high-bonding-strength low-density magnesium-lithium/titanium composite board, which can solve the technical problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation method of a high-bonding-strength low-density magnesium-lithium/titanium composite board comprises the following steps:
(1) plate preparation and surface pretreatment: respectively cutting the magnesium-lithium alloy plate and the titanium alloy plate into round plates by linear cutting, polishing the surfaces of the round plates by abrasive paper, then sequentially placing the round plates in distilled water and absolute ethyl alcohol for ultrasonic vibration washing for 5-10min, and drying the round plates to obtain pretreated plates;
(2) carrying out surface nano alloying treatment on the pretreated plate: respectively carrying out surface nano-alloying treatment on the pretreated plates;
(3) SPS diffusion welding: placing the magnesium-lithium alloy plate and the titanium alloy plate subjected to surface nano alloying treatment in a prepared graphite mold for compaction, then placing the magnesium-lithium alloy plate and the titanium alloy plate in an SPS sintering furnace, heating to 400-550 ℃, raising the temperature at a rate of 20-50 ℃/min, reducing the vacuum degree in the furnace to 10-20Pa, carrying out diffusion and heat preservation for 0.5-2h, then cooling to below 100 ℃ along with the furnace, and taking out the composite plate subjected to diffusion welding, namely the high-strength low-density magnesium-lithium-titanium composite plate.
Preferably, in the step (1), the radii of the magnesium-lithium alloy plate raw plate and the titanium alloy plate circular plate are both 25-35mm, and the thicknesses are 3-6mm and 1-4mm respectively.
Preferably, in the step (2), the specific surface nano alloying treatment method comprises the following steps of placing the pretreated magnesium-lithium alloy and titanium alloy plates into two high-energy ball mill auxiliary ball milling tanks, placing steel balls, simultaneously placing 1-8g of mixed powder consisting of Zn, Zr and Al, setting the ultrasonic vibration frequency of a vibration head to be 30-60Hz, driving the steel balls to impact the surfaces of the pretreated two materials through ultrasonic vibration for 1-3h, and finally obtaining a nano-structure Zn-Zr-Al alloying layer with a certain thickness on the surfaces of the two materials.
Preferably, the diameter of the steel balls is 2-8mm, and the number of the steel balls is 20-40.
Preferably, the weight ratio of Zn, Zr and Al in the mixed powder is 1-3:1-6: 1-4.
Preferably, in the step (3), the pressure of the sintering furnace is set to be 10-30 KN.
Compared with the prior art, the invention has the beneficial effects that:
the invention firstly adopts the technical means of surface nano-alloying to prepare a Zn-Zr-Al alloying layer with a certain thickness and a nano structure which is well combined with a matrix on the surfaces of magnesium-lithium alloy and titanium alloy, and then the two plates are put into an SPS sintering furnace for diffusion welding. On one hand, the obtained Zn-Zr-Al alloying layer is used as an intermediate layer, and the advantage that three elements of Zn, Zr and Al have higher solubility in a magnesium matrix and a titanium matrix is utilized, so that the intermediate layer is diffused into two matrix materials during diffusion welding to improve the bonding force. Moreover, after the surface nanocrystallization alloying treatment, the crystal grains of the magnesium-lithium alloy, the intermediate layer and the titanium alloy are all in a nanoscale, and due to the high activity and the high atom diffusion speed of the nanocrystals, the diffusion welding temperature can be reduced, and the diffusion rate of atoms in the intermediate layer to the two substrates is higher and the diffusion distance is longer. On the other hand, by means of the plasma effect of the SPS sintering furnace, the oxide film formed in the surface nano-alloying process of the intermediate layer can be broken down, so that the surface of the intermediate layer is purified and activated. And due to the combined action of activation and rapid temperature rise of the plasma, the growth of crystal grains is inhibited, the nano microstructures of the magnesium-lithium alloy, the intermediate layer and the titanium alloy are reserved, and the atomic diffusion rate between the interfaces of the composite plate is further improved. The method provided by the invention has the advantages of simple process, short time consumption, high production efficiency and the like.
