CN106916984A - A kind of inertia multilevel hierarchy tungsten aluminium composite material and preparation method thereof - Google Patents
A kind of inertia multilevel hierarchy tungsten aluminium composite material and preparation method thereof Download PDFInfo
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- B22F3/14—Both compacting and sintering simultaneously
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
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Abstract
The present invention provides a kind of inertia multilevel hierarchy tungsten aluminium composite material and preparation method thereof, and the inertia multilevel hierarchy tungsten aluminium composite material includes multilevel hierarchy tungsten aluminium composite material and fine and close smooth tungsten aluminum metallization compound protective layer WAl12Or Wal5, specific preparation method is：Ball milling is carried out after tungsten powder and aluminium powder are mixed, the tungsten particle cluster composite powder of aluminium cladding is obtained；The tungsten particle cluster composite powder that aluminium is coated is mixed with aluminium powder, in aluminum jacket, jolt ramming, vacuum heating degasification is simultaneously sealed, HIP sintering, remove surface aluminum jacket, obtain multilevel hierarchy tungsten aluminium composite material；Multilevel hierarchy tungsten aluminium composite material is placed in high-frequency induction furnace, inert gas is vacuumized or be passed through, sensing heating is carried out, its surface is formed protective layer, obtain inertia multilevel hierarchy tungsten aluminium composite material.Inertia multilevel hierarchy tungsten aluminium composite material high-strength light prepared by the present invention, inertia protective layer, corrosion resistance and good corrosion resistance are contained in surface.
Description
Technical field
The invention belongs to tungsten aluminium composite material technical field, and in particular to a kind of inertia multilevel hierarchy tungsten aluminium composite material and
Its preparation method.
Background technology
Metal-base composites is with metal and alloy as matrix, with metal or non-metal wire, fiber, whisker or ceramics
Graininess is combined as strengthening the Inhomogeneous charge thing of phase, and metal-base composites has continuous and metallic matrix, with height than strong
The premium properties such as degree, high ratio modulus, preferable wearability, corrosivity and high temperature resistant.Aluminum matrix composite with abundance, easily
Processing, quickly grows.
Aluminum matrix composite mainly includes the composite and the enhanced composite of discontinuous particle of continuous lod,
Compared with aluminum matrix alloy, heat resistance is improved wherein particle enhanced aluminum-based composite material, with elastic modelling quantity higher and lower
Thermal coefficient of expansion, and abrasion resistance properties improve.
Tungsten aluminium composite material be one kind with aluminium or aluminium alloy etc. as matrix, with tungsten, boron carbide etc. be addition phase aluminium base
Composite.The preparation method of partinium sintered body disclosed in Chinese patent CN 1208488C, is less than 100nm's by particle diameter
Tungsten aluminium alloy powder in graphite grinding tool, is passed through electric current heating again, and sintering obtains the partinium of densification high, preparation method letter
It is single effective.The preparation method of aluminium base zirconium tungstate particle composite material, quick by filtrate disclosed in Chinese patent CN 100348762C
The wolframic acid zirconium powder of preheating is infiltrated through therewith in base particulate interspaces, the quick cooled and solidified of gold obtains complete fine and close, tungsten wire array volume integral
Number height, parent metal and tungsten wire array bond strength composite high.Tungsten has that fusing point is high, intensity is excellent under hot conditions
Good, thermal conductivity is good, thermal coefficient of expansion is small, absorb that ray ability is strong and the advantages of good corrosion resistance, but tungsten has again simultaneously
The shortcomings of processing difficulties and inoxidizability difference, tungsten is often being more scattered in aluminum matrix composite in the tungsten aluminium composite material for preparing at present
In, and the wearability and corrosion resistance of composite material surface are poor, limit the application field of tungsten aluminium composite material.Therefore have
The necessary combination property to tungsten aluminium composite material is further improved.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of inertia multilevel hierarchy tungsten aluminium composite material and preparation method thereof,
By tungsten powder and aluminium powder mixing and ball milling, then mix with aluminium powder, through jolt ramming in aluminum jacket, heating in vacuum, HIP sintering is removed
Surface aluminum jacket, obtains multilevel hierarchy tungsten aluminium composite material, then through high-frequency induction heating, obtains inertia multilevel hierarchy tungsten aluminium and answer
Condensation material.Inertia multilevel hierarchy tungsten aluminium composite material high-strength light prepared by the present invention, inertia protective layer is contained on surface, corrosion-resistant
Property and good corrosion resistance.
