CN107460376B - A kind of hybrid reinforced aluminum-matrix composite material and preparation method thereof - Google Patents
A kind of hybrid reinforced aluminum-matrix composite material and preparation method thereof Download PDFInfo
- Publication number
- CN107460376B CN107460376B CN201710636951.1A CN201710636951A CN107460376B CN 107460376 B CN107460376 B CN 107460376B CN 201710636951 A CN201710636951 A CN 201710636951A CN 107460376 B CN107460376 B CN 107460376B
- Authority
- CN
- China
- Prior art keywords
- nano
- particle
- aluminum
- composite material
- melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
- C22C32/0063—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
Abstract
The invention discloses a kind of nano particle hybrid reinforced aluminum matrix composites and preparation method thereof, belong to casting metal based composite material field.The matrix of material is aluminum or aluminum alloy, and reinforced phase is nano grade Sic particle and other nano particles.The present invention also provides the methods for preparing the above composite material, firstly, nano SiC powder, other one or more nano particles, micron order aluminum or aluminum alloy powder are mixed with out grade composite particles under vacuum or argon gas protection.Then; grade composite particles are pressed into prefabricated intermediate alloy block; it is then added in aluminum or aluminum alloy melt; by refining, degassing processing; it takes off removing dross and oxide is mingled with; and apply mechanical stirring and ultrasonic vibration, promote nano-ceramic particle evenly dispersed in metal bath, prepares nano-ceramic particle hybrid reinforced aluminum-matrix composite material.The present invention has given full play to the complementation and advantage of multiphase hybrid buildup, significantly improves the properties of metal-base composites.
Description
Technical field
The invention belongs to casting metal based composite material and its preparation fields, are related to a kind of additional nano particle hybrid enhancing
Aluminum matrix composite and preparation method thereof.
Background technique
Metal-base nanometer composite material (Metal Matrix Nanocomposites, MMNCs) has light weight, than strong
The excellent performances such as degree and specific stiffness are high, wearability is good, in industrial circles such as space flight, aviation, military affairs and automobiles by more next
More extensive concern.In general, micron-sized ceramic particle is mainly used to improve material hardness and wearability, but when enhancing
When granule content is higher, the toughness of material is reduced, this affects the application of metal-base composites to a certain extent.And Xiang Ji
A small amount of Nano-size Reinforced Particle is added in body metal, the intensity of material can not only be significantly improved, also can get higher toughness.Mesh
Before, this nano grain reinforced metal-base composites has caused people greatly to pay attention to, and becomes metal-base composites
Research hotspot in recent years.
There are mainly two types of the casting preparation methods of traditional aluminum matrix composite, first is that outer addition, i.e., by single enhancing particle
It is applied in matrix alloy melt；Second is that in-situ method, i.e., generate single enhancing in matrix alloy melt by reaction in-situ
Certain performance of matrix mutually is improved, or obtains the preferable material of comprehensive performance.
In fact, both of which haves the shortcomings that respective, for example: in-situ method reaction temperature is high, and reaction speed is fast, is not easy
Control, the ceramic particle size of synthesis is difficult to control within the scope of Nano grade, and in-situ method can only synthesize limited kinds
Ceramic particle；And the Major Difficulties of outer addition are that the wetability of nano-ceramic particle and metallic matrix is poor, nano-ceramic particle
It is difficult to be added in metal bath, secondly, nano-ceramic particle is easy to reunite in metallic matrix, leads to poor mechanical property,
To hinder the development of this method.
Literature search discovery, application No. is the Chinese patents of 200610041896.3 (Publication No. CN 100412216C)
Application describes a kind of high-temperature heat-resistance aluminium based composite material enhanced by miscellaneous granules and composite preparation process, is prepared for by reaction in-situ
The nanoscale Al of generation3Ti、TiB2The micron order SiC particulate hybrid reinforced aluminum-matrix composite material that particle and liquid stirring introduce, but
The shortcomings that technique is that reaction in-situ speed is difficult to control and the nano-scale particle sizes of synthesis are more difficult to control, the content of reinforced phase
It is limited, fail the reinforcing effect and synergistic effect that play enhancing particle very well, and clear up easily that SiC particulate is clear when reacting salt slag
Manage etc..
