CN109266947A - A kind of high-entropy alloy composite component and preparation method thereof - Google Patents
A kind of high-entropy alloy composite component and preparation method thereof Download PDFInfo
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- CN109266947A CN109266947A CN201811425173.2A CN201811425173A CN109266947A CN 109266947 A CN109266947 A CN 109266947A CN 201811425173 A CN201811425173 A CN 201811425173A CN 109266947 A CN109266947 A CN 109266947A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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Abstract
The invention discloses a kind of high-entropy alloy composite components, including the prefabricated core part of high-entropy alloy and low melting point shell, high molecular material or metal material of the low melting point shell by fusing point lower than 680 DEG C are made, and the ratio between thickness of the prefabricated core part of high-entropy alloy and the low melting point shell is 1:0.1-0.99；The prefabricated core part of high-entropy alloy with a thickness of 0.1-20mm.The high-entropy alloy composite component be effectively utilized high-entropy alloy high-performance and low melting material can injection molding processability, obtain performance more preferably high-entropy alloy component.
Description
Technical field
The present invention relates to alloy components technical fields more particularly to a kind of high-entropy alloy composite component and preparation method thereof.
Background technique
Structural member in the prior art is increasingly intended to lightweight direction and develops, and in electronic product, design is got over
Carry out smaller, function to concentrate further, the effects of realizing connection in product, fixing, support should be met as structural member, also to be met
The requirement of the indexs such as strength impact performance, while also to accomplish frivolous and there is good appearance.Existing unicity
Material is often difficult to meet above-mentioned all requirements, such as plastic material, although frivolous, intensity is low, appearance and use
Feel is not so good as metal material, and common metal material, such as stainless steel material, density are big, and specific strength is low, and density is lesser
It is difficult to meet harsh use condition in aluminium alloy, magnesium alloy equal strength and corrosion resistance.It is existing for reasons such as product designs
The material of current material and other enhanced materials or thinned type is carried out compound being to solve above-mentioned practical problem in technology
One of method.
High-entropy alloy is the great discovery of Material Field in recent years, unlike Conventional alloys, in high entropy alloy material
Portion's each component is matched in equal proportion, and it is excellent with high intensity, high resiliency, high-wearing feature and corrosion resistance etc. that this allows for high-entropy alloy
Anisotropic energy, makes it have broad application prospects in fields such as aerospace, precision instrument, biologic medicals.High-entropy alloy is than strong
Degree is higher than conventional metal material, and appearance is good, combines that can be realized structural member lightening with different current materials
Effect.But the combination method and binding force of high-entropy alloy and other materials are one of current insoluble technological difficulties,
The reason is that high-entropy alloy bath surface can be lower than common crystal alloy melt.Conventional combination method includes welding, glues
It connects, however in welding procedure, the secondary fuel factor of generation is easy so that crystallization occurs for high-entropy alloy, and weld is brittle, from
And influence binding performance；In technique for sticking, pretreatment process requires height to the material surface roughness and cleannes to connect, and
And interface adhesive must also be used, the complexity of technique is not only increased, while the intensity and firmness that are bonded are limited to
Adhesive, and adhesive failure speed accelerates under hygrothermal environment, is easy aging fracture.Also having makes two using the method for mold
Person's molding, but the method for mold processing has selectivity to compound material, is not to be suitable for all materials, Er Qiegao
Entropy alloy flowability is good, and requirement of the total system to temperature control is high, is not only tied using composite component made of common mold system
Binding force is not strong at conjunction, and the consistency of high-entropy alloy is low, influence the dimensional stability of whole composite component, reduce it is compound
The intensity of component.In the prior art there is also using it is various it is stage heating then carry out compound high-entropy alloy composite component at
Type method, but since the problems such as processing cost height and high failure risk fails to obtain the use of popularity.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of amorphous alloys, stability
The high-entropy alloy composite component good, low for equipment requirements, failure risk is low.
The second object of the present invention is to provide the preparation method of the high-entropy alloy composite component.