In order to solve the above technical problems, the technical scheme is that：
A kind of inertia multilevel hierarchy tungsten aluminium composite material, the inertia multilevel hierarchy tungsten aluminium composite material includes multilevel hierarchy
Tungsten aluminium composite material and inertia protective layer, the inertia protective layer are fine and close smooth tungsten aluminum metallization compound protective layer, it is described
Inertia protective layer is WAl12Or Wal5, the multilevel hierarchy tungsten aluminium composite material is multistage tungsten particle reinforced aluminum matrix composites.
The present invention also provides a kind of preparation method of inertia multilevel hierarchy tungsten aluminium composite material, comprises the following steps：
(1) ball milling is carried out after mixing tungsten powder and aluminium powder, the tungsten particle cluster composite powder of aluminium cladding is obtained；
(2) the tungsten particle cluster composite powder of the aluminium cladding for preparing step (1) mixes with aluminium powder, mounted in aluminum jacket
In, jolt ramming, vacuum heating degasification is simultaneously sealed, HIP sintering, removes surface aluminum jacket, is obtained multilevel hierarchy tungsten aluminium and is combined
Material；
(3) by step (2) prepare multilevel hierarchy tungsten aluminium composite material be placed in high-frequency induction furnace, vacuumize or
Inert gas is passed through, sensing heating is carried out, its surface is formed protective layer, obtain inertia multilevel hierarchy tungsten aluminium composite material.
Used as the preferred of above-mentioned technical proposal, in the step (1), tungsten powder purity is more than 99%, and particle diameter is 2-12 μm, aluminium
Powder purity is more than 99%, and particle diameter is 4-200 μm, and the mass percent of tungsten powder is in the tungsten particle cluster composite powder of aluminium cladding
40-80%, remaining is aluminium powder.
Used as the preferred of above-mentioned technical proposal, in the step (1), ball milling uses planetary ball mill, in vacuum or argon
Carried out under the conditions of gas shielded, abrading-ball is (3 with the weight ratio of powder:1)-(10:1), rotating speed 300-500r/min, Ball-milling Time is
4-40h。
As the preferred of above-mentioned technical proposal, in the step (2), the tungsten particle cluster composite powder and aluminium powder of aluminium cladding
Mass ratio be 12.5-70:87.5-30.
Used as the preferred of above-mentioned technical proposal, in the step (2), mixed method is：Using Double cone mixer, in argon gas
Carried out under conditions of protection, abrading-ball is (1 with the weight ratio of powder:1)-(3:1), incorporation time is 8-24h, vacuum heating degasification
Temperature be 400-450 DEG C, vacuum be less than 1 × 10-3Pa。
Used as the preferred of above-mentioned technical proposal, in the step (2), the condition of HIP sintering is：Heating rate is not
More than 10 DEG C/min, sintering temperature is 500-550 DEG C, and pressure is 100-200MPa, and soaking time is 2-4h.
As the preferred of above-mentioned technical proposal, in the step (2), the matter of tungsten particle in multilevel hierarchy tungsten aluminium composite material
Amount percentage composition is 5-56%.
Used as the preferred of above-mentioned technical proposal, in the step (3), the vacuum of high-frequency induction furnace is less than 0.1Pa,
The inert gas is argon gas or nitrogen.
Used as the preferred of above-mentioned technical proposal, in the step (3), the heating frequency of sensing heating is 10-100KHz, often
The time of secondary sensing heating is 2-5s, and the dead time is more than 10min, continues sensing heating next time, until heating-up temperature is
500-700℃。
Compared with prior art, the invention has the advantages that：
(1) inertia multilevel hierarchy tungsten aluminium composite material prepared by the present invention includes multilevel hierarchy tungsten aluminium composite material and inertia
Protective layer, multilevel hierarchy tungsten aluminium composite material is multistage tungsten particle reinforced aluminum matrix composites, the multistage tungsten particle enhancing aluminium base
Composite is prepared using the technique of high-energy ball milling, low energy mixing and high temperature insostatic pressing (HIP), and tungsten powder and aluminium powder become through high-energy ball milling
Shape, broken and reunion process, form the tungsten particle cluster composite powder of aluminium cladding, then mix through HIP sintering with aluminium powder
Make densifying materials, with aluminium as matrix, tungsten aluminium aggregate is enhancing phase, forms the cluster institutional framework of sub-micron and micron, group
Matrix material between cluster has larger deformed region, and tungsten strengthens phase Dispersed precipitate in improving conventional tungsten aluminium composite material
Phenomenon, makes multilevel hierarchy tungsten aluminium composite material have the advantages that consistency is high, intensity is high, plasticity good and temperature in use is high.
