CN107475596A - A kind of high entropy intermetallic compound - Google Patents
A kind of high entropy intermetallic compound Download PDFInfo
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- CN107475596A CN107475596A CN201710681712.8A CN201710681712A CN107475596A CN 107475596 A CN107475596 A CN 107475596A CN 201710681712 A CN201710681712 A CN 201710681712A CN 107475596 A CN107475596 A CN 107475596A
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
- C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
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- C22C1/047—Making non-ferrous alloys by powder metallurgy comprising intermetallic compounds
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Abstract
A kind of high entropy intermetallic compound, the present invention relates to a kind of new metallic material preparation field, and in particular to a kind of high entropy intermetallic compound.The purpose of the present invention is to obtain a kind of crystal structure of existing intermetallic compound high-sequential to have the new metallic material of the characteristics of high-entropy alloy more pivots again.A kind of high entropy intermetallic compound compound or Ternary intermetallic compounds between binary metal；The chemical formula type of compound is MN, MN between the binary metal2、M3N、M5N3Or M6N7；The chemical formula type of the Ternary intermetallic compounds is ABC, ABC2、ABC3、AB2C3、AB2C2、ABC4、AB2C4.The high entropy intermetallic compound of the present invention is used for the field such as Aeronautics and Astronautics, military affairs, civilian.
Description
Technical field
The present invention relates to a kind of new metallic material preparation field, and in particular to a kind of high entropy intermetallic compound.
Background technology
At present, metal material field classification mainly includes between simple metal, conventional alloys, non-crystaline amorphous metal, high-entropy alloy, metal
Compound, metal-base composites etc..
High-entropy alloy is a kind of more pivot random solid solution alloys different from other types alloy.So-called more pivot solid solutions
Body alloy, exactly a kind of alloy that there are more than five kinds metallic elements as essential element, mole of every kind of main metal element
The ratio between total mole number of number and the alloy cannot be distinguished by solute and solvent constituent element between 5at.%~30at.%, form letter
Single BCC, FCC, BCC+FCC solid solution phase, suppresses the formation of intermetallic compound.Because a kind of no content of element exceedes
30at.% and be used as essential element, high-entropy alloy characteristic is by each pivot collective leadership, so as to cause the alloy entropy of mixing significantly to increase
Height, high entropic effect, sluggish diffusion effect, distortion of lattice effect and cocktail effect are produced, causes material that there is excellent synthesis
Performance.And intermetallic compound is a kind of and totally different type of orderly metal material of high-entropy alloy.With other types metal
Unlike material, this kind of material is the compound that metal is formed with metal or metal with metalloid (such as silicon, arsenic, tellurium), is had
There are the long-range order crystal structure and metal fundamental characteristics different from its component.Mainly with altogether between its essential element atom
What valence link combined, be a kind of compound, essential element atomic arrangement high-sequential.Due to the presence of covalent bond, make to change between metal
Compound has high intensity, high rigidity, high-melting-point, high creep-resistant property, inductile and special electricity, magnetics, acoustic properties
Deng the material of uniqueness.Either high-entropy alloy or intermetallic compound, all it is the novel metal given priority to both at home and abroad at present
Material.
Therefore, high-entropy alloy is that a kind of more pivot solid solution are formed, it is necessary to suppress intermetallic compound, and intermetallic
This material of thing is mainly to be made up of intermetallic compound, typically to suppress solid solution and be formed.At present, high-entropy alloy is with close etc.
The method addition element of mol ratio, and intermetallic compound is on the basis of the essential element of compound is formed, and adds a small amount of close
Alloying element (similar with traditional metal materials).
The content of the invention
The purpose of the present invention is to obtain a kind of crystal structure of existing intermetallic compound high-sequential to have high-entropy alloy again
The new metallic material of the characteristics of more pivots, and a kind of high entropy intermetallic compound is provided.
