CN107952966A - The preparation method at spherical titanium aluminium-based alloyed powder end - Google Patents
The preparation method at spherical titanium aluminium-based alloyed powder end Download PDFInfo
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- CN107952966A CN107952966A CN201711190224.3A CN201711190224A CN107952966A CN 107952966 A CN107952966 A CN 107952966A CN 201711190224 A CN201711190224 A CN 201711190224A CN 107952966 A CN107952966 A CN 107952966A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/023—Hydrogen absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
Abstract
The invention belongs to powder metallurgical technology, and in particular to a kind of preparation method at spherical titanium aluminium-based alloyed powder end.The spherical titanium aluminium-based alloyed powder end sphericity prepared for existing method is low, granularity is uneven, the problems such as oxygen content is high, the present invention provides a kind of preparation method at spherical titanium aluminium-based alloyed powder end, titanium aluminium base alloy ingot casting is first prepared using process for vacuum induction smelting, through the processing that strips off the skin, impurity element is reduced and improves overall homogeneity of ingredients, and homogenization heat treatment is carried out, obtain the uniform ingot casting of alloying component.Then hydrogenation treatment, broken, acquisition suction hydrogen titanium aluminium base alloy powder are carried out to ingot casting.Spherical titanium aluminium-based alloyed powder prepared by present invention end, possesses that component is uniform, particle diameter is tiny, good fluidity, Oxygen potential are high, oxygen content is low, suitable for technical fields such as laser beam/electron beam 3D printing, cladding forming, injection moulding and thermal sprayings.
Description
Technical field
The invention belongs to powder metallurgical technology, and in particular to a kind of preparation method at spherical titanium aluminium-based alloyed powder end.
Background technology
Titanium alloy obtains in the field such as space flight and aviation and automobile because its is light, specific strength is high, high temperature creep property is excellent
More and more applications, be used to manufacture engine, compressor blade and diskware etc..But titanium alloy deformation coefficient is small, cutting
Temperature is high, chill phenomenon is serious, machining property is poor, hinders its popularization.There is researcher using TC4 titanium alloys as former material
Material, produces aerospace part, but TC4 materials Properties of High Temperature Creep and heat endurance are poor, maximum operating temperature 550
DEG C, it is impossible to meet the engine requirement of resistance to higher temperature.
To obtain the engine of higher thrust-weight ratio, TiAl alloy has density as a kind of emerging alloy structure material
It is lower, the features such as specific strength higher；Certain strength and stiffness can be still kept in higher temperatures, but also are resisted with good
Creep and oxidation resistance, thus TiAl alloy material is space flight, aviation and the great competition of engine for automobile heat resistant structure part
One of material of power.
Although TiAl alloy has many advantages, and technically achieves many important breakthroughs, but still has many performance sides
The problem of face, needs to solve, for example TiAl alloy is strong with relatively low high temperature for 1000 DEG C of high-temperature components used above
Degree, tensile strength, plasticity and fracture/creep resistance have inverse relationship etc., thus also need to further research and development with more excellent
The TiAl alloy of performance, to meet growing performance requirement.
In order to adapt to the demand of laser beam or electron beam 3D printing technique, it is necessary to prepare the low ball of good fluidity, oxygen content
Shape titanium aluminium base alloy, yet there are no prepare the low spherical titanium aluminium-based alloyed method of good fluidity, oxygen content in the prior art.
The content of the invention
The technical problem to be solved in the present invention is：Spherical titanium aluminium-based alloyed powder end sphericity prepared by existing method is low, grain
The problems such as degree is uneven, and oxygen content is high.
The present invention solve technical problem technical solution be：A kind of preparation method at spherical titanium aluminium-based alloyed powder end is provided.
