CN107663607A - A kind of high-entropy alloy holds composite of abrasive grain and its preparation method and application - Google Patents
A kind of high-entropy alloy holds composite of abrasive grain and its preparation method and application Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- 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
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Abstract
Composite of abrasive grain and its preparation method and application is held the present invention relates to a kind of high-entropy alloy, belongs to high-entropy alloy applied technical field.High-entropy alloy of the present invention holds abrasive grain in the form of carcass.The high-entropy alloy is made up of with atomic percentage following components：Fe10%~30%；Co10%~30%；Cr10%~30%；Ni10%~30%；Cu10%~30%；Mo0~8%.Its preparation method is：By design component with the high-entropy alloy powder after drawing high-entropy alloy material powder, prepared using gas atomization and mechanical alloying method, then in conjunction with SPS techniques, the composite of function admirable is obtained.The composite is especially suitable for as cutter head.The present invention is used to hold abrasive grain first using high-entropy alloy as carcass；Its component is reasonable in design, preparation technology science, controllable products obtained therefrom function admirable, is easy to large-scale industrialization application.
Description
Technical field
Composite of abrasive grain and its preparation method and application is held the present invention relates to a kind of high-entropy alloy, belongs to high
Entropy Alloyapplication technical field.
Background technology
Diamond saw blade has the characteristics of hardness is high, and wearability is good, is that dosage is maximum in all kinds of diamond tool based articles
A kind of product, be widely used in cutting stone material, refractory material, ceramics, concrete and glass etc..At present, diamond saw blade master
The problem of existing is, in cutting process, diamond particles in cutter head are plated the part tire of diamond by severe impact
Body is destroyed, and is caused diamond abrasive grain to come off and is lost cutting effect.Particularly under height friction, hot environment, existing gold
Diamond saw blade causes service life to shorten or even scrap suddenly because high-temperature behavior drastically reduces.Therefore, how diamond is strengthened
Cutter head carcass makes diamond not come off too early in cutting the hold of diamond and the high temperature stability performance of cutter head, from
And improve the cutting efficiency of diamond tool and working life is recognized problem in industry.
Multicomponent high-entropy alloy is the alloy system that a new development is got up, and the alloy is by 5 kinds or more than 5 kinds of element group
Into.Multielement, which forms, causes alloy that there is higher entropy and atom to be not easy the characteristic spread, and it is high to be readily available heat endurance
Solid solution phase and nanostructured, there is high intensity and hardness, good anti-wear performance, excellent heat endurance and corrosion resistance
Can, its performance is much better than conventional alloys, has very big potentiality in academic research and huge industrial development.
For a long time, do diamond segment carcass material with metal has two kinds of approach substantially, and one kind is to use metal simple-substance powder
Carcass material is done in end mixing；Another kind is to adulterate other metal simple-substance powder with alloy powder to do carcass material.But both
All defective, the former is due to the difference of the properties such as the fusing point of different metal, hardness so that the bad control of property of carcass material
System；The latter's alloy powder can not integrate the excellent properties of all metals, in actual use due to adding other metal dusts
And cause carcass material complicated components, influence its performance.Have at present and high entropy is prepared for using Mechanical Alloying
Alloy powder, as Chinese patent CNl033290404A, CNl04841930A and CNl0540l038A using ball-milling method are prepared for height
Entropy alloy powder.But powder oxygen content height, uneven components and powder prepared by single Mechanical Alloying is easily reunited,
It is unfavorable for mixing with the uniform of diamond particle.Aerosolization is to prepare one of main method of metal dust, have oxygen content it is low,
The features such as composition is uniform, powder size is controllable, pollution is few.The present invention organically combines gas-atomized powder and mechanical alloying, makes
The atomized powder of high-purity is able to activation process before thermal sintering, to provide preferably powder sintered performance.Using machinery
High-entropy alloy powder material prepared by alloyed activator processing aerosolization flash set technology has not yet to see report.