(2) inertia multilevel hierarchy tungsten aluminium composite material prepared by the present invention includes multilevel hierarchy tungsten aluminium composite material and inertia
Protective layer, inertia protective layer is fine and close smooth tungsten aluminum metallization compound protective layer WAl12Or Wal5, inertia protective layer is by table
Face heat treatment is that material surface forms partinium compound protective layer, and the protective layer consistency is good, in the absence of obvious hole
Hole or crackle, on the basis of other materials is not used, can improve the wear-resisting and decay resistance of tungsten aluminium composite material.
(3) preparation method of the present invention is simple, using two kinds of materials of tungsten aluminium, prepares lightweight, high-strength, wear-resisting and corrosion resistant
Tungsten aluminium composite material, compared with traditional tungsten aluminium composite material, excellent combination property, with wide market prospects.
Specific embodiment
Describe the present invention in detail below in conjunction with specific embodiment, herein illustrative examples of the invention and explanation
It is for explaining the present invention but not as a limitation of the invention.
Embodiment 1：
(1) 400g purity is more than 99%, particle diameter is more than 99% for 2-12 μm of tungsten powder and 200g purity, and particle diameter is 4-
After 200 μm of aluminium powder mixing, using planetary ball mill, stainless steel abrading-ball 3kg is carried out, rotating speed 400r/ under argon gas protective condition
Min, Ball-milling Time is 8h, obtains the tungsten particle cluster composite powder of aluminium cladding.
(2) the tungsten particle cluster composite powder for coating 750g aluminium uses Double cone mixer with 250g aluminium powders, is protected in argon gas
Carried out under conditions of shield, abrading-ball is 1 with the weight ratio of powder:1, incorporation time is 8h, and the temperature of vacuum heating degasification is 400
DEG C, vacuum is less than 1 × 10-3Heated up under the conditions of Pa, heating rate is 50 DEG C/h, in aluminum jacket, jolt ramming, degasification time
No less than 12h, then sealing is warming up to 520 DEG C by 10 DEG C/min of heating rate, is the high temperature insostatic pressing (HIP) bar of 200MPa in pressure
2h is incubated under part, the shaping that room temperature realizes composite is cooled to the furnace, surface aluminum jacket is removed using lathe, obtain multistage
Structure tungsten aluminium composite material.
(3) multilevel hierarchy tungsten aluminium composite material is placed in high-frequency induction furnace, is evacuated to vacuum and is less than
0.1Pa, or argon gas or nitrogen are passed through, sensing heating is carried out, the wherein heating frequency of sensing heating is 10KHz, sensing every time
The time of heating is 5s, and the dead time is more than 10min, continues sensing heating next time, 5 sensing heatings is carried out altogether, directly
It is 600 DEG C to heating-up temperature, its surface is formed protective layer, obtains inertia multilevel hierarchy tungsten aluminium composite material.
Embodiment 2：
(1) 480g purity is more than 99%, particle diameter is more than 99% for 2-12 μm of tungsten powder and 120g purity, and particle diameter is 4-
After 200 μm of aluminium powder mixing, using planetary ball mill, stainless steel abrading-ball 3kg is carried out, rotating speed 400r/ under argon gas protective condition
Min, Ball-milling Time is 8h, obtains the tungsten particle cluster composite powder of aluminium cladding.
(2) the tungsten particle cluster composite powder for coating 750g aluminium uses Double cone mixer with 250g aluminium powders, is protected in argon gas
Carried out under conditions of shield, abrading-ball is 1 with the weight ratio of powder:1, incorporation time is 8h, and the temperature of vacuum heating degasification is 400
DEG C, vacuum is less than 1 × 10-3Heated up under the conditions of Pa, heating rate is 50 DEG C/h, in aluminum jacket, jolt ramming, degasification time
No less than 12h, then sealing is warming up to 520 DEG C by 10 DEG C/min of heating rate, is the high temperature insostatic pressing (HIP) bar of 200MPa in pressure
2h is incubated under part, the shaping that room temperature realizes composite is cooled to the furnace, surface aluminum jacket is removed using lathe, obtain multistage
Structure tungsten aluminium composite material.
