CN104342606A - Device and method for manufacturing amorphous alloy wires - Google Patents
Device and method for manufacturing amorphous alloy wires Download PDFInfo
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- CN104342606A CN104342606A CN201310329848.4A CN201310329848A CN104342606A CN 104342606 A CN104342606 A CN 104342606A CN 201310329848 A CN201310329848 A CN 201310329848A CN 104342606 A CN104342606 A CN 104342606A
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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
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- 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
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
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Abstract
The invention provides a device and method for manufacturing amorphous alloy wires. The device comprises a vacuum chamber, a clamping device, a heating device and a balancing weight. The clamping device is arranged in the vacuum chamber and is used for clamping an amorphous alloy base material; the heating device is used for heating the amorphous alloy base material to a supercooled liquid phase area; and the balancing weight is used for being connected to the lower end of the amorphous alloy base material so as to pull the amorphous alloy base material in the supercooled liquid phase area into the amorphous alloy wire.
Description
Technical field
The invention belongs to field of material technology, particularly relate to the preparation of amorphous alloy material.
Background technology
Non-crystaline amorphous metal adopts the one of modern metallurgical technology synthesis more much higher than plain metal intensity, and have the novel alloy material of the characteristics such as snappiness low modulus.First non-crystaline amorphous metal is that the people such as Du Weizi in the sixties in 20th century by California Institute of Technology succeeds in developing.They adopt a kind of fast solidification technology, the obtained Au-Si metallic glass of method (quench) that alloy melt cools fast with the speed of 1,000,000 degree per second.By superalloy liquation, be ejected on the cooling copper roller of high speed rotating, melt is cooled fast, so that the disordered structure of metal melt Atom has little time to reset, thus obtain non-crystaline amorphous metal.
After this, people obtain the non-crystaline amorphous metal of a lot of different system and kind, have accumulated the mass data of this material in Science and engineering, and are applied in many fields.Non-crystaline amorphous metal has a lot of unique mechanics and functional performance, and surperficial ultra-smooth amorphous alloy wire causes the great interest of people especially.At present, wire and glass yarn cause people's interest widely in engineer applied and scientific research.
Current prepare surface ultra-smooth amorphous alloy wire method has water spinning, melt gets rid of Si Fa and by quick traction method etc.But these methods prepare that Nanoscale Surface ultra-smooth amorphous alloy wire preparation efficiency wiry is much lower compared with the preparation of glass yarn, and preparation cost is also much high, and amorphous alloy wire dimensional controllability wiry and surface quality can not show a candle to glass yarn.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or at least provides a kind of useful business to select.
For this reason, one object of the present invention be propose a kind of have simple to operate, efficiency is high, cost is low and the equipment preparing amorphous alloy wire that dimensional controllability is high.
Another object of the present invention is to propose a kind of method preparing amorphous alloy wire that preparation method is simple, efficiency is high, cost is low.
Spider silk especially its traction fiber (dragline silk) has silk and the incomparable advantage of general synthon in mechanical property.Be mainly manifested in that intensity is high, good springiness, initial modulus are large, work of rupture is large, it is the most tough known up to now material, and its specific tenacity is 5 times of steel, and toughness is 3 times of aramid fiber Kevlar.This kind of material is described as " biological steel " (Biosteel) abroad, has huge potential use in the field such as aeronautical material, matrix material, can be used as parachute silk, flak jackets, surgical sewing thread etc.The present inventor on this basis, have studied and utilizes bionical spider to weave silk method to prepare amorphous alloy wire, thus complete the present invention.
The equipment preparing amorphous alloy wire of embodiment, comprising: vacuum chamber according to a first aspect of the present invention; Clamping device, described clamping device is arranged in described vacuum chamber for clamping non-crystaline amorphous metal base material; Heating unit, described heating unit is used for described non-crystaline amorphous metal base material to be heated to supercooling liquid phase region; And balancing weight, described balancing weight for being connected to the lower end of described non-crystaline amorphous metal base material, so that the non-crystaline amorphous metal base material being in supercooling liquid phase region is pulled into described amorphous alloy wire.