Drawings
FIG. 1 is a SEM image of a magnesium-lithium alloy surface nano-alloyed layer prepared in example 2 of the present invention;
FIG. 2 is a SEM image of a nano-alloyed layer on the surface of a titanium alloy prepared in example 2 of the present invention;
FIG. 3 is a TEM image of the nano-alloyed layer on the surface of the magnesium-lithium alloy prepared in example 2 of the present invention;
FIG. 4 is a TEM morphology photograph of a nano-alloyed layer on the surface of the titanium alloy prepared in example 2 of the present invention;
FIG. 5 is a schematic representation of a composite sheet material prepared in example 2 of the present invention;
FIG. 6 is an SEM image of the interface between the Mg-Li alloy and the alloying layer in the composite plate material prepared in example 2 of the present invention;
FIG. 7 is an SEM image of the interface between the titanium alloy and the alloying layer in the composite plate material prepared in example 2 of the present invention;
FIG. 8 is a tensile load displacement curve of composite sheet material prepared in example 2 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 preparation method of a high-bonding-strength low-density magnesium-lithium/titanium composite board comprises the following steps:
(1) preparing a plate and performing surface pretreatment: cutting the magnesium-lithium alloy plate and the titanium alloy plate into circular plates with the radius of 32.5mm and the thicknesses of 5mm and 2mm respectively by linear cutting, polishing the surfaces of the circular plates by using abrasive paper, then placing the circular plates in distilled water and absolute ethyl alcohol in sequence, ultrasonically shaking and washing for 5-10min, and drying to obtain the pretreated plate.
(2) Carrying out surface nano alloying treatment on the magnesium-lithium alloy and titanium alloy plates: respectively carrying out surface nano alloying treatment on the magnesium-lithium alloy and the titanium alloy plates after pretreatment. Placing the pretreated magnesium-lithium alloy and titanium alloy plates into two auxiliary ball milling tanks of a high-energy ball mill, placing 30 steel balls with the diameter of 4mm, and simultaneously placing 3g of mixed powder of Zn, Zr and Al, wherein the weight ratio of Zn, Zr and Al is 1:1:1, setting the ultrasonic vibration frequency of a vibration head to be 50Hz, and driving the steel balls to impact the surfaces of the two pretreated materials by ultrasonic vibration for 2 hours. After treatment, the observation of a scanning electron microscope shows that about 40 mu m and 30 mu m thick alloying layers are formed on the surface layers of the magnesium-lithium alloy and the titanium alloy respectively, and the grain sizes of the alloying layers on the surface observed by the transmission electron microscope are 100nm and 120nm respectively.
(3) Placing the pretreated magnesium-lithium alloy plate and titanium alloy plate in a prepared graphite mould for compacting, then placing the graphite mould in an SPS sintering furnace, setting the pressure to be 30KN, heating to 425 ℃, heating up at the rate of 26.5 ℃/min, reducing the vacuum degree in the furnace to 10-20Pa, keeping the temperature for 1h, and then cooling to below 100 ℃ along with the furnace to take out the composite plate after diffusion.
The appearance shows that the composite plate is well combined, the interface combination condition of the magnesium-lithium alloy and the titanium alloy with the alloying layer is good, and the interface tensile test shows that the load when the interface is broken is 480 KN.
Example 2
A preparation method of a high-bonding-strength low-density magnesium-lithium/titanium composite board comprises the following steps:
(1) preparing a plate and performing surface pretreatment: cutting the magnesium-lithium alloy plate and the titanium alloy plate into circular plates with the radius of 32.5mm and the thicknesses of 5mm and 2mm respectively by linear cutting, polishing the surfaces of the circular plates by using abrasive paper, then placing the circular plates in distilled water and absolute ethyl alcohol in sequence, ultrasonically shaking and washing for 5-10min, and drying to obtain the pretreated plate.
(2) Carrying out surface nano alloying treatment on the magnesium-lithium alloy and titanium alloy plates: respectively carrying out surface nano alloying treatment on the magnesium-lithium alloy and the titanium alloy plates after pretreatment. Putting the pretreated magnesium-lithium alloy and titanium alloy plates into two auxiliary ball milling tanks of a high-energy ball mill, putting 20 steel balls with the diameter of 8mm, and simultaneously putting 5g of mixed powder of Zn, Zr and Al, wherein the weight ratio of Zn, Zr and Al is 3:2: 1. The ultrasonic vibration frequency of the vibration head is set to be 50Hz, the steel ball is driven to impact the surfaces of the two materials after pretreatment through ultrasonic vibration, and the treatment time is 3 h.