(3) multilevel hierarchy tungsten aluminium composite material is placed in high-frequency induction furnace, is evacuated to vacuum and is less than
0.1Pa, or argon gas or nitrogen are passed through, sensing heating is carried out, the wherein heating frequency of sensing heating is 100KHz, sensing every time
The time of heating is 5s, and the dead time is more than 10min, continues sensing heating next time, 5 sensing heatings is carried out altogether, directly
It is 700 DEG C to heating-up temperature, its surface is formed protective layer, obtains inertia multilevel hierarchy tungsten aluminium composite material.
Embodiment 3：
(1) 400g purity is more than 99%, particle diameter is more than 99% for 2-12 μm of tungsten powder and 200g purity, and particle diameter is 4-
After 200 μm of aluminium powder mixing, using planetary ball mill, stainless steel abrading-ball 3kg is carried out, rotating speed 400r/ under argon gas protective condition
Min, Ball-milling Time is 8h, obtains the tungsten particle cluster composite powder of aluminium cladding.
(2) the tungsten particle cluster composite powder for coating 700g aluminium uses Double cone mixer with 300g aluminium powders, is protected in argon gas
Carried out under conditions of shield, abrading-ball is 1 with the weight ratio of powder:1, incorporation time is 8h, and the temperature of vacuum heating degasification is 400
DEG C, vacuum is less than 1 × 10-3Heated up under the conditions of Pa, heating rate is 50 DEG C/h, in aluminum jacket, jolt ramming, degasification time
No less than 12h, then sealing is warming up to 550 DEG C by 10 DEG C/min of heating rate, is the high temperature insostatic pressing (HIP) bar of 200MPa in pressure
2h is incubated under part, the shaping that room temperature realizes composite is cooled to the furnace, surface aluminum jacket is removed using lathe, obtain multistage
Structure tungsten aluminium composite material.
(3) multilevel hierarchy tungsten aluminium composite material is placed in high-frequency induction furnace, is evacuated to vacuum and is less than
0.1Pa, or argon gas or nitrogen are passed through, sensing heating is carried out, the wherein heating frequency of sensing heating is 50KHz, sensing every time
The time of heating is 5s, and the dead time is more than 10min, continues sensing heating next time, 5 sensing heatings is carried out altogether, directly
It is 600 DEG C to heating-up temperature, its surface is formed protective layer, obtains inertia multilevel hierarchy tungsten aluminium composite material.
Embodiment 4：
(1) 480g purity is more than 99%, particle diameter is more than 99% for 2-12 μm of tungsten powder and 120g purity, and particle diameter is 4-
After 200 μm of aluminium powder mixing, using planetary ball mill, stainless steel abrading-ball 3kg is carried out, rotating speed 400r/ under argon gas protective condition
Min, Ball-milling Time is 8h, obtains the tungsten particle cluster composite powder of aluminium cladding.
(2) the tungsten particle cluster composite powder for coating 750g aluminium uses Double cone mixer with 250g aluminium powders, is protected in argon gas
Carried out under conditions of shield, abrading-ball is 1 with the weight ratio of powder:1, incorporation time is 8h, and the temperature of vacuum heating degasification is 400
DEG C, vacuum is less than 1 × 10-3Heated up under the conditions of Pa, heating rate is 50 DEG C/h, in aluminum jacket, jolt ramming, degasification time
No less than 12h, then sealing is warming up to 520 DEG C by 10 DEG C/min of heating rate, is the high temperature insostatic pressing (HIP) bar of 200MPa in pressure
2h is incubated under part, the shaping that room temperature realizes composite is cooled to the furnace, surface aluminum jacket is removed using lathe, obtain multistage
Structure tungsten aluminium composite material.
(3) multilevel hierarchy tungsten aluminium composite material is placed in high-frequency induction furnace, is evacuated to vacuum and is less than
0.1Pa, or argon gas or nitrogen are passed through, sensing heating is carried out, the wherein heating frequency of sensing heating is 10KHz, sensing every time
The time of heating is 2s, and the dead time is more than 10min, continues sensing heating next time, 10 sensing heatings is carried out altogether, directly
It is 600 DEG C to heating-up temperature, its surface is formed protective layer, obtains inertia multilevel hierarchy tungsten aluminium composite material.