A kind of high entropy intermetallic compound compound or Ternary intermetallic compounds between binary metal；The binary metal
Between the chemical formula type of compound be MN, MN2、M3N、M5N3Or M6N7；The chemical formula type of the Ternary intermetallic compounds is
ABC、ABC2、ABC3、AB2C3、AB2C2、ABC4、AB2C4；It is made up of the M for representing 1~8 kind of element and the N for representing 1~8 kind of element
Compound between binary metal containing 5~16 kinds of elements；By representing the A of 1~8 kind of element, the B for representing 1~8 kind of element and generation
The Ternary intermetallic compounds of the C compositions containing 5~24 kinds of elements of 1~8 kind of element of table；Described A, B, C, M and N are from Ti members
Element, Ni elements, Co elements, Nb elements, Ta elements, W elements, Zr elements, Mo elements, Cr elements, Mn elements, Fe elements, Al member
Element, V element, Sc elements, Hf elements, Ru elements, Ga elements, Ge elements, Cu elements, Sn elements, Li elements, Pd elements, Pt members
Selected in element, Ir elements, Si elements, C element, B element and rare earth element；Each member in compound between the binary metal
The atomic percentage of element is 1.5%~77%；In the Ternary intermetallic compounds atomic percentage of each element be 1.5%~
77%；The M and N are not same element, and described A, B and C are not same element；Contain in the high entropy intermetallic compound
There is the intermetallic compound for solid solution, nonmetallic compound or other crystal structures that volume fraction is 0.00001%~20%.
The beneficial effects of the invention are as follows：
High entropy intermetallic compound obtained by the present invention, the characteristics of combining intermetallic compound and high-entropy alloy,
On the basis of intermetallic compound, add close to equimolar than composition intermetallic compound element, essential element be five kinds
Or more than five kinds, so as to again the crystal structure for forming a kind of existing intermetallic compound high-sequential has the more pivots of high-entropy alloy
The new metallic material of feature, this is at home and abroad also reported in documents and materials without identical, the metal material being currently known
Do not possess the characteristics of above-mentioned alloy design, therefore high entropy intermetallic compound proposed by the present invention has obvious novelty.
High entropy intermetallic compound obtained by the present invention has strong bond due to being still intermetallic compound between different types of atom
Close, crystal structure is more stable, and making its atom and dislocation, mobility reduces at high temperature, with high-entropy alloy and traditional metal materials
Compare, there is more excellent hardness, intensity and heat endurance, resistance to elevated temperatures is more preferable, is more useful as high-temperature structural material；
The compound phase ratio between conventional metals, due to the high entropic effect that its more pivot is brought, there is the high entropy intermetallic compound in part
Good temperature-room type plasticity.For example, compared with high-entropy alloy and traditional metal materials, the temperature in use of high entropy intermetallic compound can
To improve 200~400 DEG C；With M3The relatively low temperature-room type plasticity of N-type intermetallic compound (being less than 5%) is compared, part M3The high entropy of N-type
The temperature-room type plasticity of intermetallic compound can bring up to more than 30%, and intensity can also be enhanced about more than once.High entropy intermetallic compound
These characteristics, it is had broad application prospects in the field such as Aeronautics and Astronautics, military affairs, civilian, there is important business valency
Value.
Brief description of the drawings
Fig. 1 is the X-ray diffractogram for the high entropy intermetallic compound of binary that embodiment one obtains；
Fig. 2 is the X-ray diffractogram for the high entropy intermetallic compound of binary that embodiment two obtains；
Fig. 3 is the X-ray diffractogram for the high entropy intermetallic compound of ternary that embodiment three obtains.