An object of the present invention adopts the following technical scheme that realization:
Including the prefabricated core part of high-entropy alloy and low melting point shell, the low melting point shell is lower than 680 DEG C of high score by fusing point
Sub- material or metal material are made, and the ratio between thickness of the prefabricated core part of high-entropy alloy and the low melting point shell is 1:0.1-
0.99；The prefabricated core part of high-entropy alloy with a thickness of 0.1-20mm.
The ratio between thickness of the prefabricated core part of high-entropy alloy and the low melting point shell more preferably 1:0.5-0.9, then into one
Step is preferably 1:0.6-0.7.
Further, the material of the prefabricated core part of high-entropy alloy is zirconium base high-entropy alloy, titanium-based high-entropy alloy, copper-based high entropy conjunction
Golden, iron-based high-entropy alloy, aluminium base high-entropy alloy, magnesium-based high-entropy alloy, cobalt-based high-entropy alloy, Ni-based high-entropy alloy, rare-earth base are high
One of entropy alloy or a variety of combinations.
Further, the material of the prefabricated core part of high-entropy alloy is CrFeCoNiCu or CoCrFeMnNi.
Further, the material of low melting point shell be aluminium, aluminium alloy, magnesium, magnesium alloy, zinc, kirsite, bismuth, cadmium, tin, lead,
One or more of dysprosium, indium.
Further, the material of the low melting point shell is one or more of plastics, resin or rubber.
Further, the prefabricated core part of the high-entropy alloy is matched with the low melting point shell chamfering.
Further, the prefabricated core part of the high-entropy alloy with a thickness of 5-15mm.
The second object of the present invention adopts the following technical scheme that realization:
A method of preparing above-mentioned high-entropy alloy composite component, comprising the following steps:
1) the prefabricated core part of high-entropy alloy is obtained by high-entropy alloy preformed material is prefabricated；
2) the prefabricated core part of high-entropy alloy is installed in mold；
3) by the outside of the prefabricated core part of the high-entropy alloy of the material injecting mould of the low melting point shell of melting, apply pressure pressure
Type is made, obtains low melting point shell；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
Further, in step 2), mold includes die cavity, cast gate and Pressure chamber, and cast gate connects Pressure chamber and die cavity, cast gate
And induction heating apparatus is equipped in die cavity.
Further, in step 3), cast gate and die cavity joint interface area of section match with die cavity accent section.
Compared with prior art, the beneficial effects of the present invention are:
The present invention provides a kind of high-entropy alloy composite component and preparation method thereof, which passes through alternating
The prefabricated core part of the high-entropy alloy of stacking and low melting point shell carry out fine and close pressing, can efficiently use the high machine of high intensity of high-entropy alloy
Tool performance and the plasticity of low melting material, Lightness and machinability, so that being made has intensity, finer and close high entropy
Alloy composite component；
The prefabricated core part of high-entropy alloy of the invention and low melting point shell are combined according to the ratio of approximate uniform thickness, can be made
The more excellent composite component of performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is the structural schematic diagram of embodiment 2；
Fig. 3 is the structural schematic diagram of embodiment 3；
Fig. 4 is the structural schematic diagram of embodiment 4；
Fig. 5 is the structural schematic diagram of embodiment 5；
Fig. 6 is the structural schematic diagram of embodiment 6.
In figure, each appended drawing reference: 1, the prefabricated core part of high-entropy alloy；2, low melting point shell；3, groove；4, chamfering.
Specific embodiment
In the following, being described further in conjunction with the drawings and specific embodiments to the present invention, it should be noted that in not phase
Under the premise of conflict, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
It includes the prefabricated core part of high-entropy alloy and low melting point shell that the application, which provides, and the low melting point shell is lower than by fusing point
680 DEG C of high molecular material or metal material is made, the thickness of the high-entropy alloy prefabricated core part and the low melting point shell
The ratio between be 1:0.1-0.99；The prefabricated core part of high-entropy alloy with a thickness of 0.1-20mm.
The application, at the composite component of core-shell structure, can be integrated effectively using the prefabricated core part of high-entropy alloy, low melting point hull shape
The high intensity of high entropy alloy material and the easy processing feature of low melting material, the composite component that makes being substantially thinned or
The component weakness of polymorphic structure still has enough intensity and shock resistance, can also reduce the overall weight of component simultaneously.