Application No. is the Chinese patent applications of 201210543760.8 (Publication No. CN 103866154B) to describe one kind
The Dispersed precipitate method of micro-nano granules reinforced phase in composite material, mainly by micro-ceramic particle and nano-scale particle phase
Mixing, and the mixed powder of reinforced phase and matrix is wrapped up in indentation melt with masking foil, prepares micro-nano granules reinforced phase
The metal-base composites of Dispersed precipitate.But in this method after masking foil fusing, particulates reinforcements can reunite shape toward floating, and gather
Collect surface layer, oxidation is serious；The amount for wrapping up mixed powder indentation melt by masking foil is limited, causes nature incorporation time longer.
Therefore can make at melt long-time at high temperature, particle and basal body interface aggravate, it can also extend the time that melt is contacted with air,
Oxidation reaction is serious, and it is more to will lead to melt field trash.
Application No. is a kind of TiB of the Introduction To Cn Patent of 201510345500.3 (Publication No. CN 104911416B)2
Particle and Mg2The preparation method of Si hybrid reinforced aluminum-matrix composite material, method are fabricated in situ, and it is all micro- for enhancing particle
Meter level, reinforcing effect are limited.
Currently, in-situ authigenic method hybrid reinforced aluminum-matrix composite material research it is more, and additional confusion enhancing research compared with
It is few.Moreover, there are great number of issues in existing method, it is difficult to be taken into account between preparation process and the final performance of material.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of hybrid reinforced aluminum-matrix composite materials
And preparation method thereof, it is intended that nanoscale is enhanced particle, the mixing of micron order aluminum or aluminum alloy powder, in conjunction with dry type high energy
Ball milling and ultrasonic wave added stirring technique, prepare hybrid reinforced aluminum-matrix composite material, and the present invention solves previous particle reinforced aluminium-based
Composite material is existing to enhance distribution of particles problem of non-uniform, and composite material strength and toughness are higher.
To achieve the above object, according to one aspect of the present invention, a kind of hybrid reinforced aluminum-matrix composite material, base are provided
Body is aluminium or aluminium alloy, and hybrid buildup is mutually nano SiC granule and other nano-ceramic particles, the choosing of other nano-ceramic particles
From Al2O3, TiC and B4C。
Further, the partial size of the nano SiC granule and other nano-ceramic particles be respectively 20nm~
100nm。
Further, the nano SiC granule accounts for the 1%~4% of entire hybrid reinforced aluminum-matrix composite material gross mass, institute
State other nano-ceramic particles account for entire hybrid reinforced aluminum-matrix composite material gross mass 1%~6%.
The characteristics of nano SiC granule of the invention and other nano particle hybrid reinforced aluminum matrix composites: matrix is aluminium
Or aluminium alloy, hybrid buildup are mutually nano grade Sic particle and other one or more nano-ceramic particles (including Al2O3、TiC、
And B4C etc.).In composite material of the invention, additional nano SiC granule and other nano particles can inhibit crystal grain long
Greatly, refining grain size；And additional enhancing particle is nanoscale, can not only significantly improve the intensity of material, also be can get
Higher toughness.
Other side according to the invention also provides and a kind of prepares hybrid reinforced aluminum-matrix composite material as described above
Method, which is characterized in that it includes the following steps:
S1: carrying out ingredient, mixing for nano SiC granule, other nano-ceramic particles and micron order aluminum or aluminum alloy powder,
Mixture is obtained,
S2: above-mentioned mixture high speed is mixed into the balling-up of powder cold welding, prepares grade composite particles, grade composite particles grain
Diameter is 1mm~3mm,
S3: being pressed into alloy block for grade composite particles, and the theoretical density of alloy block is greater than 85%,
S5: the alloy block suppressed to the composite particles that preheating is added in the melt of fine aluminium or aluminium alloy, preheating temperature are
300 DEG C~600 DEG C, composition metal melt is formed,
S8: being ultrasonically treated composition metal melt, realizes nano-ceramic particle in metal bath using ultrasonic vibration
In it is evenly dispersed,
S9: by uniformly mixed composition metal melt cast, hybrid reinforced aluminum-matrix composite material is formed.