According to the equipment preparing amorphous alloy wire of the embodiment of the present invention, after non-crystaline amorphous metal base material is heated to supercooled liquid district, it is made viscous deformation to occur to carry out wire drawing at gravity traction, this make use of bionical spider and to weave silk method, the opportunity of wire drawing is not human intervention, but silk pulls out and elongates by the gravity that make use of base material itself (if desired and be equipped with balancing weight), thus obtain the surperficial ultra-smooth amorphous alloy wire of micro-nano-scale.
According to embodiments of the invention, described heating unit comprises high-frequency induction heating coil and/or resistance heading furnace.
In some embodiments of the invention, described equipment also comprises: vaccum-pumping equipment, and described vaccum-pumping equipment is connected with described vacuum chamber, provides vacuum environment for described vacuum chamber.
In examples more of the present invention, described vaccum-pumping equipment comprises mechanical pump and molecular pump, wherein, described mechanical pump is used for providing primary vacuum environment for described vacuum chamber, described molecular pump is used for providing ultimate vacuum environment for described vacuum chamber, and the vacuum tightness of described ultimate vacuum environment is greater than the vacuum tightness of described primary vacuum environment.
In some embodiments of the invention, described equipment also comprises: high pressure argon gas source, and described high pressure argon gas source is connected with described vacuum chamber upper end by charging valve, passes into high pressure argon gas source for from described vacuum chamber upper end in described vacuum chamber.
In some embodiments of the invention, described equipment also comprises: collection device, and described collection device is connected with described vacuum chamber lower end, for collecting obtained B alloy wire.
The method preparing amorphous alloy wire of embodiment, comprises the following steps: a) provide master alloy ingot according to a second aspect of the present invention; B) described master alloy ingot is processed into non-crystaline amorphous metal base material, described non-crystaline amorphous metal base material is bar or band; C) described non-crystaline amorphous metal base material is heated to supercooled liquid district; And d) make it that superplastic deformation occur to the described non-crystaline amorphous metal base material being heated to supercooled liquid district by gravity traction to carry out wire drawing to form described amorphous alloy wire.
In some embodiments of the invention, described step a) in, described master alloy ingot is greater than 99.9% element by purity according to required non-crystaline amorphous metal atomic ratio batching and obtained by induction heating or arc melting.
In some embodiments of the invention, described step b) in, described master alloy ingot is processed into bar by copper mold casting method, or gets rid of band machine by vacuum and get rid of into band.
In some embodiments of the invention, described step c) in, described non-crystaline amorphous metal base material is heated to supercooled liquid district under an argon atmosphere.
Equipment according to the above embodiment of the present invention and method prepare amorphous alloy wire, at least have one of following advantage:
1, simple to operation, efficiency is high, preparation cost is very low;
The surperficial ultra-smooth amorphous alloy wire of 2, obtained micro/nano level evenly, continuously, any surface finish, size be controlled, can weave and have excellent mechanics and functional performance, and this makes it have very strong practical value in the field such as micro-nano mechanical system, matrix material, sensor, smart fabric, unicircuit connection, micro-nano conductor, armored fabric and waveguide wire.
By regulating the weight of balancing weight combination, length can be regulated by the length of surge drum the diameter of 3, obtained silk.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of the equipment preparing amorphous alloy wire according to an embodiment of the invention;
Fig. 2 is the stereoscan photograph according to the obtained amorphous alloy wire of embodiment 1; And
Fig. 3 is the atomic force microscope images according to the obtained amorphous alloy wire of embodiment 1.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the equipment of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Below, the equipment preparing amorphous alloy wire of embodiment according to a first aspect of the present invention is first described with reference to Figure 1.
Vacuum chamber 100, clamping device 200, heating unit 300, configuration block (not shown) is comprised according to the equipment preparing amorphous alloy wire of the embodiment of the present invention.
Wherein, vacuum chamber 100 can adopt Double water-cooled Stainless steel chamber, and its shape can be cylindrical, the different shape such as cube, spheroidal.
Clamping device 200 is arranged in vacuum chamber 100 for clamping non-crystaline amorphous metal base material.
Heating unit 300 is for being heated to supercooling liquid phase region by non-crystaline amorphous metal base material.As required, heating unit 300 can be high-frequency induction heating coil (not shown) and/or resistance heading furnace 310.