Embodiment
Embodiment one：Present embodiment a kind of high entropy intermetallic compound compound or ternary between binary metal
Intermetallic compound；The chemical formula type of compound is MN, MN between the binary metal2、M3N、M5N3Or M6N7；The ternary
The chemical formula type of intermetallic compound is ABC, ABC2、ABC3、AB2C3、AB2C2、ABC4、AB2C4；By representing 1~8 kind of element
M and represent 1~8 kind of element binary metal of the N compositions containing 5~16 kinds of elements between compound；By representing 1~8 kind of element
A, chemical combination between ternary metal of the C compositions containing 5~24 kinds of elements that represents the B of 1~8 kind of element and represent 1~8 kind of element
Thing；Described A, B, C, M and N be from Ti elements, Ni elements, Co elements, Nb elements, Ta elements, W elements, Zr elements, Mo elements,
Cr elements, Mn elements, Fe elements, Al elements, V element, Sc elements, Hf elements, Ru elements, Ga elements, Ge elements, Cu elements,
Selected in Sn elements, Li elements, Pd elements, Pt elements, Ir elements, Si elements, C element, B element and rare earth element；
The atomic percentage of each element is 1.5%~77% in compound between the binary metal；In the Ternary intermetallic compounds
The atomic percentage of each element is 1.5%~77%；The M and N are not same element, and described A, B and C are not same member
Element；In the high entropy intermetallic compound containing volume fraction be 0.00001%~20% solid solution, nonmetallic compound or
The intermetallic compound of other crystal structures.
Solid solution described in present embodiment or nonmetallic compound refer to the intermetallic compounds of other crystal structures with most
End form into the different other amorphous materials of high entropy intermetallic compound crystal structure；Various elements, which are put together, melting and coagulates
Gu a small amount of second phase may be produced, this second phase be probably solid solution may also other non-compounds material.
Embodiment two：Present embodiment is unlike embodiment one：Chemical combination between the binary metal
The selection principle of element is one in any one 1~8 kind of element represented respectively with N in 1~8 kind of element that M is represented in thing
Plant and three kinds of intermetallic compounds in the compound that element reaction is formed at least be present, and the intermetallic compound of reaction formation
Chemical formula type and crystal structure all same, then more than intermetallic compound in element between the binary metal compound
Element selection.Other are identical with embodiment one.
Crystal structure described in present embodiment is identical to be referred to：Metallic crystal makees three-dimensional periodic with its interior atoms in space
It is regularly arranged for its most basic architectural feature it is identical.
Embodiment three：Present embodiment is unlike embodiment one or two：When M is by two kinds or two kinds
It is when above element forms, then identical by mol ratio between each element of M offers in compound between the binary metal；When N by
Two or more element form when, then between the binary metal in compound by N provide each element between mol ratio
It is identical.Other are identical with embodiment one or two.
Embodiment four：Unlike one of present embodiment and embodiment one to three：The ternary gold
The selection principle of element is any one in the A for represented in selected element 1~8 kind of element, represents 1~8 kind in compound between category
At least have two in the compound that any one reaction in any one in the B of element and the C for representing 1~8 kind of element is formed
Kind intermetallic compound, and the chemical formula type and crystal structure all same of the intermetallic compound of reaction formation, then change gold
Element between category in compound selects for the element of the Ternary intermetallic compounds.Other and embodiment one to three it
One is identical.
Crystal structure described in present embodiment is identical to be referred to：Metallic crystal makees three-dimensional periodic with its interior atoms in space
It is regularly arranged for its most basic architectural feature it is identical.
Embodiment five：Unlike one of present embodiment and embodiment one to four：When A by two kinds or
It is during two or more element compositions, then identical by mol ratio between each element of A offers in the Ternary intermetallic compounds, when
When B is made up of two or more element, then by between each element of B offers moles in the Ternary intermetallic compounds
Than identical, when C is made up of two or more element, then by each member of C offers in the Ternary intermetallic compounds
Mol ratio is identical between element.Other are identical with one of embodiment one to four.
Embodiment six：Unlike one of present embodiment and embodiment one to five：The high entropy gold
Compound is prepared by fusion casting, rapid solidification method or rapid solidification method combining powder metallurgy method between category.Other with
One of embodiment one to five is identical.
Embodiment seven：Unlike one of present embodiment and embodiment one to six：The fusion casting
It is that each element is weighed and is well mixed according to mol ratio, melting is then carried out using electric arc furnaces or induction melting furnace,
Alloy is poured into casting mold, obtains high entropy intermetallic compound ingot casting or casting.Other and embodiment one to six it
One is identical.