It further, further include step S6 and step S7, wherein step S6 is followed by executed executing the step S5,
Step S7 is followed by executed executing the step S6,
S6: after the alloy block fusing of particle compacting to be composite, being down to 650 °C~700 DEG C for composition metal melt temperature,
Composition metal bath surface sprinkles coverture, while under the protection of argon gas, carries out mechanical stirring 5min~20min, stirring speed
Degree is 150r/min~500r/min, then, stands 10min~30min,
S7: after the completion of standing, taking off removing dross, and is passed through high-purity argon gas into composition metal melt and carries out refinery by de-gassing, essence
After refining, 5min~10min is stood.
Further, further include step S4, step S4: fine aluminium or Al alloy block are melted, be added and dry on melt surface layer
Dry coverture then heats temperature rising to 700 DEG C~800 DEG C, then takes off removing dross, be passed through into melt high-purity argon gas into
Then row refinery by de-gassing stands 5min~20min, dwell temperature is 660 DEG C~750 DEG C.
Further, in step S2, using high-energy ball milling mode, mixture high speed is mixed into the balling-up of powder cold welding, ball milling speed
For 400r/min~600r/min.
Further, in step S3, grade composite particles are pressed into diameter 40mm~80mm, high 30mm~50mm
Prealloy block, compacting pressure are 10MPa~30MPa.
Further, in step S8: ultrasonic treatment temperature is 650 DEG C~720 DEG C, and ultrasonic power is 500W/l~3000W/
L, ultrasonic time 1min~5min.
Further, in step S9, composition metal melt that will be uniformly mixed by die casting or extrusion casint manufacturing process
Nano particle hybrid reinforced aluminum matrix composites are made in castable.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
(1) present invention prepares nano SiC granule and other one or more nano particle hybrid enhancing aluminium using additional method
Based composites prepare grade composite particles using high-energy ball milling, improve the wetability of enhancing particle and matrix alloy,
And ultrasonic wave added mechanical stirring technique is combined, solve the existing enhancing distribution of particles of previous particle enhanced aluminum-based composite material not
Uniform problem.
(2) additional nano SiC, the mass fraction of other nano-ceramic particles and particle size are easily controllable, reinforced phase
Utilization rate is high；Nano SiC and other nano-ceramic particles generate confounding effect, and particle preferably, is evenly distributed in conjunction with matrix,
Thus it solves the problems, such as that additional single nano particle difficulty reaches better quality score, increasing can be improved according to the method for the present invention
The content of strong particle, significantly improves composite material properties.
(3) raw material sources of the method for the present invention are wide, at low cost, and the additional nano particle hybrid of technique preparation enhances aluminium
Based composites, since its hybrid buildup grain diameter is all nanoscale, not only the intensity of material can be significantly improved, and also can get
The composite material of higher toughness, the method for the present invention preparation can be widely applied to the fields such as aerospace, automobile.
(4) pass through the Al of the additional SiC for accounting for 2% Nano grade of gross mass and the Nano grade for accounting for gross mass 2%2O3Mix
The mechanical property of REINFORCED Al -7%Si alloy composite materials is as follows: tensile strength 310MPa, yield strength 220MPa, elongation
5.2%.This composite material has preferable elongation at break with high-tensile and while yield strength.
Detailed description of the invention
Fig. 1 is 2% nano SiC of mass fraction and 2% nanometer of Al of mass fraction in the embodiment of the present invention2O3Hybrid buildup Al-
The Electronic Speculum macrograph of Si alloy substrate composite material.
Fig. 2 is the technical process schematic diagram of preparation method of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
The present invention provides a kind of hybrid reinforced aluminum-matrix composite materials and preparation method thereof, propose a kind of new reinforcement
System, i.e., by nano SiC granule and other nano particle hybrid reinforced aluminum matrix composites.The enhancing system can improve single increasing
The limitation of strong body, plays the complementation and advantage of various reinforced phases, generates confounding effect.Single reinforcement is compared simultaneously,
The content that enhancing particle can be improved, significantly improves composite material properties.