Under normal circumstances, enveloping inlaid type diamond segment is all in certain mass ratio by diamond particles and carcass bonding agent
Directly mixed etc. parameter, also can be most of at present first through cold moudling again through hot-forming, in a word then by hot-forming
Enveloping inlaid type diamond saw blade is all that this technique is made by hot pressed sintering.Hot pressing is only applicable to the sample of sintered shape rule,
Although simple with operating method, cost is cheap, may be implemented in many advantages such as mass production in the case of low input,
Also the fatal defects such as the oxidizable loss of its high energy consumption, labour intensive, graphite jig can not be avoided, so being normally used for low and middle-grade
In monoblock type sintered saw bits, the thermal sintering of high-entropy alloy powder is not suitable for.
Discharge plasma sintering technique (Spark Plasma Sintering, abbreviation SPS), it is a kind of quick, energy-conservation, ring
The novel powder sintering technology of guarantor.The technology is melted plasma activation, hot pressing and resistance heating and is integrated, between the powder particle that pressurizes
High-frequency pulse current is passed directly into, the plasma as caused by spark discharge moment is heated, thus has warming and cooling rate
It hurry up, the advantages that sintering temperature is low, sintering time is short, sintered body crystal grain is uniformly tiny.It has been applied to refractory metal material, pottery
The preparation of porcelain, functional material and composite.Its energy expenditure relative to conventional thermocompression sinter and HIP sintering, only before
The 1/5-1/3 of person, thus to realize material high-quality and efficient, that low consumption is inexpensive prepare, process it is significant.Especially its
Ostwald ripening effect can be greatly decreased in the characteristics of rapid temperature rise and drop, suitable for sintering into for high-entropy alloy powder
Shape.
The content of the invention
The present invention has attempted to hold high-entropy alloy into the composite of abrasive grain for preparing high-entropy alloy first.
A kind of high-entropy alloy of the present invention holds the composite of abrasive grain；The high-entropy alloy is held in the form of carcass
Abrasive grain.Abrasive grain is embedded in high-entropy alloy carcass in the composite of the high-entropy alloy holding abrasive grain.
A kind of high-entropy alloy of the present invention holds the composite of abrasive grain；The high-entropy alloy with atomic percentage by
Following component compositions：
Fe 10%~30%；
Co 10%~30%；
Cr 10%~30%；
Ni 10%~30%；
Cu 10%~30%；
Mo 0~8%.
Preferably, a kind of high-entropy alloy of the present invention holds the composite of abrasive grain；In the high-entropy alloy,
In terms of atomicity, Fe：Co：Cr：Ni：Cu=1:1:1:1:1.
Preferably, a kind of high-entropy alloy of the present invention holds the composite of abrasive grain；The abrasive grain choosing
From diamond, ceramic particle.The ceramic particle is wear-resistant ceramic particle.The wear-resistant ceramic particle is preferably carborundum
Grain, corundum in granules, at least one of carbon nitrogen inorganic compound particle.
Preferably, a kind of high-entropy alloy of the present invention holds the composite of abrasive grain；The abrasive grain accounts for
The 2~10% of composite gross mass.
Preferably, a kind of high-entropy alloy of the present invention holds the composite of abrasive grain；The abrasive grain
Particle diameter is preferably 100~150um.
A kind of high-entropy alloy of the present invention holds the preparation method of the composite of abrasive grain, comprises the steps：
Step 1
Match somebody with somebody by design component and take Fe sources, Co sources, Cr sources, Ni sources, Cu sources, Mo sources；By with take Fe sources, Co sources, Cr sources, Ni
After source, Cu sources, Mo sources are heated to fusing, gas-atomized powder is carried out to obtain high-entropy alloy powder；
Step 2
The high-entropy alloy powder prepared by step 1 is placed in ball mill, carries out ball milling, obtain mechanical alloying-work
High-entropy alloy powder after change processing；
Step 3
Match somebody with somebody the high-entropy alloy after taking abrasive grain and mechanical alloying-activation process prepared by step 2 as design component
Powder, and be well mixed；Then discharge plasma sintering process is used, the composite wood that high-entropy alloy holds abrasive grain is made
Material；The condition of the discharge plasma sintering process is：700~1000 DEG C of sintering temperature, 180~1200s of soaking time, sintering
40~100 DEG C 20~40MPa of pressure, heating rate/min, air pressure 10 in stove-3~10-1Pa。
A kind of high-entropy alloy of the present invention holds the preparation method of the composite of abrasive grain, in step 1, the Fe sources
Preferably simple substance Fe, Co source are preferably simple substance Co, and Cr sources are preferably simple substance Cr, and Ni sources are preferably simple substance Ni, and Cu sources are preferably single
Matter Cu, Mo sources are preferably simple substance Mo.In industrial applications, Fe sources, Co sources, Cr sources, Ni sources, Cu sources, the purity in Mo sources are big
In equal to 99.9wt%.
