CN112342410B - Preparation method of amorphous alloy - Google Patents

Preparation method of amorphous alloy Download PDF

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CN112342410B
CN112342410B CN202011187417.5A CN202011187417A CN112342410B CN 112342410 B CN112342410 B CN 112342410B CN 202011187417 A CN202011187417 A CN 202011187417A CN 112342410 B CN112342410 B CN 112342410B
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amorphous alloy
amorphous
alloys
hot
alloy
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CN112342410A (en
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马将
李泓臻
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Shenzhen University
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Shenzhen University
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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
    • C22C1/11—Making amorphous alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
    • 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
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The invention belongs to the field of amorphous alloy material forming, and particularly relates to a preparation method of an amorphous alloy. Which comprises the following steps: molding, namely preparing and molding a first amorphous alloy and a second amorphous alloy; the combination is characterized in that a plurality of second amorphous alloys are arranged, and the second amorphous alloys are sequentially arranged on the first amorphous alloy at intervals along a preset direction; hot pressing, preparing a hot pressing device, wherein the hot pressing device comprises a hot pressing die, a heating structure and a force application structure, the first amorphous alloy and each second amorphous alloy which is connected with the first amorphous alloy in a combined mode are placed in the hot pressing die, the heating structure heats the hot pressing die to enable the first amorphous alloy and each second amorphous alloy to reach a preset temperature, and the force application structure applies an acting force to the hot pressing die to hot press and form the first amorphous alloy and each second amorphous alloy into a third amorphous alloy. The first amorphous alloy and the second amorphous alloy are combined and connected, and then the third amorphous alloy with larger size is formed by hot pressing.