Embodiment eight：Unlike one of present embodiment and embodiment one to seven：The fast rapid hardening
Gu method is to prepare powder, thin slice or banded high entropy gold by mould refrigeration technique, atomization technique, surface melting and deposition technique
Compound between category.Other are identical with one of embodiment one to seven.
Embodiment nine：Unlike one of present embodiment and embodiment one to eight：The fast rapid hardening
Gu method combining powder metallurgy method is the powder, thin slice or banded high entropy intermetallic compound for obtaining rapid solidification method in height
It is sintered under temperature or high-temperature and high-pressure conditions or is printed using metal 3D printer, obtains high entropy intermetallic compound block
Material or component.Other are identical with one of embodiment one to eight.
Beneficial effects of the present invention are verified using following examples：
Embodiment one：A kind of high entropy intermetallic compound is the high entropy intermetallic compound of binary, and chemical formula type is M3N,
Wherein M is Ni elements and Co elements, and N is Al elements, Si elements and Ti elements；M and N reactions can form Ni3Al、Co3Ti、
Ni3Si and Co3Tetra- kinds of intermetallic compounds of Al, crystal structure is L12, provided by M in compound between the binary metal each
Mol ratio is identical between individual element, identical by mol ratio between each element of N offers in compound between the binary metal, institute
The molar fraction for stating Ni elements in the high entropy intermetallic compound of binary, Co elements, Al elements, Si elements and Ti elements is followed successively by
37.55%th, 37.55%, 8.3%, 8.3%, 8.3%.
Preparation method：Dispensing, Ni elements, Co elements, Al elements, Si elements and Ti are carried out according to above-mentioned molar fraction ratio
The raw material of element is simple substance (purity>99.5wt.%), then dispensing is put into vacuum arc furnace ignition, vacuum arc furnace ignition passes through
Vacuumize and rinsed with high-purity argon gas, melting is carried out to raw material under argon gas protective condition, melt back 5 times, often completed once
Melting needs that melting will be carried out again after 180 ° of ingot overturning；By through last time melting and solidify obtain ingot casting cooling after from
Taken out in vacuum arc furnace ignition, the material of acquisition is binary M3The high entropy intermetallic compound of N-type.
This binary M3The high entropy intermetallic compound of N-type can also use flash set technology (such as：Mould refrigeration technique, atomization skill
Art, surface melting and deposition technique) prepare, prepare powder, thin slice or banded binary M3The high entropy intermetallic of N-type
Thing.Binary M3The high entropy intermetallic compound of N-type can also use PM technique to prepare：Using flash set technology or machinery
Alloying process prepares powder, thin slice or banded binary M3The high entropy intermetallic compound of N-type, powder, thin slice or band
The binary M of shape3The high entropy intermetallic compound of N-type is sintered or utilized metal 3D printer under high temperature or high-temperature and high-pressure conditions
Printed, obtain binary M3The high entropy intermetallic compound block materials of N-type or component.
Fig. 1 is the X-ray diffractogram for the high entropy intermetallic compound of binary that embodiment one obtains, as can be seen from Figure most
The binary M obtained eventually3The high entropy intermetallic compound crystal structure of N-type is still mainly L12, solid solution or nonmetallic compound or its
The volume fraction of the intermetallic compound of its crystal structure is only 5%~10%；Between the high entropy metal of binary that embodiment one obtains
Compound and Ni3Al、Co3Ti、Ni3Si、Co3Tetra- kinds of intermetallic compound phase ratios of Al, this binary M3The high entropy intermetallic compound of N-type
Excellent mechanical property is shown, its room-temperature yield strength and plasticity can be enhanced about more than once.