Balancing weight for being connected to the lower end of described non-crystaline amorphous metal base material, so that the non-crystaline amorphous metal base material being in supercooling liquid phase region is pulled into described amorphous alloy wire.By regulating the weight of balancing weight, the size of the diameter of obtained amorphous alloy wire can be adjusted easily.
In some embodiments of the invention, this equipment also comprises vaccum-pumping equipment 400, and vaccum-pumping equipment 400 is connected with vacuum chamber 100, provides vacuum environment for vacuum chamber 100.
In examples more of the present invention, vaccum-pumping equipment 400 comprises mechanical pump 410 and molecular pump 420, wherein, mechanical pump 410 is for providing primary vacuum environment for vacuum chamber 100, molecular pump 420 is for providing ultimate vacuum environment for vacuum chamber 100, and the vacuum tightness of described ultimate vacuum environment is greater than the vacuum tightness of described primary vacuum environment.Thus, can according to the particular case in vacuum chamber 100 and product requirement, segmentation vacuumizes, thus can greatly enhance productivity.
In some embodiments of the invention, described equipment also comprises high pressure argon gas source (not shown), and described high pressure argon gas source is connected with vacuum chamber 100 upper end by charging valve, passes into high pressure argon gas source for from vacuum chamber 100 upper end in vacuum chamber 100.
In some embodiments of the invention, described equipment also comprises collection device 500, and collection device 500 is connected with vacuum chamber 100 lower end, for collecting obtained amorphous alloy wire.As shown in Figure 1, collection device 500 can be surge drum, by adjusting the length of surge drum, can regulate the length of obtained amorphous alloy wire easily.
Below, the method preparing amorphous alloy wire according to the embodiment of the present invention is described.
According to the method preparing amorphous alloy wire of the embodiment of the present invention, comprise the following steps:
A) master alloy ingot is provided
Alternatively, the described master alloy ingot element that is greater than 99.9% by purity according to required non-crystaline amorphous metal atomic ratio batching and obtained by induction heating or arc melting.
B) described master alloy ingot is processed into non-crystaline amorphous metal base material, described non-crystaline amorphous metal base material is bar or band
Method master alloy ingot being processed into non-crystaline amorphous metal base material is not particularly limited, and such as, described master alloy ingot can be processed into bar by copper mold casting method, or gets rid of band machine by vacuum and get rid of into band.
Alternatively, described non-crystaline amorphous metal bar is roughly diameter 0.1 ~ 5mm, grows the cylindrical of 1 ~ 10cm, and the width of described AMORPHOUS ALLOY RIBBONS is 0.1 ~ 5mm, length is 1 ~ 10cm.
C) described non-crystaline amorphous metal base material is heated to supercooled liquid district
Such as, non-crystaline amorphous metal base material can be clamped in vacuum chamber, and by heating unit, base material top be heated, thus non-crystaline amorphous metal base material is heated to supercooled liquid district.
Alternatively, described non-crystaline amorphous metal base material can be heated to supercooled liquid district under argon gas condition.
D) make it that superplastic deformation occur to the described non-crystaline amorphous metal base material being heated to supercooled liquid district by gravity traction and carry out wire drawing to form described amorphous alloy wire
When non-crystaline amorphous metal base material is heated certain time, the viscosity degradation of non-crystaline amorphous metal base material; When viscosity degradation again props up the gravity of the balancing weight that is unable to hold out to metal base, will superplastic deformation be there is in non-crystaline amorphous metal base material, therefore balancing weight also declines thereupon, thus carries out wire drawing by the gravity traction from configuration block, the amorphous alloy wire of obtained surperficial ultra-smooth.
Below, equipment and the method for preparing amorphous alloy wire of the present invention is further illustrated by specific embodiment.
Embodiment 1, preparation La
55al
25cu
10ni
5co
5amorphous alloy wire
1) mother alloy is provided
Purity is greater than La, Al, Ni, Co and Cu of 99.9% according to La
55al
25cu
10ni
5co
5(at.%) atomic ratio prepares starting material, then puts it in electric arc furnace.
Be evacuated to 10
-3below Pa, is filled with high-purity (99.999%) argon gas, then vacuumizes applying argon gas again, so in triplicate, after then melting titanium ingot makes it absorb oxygen remaining in furnace chamber, then melt back mother alloy four times, make it even, finally cool, obtain the master alloy ingot of required non-crystaline amorphous metal.