In industrial applications, Fe sources, Co sources, Cr sources, Ni sources, Cu sources, the Mo sources of any form are used equally for the present invention.
A kind of high-entropy alloy of the present invention holds the preparation method of the composite of abrasive grain, in step 1, by with taking
Fe sources, Co sources, Cr sources, Ni sources, Cu sources, Mo sources are heated to melting, after being well mixed, using nitrogen or argon gas as atomizing medium,
High-entropy alloy powder is prepared under 2~2.5atm pressure.
Preferably, a kind of high-entropy alloy of the present invention holds the preparation method of the composite of abrasive grain, step
Prepared high-entropy alloy powder in one, particle diameter is preferably 45~75um.
A kind of high-entropy alloy of the present invention holds the preparation method of the composite of abrasive grain, in step 2, Ball-milling Time
For 5~20h, rotational speed of ball-mill is 100~300r/min, ratio of grinding media to material 5：1~15：1.This passes through vacuum melting inert gas atomizer method
Obtained with mechanical alloying, the high-entropy alloy powder after activation, the heat endurance of the powder is good, and granule-morphology is irregular
Sheet, and particle size uniformity is tiny, suppression performance is good.
A kind of high-entropy alloy of the present invention holds the preparation method of the composite of abrasive grain, in step 2, mechanical milling process
Abrasive material can not be added；If addition can cause excessive wear to ball milling bucket and spheroid, so as to introduce excessive levels of impurities, carcass powder is influenceed
Last component ratio.
A kind of high-entropy alloy of the present invention holds the preparation method of the composite of abrasive grain, mechanical alloy obtained by step 2
The average grain diameter of high-entropy alloy powder after change-activation process is 10-20 microns.
The bending strength for the composite that high-entropy alloy that is of the invention designed and preparing holds abrasive grain reaches 1300
~1400MPa, hardness reach HV500~630, and consistency reaches 97~99%.
A kind of high-entropy alloy of the present invention holds the application of the composite of abrasive grain, including the high-entropy alloy is held
The composite of abrasive grain is used as cutter head.In use, the present invention design and prepare cutter head can be used for cut high rigidity,
The material of hardly possible cutting.
The present invention is burnt using high-entropy alloy as carcass material with abrasive material (such as other wear-resistant ceramics of diamond, corundum)
Knot, can not only simplify component but also can meet the requirement of metal matrix material, can be with by the excellent properties of high-entropy alloy
Improve bending strength, impact resistance and the anti-wear performance of cutter head, and strengthen to the hold of abrasive material, have very big potentiality with it is good
Good application prospect.
The advantages of invention and good effect
The present invention compared with the prior art, has the following advantages and beneficial effect：
(1) the high-entropy alloy formula that present invention selection is prepared using vacuum melting inert gas atomizer method and mechanical alloying
Powder, this alloy powder are simple substance FCC phases, and it has good heat endurance, and granule-morphology is more irregular, particle size uniformity
Tiny, suppression performance is good, overcomes oxidizable powder prepared by mechanical alloying method, uneven components and easily reunites scarce
Point.
(2) high entropy alloy material has high intensity and hardness, good anti-wear performance and excellent heat endurance, to abrasive material
Particle (such as diamond) has good hold.Using high entropy alloy material as carcass material, traditional metal tire is overcome
Body material is not good enough to the hold of abrasive material, wears no resistance, it is high temperatures difference and service life it is short the shortcomings that.
(3) present invention is used and high-entropy alloy powder and abrasive grain is quickly burnt using spark plasma sintering technology
Form type, obtain abrasive grain be uniformly distributed, abrasive grain and the basic interface cohesion of high-entropy alloy it is good, high-entropy alloy crystal grain
The tissue of fine uniform.Tool tip material bending strength after sintering reaches 1300~1400MPa, and hardness reaches HV500~630,
Consistency reaches 97~99%.Compared with existing hot press forming technology, discharge plasma sintering process of the invention can be effective
Reduction energy consumption, reduce the oxidation loss of graphite jig, to realize high quality and low cost diamond saw blade prepare have it is important
Meaning.