Embodiment two：A kind of high entropy intermetallic compound is the high entropy intermetallic compound of binary, and chemical formula type is MN, its
Middle M is Co elements, Fe elements, Ni elements and Ti elements, and N is Al elements；M and N reaction can be formed CoAl, FeAl, NiAl and
Tetra- kinds of intermetallic compounds of FeTi, crystal structure is B2, between the binary metal in compound by M provide each element it
Between mol ratio it is identical, Co elements in the high entropy intermetallic compound of binary, Fe elements, Ni elements, Ti elements and Al elements
Molar fraction is followed successively by 12.5%, 12.5%, 12.5%, 12.5%, 50.0%.
Preparation method：Dispensing, Co elements, Fe elements, Ni elements, Ti elements and Al are carried out according to above-mentioned molar fraction ratio
Element raw material is simple substance (purity>99.5wt.%), then dispensing is put into vacuum arc furnace ignition, vacuum arc furnace ignition is by taking out
Vacuum is simultaneously rinsed with high-purity argon gas, is carried out melting to raw material under argon gas protective condition, melt back 5 times, is often completed once to melt
Refining needs that melting will be carried out again after 180 ° of ingot overturning；From true after the ingot casting obtained through last time melting and solidification is cooled down
Taken out in empty electric arc furnaces, the material of acquisition is the high entropy intermetallic compound of binary MN types.
The high entropy intermetallic compound of this binary MN types can also use flash set technology (such as：Mould refrigeration technique, atomization skill
Art, surface melting and deposition technique) prepare, prepare powder, thin slice or the high entropy intermetallic compound of banded binary MN types.
The high entropy intermetallic compound of binary MN types can also use PM technique to prepare：Using flash set technology or mechanical alloy
Change technology prepares powder, thin slice or the high entropy intermetallic compound of banded binary MN types, powder, thin slice or banded two
First high entropy intermetallic compound of MN types is sintered under high temperature or high-temperature and high-pressure conditions or beaten using metal 3D printer
Print, obtains the high entropy intermetallic compound block materials of binary MN types or component.
The high entropy intermetallic compound crystal structure of binary MN types finally given still predominantly B2, solid solution or non-metallic
The volume fraction of the intermetallic compound of compound or other crystal structures is only that 8%~15%, Fig. 2 is two that embodiment two obtains
The X-ray diffractogram of the high entropy intermetallic compound of member, the high entropy intermetallic of binary MN types finally given as seen from the figure
Thing crystal structure is still mainly the volume integral of the intermetallic compound of B2, solid solution or nonmetallic compound or other crystal structures
Number is only 8%~15%；The high entropy intermetallic compound of binary that embodiment two obtains and tetra- kinds of CoAl, FeAl, NiAl and FeTi
Intermetallic compound phase ratio, the high entropy intermetallic compound of this binary MN types show excellent mechanical property, and its room temperature hardness can
To be enhanced about more than once.
Embodiment three：A kind of high entropy intermetallic compound is the high entropy intermetallic compound of ternary, and chemical formula type is A2BC,
Wherein A is Ti elements, and B is Al elements, and C is Nb elements, Mo elements and Zr elements；A, B and C reactions can form Ti2AlNb、
Ti2Two kinds of intermetallic compounds of AlMo, crystal structure is B2, each member provided in the Ternary intermetallic compounds by C
Mol ratio is identical between element, Ti elements, Al elements, Nb elements, Mo elements and Zr members in the high entropy intermetallic compound of ternary
The molar fraction of element is followed successively by 50%, 24.8%, 8.4%, 8.4%, 8.4%.
Preparation method：Dispensing, Ti elements, Al elements, Nb elements, Mo elements and Zr are carried out according to above-mentioned molar fraction ratio
Element raw material is simple substance (purity>99.5wt.%), then dispensing is put into vacuum arc furnace ignition, vacuum arc furnace ignition is by taking out
Vacuum is simultaneously rinsed with high-purity argon gas, is carried out melting to raw material under argon gas protective condition, melt back 5 times, is often completed once to melt
Refining needs that melting will be carried out again after 180 ° of ingot overturning；From true after the ingot casting obtained through last time melting and solidification is cooled down
Taken out in empty electric arc furnaces, the material of acquisition is ternary A2The high entropy intermetallic compound of BC types.