Description

Preparation method of amorphous alloy
Technical Field
The invention belongs to the field of amorphous alloy material forming, and particularly relates to a preparation method of an amorphous alloy.
Background
At present, the development of new high-performance materials to meet the development of current science and technology and industry is always the main research target of material science, amorphous alloy is a novel material prepared by ultra-fast condensation and solidification of alloy in a molten state, and the internal atoms of the amorphous alloy are not as close as sequencing nucleation, so that the atomic arrangement structure is characterized by short-range order and long-range disorder. The amorphous alloy has a uniform and isotropic structure and does not have structural defects like dislocations, stacking faults, grain boundaries and twin crystals contained in common crystalline metals. The strength, hardness and corrosion resistance of the amorphous alloy are higher than those of the common metal at present, the surface energy of the amorphous alloy is higher, and the surface of the amorphous alloy is highly unsaturated, so that the amorphous alloy has stronger capability of activating reaction molecules and higher active center density.
Since the discovery of amorphous alloys, through researches of scholars, material systems of amorphous alloys are increasing, in addition, the amorphous materials show excellent performances which are not possessed by other common crystalline metals in the fields of biomedicine, catalysis, magnetism, mechanics and the like, for example, in the field of aerospace, the working environment of the amorphous alloys is generally complex, and the used materials are required to have various excellent performances to cope with variable environments, so that the Zr-based amorphous alloy is used as the material of the solar wind collecting tile on the spacecraft of the American national aerospace agency, and in the field of medical science and physics, the metals used for human body implantation are generally required to have good inertness and biocompatibility, for example, the applications of a human body thrombus suction pump, skeleton bridging and the like, so that the Mg-based and Ca-based amorphous alloys meet the requirements.
In the military field, amorphous alloy can be used as armor piercing bullet, because the surface of bullet is heated rapidly due to high-speed friction when penetrating through the object, the temperature reaches the supercooling liquid phase region softening temperature of the amorphous alloy, and the surface of bullet is polished again to form a new sharp bullet.
The amorphous alloy has great potential application value in engineering application due to the excellent performance, but the development of the amorphous alloy is limited because the amorphous alloy cannot be manufactured in large size and volume due to the preparation of the amorphous alloy through ultra-fast condensation and solidification. If the size and volume of the amorphous alloy can break through the limitations of the original process, the amorphous alloy will be rapidly developed in industrial application.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method for preparing an amorphous alloy, which aims to solve the problem of how to prepare a bulk amorphous alloy.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: the preparation method of the amorphous alloy comprises the following steps:
molding, namely preparing and molding a first amorphous alloy and a second amorphous alloy;
a plurality of second amorphous alloys are arranged in combination, and the second amorphous alloys are sequentially arranged on the first amorphous alloy at intervals along a preset direction;
and hot-pressing, wherein the hot-pressing device comprises a hot-pressing die, a heating structure and a force application structure, the first amorphous alloy and each second amorphous alloy which is combined and connected with the first amorphous alloy are placed in the hot-pressing die, the heating structure heats the hot-pressing die to enable the first amorphous alloy and each second amorphous alloy to reach a preset temperature, and the force application structure applies acting force to the hot-pressing die to hot-press and form the first amorphous alloy and each second amorphous alloy into a third amorphous alloy along the preset direction.
In one embodiment, two first amorphous alloys are arranged at intervals, and two ends of each second amorphous alloy are respectively connected with the two first amorphous alloys.
In one embodiment, the first amorphous alloy is in a shape of an elongated plate, the second amorphous alloy is in a shape of a plate, and the second amorphous alloys are sequentially arranged at intervals along the length direction of the first amorphous alloy.
In one embodiment, the thickness of the first amorphous alloy and the thickness of the second amorphous alloy are both in the range of 0.5-2.5 mm.
In one embodiment, each of the second amorphous alloys is disposed at equal intervals on the first amorphous alloy.
In one embodiment, each of the second amorphous alloys is disposed on the first amorphous alloy at a non-equal interval.
In one embodiment, the distance between two adjacent second amorphous alloys is sequentially increased towards the central position of the first amorphous alloy.
In one embodiment, a first groove is formed at a position where the first amorphous alloy is connected to each of the second amorphous alloys, a second groove is formed at an edge of each of the second amorphous alloys, the first groove is adapted to the corresponding second groove, and each of the first grooves is coupled to the corresponding second groove.
In one embodiment, each of the first grooves extends to a central position of the first amorphous alloy.
In one embodiment, the second grooves extend to corresponding central positions of the second amorphous alloy.
The beneficial effect of this application lies in: the first amorphous alloy and the plurality of second amorphous alloys are spatially arranged and combined, the first amorphous alloy and the second amorphous alloy are heated to the supercooling liquid phase region through the heating structure, and the hot-pressing die is pressurized through the force application structure, so that a third amorphous alloy with a larger size is obtained.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a method for preparing an amorphous alloy according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a first amorphous alloy in a method for preparing an amorphous alloy according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a second amorphous alloy in a method for preparing an amorphous alloy according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a combination of a first amorphous alloy and a second amorphous alloy in a method for preparing an amorphous alloy according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a hot pressing apparatus in a method for preparing an amorphous alloy according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a third amorphous alloy formed by hot pressing in a method for preparing an amorphous alloy according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a combination of a first amorphous alloy and a second amorphous alloy in a method for preparing an amorphous alloy according to another embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
11. a first amorphous alloy;
12. a second amorphous alloy;
13. a third amorphous alloy;
111. a first groove;
121. a second groove;
211. hot pressing the cavity;
21. hot pressing the mold;
22. a force application structure;
20. a hot pressing device;
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and fig. 3, an embodiment of the present application provides a method for preparing an amorphous alloy, which includes the following steps:
s1: molding; a first amorphous alloy 11 and a second amorphous alloy 12 are prepared and shaped.