This method comprises the following steps：
A, vacuum induction melting
High-purity titanium valve, high purity aluminum powder, intermediate alloy material, reinforcing material is taken to be uniformly mixed, using water jacketed copper crucible vacuum
Induction melting furnace carries out melting, and 1~10min of melting is obtained under 300~600 DEG C of smelting temperature, 100~250kW of monitor system
Melt, cooling, obtains titanium aluminium base alloy ingot casting, ingot casting surface carries out the processing that strips off the skin；
B, homogenizing annealing is handled
The titanium aluminium base alloy ingot casting that step a is obtained is placed in Zhen Kong Du≤1.0 × 10-2Carried out in the vacuum heat treatment furnace of Pa
Homogenizing annealing processing, homogenizing annealing treatment temperature are 600~1300 DEG C, and soaking time is 1~8h, and it is equal to obtain alloying component
Even titanium aluminium base alloy ingot casting；
C, hydrogenation treatment
Titanium aluminium base alloy ingot casting is broken into the fritter ingot casting of 5~45mm by the method for mechanical crushing, is placed in stainless
In steel pressurized tank, pressurized tank is evacuated down to 1.0 × 10-3Pa, it is 0.1~2.5MPa to be passed through high-purity hydrogen to pressure pressure tank,
1~8h is kept the temperature at 600~1300 DEG C, obtains the suction hydrogen titanium aluminium base alloy powder that particle diameter is 20~350 μm, screening, obtains particle diameter
Fine grained less than 200 μm inhales hydrogen titanium aluminium base alloy powder；
D, plasma spheroidization
Fine grained is inhaled into hydrogen titanium aluminium base alloy powder and carries out plasma spheroidization processing, obtains superfine spherical titanium aluminium-based alloyed powder
End.
Wherein, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, the high purity titanium powder fraction described in step a
It is 3~55% for 40~85%, high purity aluminum powder volume fraction, the volume fraction of intermediate alloy material is 0.2~32%, strengthening material
It is 0.1~25% to expect volume fraction.
Wherein, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, the intermediate alloy material described in step a is
TiMo intermediate alloys, TiMn intermediate alloys, TiSn intermediate alloys, AlV intermediate alloys, TiNb intermediate alloys, TiCr intermediate alloys,
TiW intermediate alloys, sponge Zr, pure vanadium block or pure iron at least one in the block.
Wherein, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, reinforcing material described in step a is graphite,
At least one of graphene, carbon nanotubes, carbon fiber, silicon, carborundum, boron or boron carbide.
Wherein, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, the plasma spheroidization processing ginseng described in step d
Number is：Powder feeding rate is 10~250g/min, and plasma output power is 30~250KW, and working vacuum degree is 1.0 × 10-3Pa。
Further, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, the processing of step d plasma spheroidizations is completed
Afterwards, then sieved, obtain less than 200 μm of superfine spherical titanium aluminium-based alloyed powder end.
Beneficial effects of the present invention are：The present invention provides a kind of preparation method at spherical titanium aluminium-based alloyed powder end, prepares
Spherical titanium aluminium-based alloyed powder end have that component is uniform, sphericity high (being not less than 80%), (particle diameter is 15~53 μ to epigranular
M, 0~45 μm, multiple scopes such as 50~105 μm), oxygen content relatively low (oxygen content be not higher than 0.1%) the advantages of.The powder is used as
During the material powder of increasing material manufacturing, sphericity height is conducive to improve the mobility of powder particle, reduces print defect；The powder is used
When making the material powder of injection moulding, fine grain spherical powder improves while powder flowbility and tap density is improved
Powder loading, plays an important role the filling capacity and control sintering warpage for improving feeding.During as hot spray powder,
The mobility of powder can be effectively improved, improves the bulk density of powder in coating, there is significant economic benefit.