The present invention additionally provides the preparation method of the high-entropy alloy composite component simultaneously, comprising the following steps:
1) the prefabricated core part of high-entropy alloy is obtained by high-entropy alloy preformed material is prefabricated；
2) the prefabricated core part of high-entropy alloy is installed in mold；
3) by the outside of the prefabricated core part of the high-entropy alloy of the material injecting mould of the low melting point shell of melting, apply pressure pressure
Type is made, obtains low melting point shell；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
This method be installed in high-entropy alloy preformed material is pre-formed in mold, then to the low melting material of melting into
Row melt-processed high-temperature perfusion compression moulding, to obtain the high low melting point shell of consistency；To obtain kernel as high-entropy alloy, outer
Layer is the higher mechanical strength of retrofit and the high-entropy alloy composite component that buffers more by force.This method is effectively utilized high entropy and closes
The high-melting-point of golden component is with pre-formed and low melting material stronger melting form, to obtain surface exquisiteness, knot
Close densification, high mechanical strength, the preferable high-entropy alloy composite component of impact resistance.
The structure of mold used in this application includes die cavity, cast gate and Pressure chamber, and cast gate connects Pressure chamber and die cavity, cast gate
And induction heating apparatus is equipped in die cavity.I.e. when low melting material melting enters die cavity from cast gate, the shape of heat preservation can be used
Formula has phenomena such as efficiency reduces uneven molding caused by melted material surface cooling, crackle.The cast gate and die cavity phase of the mold
The place's of connecing interface area of section matches with die cavity accent section.The matching of cast gate and die cavity can effectively reduce low melting point shell
The inhomogeneities at edge.
Embodiment 1:
A kind of high-entropy alloy composite component, as shown in Figure 1, including the prefabricated core part 1 of flat bedded high-entropy alloy and above and below
Coat the low melting point shell 2 of the prefabricated core part 1 of high-entropy alloy, the material of the prefabricated core part 1 of high-entropy alloy be CrFeCoNiCu, with a thickness of
The material of 10mm, low melting point shell 2 are aluminium, with a thickness of 9mm.
The preparation method of the high-entropy alloy composite component the following steps are included:
1) high-entropy alloy preformed material is prefabricated into the horizontal piece of 10mm, obtains the prefabricated core part 1 of high-entropy alloy；
2) the prefabricated core part 1 of high-entropy alloy is installed in mold；
3) upper and lower surfaces that will determine the prefabricated core part 1 of high-entropy alloy of the aluminium injection mold of the melting of volume, apply pressure pressure
Type is made, obtains low melting point shell 2；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
Embodiment 2:
A kind of high-entropy alloy composite component, as shown in Fig. 2, including the prefabricated core part of high-entropy alloy 1 of wave stratiform and upper and lower
Coat the low melting point shell 2 of the prefabricated core part 1 of high-entropy alloy, the material of the prefabricated core part 1 of high-entropy alloy be CrFeCoNiCu, with a thickness of
The material of 10mm, low melting point shell 2 are rubber, with a thickness of 8-9mm.
The preparation method of the high-entropy alloy composite component the following steps are included:
1) high-entropy alloy preformed material is prefabricated into the wavy of 10mm, obtains the prefabricated core part 1 of high-entropy alloy；
2) the prefabricated core part 1 of high-entropy alloy is installed in mold；
3) surface that will determine the prefabricated core part 1 of high-entropy alloy of the rubber heat preservation injection mold of the melting of volume, applies and height
The parallel pressure of the prefabricated core part 1 of entropy alloy, compression moulding obtain low melting point shell 2；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
Embodiment 3:
A kind of high-entropy alloy composite component, as shown in figure 3, including prefabricated 1 He of core part of high-entropy alloy of triangle sawtooth stratiform
The low melting point shell 2 of the upper and lower cladding prefabricated core part 1 of high-entropy alloy, the material of the prefabricated core part 1 of high-entropy alloy be CoCrFeMnNi,
With a thickness of 10mm, the material of low melting point shell 2 is zinc, with a thickness of 8-9mm.