Firstly, preparing the components of La62Al14Cu24Or component Zr51Cu20.7Ni12Al16.3The mother amorphous alloy plate. Mixing 30g of each simple substance metal according to an equal atomic ratio, namely La, Al and Cu; or carrying out equal atomic ratio batching on Zr, Cu, Ni and Al. And melting the alloy plates by an electric arc furnace, suction casting each simple substance metal into a forming die in a molten state, and forming to obtain the mother amorphous alloy plates with uniformly distributed components. Optionally, the thickness of the mother amorphous alloy slab is 2 mm. And cutting the mother amorphous alloy plate by slow wire cutting to obtain a first amorphous alloy 11 and a plurality of second amorphous alloys 12.
S2: combining; a plurality of second amorphous alloys 12 are arranged, and the second amorphous alloys 12 are arranged on the first amorphous alloy 11 in sequence along a predetermined direction at intervals; optionally, the first amorphous alloy 11 is in a long strip shape, the second amorphous alloys 12 are combined along the length direction of the first amorphous alloy 11, and the second amorphous alloys 12 are sequentially arranged at intervals.
S3: hot pressing; referring to fig. 4 and 6, a hot pressing apparatus 20 is prepared, the hot pressing apparatus 20 includes a hot pressing mold 21, a heating structure and a force application structure 22, the first amorphous alloy 11 and each second amorphous alloy 12 combined and connected to the first amorphous alloy 11 are all placed in the hot pressing mold 21, and the heating structure heats the hot pressing mold 21 to make the first amorphous alloy 11 and each second amorphous alloy 12 reach a predetermined temperature, that is, reach the supercooled liquid region of the first amorphous alloy 11 and the second amorphous alloy 12. Optionally, with La55Cu10Ni5Al25 Co5For example, the temperature range of the supercooled liquid phase region is 183-264 ℃. The force application structure 22 applies a force toward the hot pressing mold 21 to hot press-form the first amorphous alloy 11 and each second amorphous alloy 12 into the third amorphous alloy 13 in a predetermined direction within the hot pressing mold 21. Optionally, the hot pressing die 21 is made of SKD-61 die steel, and is formed by turning, milling or the like. Then, the first amorphous alloy 11 and the second amorphous alloy 12 are placed in the hot pressing cavity 211 of the hot pressing mold 21, and the hot pressing mold 21 is heated by the heating structure.
Optionally, the component is La62Al14Cu24When the temperature is required to be heated to 140 ℃, then the heating is stopped and the pressure is applied to the hot-pressing die 21, so that the first amorphous alloy 11 and the second amorphous alloy 12 reach a supercooled liquid phase region, the hot-pressing die 21 is in a pressure range of 10-50 Mpa, and the pressure is maintained for 30 s; and is divided into Zr51Cu20.7Ni12Al16.3In this case, the temperature is required to be 480 ℃ so that the first amorphous alloy 11 and the second amorphous alloy 12 reach the supercooled liquid region. Then, the heating is stopped and the pressure application to the hot press mold 21 is started, so that the hot press mold 21 is in a pressure range of 40Mpa to 100Mpa, and the pressure is maintained for 30 seconds.
Finally, the pressure on the hot-pressing mold 21 is removed, the hot-pressing mold 21 after the preliminary cooling is taken out, and the third amorphous alloy 13 is taken out after the hot-pressing mold 21 is cooled to room temperature. It will be appreciated that the third amorphous alloy 13 is larger in size or volume than the first amorphous alloy 11 and the second amorphous alloy 12.
Referring to fig. 1 and fig. 3, the first amorphous alloy 11 and the plurality of second amorphous alloys 12 are spatially arranged and combined, the first amorphous alloy 11 and the second amorphous alloy 12 are heated to the supercooled liquid region by the heating structure, and the hot pressing mold 21 is pressurized by the force application structure 22, so as to obtain a third amorphous alloy 13 with a larger size.
In one embodiment, two first amorphous alloys 11 are disposed at intervals, and two ends of each second amorphous alloy 12 are respectively connected to two first amorphous alloys 11. It is understood that more than two first amorphous alloys 11 can be provided, and a third amorphous alloy 13 with a larger size and volume can be prepared by the staggered connection of the plurality of first amorphous alloys 11 and the plurality of second amorphous alloys 12, that is, the volume of the third amorphous alloy 13 is much larger than that of the first amorphous alloy 11 or that of the second amorphous alloy 12.
Referring to fig. 1 and 3, in an embodiment, the first amorphous alloy 11 is in a strip shape, the second amorphous alloy 12 is in a plate shape, and the second amorphous alloys 12 are sequentially arranged at intervals along a length direction of the first amorphous alloy 11. Alternatively, the first amorphous alloy 11 is a rectangular plate and the second amorphous alloy 12 is a circular plate, and the length of the first amorphous alloy 11 is much larger than the diameter of the second amorphous alloy 12.
Alternatively, the second amorphous alloy 12 may have a square shape.
Alternatively, in other embodiments, the first amorphous alloy 11 may also be in a columnar shape, and the second amorphous alloys 12 are sequentially arranged along the axial direction of the first amorphous alloy 11.
Optionally, the plate surfaces of the second amorphous alloys 12 are all arranged in parallel, so that the combination of the second amorphous alloys 12 and the first amorphous alloy 11 is facilitated in the hot-pressing stage.
In one embodiment, the thickness of the first amorphous alloy 11 and the second amorphous alloy 12 is in a range of 0.5 to 2.5 mm. Optionally, the component is La62Al14Cu24The thickness of the first amorphous alloy 11 and the second amorphous alloy 12 is 2mm, and the composition thereof is Zr51Cu20.7Ni12Al16.3The thickness of the first amorphous alloy 11 and the second amorphous alloy 12 is 1.5 mm.
In one embodiment, the second amorphous alloys 12 are arranged at equal intervals on the first amorphous alloy 11.
In one embodiment, the second amorphous alloys 12 are disposed on the first amorphous alloy 11 at non-equal intervals.
Referring to fig. 7, in an embodiment, the distance between two adjacent second amorphous alloys 12 is sequentially increased toward the center of the first amorphous alloy 11. That is, the distance between any two adjacent second amorphous alloys 12 increases from the two ends of the first amorphous alloy 11 to the center of the first amorphous alloy 11. Optionally, in the hot pressing stage, the end portions of the two ends of the first amorphous alloy 11 are deformed greatly, so that a plurality of second amorphous alloys 12 are densely arranged at the end portions of the first amorphous alloy 11, thereby facilitating the combination of the first amorphous alloy 11 and each second amorphous alloy 12.
Referring to fig. 1 and fig. 3, in an embodiment, a first groove 111 is formed at a position where the first amorphous alloy 11 is connected to each second amorphous alloy 12, a second groove 121 is formed at an edge of each second amorphous alloy 12, the first groove 111 is adapted to the corresponding second groove 121, and each first groove 111 is respectively coupled to the corresponding second groove 121 in a clamping manner. Through the matching of the first groove 111 and the second groove 121, the second amorphous alloys 12 are respectively connected to the first amorphous alloys 11, and after hot press forming, the connection between the first amorphous alloys 11 and each second amorphous alloy 12 is enhanced.
In one embodiment, each first groove 111 extends to the central position of the first amorphous alloy 11, thereby facilitating the strengthening of the connection after the hot-forming of the first amorphous alloy 11 and each second amorphous alloy 12.
In one embodiment, the second grooves 121 extend to the center of the corresponding second amorphous alloy 12, thereby facilitating the strengthening of the connection between the first amorphous alloy 11 and each second amorphous alloy 12 after the hot press forming.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (8)