Embodiment
The present invention provides a kind of preparation method at spherical titanium aluminium-based alloyed powder end, comprise the following steps：
A, vacuum induction melting
High-purity titanium valve, high purity aluminum powder, intermediate alloy material, reinforcing material is taken to be uniformly mixed, using water jacketed copper crucible vacuum
Induction melting furnace carries out melting, and 1~10min of melting is obtained under 300~600 DEG C of smelting temperature, 100~250kW of monitor system
Melt, cooling, obtains titanium aluminium base alloy ingot casting, ingot casting surface carries out the processing that strips off the skin；
B, homogenizing annealing is handled
The titanium aluminium base alloy ingot casting that step a is obtained is placed in Zhen Kong Du≤1.0 × 10-2Carried out in the vacuum heat treatment furnace of Pa
Homogenizing annealing processing, homogenizing annealing treatment temperature are 600~1300 DEG C, and soaking time is 1~8h, and it is equal to obtain alloying component
Even titanium aluminium base alloy ingot casting；
C, hydrogenation treatment
Titanium aluminium base alloy ingot casting is broken into the fritter ingot casting of 5~45mm by the method for mechanical crushing, is placed in stainless
In steel pressurized tank, pressurized tank is evacuated down to 1.0 × 10-3Pa, it is 0.1~2.5MPa to be passed through high-purity hydrogen to pressure pressure tank,
1~8h is kept the temperature at 600~1300 DEG C, obtains the suction hydrogen titanium aluminium base alloy powder that particle diameter is 20~350 μm, screening, obtains particle diameter
Fine grained less than 200 μm inhales hydrogen titanium aluminium base alloy powder；
D, plasma spheroidization
Fine grained is inhaled into hydrogen titanium aluminium base alloy powder and carries out plasma spheroidization processing, obtains superfine spherical titanium aluminium-based alloyed powder
End.
Wherein, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, the high purity titanium powder fraction described in step a
It is 3~55% for 40~85%, high purity aluminum powder volume fraction, the volume fraction of intermediate alloy material is 0.2~32%, strengthening material
It is 0.1~25% to expect volume fraction.
Wherein, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, the intermediate alloy material described in step a is
TiMo intermediate alloys, TiMn intermediate alloys, TiSn intermediate alloys, AlV intermediate alloys, TiNb intermediate alloys, TiCr intermediate alloys,
TiW intermediate alloys, sponge Zr, pure vanadium block or pure iron at least one in the block.
Wherein, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, reinforcing material described in step a is graphite,
At least one of graphene, carbon nanotubes, carbon fiber, silicon, carborundum, boron or boron carbide.
Step c of the present invention sieves to obtain fine grained of the particle diameter less than 200 μm, and to inhale hydrogen titanium aluminium-based alloyed powder last, can be according to reality
Border needs, and the sieve aperture of reselection different-grain diameter is sieved again, such as 15~53 μm, 0~45 μm, the particle diameters such as 50~105 μm
Sieve aperture, is closed so that the fine grained for obtaining 15~53 μm, 0~45 μm, 50~105 μm etc. multiple and different particle diameters of particle diameter inhales hydrogen titanium aluminium base
Bronze end.
Wherein, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, the plasma spheroidization processing ginseng described in step d
Number is：Powder feeding rate is 10~250g/min, and plasma output power is 30~250KW, and working vacuum degree is 1.0 × 10-3Pa。
Further, in the preparation method at above-mentioned spherical titanium aluminium-based alloyed powder end, the processing of step d plasma spheroidizations is completed
Afterwards, then sieved, obtain less than 200 μm of superfine spherical titanium aluminium-based alloyed powder end.
The present invention is combined using process for vacuum induction smelting, hydrogenation treatment technique and plasma spheroidization technology, prepares ball
Shape titanium aluminium base alloy powder.The problem of reducing in ball mill crushing technique impurity pollution and Powder Oxidation, be conducive to oxygen content
Control.Melting is carried out using water jacketed copper crucible vacuum induction melting furnace, fusion process is high vacuum atmosphere, during reduction nodularization
The oxidation of titanium aluminium base alloy powder, is conducive to control oxygen content.The processing that strips off the skin is carried out to ingot casting, can effectively reduce impurity element dirt
Dye and the overall homogeneity of ingredients of raising.The titanium aluminium base alloy powder finally prepared is with component is uniform, sphericity is high, granularity is equal
Even, the features such as oxygen content is low, suitable for selective laser sintering, the increasing material manufacturing of powder bed electron beam melting, cladding forming, injection moulding
And technical field of hot.