After the treatment, as shown in FIG. 1, the observation of a scanning electron microscope shows that an alloying layer with the thickness of about 50-75 μm is formed on the surface layer of the magnesium-lithium alloy; as shown in FIG. 3, the grain size of the surface alloyed layer observed by a transmission electron microscope is about 40 nm; as shown in FIG. 2, the observation of the scanning electron microscope showed that an alloyed layer having a thickness of about 30 to 50 μm was formed on the surface layer of the titanium alloy; as shown in FIG. 4, the grain size of the surface alloyed layer observed by a transmission electron microscope was about 45 nm.
(3) Placing the pretreated magnesium-lithium alloy plate and titanium alloy plate in a prepared graphite mould for compacting, then placing the graphite mould in an SPS sintering furnace, setting the pressure to be 30KN, heating to 475 ℃, increasing the temperature at 26.5 ℃/min, reducing the vacuum degree in the furnace to 10-20Pa, keeping the temperature for 2h, and then cooling to below 100 ℃ along with the furnace to take out the composite plate after diffusion.
As shown in fig. 5, the appearance indicates that the composite board bonded well; as shown in fig. 6 and 7, the interface bonding between the magnesium-lithium alloy and the titanium alloy and the alloying layer is good; as shown in fig. 8, the interfacial tension test showed a load at interfacial fracture of 580 KN.
Example 3
A preparation method of a high-bonding-strength low-density magnesium-lithium/titanium composite board comprises the following steps:
(1) preparing a plate and performing surface pretreatment: cutting the magnesium-lithium alloy plate and the titanium alloy plate into circular plates with the radius of 32.5mm and the thicknesses of 5mm and 2mm respectively by linear cutting, polishing the surfaces of the circular plates by using abrasive paper, then placing the circular plates in distilled water and absolute ethyl alcohol in sequence, ultrasonically shaking and washing for 5-10min, and drying to obtain the pretreated plate.
(2) Carrying out surface nano alloying treatment on the magnesium-lithium alloy and titanium alloy plates: respectively carrying out surface nano alloying treatment on the magnesium-lithium alloy and the titanium alloy plates after pretreatment. Putting the pretreated magnesium-lithium alloy and titanium alloy plates into two auxiliary ball milling tanks of a high-energy ball mill, putting 20 steel balls with the diameter of 6mm, and simultaneously putting 8g of mixed powder of Zn, Zr and Al, wherein the weight ratio of Zn, Zr and Al is 3:5: 1. The ultrasonic vibration frequency of the vibration head is set to be 50Hz, the steel ball is driven to impact the surfaces of the two materials after pretreatment through ultrasonic vibration, and the treatment time is 1 h. After treatment, the observation of a scanning electron microscope shows that about 90-micron and 60-micron thick alloying layers are formed on the surface layers of the magnesium-lithium alloy and the titanium alloy respectively, and the grain sizes of the alloying layers on the surface observed by the transmission electron microscope are 140nm and 130nm respectively.
(3) Placing the pretreated magnesium-lithium alloy plate and titanium alloy plate in a prepared graphite mould for compacting, then placing the graphite mould in an SPS sintering furnace, setting the pressure to be 30KN, heating the magnesium-lithium alloy plate and the titanium alloy plate to 500 ℃, heating the magnesium-lithium alloy plate and the titanium alloy plate at the rate of 26.5 ℃/min, reducing the vacuum degree in the furnace to 10-20Pa, keeping the temperature for 2h, and then cooling the magnesium-lithium alloy plate and the titanium alloy plate to below 100 ℃ along with the furnace to take out the composite plate after diffusion.
The appearance shows that the composite board is well combined, the interface combination condition of the magnesium-lithium alloy and the titanium alloy with the alloying layer is good, and the interface tensile test shows that the load when the interface is broken is 458 KN.
Example 4
A preparation method of a high-bonding-strength low-density magnesium-lithium/titanium composite board comprises the following steps:
(1) preparing a plate and performing surface pretreatment: cutting the magnesium-lithium alloy plate and the titanium alloy plate into circular plates with the radius of 32.5mm and the thicknesses of 5mm and 2mm respectively by linear cutting, polishing the surfaces of the circular plates by using abrasive paper, then placing the circular plates in distilled water and absolute ethyl alcohol in sequence, ultrasonically shaking and washing for 5-10min, and drying to obtain the pretreated plate.