The preparation method of the high-entropy alloy composite component the following steps are included:
1) high-entropy alloy preformed material is prefabricated into the triangle zigzag of 10mm, obtains the prefabricated core part 1 of high-entropy alloy；
2) the prefabricated core part 1 of high-entropy alloy is installed in mold；
3) upper and lower surfaces that will determine the prefabricated core part 1 of high-entropy alloy of the zinc heat preservation injection mold of the melting of volume, apply pressure
Power compression moulding obtains low melting point shell 2；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
In embodiment 1-3, prefabricated 1 structure of core part of high-entropy alloy is pressed from both sides for low melting point shell 2, can be further preferred,
Low melting point shell 2 also coats the prefabricated core part 1 of high-entropy alloy in side.I.e. low melting point shell 2 is in the outer of the prefabricated core part 1 of high-entropy alloy
Form a complete cladding.
Embodiment 4:
A kind of high-entropy alloy composite component, as shown in figure 4, including the prefabricated core part 1 of high-entropy alloy and cladding height of dog-ear shape
The low melting point shell 2 of the prefabricated core part 1 of entropy alloy, the material of the prefabricated core part 1 of high-entropy alloy are CoCrFeMnNi, with a thickness of 10mm,
The material of low melting point shell 2 is magnesium alloy, with a thickness of 8-9mm.
The preparation method of the high-entropy alloy composite component the following steps are included:
1) high-entropy alloy preformed material is prefabricated into the dog-ear shape of 10mm, obtains the prefabricated core part 1 of high-entropy alloy；
2) the prefabricated core part 1 of high-entropy alloy is installed in mold；
3) surface that will determine the prefabricated core part 1 of high-entropy alloy of the alloy heat preservation injection mold of the melting of volume, applies pressure
Compression moulding obtains low melting point shell 2；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
The prefabricated core part 1 of the high-entropy alloy of the dog-ear shape can be plane dog-ear and be also possible to three-dimensional dog-ear, the high entropy of formation
Alloy composite component has preferable stable form in space, while outer surface is that magnesium alloy has preferable processability, matter
Sense.
Embodiment 5:
A kind of high-entropy alloy composite component, as shown in figure 5, including the prefabricated core part 1 of high-entropy alloy and the high entropy of cladding of shaft-like
The low melting point shell 2 of the prefabricated core part 1 of alloy, the prefabricated core part 1 of high-entropy alloy are equipped with groove 3；The material of the prefabricated core part 1 of high-entropy alloy
Material is CoCrFeMnNi, with a thickness of 10mm, and the material of low melting point shell 2 is aluminium alloy, with a thickness of 5mm.
The preparation method of the high-entropy alloy composite component the following steps are included:
1) high-entropy alloy preformed material is prefabricated into the shaft-like of 10mm, obtains the prefabricated core part 1 of high-entropy alloy；
2) the prefabricated core part 1 of high-entropy alloy is installed in mold；
3) surface that will determine the prefabricated core part 1 of high-entropy alloy of the Al alloy thermal insulation injection mold of the melting of volume, applies pressure
Power compression moulding obtains low melting point shell 2；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
Embodiment 6:
A kind of high-entropy alloy composite component, as shown in fig. 6, including the prefabricated core part 1 of high-entropy alloy and the high entropy of cladding of shaft-like
The low melting point shell 2 of the prefabricated core part 1 of alloy, the prefabricated core part 1 of high-entropy alloy are equipped with chamfering 4；The material of the prefabricated core part 1 of high-entropy alloy
Material is CoCrFeMnNi, with a thickness of 10mm, and the material of low melting point shell 2 is aluminium alloy, with a thickness of 5mm.