Brief description of the drawings
Accompanying drawing 1 is the FeCoCrNiCuMo after mechanical alloying activation0.1The XRD spectrum of high-entropy alloy powder.
Accompanying drawing 2 is the FeCoCrNiCuMo after mechanical alloying activation0.1The SEM shape appearance figures of high-entropy alloy powder.
Accompanying drawing 3 is the FeCoCrNiCuMo after SPS sintering0.1The SEM organization charts of high-entropy alloy cutter head.
Accompanying drawing 4 is that SPS sinters high-entropy alloy cutter head saw disc.
With reference to accompanying drawing 1, accompanying drawing 2 as can be seen that powder is entirely the high-entropy alloy powder of simple solid solution structure.
From accompanying drawing 3 as can be seen that black portions are diamond particles in figure, greyish white color part is high-entropy alloy carcass, gold
Hard rock particle is well combined with carcass.
From accompanying drawing 4 as can be seen that prepared high-entropy alloy cutter head saw disc excellent surface quality.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is lower premised on technical solution of the present invention to be carried out in fact
Apply, give detailed embodiment and specific operation process.High-entropy alloy cutter head prepared by the present invention has high intensity and height
Fine and close feature, the high-entropy alloy tool tip material bending strength of preparation reach 1300~1400MPa, hardness reach HV500~630,
Preferably HV530~630, consistency reach 97~99%.
Embodiment 1：
Prepare the FeCoCrNiCuMo for plating the diamond that mass ratio is 5%0.1High-entropy alloy cutter head：1) prepare
FeCoCrNiCuMo0.1High-entropy alloy formula powder, raw material using high-purity Fe, high-purity Co, high-purity Cr, high-purity N i, high-purity Cu and
The bulk metal material such as high-purity Mo, Fe, Co, Cr, Ni, Cu and Mo atomic percent are 1：1：1：1：1：0.1；At 1500 DEG C
Melt is fused into, melt is atomized quick solidification under 2MPa pressure, and 45~75um high-entropy alloy powder, alloy are obtained after screening
Powder is 10 in ratio of grinding media to material：1, ball milling 10h carries out activation process under the conditions of rotating speed is 200r/min.2) it is 95 according to mass ratio：5
Weigh high-entropy alloy powder and diamond abrasive grain (granularity of abrasive particle is 100 microns) respectively, be well mixed, then electric discharge etc. from
Sinter molding in sub- sintering furnace, sintering temperature T1=850 DEG C, heating rate v1=60 DEG C/min, the heat-insulation pressure keeping time is t1
=480s, application pressure are P1=35MPa, vacuum P2=10-3Pa.Tool tip material bending strength after sintering reaches
1350MPa, hardness reach HV590, and consistency reaches 98.1%.
Embodiment 2：
Prepare the FeCoCrNiCuMo for plating the diamond that mass ratio is 2%0.1High-entropy alloy cutter head：1) prepare
FeCoCrNiCuMo0.1High-entropy alloy formula powder, raw material using high-purity Fe, high-purity Co, high-purity Cr, high-purity N i, high-purity Cu and
The bulk metal material such as high-purity Mo, Fe, Co, Cr, Ni, Cu and Mo atomic percent are 1：1：1：1：1：0.1；At 1500 DEG C
Melt is fused into, melt is atomized quick solidification under 2.2MPa pressure, and 45~75um high-entropy alloy powder is obtained after screening, is closed
Bronze end is 10 in ratio of grinding media to material：1, ball milling 10h carries out activation process under the conditions of rotating speed is 200r/min.2) it is according to mass ratio
98：2 weigh high-entropy alloy powder and diamond abrasive grain (granularity of abrasive particle is 100 microns) respectively, are well mixed, are then discharging
Sinter molding in plasma agglomeration stove, sintering temperature are T1=900 DEG C, and heating rate is v1=60 DEG C/min, during heat-insulation pressure keeping
Between be t1=480s, application pressure is P1=35MPa, vacuum P2=10-3Pa.Tool tip material bending strength after sintering reaches
To 1400MPa, hardness reaches HV620, and consistency reaches 98.8%.