It uses nano SiC granule for enhancing one of particle, and SiC has high intensity, high rigidity, high abrasion, anti-oxidant, high
Thermal conductivity, low thermal expansion rate and not by most of acid-base solutions corrode etc. excellent performances, nano SiC granule is used to prepare Al
Based composites are with a wide range of applications.But additional nano SiC granule problem is: being difficult to obtain of better quality score
Grain, it is limited to the reinforcing effect of matrix alloy.The application overcomes problem above.
The principle of the method for the present invention are as follows: nano grade Sic is enhanced into particle, the mixing of micron order aluminum or aluminum alloy powder, by dry
Formula high-energy ball milling prepares grade composite particles, and combines ultrasonic wave added stirring technique, can improve outer plus nano enhancing
Grain be difficult to be added metal bath and in solid phase matrix uneven distribution problem.In addition, hybrid buildup can improve single increasing
The limitation of strong body, can play the complementation and advantage of various reinforced phases, generate confounding effect, while comparing single enhancing
Body can be improved the content of enhancing particle, significantly improve composite material properties.Present invention seek to address that nano particle is difficult to
Melt and in the melt bad dispersibility, the problem of single reinforced phase reinforcing effect deficiency is added.
The characteristics of nano SiC granule of the invention and other nano particle hybrid reinforced aluminum matrix composites: matrix is aluminium
Or aluminium alloy, hybrid buildup are mutually nano grade Sic particle and other one or more nano-ceramic particles, nano-ceramic particle packet
Include Al2O3, TiC and B4C etc..In composite material of the invention, additional nano SiC granule and other nano particles can press down
Combinations grain length is big, refining grain size；And additional enhancing particle is nanoscale, can not only significantly improve the intensity of material,
It also can get higher toughness.
Fig. 1 is 2% nano SiC of mass fraction and 2% nanometer of Al of mass fraction in the embodiment of the present invention2O3Hybrid buildup Al-
The Electronic Speculum macrograph of Si alloy substrate composite material, as seen from the figure, enhancing even particulate dispersion is in the base.
Fig. 2 is the flow diagram of preparation method of the present invention, as seen from the figure, provided by the invention a kind of to prepare outer plus nano
The preparation method of grain-mixing strengthened aluminium-base composite material mainly includes the following steps:
Firstly, nano grade Sic powder, other nano particles, micron order aluminum or aluminum alloy powder are mixed by dry type high-energy ball milling
Grade composite particles are prepared in conjunction；
Then, using mold and pressure apparatus, grade composite particles are pressed into prefabricated intermediate alloy block；To intermediate alloy
Block, which is added in molten aluminum, to be melted, and ultrasonic wave added stirring technique is applied, and prepares the additional nano particle hybrid enhancing aluminium of function admirable
Based composites.
Specific step of preparation process is as follows:
(1) nano SiC, other nanometer scale ceramics enhancing particle and micron order aluminum or aluminum alloy powder are subjected to ingredient, mixing.
It is that (enhancing particle includes nano SiC to 2~10% ingredients and other are received by mass fraction shared by particle is enhanced in final composite material
Meter level ceramics enhance particle, and other than aluminium matrix, additional ingredient substantially enhances particle.), wherein the total matter of nano SiC Zhan
Amount score accounts for 1~4%, other nano particles account for the 1~6% of total mass fraction.Nano-size Reinforced Particle diameter be 20nm~
100nm, micron order aluminum or aluminum alloy powder diameter are 20 μm~100 μm.
(2) by dry type high energy ball mill, above-mentioned mixture high speed is mixed into the balling-up of powder cold welding, prepares grade compound
Grain；Wherein, ball milling speed is 400r/min~600r/min, and the grade composite particles partial size of formation is 1mm~3mm.