2) described master alloy ingot is processed into non-crystaline amorphous metal bar
Appropriate fritter master alloy ingot is put in electric arc furnace, and under the protection of high-purity argon gas, again carry out melting and inhale casting onto in water cooled copper mould, obtaining diameter is 2mm, is about the La of 5cm
55al
25cu
10ni
5co
5non-crystaline amorphous metal rod.
It should be noted that, for the ease of being just placed on to carry out wire drawing to it in the center hole of stainless steel small column by non-crystaline amorphous metal rod, leaving oblate spheroid shape clout (diameter is greater than stainless steel small column center hole) at the head of non-crystaline amorphous metal rod.
3) described non-crystaline amorphous metal base material is heated to supercooled liquid district
Next, this non-crystaline amorphous metal rod is installed in the center hole (diameter is the hole of 2.5mm) of stainless steel small column (being highly 4cm), to put it into again in quartz glass tube (its lower end closed and have a diameter to be the hole of 5mm in center) and with stationary fixture, this quartz glass tube to be fixed in Stainless steel chamber top inner surface, making this stainless steel small column be positioned at the centre of high-frequency induction heating coil to heat it.
Meanwhile, a balancing weight is received non-crystaline amorphous metal rod bottom by pull wire and hook connecting, to carry out gravity traction to draw amorphous alloy wire to it after non-crystaline amorphous metal base material is heated to supercooled liquid district.
After this, open evacuating valve and take out mechanical pump with side Stainless steel chamber is evacuated to about 10Pa, close evacuating valve; Open butterfly valve, and continue Stainless steel chamber to be evacuated to 10 with molecular pump
-3pa, closes butterfly valve; Open argon gas charging valve again and be filled with high-purity (99.999%) argon gas 0.02MPa; Heat under the electric current of 12A with radio-frequency induction coil, so that non-crystaline amorphous metal rod is heated to its supercooling liquid phase region.
4) make it that superplastic deformation occur to the described non-crystaline amorphous metal base material being heated to supercooled liquid district by gravity traction and carry out wire drawing to form described amorphous alloy wire.
After non-crystaline amorphous metal rod is heated to its supercooling liquid phase region certain hour, its viscosity degradation.When viscosity degradation again props up the gravity of the balancing weight combination that is unable to hold out to non-crystaline amorphous metal rod time, will there is superplastic deformation in this non-crystaline amorphous metal rod, therefore balancing weight combination also declines thereupon, thus forms La
55al
25cu
10ni
5co
5surface ultra-smooth amorphous alloy wire.
As shown in Fig. 2 (a), obtained La
55al
25cu
10ni
5co
5the diameter of surface ultra-smooth amorphous alloy wire is 10.5 microns.In addition, by changing the weight of configuration block, the surperficial ultra-smooth amorphous alloy wire (as Fig. 2 (b)) that diameter is 39.3 microns is also obtained in an identical manner.
In addition, also carry out surface analysis to the amorphous alloy wire shown in Fig. 2 (a), from its atomic force microscopy (Fig. 3) result, surface flatness reaches nano level.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (10)
1. prepare an equipment for amorphous alloy wire, it is characterized in that, comprising:
Vacuum chamber;
Clamping device, described clamping device is arranged in described vacuum chamber for clamping non-crystaline amorphous metal base material;
Heating unit, described heating unit is used for described non-crystaline amorphous metal base material to be heated to supercooling liquid phase region; And
Balancing weight, described balancing weight for being connected to the lower end of described non-crystaline amorphous metal base material, so that the non-crystaline amorphous metal base material being in supercooling liquid phase region is pulled into described amorphous alloy wire.
2. equipment according to claim 1, is characterized in that, described heating unit comprises high-frequency induction heating coil and/or resistance heading furnace.
3. equipment according to claim 1, is characterized in that, also comprises:
Vaccum-pumping equipment, described vaccum-pumping equipment is connected with described vacuum chamber, provides vacuum environment for described vacuum chamber.
4. equipment according to claim 3, is characterized in that, described vaccum-pumping equipment comprises mechanical pump and molecular pump, wherein,
Described mechanical pump is used for providing primary vacuum environment for described vacuum chamber, and described molecular pump is used for providing ultimate vacuum environment for described vacuum chamber, and the vacuum tightness of described ultimate vacuum environment is greater than the vacuum tightness of described primary vacuum environment.