This ternary A2The high entropy intermetallic compound of BC types can also use flash set technology (such as：Mould refrigeration technique, atomization skill
Art, surface melting and deposition technique) prepare, prepare powder, thin slice or banded ternary A2The high entropy intermetallic of BC types
Thing.Ternary A2The high entropy intermetallic compound of BC types can also use PM technique to prepare：Using flash set technology or machine
Tool alloying process prepares powder, thin slice or banded ternary A2The high entropy intermetallic compound of BC types, powder, thin slice or bar
The ternary A of banding2The high entropy intermetallic compound of BC types is sintered under high temperature or high-temperature and high-pressure conditions or beaten using metal 3D
Print machine is printed, and obtains ternary A2The high entropy intermetallic compound block materials of BC types or component.
The ternary A finally given2The high entropy intermetallic compound crystal structure of BC types still predominantly B2, solid solution or nonmetallic
The volume fraction of the intermetallic compound of compound or other crystal structures is only that 4%~8%, Fig. 3 obtains for embodiment three
The X-ray diffractogram of the high entropy intermetallic compound of ternary, the ternary A finally given as seen from the figure2Between the high entropy metal of BC types
Compound crystal structure is still mainly the body of the intermetallic compound of B2, solid solution or nonmetallic compound or other crystal structures
Fraction is only 4%~8%；The high entropy intermetallic compound of ternary and Ti that embodiment three obtains2AlNb、Ti2Two kinds of metals of AlMo
Between compound phase ratio, this ternary A2The high entropy intermetallic compound of BC types shows excellent mechanical property, its room-temperature yield strength
And hardness can improve more than 30%.
In addition to above-mentioned specific embodiment, the high entropy gold for the heterogeneity that every design method according to the present invention is obtained
Compound between category, and improvement or change on the basis of the present invention, are all contained in the range of patent of the present invention.
Claims (9)
1. a kind of high entropy intermetallic compound, it is characterised in that high entropy intermetallic compound compound or ternary between binary metal
Intermetallic compound；The chemical formula type of compound is MN, MN between the binary metal2、M3N、M5N3Or M6N7；The ternary gold
The chemical formula type of compound is ABC, ABC between category2、ABC3、AB2C3、AB2C2、ABC4、AB2C4；By the M for representing 1~8 kind of element
And represent compound between binary metal of the N compositions containing 5~16 kinds of elements of 1~8 kind of element；By represent 1~8 kind of element A,
Represent the B of 1~8 kind of element and represent Ternary intermetallic compounds of the C compositions containing 5~24 kinds of elements of 1~8 kind of element；Institute
It is from Ti elements, Ni elements, Co elements, Nb elements, Ta elements, W elements, Zr elements, Mo elements, Cr members to state A, B, C, M and N
Element, Mn elements, Fe elements, Al elements, V element, Sc elements, Hf elements, Ru elements, Ga elements, Ge elements, Cu elements, Sn member
Selected in element, Li elements, Pd elements, Pt elements, Ir elements, Si elements, C element, B element and rare earth element；It is described
The atomic percentage of each element is 1.5%~77% in compound between binary metal；Each member in the Ternary intermetallic compounds
The atomic percentage of element is 1.5%~77%；The M and N are not same element, and described A, B and C are not same element；
In the high entropy intermetallic compound containing volume fraction be 0.00001%~20% solid solution, nonmetallic compound or its
The intermetallic compound of his crystal structure.
A kind of 2. high entropy intermetallic compound according to claim 1, it is characterised in that compound between the binary metal
The selection principle of middle element is a kind of in any one 1~8 kind of element represented respectively with N in 1~8 kind of element that M is represented
Three kinds of intermetallic compounds, and the change of the intermetallic compound of reaction formation in the compound that element reaction is formed at least be present
Formula type and crystal structure all same, then more than intermetallic compound in element between the binary metal compound
Element selects.