The present invention prepares titanium aluminium base alloy ingot casting using process for vacuum induction smelting first, through the processing that strips off the skin, reduces miscellaneous
Prime element and the overall homogeneity of ingredients of raising, and homogenization heat treatment is carried out, obtain the uniform ingot casting of alloying component.Then to casting
Ingot carries out hydrogenation treatment, broken, acquisition suction hydrogen titanium aluminium base alloy powder.Finally inhale hydrogen titanium aluminium base alloy powder after screening into
The processing of row plasma spheroidization, optimizes output power, powder feeding rate and airflow rate during nodularization, improves fine powder recovery rate.
So as to obtain the spherical powder that component is uniform, sphericity is high, epigranular, oxygen content are low.
Explanation is further explained to the embodiment of the present invention below in conjunction with embodiment, but is not indicated that this
The protection domain of invention is limited in described in embodiment in scope.
Embodiment 1 prepares spherical titanium aluminium-based alloyed powder end with the method for the present invention
Prepared sizes scope is 0~45 μm of spherical Ti-47Al-2Nb-2Mn-1.6B powder, according to titanium aluminium base alloy
Component weighs the following raw material：Pure titanium, TiNb intermediate alloys, TiMn intermediate alloys, fine aluminium, boron powder.Ti, Al in titanium aluminium base alloy,
Nb, Mn and the volumn concentration of B element are 47.4% Ti, 47% Al, 2% Nb, 2% Mn, 1.6% B.Using
Water jacketed copper crucible vacuum induction melting furnace carries out melting, and metal mold is preheating to 350 DEG C before melting, monitor system is increased to
Stop increase power after 175kW, then melting 1.5min obtains melt under firm power, and titanium aluminium base alloy casting is obtained after cooling
Ingot；Ingot casting surface is subjected to the processing that strips off the skin；Titanium aluminium base alloy ingot casting is placed in Zhen Kong Du≤1.0 × 10-2The vacuum heat of Pa
Homogenizing annealing processing is carried out in stove, homogenizing annealing treatment temperature is 820 DEG C, when soaking time is 5 small, obtains alloying component
Uniform titanium aluminium base alloy ingot casting；Titanium aluminium base alloy ingot casting is broken into the small block casting of 20~35mm by the method for mechanical crushing
Ingot, is placed in stainless steel pressure tank, and pressurized tank is evacuated down to 1.0 × 10-3Pa, then passes to high-purity hydrogen to pressurized tank and reaches
To 0.5MPa, when 750 DEG C of insulations 4 are small, the suction hydrogen titanium aluminium base alloy powder that particle diameter is less than 160 μm is obtained, powder is sieved
Point, obtain fine grained of the particle diameter less than 70 μm and inhale hydrogen titanium aluminium base alloy powder.
Fine grained is inhaled into hydrogen titanium aluminium base alloy powder and carries out plasma spheroidization, hydrogen titanium aluminium base is inhaled during plasma spheroidization and closes
The quick-fried broken generation superfine spherical titanium aluminium-based alloyed powder end of the rapid heat absorption hydrogen in bronze end.Wherein powder feeding rate is 85g/min, and plasma is defeated
It is 95KW to go out power, and working vacuum degree is 1.0 × 10-3Pa, finally obtain component is uniform, sphericity is high, particle size range be 0~45
μm the spherical Ti-47Al-2Nb-2Mn-1.6B alloy powders of hypoxemia.