(3) mold and pressure apparatus are used, grade composite particles are pressed into diameter 40mm~80mm, high 30mm~50mm
Prefabricated intermediate alloy block.Compacting pressure is 10MPa~30MPa, and the theoretical density of alloy block is greater than 85%.
(4) fine aluminium or Al alloy block are added in crucible, melts matrix alloy, the commercially available of drying is added on melt surface layer
Coverture, temperature rise to 700~800 DEG C.Removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, it is then, quiet
5min~20min is set, dwell temperature is 660 DEG C~750 DEG C.
(5) after the completion of standing, under the protection of argon gas, the intermediate alloy of the composite particles compacting of preheating is added into melt
Block, preheating temperature are 300 DEG C~600 DEG C, and additional amount accounts for the nanometer of gross mass 2wt.~10wt.% mass fraction by generating
Grain reinforced phase is controlled.
(6) the intermediate alloy block fusing of particle compacting to be composite, temperature are down to 650~700 DEG C, sprinkle and cover in bath surface
Lid agent, while under the protection of argon gas, mechanical stirring 5min~20min is carried out, mixing speed is 150r/min~500r/min；
Then, 10min~30min is stood.
(7) after the completion of standing, take off removing dross, and be passed through into melt high-purity argon gas and carry out refinery by de-gassing, stand 5min~
10min。
(8) composition metal melt is ultrasonically treated, realizes nano-ceramic particle in metal bath using ultrasonic vibration
In it is evenly dispersed；Being ultrasonically treated temperature is 650 DEG C~720 DEG C, and ultrasonic power is 500W/l~3000W/l, ultrasonic time
1min~5min.
(9) Composite Melt is poured, is shaped by die casting or extrusion casint, nano particle hybrid, which is made, enhances aluminium base
Composite material.
Method in order to further illustrate the present invention is further described combined with specific embodiments below.
Embodiment 1
The target components and its weight percent of the present embodiment composite material are as follows: SiC particulate 1%, Al2O3Particle 1%, it is remaining
Amount is aluminium alloy ZL101 (as ZAlSi7Mg).It is specific the preparation method comprises the following steps:
(1) SiC, Al for being 20nm by average grain diameter2O3The pure aluminium powder 1:1 in mass ratio that particle and average grain diameter are 20 μm:
23 ratio ingredients.
(2) by dry type high-energy ball milling, powder cold welding balling-up is mixed with 400r/min and prepares SiC, Al2O3Granule content difference
For the grade composite particles of 4wt%.The grade composite particles partial size of formation is 1mm.
(3) mold and pressure apparatus are used, grade composite particles are pressed into the prefabricated intermediate conjunction of diameter 80mm, high 50mm
Gold bullion, compacting pressure are 30MPa, and the theoretical density of alloy block is greater than 85%.
(4) fine aluminium or Al alloy block are added in crucible, melts matrix alloy, the commercially available of drying is added on melt surface layer
Coverture, temperature rise to 740 DEG C.Removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, then, is stood
15min, dwell temperature are 680 DEG C.
(5) after the completion of standing, under the protection of argon gas, the composite particles intermediate alloy block of preheating is added into melt, in advance
Hot temperature is 300 DEG C, and additional amount is by nano SiC, the Al for generating 1wt.% respectively2O3Particulates reinforcements are controlled.
(6) particle intermediate alloy block fusing to be composite, temperature is down to 650 DEG C, under the protection of argon gas, carries out mechanical stirring
20min, meanwhile, coverture, mixing speed 150r/min are sprinkled in bath surface；Then, 10min is stood, dwell temperature is
740℃。
(7) after the completion of standing, removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, stands 5min.
(8) composition metal melt is ultrasonically treated, realizes that nano-ceramic particle is evenly dispersed in metal bath；
Being ultrasonically treated temperature is 670 DEG C, ultrasonic power 500W/l, ultrasonic time 1min.
(9) by (SiC+Al2O3)/ZL101 compounding flux pours into mold rapidly, and cooling, solidification extrusion casint is configured to try
Sample or part.