3. a kind of high entropy intermetallic compound according to claim 1, it is characterised in that when M is by two or more yuan
It is during element composition, then identical by mol ratio between each element of M offers in compound between the binary metal；When N by two kinds or
It is during two or more element compositions, then identical by mol ratio between each element of N offers in compound between the binary metal.
A kind of 4. high entropy intermetallic compound according to claim 1, it is characterised in that the Ternary intermetallic compounds
The selection principle of middle element is any one in the A for represented in selected element 1~8 kind of element, represent the B of 1~8 kind of element in appoint
Two kinds of intermetallics at least be present in the compound that a kind of any one reaction with the C for representing 1~8 kind of element is formed of anticipating
Thing, and the chemical formula type and crystal structure all same of the intermetallic compound of reaction formation, then change in intermetallic compound
Element for the Ternary intermetallic compounds element select.
5. a kind of high entropy intermetallic compound according to claim 1, it is characterised in that when A is by two or more yuan
Element composition when, then in the Ternary intermetallic compounds by A provide each element between mol ratio it is identical, when B by two kinds or
It is during two or more element compositions, then identical by mol ratio between each element of B offers in the Ternary intermetallic compounds, when
When C is made up of two or more element, then by between each element of C offers moles in the Ternary intermetallic compounds
Than identical.
A kind of 6. high entropy intermetallic compound according to claim 1, it is characterised in that the high entropy intermetallic compound
It is prepared by fusion casting, rapid solidification method or rapid solidification method combining powder metallurgy method.
7. a kind of high entropy intermetallic compound according to claim 1, it is characterised in that the fusion casting is by each element
Weighed and be well mixed according to mol ratio, melting is then carried out using electric arc furnaces or induction melting furnace, alloy is poured into a mould
Into casting mold, high entropy intermetallic compound ingot casting or casting are obtained.
8. a kind of high entropy intermetallic compound according to claim 1, it is characterised in that the rapid solidification method is to pass through
Mould refrigeration technique, atomization technique, surface melting and deposition technique prepare powder, thin slice or banded high entropy intermetallic
Thing.
A kind of 9. high entropy intermetallic compound according to claim 1, it is characterised in that the rapid solidification method combination powder
Last metallurgy method is that the powder, thin slice or banded high entropy intermetallic compound for obtaining rapid solidification method are high in high temperature or high temperature
It is sintered under the conditions of pressure or is printed using metal 3D printer, obtains high entropy intermetallic compound block materials or structure
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710681712.8A CN107475596B (en) | 2017-08-10 | 2017-08-10 | High-entropy intermetallic compound |
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| CN108359977A (en) * | 2018-04-11 | 2018-08-03 | 昆明理工大学 | A kind of laser melting coating FeCoVWNbSc high-entropy alloy powders and application method |
| CN108374113A (en) * | 2018-04-11 | 2018-08-07 | 长沙理工大学 | A kind of preparation method of TaTiZrAlSi high-entropy alloys and its powder |
| CN109023002A (en) * | 2018-08-15 | 2018-12-18 | 北京理工大学 | A kind of silicon solution strengthening VNbMoTaSi high-entropy alloy and preparation method thereof |
| CN109622979A (en) * | 2019-01-11 | 2019-04-16 | 湘潭大学 | A kind of preparation method of pre-alloyed high-entropy alloy porous material |
| CN109763057A (en) * | 2018-12-24 | 2019-05-17 | 江苏理工学院 | A kind of Fe-Co-Ni-Mn-Cu-B-C high entropy alloy material and preparation method thereof |
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| CN112981155A (en) * | 2019-12-13 | 2021-06-18 | 中国科学院大连化学物理研究所 | Preparation method of binary intermetallic compound |
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| CN108359977A (en) * | 2018-04-11 | 2018-08-03 | 昆明理工大学 | A kind of laser melting coating FeCoVWNbSc high-entropy alloy powders and application method |
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