Embodiment 2 prepares spherical titanium aluminium-based alloyed powder end with the method for the present invention
Prepared sizes scope is 15~53 μm of spherical Ti-3.5Al-8Mo-6V-3Cr-2Sn-0.5Fe powder, according to titanium
The component of acieral weighs the following raw material：In pure titanium, TiMo intermediate alloys, TiCr intermediate alloys, TiSn intermediate alloys, AlV
Between alloy, pure vanadium, pure iron.The volumn concentration of Ti, Al, Mo, V, Cr, Sn and Fe element is 77% in titanium aluminium base alloy
Ti, 3.5% Al, 8% Mo, 6% V, 3% Cr, the Fe of 2% Sn and 0.5%.Using water jacketed copper crucible vacuum induction
Smelting furnace carries out melting, and metal mold is preheating to 400 DEG C before melting, and monitor system is increased to after 195kW and stops increase work(
Rate, then melting 1min obtains melt under firm power, and titanium aluminium base alloy ingot casting is obtained after cooling；Ingot casting surface is taken off
Secondary remelting obtains ingot casting again after skin processing；Titanium aluminium base alloy ingot casting is in Zhen Kong Du≤1.0 × 10-2In the vacuum heat treatment furnace of Pa
Homogenizing annealing processing is carried out, homogenizing annealing treatment temperature is 780 DEG C, and when soaking time is 4.5 small, it is equal to obtain alloying component
Even titanium aluminium base alloy ingot casting；Titanium aluminium base alloy ingot casting is broken into the small block casting of 20~40mm by the method for mechanical crushing
Ingot, is placed in stainless steel pressure tank, and pressurized tank is evacuated down to 1.0 × 10-3Pa, then passes to high-purity hydrogen to pressurized tank and reaches
To 0.1MPa, when 650 DEG C of insulations 3 are small, the suction hydrogen titanium aluminium base alloy powder that particle diameter is less than 200 μm is obtained, powder is sieved
Point, obtain fine grained of the particle diameter less than 90 μm and inhale hydrogen titanium aluminium base alloy powder.
Fine grained is inhaled into hydrogen titanium aluminium base alloy powder and carries out plasma spheroidization, hydrogen titanium aluminium base is inhaled during plasma spheroidization and closes
The quick-fried broken generation superfine spherical titanium aluminium-based alloyed powder end of the rapid heat absorption hydrogen in bronze end.Wherein powder feeding rate is 90g/min, and plasma is defeated
It is 90KW to go out power, and working vacuum degree is 1.0 × 10-3Pa, finally obtain component is uniform, sphericity is high, particle size range for 15~
53 μm of the spherical Ti-3.5Al-8Mo-6V-3Cr-2Sn-0.5Fe alloy powders of hypoxemia.
Embodiment 3 prepares spherical titanium aluminium-based alloyed powder end with the method for the present invention
Prepared sizes scope is 50~105 μm of spherical Ti-45Al-5Nb-0.2B-0.2C powder, according to titanium aluminium base alloy
Component weigh the following raw material：Pure titanium, TiNb intermediate alloys, fine aluminium, boron carbide powder.Ti, Al, Nb, B and C in titanium aluminium base alloy
The volumn concentration of element is 49.6% Ti, 45% Al, 5% Nb, 0.2% B, 0.2% C.Using water-cooled copper
Crucible vacuum induction melting furnace carries out melting, and metal mold is preheating to 500 DEG C before melting, monitor system is increased to 210kW
Stop increase power afterwards, then melting 1min obtains melt under firm power, and titanium aluminium base alloy ingot casting is obtained after cooling；Will casting
Ingot surface carries out the processing that strips off the skin；Titanium aluminium base alloy ingot casting is placed in Zhen Kong Du≤1.0 × 10-2Carried out in the vacuum heat treatment furnace of Pa
Homogenizing annealing processing, homogenizing annealing treatment temperature are 800 DEG C, and when soaking time is 4.5 small, it is uniform to obtain alloying component
Titanium aluminium base alloy ingot casting；Titanium aluminium base alloy ingot casting is broken into the fritter ingot casting of 20~40mm by the method for mechanical crushing, and
It is placed in stainless steel pressure tank, pressurized tank is evacuated down to 1.0 × 10-3Pa, then passes to high-purity hydrogen to pressurized tank and reaches
0.3MPa, when 780 DEG C of insulations 5 are small, obtain the suction hydrogen titanium aluminium base alloy powder that particle diameter is less than 210 μm, powder is sieved,
Obtain fine grained of the particle diameter less than 150 μm and inhale hydrogen titanium aluminium base alloy powder.
Fine grained is inhaled into hydrogen titanium aluminium base alloy powder and carries out plasma spheroidization, hydrogen titanium aluminium base is inhaled during plasma spheroidization and closes
The quick-fried broken generation superfine spherical titanium aluminium-based alloyed powder end of the rapid heat absorption hydrogen in bronze end.Wherein powder feeding rate is 80g/min, and plasma is defeated
It is 100KW to go out power, and working vacuum degree is 1.0 × 10-3Pa, finally obtain component is uniform, sphericity is high, particle size range for 50~
105 μm of the spherical Ti-45Al-5Nb-0.2B-0.2C alloy powders of hypoxemia.