Embodiment 2
The target components and its weight percent of the present embodiment composite material are as follows: SiC particulate 2%, Al2O3Particle 2%, it is remaining
Amount is aluminium alloy ZL201 (ZAl5CuMn).
(1) by average grain diameter be 40nm SiC, Al2O3 particle and average grain diameter be 40 μm pure aluminium powder by 1:1:14.7
Ratio ingredient.
(2) by dry type high-energy ball milling, powder cold welding balling-up is mixed with 450r/min and prepares SiC, Al2O3Granule content difference
For the grade composite particles of 6wt%.The grade composite particles partial size of formation is 2mm.
(3) mold and pressure apparatus are used, grade composite particles are pressed into prefabricated intermediate alloy block.Specifically, will milli
Meter level composite particles are pressed into the prefabricated intermediate alloy block of diameter 40mm, high 30mm, and compacting pressure is 10MPa, the theory of alloy block
Density is greater than 85%.
(4) fine aluminium or Al alloy block are added in crucible, melts matrix alloy, is melted to matrix alloy, in melt table
The coverture of drying is added in layer, and temperature rises to 780 DEG C.Removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing,
Then, 20min is stood, dwell temperature is 750 DEG C.
(5) after the completion of standing, under the protection of argon gas, the composite particles intermediate alloy block of preheating is added into melt, in advance
Hot temperature is 500 DEG C, and additional amount is by nano SiC, the Al for generating 2wt% respectively2O3Particulates reinforcements are controlled.
(6) particle intermediate alloy block fusing to be composite, temperature is down to 690 DEG C, under the protection of argon gas, carries out mechanical stirring
10min, meanwhile, coverture, mixing speed 300r/min are sprinkled in bath surface；Then, 20min is stood, dwell temperature is
750℃。
(7) after the completion of standing, removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, stands 10min.
(8) composition metal melt is ultrasonically treated, realizes that nano-ceramic particle is evenly dispersed in metal bath；
Being ultrasonically treated temperature is 690 DEG C, ultrasonic power 2000W/l, ultrasonic time 3min.
(9) by (SiC+Al2O3)/ZL201 compounding flux pours into mold rapidly, and cooling, solidification extrusion casint is configured to try
Sample or part.
Embodiment 3
The target components and its weight percent of the present embodiment composite material are as follows: SiC particulate 1%, TiC particle 1%, surplus
For aluminium alloy ZL101 (ZAlSi7Mg).
It is specific the preparation method comprises the following steps:
(1) by average grain diameter be 60nm SiC, TiC particle and average grain diameter be 60 μm pure aluminium powder in 1:1:23 ratio
Ingredient.
(2) it by dry type high-energy ball milling, powder cold welding balling-up is mixed with 400r/min prepares SiC, TiC granule content and be respectively
The grade composite particles of 4wt%.The grade composite particles partial size of formation is 3mm.
(3) mold and pressure apparatus are used, grade composite particles are pressed into the prefabricated intermediate conjunction of diameter 60mm, high 40mm
Gold bullion, compacting pressure are 20MPa, and the theoretical density of alloy block is greater than 85%.
(4) fine aluminium or Al alloy block are added in crucible, melts matrix alloy, the commercially available of drying is added on melt surface layer
Coverture, temperature rise to 740 DEG C.Removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, then, is stood
5min, dwell temperature are 740 DEG C.
(5) after the completion of standing, under the protection of argon gas, the composite particles intermediate alloy block of preheating is added into melt, in advance
Hot temperature is 300 DEG C, and additional amount is controlled by the nano SiC, the TiC particulates reinforcements that generate 1wt% respectively.
(6) particle intermediate alloy block fusing to be composite, temperature is down to 700 DEG C, under the protection of argon gas, carries out mechanical stirring
5min, meanwhile, coverture, mixing speed 150r/min are sprinkled in bath surface；Then, 10min is stood, dwell temperature is
740℃。
(7) after the completion of standing, removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, stands 5min.
(8) composition metal melt is ultrasonically treated, realizes that nano-ceramic particle is evenly dispersed in metal bath；
Being ultrasonically treated temperature is 650 DEG C, ultrasonic power 500W/l, ultrasonic time 1min.