Embodiment 3：
Prepare the FeCoCrNiCuMo for plating the diamond that mass ratio is 8%0.1High-entropy alloy cutter head：1) prepare
FeCoCrNiCuMo0.1High-entropy alloy formula powder, raw material using high-purity Fe, high-purity Co, high-purity Cr, high-purity N i, high-purity Cu and
The bulk metal material such as high-purity Mo, Fe, Co, Cr, Ni, Cu and Mo atomic percent are 1：1：1：1：1：0.1；At 1500 DEG C
Melt is fused into, melt is atomized quick solidification under 2.1MPa pressure, and 45~75um high-entropy alloy powder is obtained after screening, is closed
Bronze end is 10 in ratio of grinding media to material：1, ball milling 10h carries out activation process under the conditions of rotating speed is 200r/min.2) it is according to mass ratio
92：8 weigh high-entropy alloy powder and diamond abrasive grain (granularity of abrasive particle is 100 microns) respectively, are well mixed, are then discharging
Sinter molding in plasma agglomeration stove, sintering temperature are T1=850 DEG C, and heating rate is v1=60 DEG C/min, during heat-insulation pressure keeping
Between be t1=480s, application pressure is P1=35MPa, vacuum P2=10-3Pa.Tool tip material bending strength after sintering reaches
To 1310MPa, hardness reaches HV530, and consistency reaches 97.2%.
Embodiment 4：
Prepare the high-entropy alloy cutter head for the FeCoCrNiCu for plating the diamond that mass ratio is 5%：1) prepare
FeCoCrNiCu high-entropy alloy formula powder, raw material are using blocks such as high-purity Fe, high-purity Co, high-purity Cr, high-purity N i and high-purity Cu
Body metal material, Fe, Co, Cr, Ni and Cu atomic percent are 1：1：1：1：1；Melt is fused at 1500 DEG C, melt exists
Quick solidification is atomized under 2.1MPa pressure, 45~75um high-entropy alloy powder is obtained after screening, alloy powder is in ratio of grinding media to material
10：1, ball milling 10h carries out activation process under the conditions of rotating speed is 200r/min.2) it is 95 according to mass ratio：5 weigh high entropy respectively closes
Bronze end and diamond abrasive grain (granularity of abrasive particle is 100 microns), are well mixed, are then sintered in discharge plasma sintering stove
Shaping, sintering temperature are T1=800 DEG C, and heating rate is v1=60 DEG C/min, and the heat-insulation pressure keeping time is t1=600s, apply pressure
Strong is P1=35MPa, vacuum P2=10-3Pa.Tool tip material bending strength after sintering reaches 1330MPa, and hardness reaches
HV550, consistency reach 97.5%.
Embodiment 5：
Prepare the FeCoCrNiCuMo for plating the diamond that mass ratio is 5%0.4High-entropy alloy cutter head：1) prepare
FeCoCrNiCuMo0.4High-entropy alloy formula powder, raw material using high-purity Fe, high-purity Co, high-purity Cr, high-purity N i, high-purity Cu and
The bulk metal material such as high-purity Mo, Fe, Co, Cr, Ni, Cu and Mo atomic percent are 1：1：1：1：1：0.4；At 1500 DEG C
Melt is fused into, melt is atomized quick solidification under 2.1MPa pressure, and 45~75um high-entropy alloy powder is obtained after screening, is closed
Bronze end is 10 in ratio of grinding media to material：1, ball milling 10h carries out activation process under the conditions of rotating speed is 200r/min.2) it is according to mass ratio
95：5 weigh high-entropy alloy powder and diamond abrasive grain (granularity of abrasive particle is 100 microns) respectively, are well mixed, are then discharging
Sinter molding in plasma agglomeration stove, sintering temperature are T1=950 DEG C, and heating rate is v1=60 DEG C/min, during heat-insulation pressure keeping
Between be t1=480s, application pressure is P1=35MPa, vacuum P2=10-3Pa.Tool tip material bending strength after sintering reaches
To 1380MPa, hardness reaches HV600, and consistency reaches 98.5%.