Claims (5)
1. the preparation method at spherical titanium aluminium-based alloyed powder end, it is characterised in that comprise the following steps：
A, vacuum induction melting
High-purity titanium valve, high purity aluminum powder, intermediate alloy material, reinforcing material is taken to be uniformly mixed, using water jacketed copper crucible vacuum induction
Smelting furnace carries out melting, and 1~10min of melting obtains melt under 300~600 DEG C of smelting temperature, 100~250kW of monitor system,
Cooling, obtains titanium aluminium base alloy ingot casting, ingot casting surface carries out the processing that strips off the skin；
B, homogenizing annealing is handled
The titanium aluminium base alloy ingot casting that step a is obtained is placed in Zhen Kong Du≤1.0 × 10-2Carried out in the vacuum heat treatment furnace of Pa uniform
Annealing processing, homogenizing annealing treatment temperature are 600~1300 DEG C, and soaking time is 1~8h, and it is uniform to obtain alloying component
Titanium aluminium base alloy ingot casting；
C, hydrogenation treatment
Titanium aluminium base alloy ingot casting is broken into the fritter ingot casting of 5~45mm by the method for mechanical crushing, is placed in stainless steel pressure
In power tank, pressurized tank is evacuated down to 1.0 × 10-3Pa, it is 0.1~2.5MPa to be passed through high-purity hydrogen to pressure pressure tank, 600
~1300 DEG C of 1~8h of insulation, obtain the suction hydrogen titanium aluminium base alloy powder that particle diameter is 20~350 μm, screening, obtains particle diameter and be less than
200 μm of fine grained inhales hydrogen titanium aluminium base alloy powder；
D, plasma spheroidization
Fine grained is inhaled into hydrogen titanium aluminium base alloy powder and carries out plasma spheroidization processing, obtains superfine spherical titanium aluminium-based alloyed powder end.
2. the preparation method at spherical titanium aluminium-based alloyed powder end according to claim 1, it is characterised in that：Described in step a
High purity titanium powder fraction be 40~85%, high purity aluminum powder volume fraction be 3~55%, the volume fraction of intermediate alloy material
For 0.2~32%, reinforcing material volume fraction is 0.1~25%.
3. the preparation method at spherical titanium aluminium-based alloyed powder end according to claim 1, it is characterised in that：Described in step a
Intermediate alloy material be TiMo intermediate alloys, TiMn intermediate alloys, TiSn intermediate alloys, AlV intermediate alloys, close among TiNb
Gold, TiCr intermediate alloys, TiW intermediate alloys, sponge Zr, pure vanadium block or pure iron at least one in the block.
4. the preparation method at spherical titanium aluminium-based alloyed powder end according to claim 1, it is characterised in that：Described in step a
Reinforcing material at least one of for graphite, graphene, carbon nanotubes, carbon fiber, silicon, carborundum, boron or boron carbide.
5. the preparation method at spherical titanium aluminium-based alloyed powder end according to claim 1, it is characterised in that：Described in step d
Plasma spheroidization processing parameter be：Powder feeding rate is 10~250g/min, and plasma output power is 30~250KW, work
Vacuum is 1.0 × 10-3Pa。
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| CN109727745A (en) * | 2018-12-17 | 2019-05-07 | 北京康普锡威科技有限公司 | Iron-based soft magnetic composite material and preparation method |
| CN114082967A (en) * | 2020-08-06 | 2022-02-25 | 北京理工大学 | Preparation method of aluminum-titanium-based multi-component alloy powder and obtained alloy powder |
| CN114101663A (en) * | 2022-01-27 | 2022-03-01 | 西部宝德科技股份有限公司 | Spherical nickel powder and preparation method and application thereof |
| CN114959325A (en) * | 2022-06-08 | 2022-08-30 | 攀钢集团钒钛资源股份有限公司 | Preparation method of vanadium-aluminum alloy |
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