(9) (SiC+TiC)/ZL101 compounding flux is poured into rapidly in mold, cooling, solidification extrusion casint is configured to try
Sample or part.
Embodiment 4
The target components and its weight percent of the present embodiment composite material are as follows: SiC particulate 4%, Al2O3Particle 4%, TiC
Particle 2%, surplus are aluminium alloy ZL201 (ZAl5CuMn).
(1) by average grain diameter be 80nm SiC, Al2O3, TiC particle and average grain diameter be 80 μm 2219 aluminium coppers
Powder is in 1:1:0.67:14 ratio ingredient.
(2) by dry type high-energy ball milling, powder cold welding balling-up is mixed with 600r/min and prepares SiC, Al2O3, TiC granule content
The respectively grade composite particles of 6wt%, 6wt%, 4wt%.The grade composite particles partial size of formation is 1mm~3mm.
(3) mold and pressure apparatus are used, grade composite particles are pressed into prefabricated intermediate alloy block.Specifically, will milli
Meter level composite particles are pressed into the prefabricated intermediate alloy block of diameter 50mm, high 40mm, and compacting pressure is 30MPa, the theory of alloy block
Density is greater than 85%.
(4) fine aluminium or Al alloy block are added in crucible, is melted to matrix alloy, the covering of drying is added on melt surface layer
Agent, temperature rise to 800 DEG C.Removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, then, stands 12min,
Dwell temperature is 660 DEG C.
(5) after the completion of standing, under the protection of argon gas, the composite particles intermediate alloy block of preheating is added into melt, in advance
Hot temperature is 600 DEG C, and additional amount is by nano SiC, the Al for generating total amount 10wt%2O3, TiC particulates reinforcements are controlled.
(6) particle intermediate alloy block fusing to be composite, temperature is down to 700 DEG C, under the protection of argon gas, carries out mechanical stirring
15min, meanwhile, coverture, mixing speed 500r/min are sprinkled in bath surface；Then, 30min is stood, dwell temperature is
700℃。
(7) after the completion of standing, removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, stands 10min.
(8) composition metal melt is ultrasonically treated, realizes that nano-ceramic particle is evenly dispersed in metal bath；
Being ultrasonically treated temperature is 700 DEG C, and ultrasonic power is 3000W/l ultrasonic time 5min.
(9) by (SiC+Al2O3+ TiC)/ZL201 compounding flux pours into mold rapidly, cooling, solidification extrusion casint forming
For sample or part.
Embodiment 5
The target components and its weight percent of the present embodiment composite material are as follows: SiC particulate 2%, B4C particle 2%, surplus
For aluminium alloy ZL102 (ZAlSi12).
(1) SiC, B for being 60nm by average grain diameter4The pure aluminium powder that C particle and average grain diameter are 60 μm presses 1:1:14.7 ratio
Example ingredient.
(2) by dry type high-energy ball milling, powder cold welding balling-up is mixed with 500r/min and prepares SiC, B4C granule content is respectively
The grade composite particles of 6wt%.The grade composite particles partial size of formation is 1mm~3mm.
(3) mold and pressure apparatus are used, grade composite particles are pressed into prefabricated intermediate alloy block.Specifically, will milli
Meter level composite particles are pressed into the prefabricated intermediate alloy block of diameter 60mm, high 40mm, and compacting pressure is 20MPa, the theory of alloy block
Density is greater than 85%.
(4) fine aluminium or Al alloy block are added in crucible, melts matrix alloy, is melted to matrix alloy, in melt table
The coverture of drying is added in layer, and temperature rises to 700 DEG C.Removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing,
Then, quiet 20min, dwell temperature are 750 DEG C.
(5) after the completion of standing, under the protection of argon gas, the composite particles intermediate alloy block of preheating is added into melt, in advance
Hot temperature is 500 DEG C, and additional amount is by nano SiC, the B for generating 2wt% respectively4C particulates reinforcements are controlled.