(2) Carrying out surface nano alloying treatment on the magnesium-lithium alloy and titanium alloy plates: respectively carrying out surface nano alloying treatment on the magnesium-lithium alloy and the titanium alloy plates after pretreatment. Putting the pretreated magnesium-lithium alloy and titanium alloy plates into two auxiliary ball milling tanks of a high-energy ball mill, putting 20 steel balls with the diameter of 2mm, and simultaneously putting 3g of mixed powder of Zn, Zr and Al, wherein the weight ratio of Zn, Zr and Al is 3:5: 1. The ultrasonic vibration frequency of the vibration head is set to be 50Hz, the steel ball is driven to impact the surfaces of the two materials after pretreatment through ultrasonic vibration, and the treatment time is 1 h. After treatment, the observation of a scanning electron microscope shows that about 60 mu m and 45 mu m thick alloying layers are formed on the surface layers of the magnesium-lithium alloy and the titanium alloy respectively, and the grain sizes of the alloying layers on the surface observed by the transmission electron microscope are 80nm and 70nm respectively.
(3) Placing the pretreated magnesium-lithium alloy plate and titanium alloy plate in a prepared graphite mould for compacting, then placing the graphite mould in an SPS sintering furnace, setting the pressure to be 30KN, heating to 525 ℃, heating up at the rate of 26.5 ℃/min, reducing the vacuum degree in the furnace to 10-20Pa, keeping the temperature for 2h, and then cooling to below 100 ℃ along with the furnace to take out the composite plate after diffusion.
The appearance shows that the composite plate is well combined, the interface combination condition of the magnesium-lithium alloy and the titanium alloy with the alloying layer is good, and the interface tensile test shows that the load when the interface is broken is 525 KN.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (6)
1. A preparation method of a high-bonding-strength low-density magnesium-lithium/titanium composite board is characterized by comprising the following steps:
(1) plate preparation and surface pretreatment: respectively cutting the magnesium-lithium alloy plate and the titanium alloy plate into round plates by linear cutting, polishing the surfaces of the round plates by abrasive paper, then sequentially placing the round plates in distilled water and absolute ethyl alcohol for ultrasonic vibration washing for 5-10min, and drying the round plates to obtain pretreated plates;
(2) carrying out surface nano alloying treatment on the pretreated plate: respectively carrying out surface nano-alloying treatment on the pretreated plates;
(3) SPS diffusion welding: placing the magnesium-lithium alloy plate and the titanium alloy plate subjected to surface nano alloying treatment in a prepared graphite mold for compaction, then placing the magnesium-lithium alloy plate and the titanium alloy plate in an SPS sintering furnace, heating to 400-550 ℃, raising the temperature at a rate of 20-50 ℃/min, reducing the vacuum degree in the furnace to 10-20Pa, carrying out diffusion and heat preservation for 0.5-2h, then cooling to below 100 ℃ along with the furnace, and taking out the composite plate subjected to diffusion welding, namely the high-strength low-density magnesium-lithium-titanium composite plate.
2. The method for preparing the high-bonding-strength low-density magnesium-lithium/titanium composite board according to claim 1, wherein the method comprises the following steps: in the step (1), the radiuses of the magnesium-lithium alloy plate raw plate and the titanium alloy plate circular plate are both 25-35mm, and the thicknesses of the magnesium-lithium alloy plate raw plate and the titanium alloy plate circular plate are respectively 3-6mm and 1-4 mm.
3. The method for preparing the high-bonding-strength low-density magnesium-lithium/titanium composite board according to claim 1, wherein the method comprises the following steps: in the step (2), the specific method for surface nano alloying treatment is as follows, the magnesium-lithium alloy and titanium alloy plates after pretreatment are placed in two ball milling tanks attached to a high-energy ball mill, steel balls are placed, 1-8g of mixed powder consisting of Zn, Zr and Al is placed at the same time, the ultrasonic vibration frequency of a vibration head is set to be 30-60Hz, the steel balls are driven by ultrasonic vibration to impact the surfaces of the two materials after pretreatment, the treatment time is 1-3h, and finally a nano-structure Zn-Zr-Al alloying layer with a certain thickness is obtained on the surfaces of the two materials.