5. equipment according to claim 1, is characterized in that, also comprises:
High pressure argon gas source, described high pressure argon gas source is connected with described vacuum chamber upper end by charging valve, passes into high pressure argon gas source for from described vacuum chamber upper end in described vacuum chamber.
6. equipment according to claim 1, is characterized in that, also comprises:
Collection device, described collection device is connected with described vacuum chamber lower end, for collecting obtained amorphous alloy wire.
7. prepare a method for amorphous alloy wire, it is characterized in that, comprise the following steps:
A) master alloy ingot is provided;
B) described master alloy ingot is processed into non-crystaline amorphous metal base material, described non-crystaline amorphous metal base material is bar or band;
C) described non-crystaline amorphous metal base material is heated to supercooled liquid district; And
D) make it that superplastic deformation occur to the described non-crystaline amorphous metal base material being heated to supercooled liquid district by gravity traction and carry out wire drawing to form described amorphous alloy wire.
8. method according to claim 7, is characterized in that, described step a) in, described master alloy ingot is greater than 99.9% element by purity according to required non-crystaline amorphous metal atomic ratio batching and obtained by induction heating or arc melting.
9. method according to claim 7, is characterized in that, described step b) in, described master alloy ingot is processed into bar by copper mold casting method, or gets rid of band machine by vacuum and get rid of into band.
10. method according to claim 7, is characterized in that, described step c) in, described non-crystaline amorphous metal base material is heated to supercooled liquid district under an argon atmosphere.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106807799A (en) * | 2016-12-27 | 2017-06-09 | 华中科技大学 | A kind of preparation method of amorphous alloy wire and electric draw-off gear |
| CN107242626A (en) * | 2017-06-07 | 2017-10-13 | 宋佳 | A kind of non-crystaline amorphous metal fabric |
| CN109628856A (en) * | 2017-10-09 | 2019-04-16 | 中国科学院物理研究所 | Iridium amorphous alloy wire and preparation method thereof |
| CN112126871A (en) * | 2020-04-07 | 2020-12-25 | 上海大学 | Device and method for preparing micro-nano metal glass tube |
| CN112877579A (en) * | 2021-01-14 | 2021-06-01 | 东南大学 | Non-equal atomic ratio high-entropy alloy and method for preparing wire by using same |
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| CN102343374A (en) * | 2010-07-29 | 2012-02-08 | 中国科学院物理研究所 | Apparatus and method for preparing micro-nano scaled metallic glass fiber |
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| JPH08199318A (en) * | 1995-01-25 | 1996-08-06 | Res Dev Corp Of Japan | Bar-shaped or cylindrical zirconium-base amorphous alloy cast and molded by metal mold and its production |
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| CN102343374A (en) * | 2010-07-29 | 2012-02-08 | 中国科学院物理研究所 | Apparatus and method for preparing micro-nano scaled metallic glass fiber |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807799A (en) * | 2016-12-27 | 2017-06-09 | 华中科技大学 | A kind of preparation method of amorphous alloy wire and electric draw-off gear |
| CN106807799B (en) * | 2016-12-27 | 2017-11-24 | 华中科技大学 | A kind of preparation method of amorphous alloy wire |
| CN107242626A (en) * | 2017-06-07 | 2017-10-13 | 宋佳 | A kind of non-crystaline amorphous metal fabric |
| CN107242626B (en) * | 2017-06-07 | 2020-01-17 | 宋佳 | Amorphous alloy fabric |
| CN109628856A (en) * | 2017-10-09 | 2019-04-16 | 中国科学院物理研究所 | Iridium amorphous alloy wire and preparation method thereof |
| CN112126871A (en) * | 2020-04-07 | 2020-12-25 | 上海大学 | Device and method for preparing micro-nano metal glass tube |
| CN112877579A (en) * | 2021-01-14 | 2021-06-01 | 东南大学 | Non-equal atomic ratio high-entropy alloy and method for preparing wire by using same |
| CN112877579B (en) * | 2021-01-14 | 2021-10-19 | 东南大学 | Non-equal atomic ratio high-entropy alloy and method for preparing wire by using same |
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Application publication date: 20150211 |