1. The preparation method of the amorphous alloy is characterized by comprising the following steps of:
molding, namely preparing and molding a first amorphous alloy and a second amorphous alloy;
a plurality of second amorphous alloys are arranged in combination, and the second amorphous alloys are sequentially arranged on the first amorphous alloy at intervals along a preset direction; the first amorphous alloy is in a strip plate shape, the second amorphous alloy is in a plate shape, and the second amorphous alloys are sequentially arranged at intervals along the length direction of the first amorphous alloy; the first amorphous alloy is provided with a first groove at the position connecting each second amorphous alloy, the edge of each second amorphous alloy is provided with a second groove, the first grooves are matched with the corresponding second grooves, and each first groove is coupled with the corresponding second groove;
and hot-pressing, wherein the hot-pressing device comprises a hot-pressing die, a heating structure and a force application structure, the first amorphous alloy and each second amorphous alloy combined and connected with the first amorphous alloy are placed in the hot-pressing die, the heating structure heats the hot-pressing die to enable the first amorphous alloy and each second amorphous alloy to reach a preset temperature, the force application structure applies force to the hot-pressing die to hot-press and form the first amorphous alloy and each second amorphous alloy into a third amorphous alloy along the preset direction, and the volume of the third amorphous alloy is larger than that of the first amorphous alloy or the second amorphous alloy.
2. The method for preparing an amorphous alloy according to claim 1, wherein: two first amorphous alloys are arranged at intervals, and two ends of each second amorphous alloy are respectively connected with the two first amorphous alloys.
3. The method for preparing an amorphous alloy according to claim 1, wherein: the thickness ranges of the first amorphous alloy and the second amorphous alloy are both 0.5-2.5 mm.
4. The method for preparing an amorphous alloy according to claim 1, wherein: and the second amorphous alloy is arranged on the first amorphous alloy at equal intervals.
5. The method for preparing an amorphous alloy according to claim 1, wherein: and the second amorphous alloys are arranged on the first amorphous alloy at unequal intervals.
6. The method for preparing an amorphous alloy as claimed in claim 5, wherein: and the distance between two adjacent second amorphous alloys is sequentially increased towards the central position of the first amorphous alloy.
7. The method for preparing an amorphous alloy as claimed in any one of claims 1 to 6, wherein: each first groove extends to the central position of the first amorphous alloy.
8. The method for preparing an amorphous alloy as claimed in any one of claims 1 to 6, wherein: the second groove extends to the center of the corresponding second amorphous alloy.
CN202011187417.5A 2020-10-30 2020-10-30 Preparation method of amorphous alloy Active CN112342410B (en)

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CN102430745B (en) * 2011-08-18 2015-11-25 比亚迪股份有限公司 The method that non-crystaline amorphous metal is combined with dissimilar materials and complex
CN104553232A (en) * 2014-12-22 2015-04-29 深圳市锆安材料科技有限公司 Amorphous alloy and non-metal material combined forming method and complex thereof
CN104942267A (en) * 2015-06-25 2015-09-30 河南理工大学 Quick formation method for amorphous alloy under non-vacuum condition
CN107663618A (en) * 2016-07-29 2018-02-06 比亚迪股份有限公司 Zirconium-base amorphous alloy aluminum or aluminum alloy composite and dyeing zirconium-base amorphous alloy aluminum or aluminum alloy composite and preparation method
CN113369663B (en) * 2019-01-08 2022-11-01 浙江大学台州研究院 Thermoplastic connection method of amorphous alloy
CN111590190B (en) * 2020-05-28 2021-08-03 广东工业大学 Ultrasonic friction welding forming method for large-size amorphous alloy

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