4. The method for preparing the high-bonding-strength low-density magnesium-lithium/titanium composite board according to claim 3, wherein the method comprises the following steps: the diameter of the steel balls is 2-8mm, and the number of the steel balls is 20-40.
5. The method for preparing the high-bonding-strength low-density magnesium-lithium/titanium composite board according to claim 3, wherein the method comprises the following steps: the weight ratio of Zn, Zr and Al in the mixed powder is 1-3:1-6: 1-4.
6. The method for preparing the high-bonding-strength low-density magnesium-lithium/titanium composite board according to claim 1, wherein the method comprises the following steps: in the step (3), the pressure of the sintering furnace is set to be 10-30 KN.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643462A (en) * | 2022-05-20 | 2022-06-21 | 太原理工大学 | Titanium alloy/stainless steel composite board and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1186924A (en) * | 1966-06-24 | 1970-04-08 | Onera (Off Nat Aerospatiale) | Process for Forming Surface Diffusion Alloys on Refractory Metal Members |
| JPH0610113A (en) * | 1992-06-29 | 1994-01-18 | Tamaki Gangu Kk | Method for strengtheing, hardening and joining titanium or titanium alloy |
| CN1765560A (en) * | 2005-11-29 | 2006-05-03 | 西北工业大学 | Magnesium alloy and titanium alloy diffusion welding method |
| CN101530947A (en) * | 2009-04-08 | 2009-09-16 | 西安交通大学 | Method for preparing bimetal composite plate by stirring friction braze welding |
| CN102423829A (en) * | 2011-09-22 | 2012-04-25 | 湖北工业大学 | Resistor spot welding process method for powder filled between titanium alloy and magnesium alloy |
| CN107175398A (en) * | 2017-06-28 | 2017-09-19 | 合肥工业大学 | A kind of SPS diffusion welding methods of molybdenum alloy and tungsten alloy |
| CN109986231A (en) * | 2019-05-16 | 2019-07-09 | 河北工业大学 | A kind of high-intensitive aluminium containing middle layer/magnesium different alloys connector and preparation method thereof |
| CN111054926A (en) * | 2019-12-03 | 2020-04-24 | 同济大学 | Zn solder reinforced interface aluminum/magnesium/aluminum composite board and powder hot-pressing preparation method |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1186924A (en) * | 1966-06-24 | 1970-04-08 | Onera (Off Nat Aerospatiale) | Process for Forming Surface Diffusion Alloys on Refractory Metal Members |
| JPH0610113A (en) * | 1992-06-29 | 1994-01-18 | Tamaki Gangu Kk | Method for strengtheing, hardening and joining titanium or titanium alloy |
| CN1765560A (en) * | 2005-11-29 | 2006-05-03 | 西北工业大学 | Magnesium alloy and titanium alloy diffusion welding method |
| CN101530947A (en) * | 2009-04-08 | 2009-09-16 | 西安交通大学 | Method for preparing bimetal composite plate by stirring friction braze welding |
| CN102423829A (en) * | 2011-09-22 | 2012-04-25 | 湖北工业大学 | Resistor spot welding process method for powder filled between titanium alloy and magnesium alloy |
| CN107175398A (en) * | 2017-06-28 | 2017-09-19 | 合肥工业大学 | A kind of SPS diffusion welding methods of molybdenum alloy and tungsten alloy |
| CN109986231A (en) * | 2019-05-16 | 2019-07-09 | 河北工业大学 | A kind of high-intensitive aluminium containing middle layer/magnesium different alloys connector and preparation method thereof |
| CN111054926A (en) * | 2019-12-03 | 2020-04-24 | 同济大学 | Zn solder reinforced interface aluminum/magnesium/aluminum composite board and powder hot-pressing preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 孙建春: "工业纯铁表面纳米合金化改性及原子扩散行为研究", 中国博士学位论文全文数据库 工程科技I辑, pages 1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643462A (en) * | 2022-05-20 | 2022-06-21 | 太原理工大学 | Titanium alloy/stainless steel composite board and preparation method thereof |
| CN114643462B (en) * | 2022-05-20 | 2022-08-16 | 太原理工大学 | Titanium alloy/stainless steel composite board and preparation method thereof |
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