Embodiment 5：
(1) 450g purity is more than 99%, particle diameter is more than 99% for 2-12 μm of tungsten powder and 250g purity, and particle diameter is 4-
After 200 μm of aluminium powder mixing, using planetary ball mill, stainless steel abrading-ball 3kg is carried out, rotating speed 300r/ under argon gas protective condition
Min, Ball-milling Time is 40h, obtains the tungsten particle cluster composite powder of aluminium cladding.
(2) the tungsten particle cluster composite powder for coating 750g aluminium uses Double cone mixer with 250g aluminium powders, is protected in argon gas
Carried out under conditions of shield, abrading-ball is 1 with the weight ratio of powder:1, incorporation time is 8h, and the temperature of vacuum heating degasification is 450
DEG C, vacuum is less than 1 × 10-3Heated up under the conditions of Pa, heating rate is 50 DEG C/h, in aluminum jacket, jolt ramming, degasification time
No less than 12h, then sealing is warming up to 500 DEG C by 10 DEG C/min of heating rate, is the high temperature insostatic pressing (HIP) bar of 100MPa in pressure
4h is incubated under part, the shaping that room temperature realizes composite is cooled to the furnace, surface aluminum jacket is removed using lathe, obtain multistage
Structure tungsten aluminium composite material.
(3) multilevel hierarchy tungsten aluminium composite material is placed in high-frequency induction furnace, is evacuated to vacuum and is less than
0.1Pa, or argon gas or nitrogen are passed through, sensing heating is carried out, the wherein heating frequency of sensing heating is 10KHz, sensing every time
The time of heating is 5s, and the dead time is more than 10min, continues sensing heating next time, 5 sensing heatings is carried out altogether, directly
It is 500 DEG C to heating-up temperature, its surface is formed protective layer, obtains inertia multilevel hierarchy tungsten aluminium composite material.
Embodiment 6：
(1) 480g purity is more than 99%, particle diameter is more than 99% for 2-12 μm of tungsten powder and 120g purity, and particle diameter is 4-
After 200 μm of aluminium powder mixing, using planetary ball mill, stainless steel abrading-ball 3kg is carried out, rotating speed 500r/ under argon gas protective condition
Min, Ball-milling Time is 4h, obtains the tungsten particle cluster composite powder of aluminium cladding.
(2) the tungsten particle cluster composite powder for coating 750g aluminium uses Double cone mixer with 250g aluminium powders, is protected in argon gas
Carried out under conditions of shield, abrading-ball is 1 with the weight ratio of powder:1, incorporation time is 24h, and the temperature of vacuum heating degasification is 400
DEG C, vacuum is less than 1 × 10-3Heated up under the conditions of Pa, heating rate is 50 DEG C/h, in aluminum jacket, jolt ramming, degasification time
No less than 12h, then sealing is warming up to 520 DEG C by 10 DEG C/min of heating rate, is the high temperature insostatic pressing (HIP) bar of 200MPa in pressure
2h is incubated under part, the shaping that room temperature realizes composite is cooled to the furnace, surface aluminum jacket is removed using lathe, obtain multistage
Structure tungsten aluminium composite material.
(3) multilevel hierarchy tungsten aluminium composite material is placed in high-frequency induction furnace, is evacuated to vacuum and is less than
0.1Pa, or argon gas or nitrogen are passed through, sensing heating is carried out, the wherein heating frequency of sensing heating is 100KHz, sensing every time
The time of heating is 5s, and the dead time is more than 10min, continues sensing heating next time, 5 sensing heatings is carried out altogether, directly
It is 700 DEG C to heating-up temperature, its surface is formed protective layer, obtains inertia multilevel hierarchy tungsten aluminium composite material.
Inertia multilevel hierarchy tungsten aluminium composite material prepared by the present invention consistency is high, mechanical strength, and the inertia
Multilevel hierarchy tungsten aluminium composite material surface is without obvious hole and gap.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should be covered by claim of the invention.
Claims (10)
1. a kind of inertia multilevel hierarchy tungsten aluminium composite material, it is characterised in that：The inertia multilevel hierarchy tungsten aluminium composite material bag
Multilevel hierarchy tungsten aluminium composite material and inertia protective layer are included, the inertia protective layer is that fine and close smooth tungsten aluminum metallization compound is protected
Sheath, the inertia protective layer is WAl12Or Wal5, the multilevel hierarchy tungsten aluminium composite material is multistage tungsten particle enhancing aluminium base
Composite.