The preparation method of the high-entropy alloy composite component the following steps are included:
1) high-entropy alloy preformed material is prefabricated into the shaft-like of 10mm, obtains the prefabricated core part 1 of high-entropy alloy；
2) the prefabricated core part 1 of high-entropy alloy is installed in mold；
3) surface that will determine the prefabricated core part 1 of high-entropy alloy of the Al alloy thermal insulation injection mold of the melting of volume, applies pressure
Power compression moulding obtains low melting point shell 2；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
The high-entropy alloy composite component of embodiment 5 and 6 is shaft-like, and core has biggish intensity, external clad
Light processing performance is good, and the prefabricated core part 1 of high-entropy alloy has preferable binding strength with low melting point shell 2.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of high-entropy alloy composite component, which is characterized in that described low including the prefabricated core part of high-entropy alloy and low melting point shell
High molecular material or metal material of the fusing point shell by fusing point lower than 680 DEG C are made, the prefabricated core part of the high-entropy alloy and institute
Stating the ratio between thickness of low melting point shell is 1:0.1-0.99；The prefabricated core part of high-entropy alloy with a thickness of 0.1-20mm.
2. high-entropy alloy composite component as described in claim 1, which is characterized in that the material of the prefabricated core part of high-entropy alloy
It is closed for zirconium base high-entropy alloy, titanium-based high-entropy alloy, copper-based high-entropy alloy, iron-based high-entropy alloy, aluminium base high-entropy alloy, the high entropy of magnesium-based
One of gold, cobalt-based high-entropy alloy, Ni-based high-entropy alloy, rare-earth base high-entropy alloy or a variety of combinations.
3. high-entropy alloy composite component as described in claim 1, which is characterized in that the material of the prefabricated core part of high-entropy alloy
For CrFeCoNiCu or CoCrFeMnNi.
4. high-entropy alloy composite component as described in claim 1, which is characterized in that the material of the low melting point shell be aluminium,
One or more of aluminium alloy, magnesium, magnesium alloy, zinc, kirsite, bismuth, cadmium, tin, lead, dysprosium, indium.
5. high-entropy alloy composite component as described in claim 1, which is characterized in that the material of the low melting point shell is modeling
One or more of material, resin or rubber.
6. high-entropy alloy composite component as described in claim 1, which is characterized in that the prefabricated core part of high-entropy alloy with it is described
The matching of low melting point shell chamfering.
7. high-entropy alloy composite component as described in claim 1, which is characterized in that the thickness of the prefabricated core part of high-entropy alloy
For 5-15mm.
8. a kind of prepare the method such as the described in any item high-entropy alloy composite components of claim 1-7, comprising the following steps:
1) the prefabricated core part of high-entropy alloy is obtained by high-entropy alloy preformed material is prefabricated；
2) the prefabricated core part of high-entropy alloy is installed in mold；
3) by the outside of the prefabricated core part of the high-entropy alloy of the material injecting mould of the low melting point shell of melting, apply pressure and be pressed into
Type obtains low melting point shell；
4) it is cooled and shaped, obtains high-entropy alloy composite component.
9. method according to claim 8, which is characterized in that in step 2), the mold includes die cavity, cast gate and pressure
Storehouse, the cast gate connect Pressure chamber and die cavity, are equipped with induction heating apparatus in the cast gate and die cavity.
10. method as claimed in claim 9, which is characterized in that in step 3), the cast gate and die cavity joint interface section
Area matches with die cavity accent section.
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| CN110253000A (en) * | 2019-06-19 | 2019-09-20 | 南京理工大学 | A kind of preparation method of multiple grain scale multilayer high-entropy alloy |
| CN111390140A (en) * | 2020-05-08 | 2020-07-10 | 广东湘珠建材科技有限公司 | Production process for aluminum plate |
| CN113025928A (en) * | 2021-02-24 | 2021-06-25 | 东莞颠覆产品设计有限公司 | Application of amorphous alloy and/or high-entropy alloy to gong in three-minute form |
| WO2022041636A1 (en) * | 2020-08-31 | 2022-03-03 | 江苏大学 | Rolled (feconicrrn/al)-2024al composite board and preparation method therefor |
| CN114406185A (en) * | 2022-01-13 | 2022-04-29 | 河南科技大学 | Composite material with surface containing high-entropy alloy coating and preparation method thereof |
| CN114645237A (en) * | 2020-12-21 | 2022-06-21 | 武汉苏泊尔炊具有限公司 | Cooking utensil and preparation method thereof |
| CN115404371A (en) * | 2022-08-31 | 2022-11-29 | 昆明理工大学 | Core-shell structure high-entropy alloy and preparation method thereof |
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