Contrast is 1
Designing matrix component is：Cu 42-49%, Fe 32-37%, Ni8%, Sn1-5%, Co2-8%, using Dong Hongfeng
The preparation condition that page 29 to page 31 of thesis for the doctorate, obtains series of samples, and in series of samples, bending strength is only up to
545MPa。
Contrast is 2
Designing matrix component is：Cu 21-26%, Fe 63-54%, Ni8%, Sn5-9%, Co, using doctor Dong Hongfeng
The preparation condition that page 29 to page 31 of paper, obtains series of samples, and in series of samples, bending strength is only up to 700MPa.
Claims (10)
1. a kind of high-entropy alloy holds the composite of abrasive grain；It is characterized in that：The high-entropy alloy is in the form of carcass
Hold abrasive grain.
2. a kind of high-entropy alloy according to claim 1 holds the composite of abrasive grain；It is characterized in that；The height
Entropy alloy is made up of with atomic percentage following components：
3. a kind of high-entropy alloy according to claim 2 holds the composite of abrasive grain；It is characterized in that：The height
In entropy alloy, in terms of atomicity, Fe：Co：Cr：Ni：Cu=1:1:1:1:1.
4. a kind of high-entropy alloy according to claim 1 holds the composite of abrasive grain；It is characterized in that：The mill
Expect that particle is selected from diamond, ceramic particle.
5. a kind of high-entropy alloy according to claim 1 holds the composite of abrasive grain；It is characterized in that：The mill
Material particle accounts for the 2~10% of composite gross mass；The particle diameter of the abrasive grain is 100~150um.
6. a kind of method for preparing the high-entropy alloy as described in claim 1-5 any one and holding the composite of abrasive grain,
It is characterized in that；Comprise the steps：
Step 1
Match somebody with somebody by design component and take Fe sources, Co sources, Cr sources, Ni sources, Cu sources, Mo sources；By with take Fe sources, Co sources, Cr sources, Ni sources,
After Cu sources, Mo sources are heated to fusing, gas-atomized powder is carried out to obtain high-entropy alloy powder；
Step 2
The high-entropy alloy powder prepared by step 1 is placed in ball mill, carries out ball milling, obtain at mechanical alloying-activation
High-entropy alloy powder after reason；
Step 3
Match somebody with somebody the high-entropy alloy powder after taking abrasive grain and mechanical alloying-activation process prepared by step 2 as design component
End, and be well mixed；Then discharge plasma sintering process is used, the composite that high-entropy alloy holds abrasive grain is made；
The condition of the discharge plasma sintering process is：700~1000 DEG C of sintering temperature, 180~1200s of soaking time, sintering pressure
40~100 DEG C 20~40MPa of power, heating rate/min, air pressure 10 in stove-3~10-1Pa。
7. a kind of high-entropy alloy according to right wants 6 holds the preparation method of the composite of abrasive grain, its feature exists
In：In step 1, it will be heated to melting with the Fe sources, Co sources, Cr sources, Ni sources, Cu sources, the Mo sources that take, after being well mixed, with nitrogen
Or argon gas prepares high-entropy alloy powder as atomizing medium under 2~2.5atm pressure；The particle diameter of the high-entropy alloy powder is
45~75um.
8. a kind of high-entropy alloy according to right wants 6 holds the preparation method of the composite of abrasive grain, its feature exists
In：In step 2, Ball-milling Time is 5~20h, and rotational speed of ball-mill is 100~300r/min, ratio of grinding media to material 5：1~15：1；Institute after ball milling
The average grain diameter for obtaining the high-entropy alloy powder after mechanical alloying-activation process is 10-20 microns.
9. a kind of high-entropy alloy according to right wants 6 holds the preparation method of the composite of abrasive grain, its feature exists
In：The bending strength that prepared high-entropy alloy holds the composite of abrasive grain is 1300~1400MPa, hardness HV500
~630, consistency is 97~99%.
10. a kind of high-entropy alloy as described in claim 1-5 any one holds the application of the composite of abrasive grain, it is special
Sign is：Composite including the high-entropy alloy to be held to abrasive grain is used as cutter head.
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Effective date of registration: 20210709 Address after: 337000 Industrial Park B, Lianhua County, Pingxiang City, Jiangxi Province Patentee after: Jiangxi Yongtai Powder Metallurgy Co.,Ltd. Address before: Yuelu District City, Hunan province 410083 Changsha Lushan Road No. 932 Patentee before: CENTRAL SOUTH University |