2. a kind of preparation method of inertia multilevel hierarchy tungsten aluminium composite material, it is characterised in that comprise the following steps：
(1) ball milling is carried out after mixing tungsten powder and aluminium powder, the tungsten particle cluster composite powder of aluminium cladding is obtained；
(2) the tungsten particle cluster composite powder of the aluminium cladding for preparing step (1) mixes with aluminium powder, in aluminum jacket, shakes
Real, vacuum heating degasification is simultaneously sealed, HIP sintering, removes surface aluminum jacket, obtains multilevel hierarchy tungsten aluminium composite material；
(3) multilevel hierarchy tungsten aluminium composite material prepared by step (2) is placed in high-frequency induction furnace, vacuumizes or be passed through
Inert gas, carries out sensing heating, its surface is formed protective layer, obtains inertia multilevel hierarchy tungsten aluminium composite material.
3. the preparation method of a kind of inertia multilevel hierarchy tungsten aluminium composite material according to claim 2, it is characterised in that：Institute
State in step (1), tungsten powder purity is more than 99%, and particle diameter is 2-12 μm, aluminium powder purity is more than 99%, and particle diameter is 4-200 μm, aluminium bag
The mass percent of tungsten powder is 40-80% in the tungsten particle cluster composite powder for covering, and remaining is aluminium powder.
4. the preparation method of a kind of inertia multilevel hierarchy tungsten aluminium composite material according to claim 2, it is characterised in that：Institute
State in step (1), ball milling uses planetary ball mill, carried out under vacuum or argon gas protective condition, the weight of abrading-ball and powder
Than being (3:1)-(10:1), rotating speed 300-500r/min, Ball-milling Time is 4-40h.
5. the preparation method of a kind of inertia multilevel hierarchy tungsten aluminium composite material according to claim 2, it is characterised in that：Institute
State in step (2), the tungsten particle cluster composite powder of aluminium cladding is 12.5-70 with the mass ratio of aluminium powder:87.5-30.
6. the preparation method of a kind of inertia multilevel hierarchy tungsten aluminium composite material according to claim 2, it is characterised in that：Institute
State in step (2), mixed method is：Using Double cone mixer, carried out under conditions of argon gas protection, the weight of abrading-ball and powder
Than being (1:1)-(3:1), incorporation time is 8-24h, and the temperature of vacuum heating degasification is 400-450 DEG C, vacuum less than 1 ×
10-3Pa。
7. the preparation method of a kind of inertia multilevel hierarchy tungsten aluminium composite material according to claim 2, it is characterised in that：Institute
State in step (2), the condition of HIP sintering is：Heating rate is not more than 10 DEG C/min, and sintering temperature is 500-550 DEG C,
Pressure is 100-200MPa, and soaking time is 2-4h.
8. the preparation method of a kind of inertia multilevel hierarchy tungsten aluminium composite material according to claim 2, it is characterised in that：Institute
State in step (2), the weight/mass percentage composition of tungsten particle is 5-56% in multilevel hierarchy tungsten aluminium composite material.
9. the preparation method of a kind of inertia multilevel hierarchy tungsten aluminium composite material according to claim 2, it is characterised in that：Institute
State in step (3), the vacuum of high-frequency induction furnace is less than 0.1Pa, and the inert gas is argon gas or nitrogen.
10. the preparation method of a kind of inertia multilevel hierarchy tungsten aluminium composite material according to claim 2, it is characterised in that：
In the step (3), the heating frequency of sensing heating is 10-100KHz, and the time of each sensing heating is 2-5s, dead time
More than 10min, continue sensing heating next time, until heating-up temperature is 500-700 DEG C.
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| CN109868381A (en) * | 2017-12-04 | 2019-06-11 | 北京有色金属研究总院 | A kind of preparation method of high-volume fractional tungsten particle reinforced aluminum matrix composites |
| CN112080676A (en) * | 2020-08-12 | 2020-12-15 | 西安理工大学 | Flaky powder micro-laminated W-based composite material and preparation method thereof |
| CN112453400A (en) * | 2020-12-25 | 2021-03-09 | 湖南工业大学 | Preparation method of high-strength and high-thermal-conductivity aluminum alloy/ceramic composite material |
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