(6) particle intermediate alloy block fusing to be composite, temperature is down to 690 DEG C, under the protection of argon gas, carries out mechanical stirring
10min, meanwhile, coverture, mixing speed 300r/min are sprinkled in bath surface；Then, 20min is stood, dwell temperature is
750℃。
(7) after the completion of standing, removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, stands 8min.
(8) composition metal melt is ultrasonically treated, realizes that nano-ceramic particle is evenly dispersed in metal bath；
Being ultrasonically treated temperature is 720 DEG C, ultrasonic power 2000W/l, ultrasonic time 3min.
(9) by (SiC+B4C)/ZL102 compounding flux pours into mold rapidly, and cooling, solidification extrusion casint is configured to try
Sample or part.
Embodiment 6
The target components and its weight percent of the present embodiment composite material are as follows: SiC particulate 4%, Al2O3Particle 4%, B4C
Particle 2%, surplus are aluminium alloy ZL102 (ZAlSi12).
(1) SiC, Al for being 100nm by average grain diameter2O3、B4The pure aluminium powder that C particle and average grain diameter are 100 μm presses 1:1:
0.67:14 ratio ingredient.
(2) by dry type high-energy ball milling, powder cold welding balling-up is mixed with 600r/min and prepares SiC, Al2O3、B4C granule content
The respectively grade composite particles of 6wt%, 6wt%, 4wt%.The grade composite particles partial size of formation is 1mm~3mm.
(3) mold and pressure apparatus are used, grade composite particles are pressed into prefabricated intermediate alloy block.Specifically, will milli
Meter level composite particles are pressed into the prefabricated intermediate alloy block of diameter 40mm, high 50mm, and compacting pressure is 20MPa, the theory of alloy block
Density is greater than 85%.
(4) fine aluminium or Al alloy block are added in crucible, is melted to matrix alloy, the covering of drying is added on melt surface layer
Agent, temperature rise to 800 DEG C.Removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, then, stands 10min,
Dwell temperature is 700 DEG C.
(5) after the completion of standing, under the protection of argon gas, the composite particles intermediate alloy block of preheating is added into melt, in advance
Hot temperature is 600 DEG C, and additional amount is by nano SiC, the Al for generating total amount 10wt%2O3、B4C particulates reinforcements are controlled.
(6) particle intermediate alloy block fusing to be composite, temperature is down to 700 DEG C, under the protection of argon gas, carries out mechanical stirring
15min, meanwhile, coverture, mixing speed 500r/min are sprinkled in bath surface；Then, 30min is stood, dwell temperature is
700℃。
(7) after the completion of standing, removing dross is taken off, and is passed through high-purity argon gas into melt and carries out refinery by de-gassing, stands 10min.
(8) composition metal melt is ultrasonically treated, realizes that nano-ceramic particle is evenly dispersed in metal bath；
Being ultrasonically treated temperature is 700 DEG C, and ultrasonic power is 3000W/l ultrasonic time 5min.
(9) by (SiC+Al2O3+B4C)/ZL102 compounding flux pours into mold rapidly, cooling, solidification extrusion casint forming
For sample or part.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of hybrid reinforced aluminum-matrix composite material, which is characterized in that matrix is aluminium or aluminium alloy, and hybrid buildup is mutually nanometer
SiC particulate and other nano-ceramic particles, other nano-ceramic particles are selected from Al2O3, TiC and B4C, nano SiC granule and its
His nano-ceramic particle is additional rather than in-situ preparation,
The partial size of the nano SiC granule and other nano-ceramic particles is 20nm~100nm,
The nano SiC granule accounts for the 1%~4% of entire hybrid reinforced aluminum-matrix composite material gross mass, other nanometers pottery
Porcelain particle accounts for the 1%~6% of entire hybrid reinforced aluminum-matrix composite material gross mass.
2. a kind of method for preparing hybrid reinforced aluminum-matrix composite material as described in claim 1, which is characterized in that it includes such as
Lower step:
S1: nano SiC granule, other nano-ceramic particles and micron order aluminum or aluminum alloy powder are subjected to ingredient, mixing, obtained
Mixture,
S2: above-mentioned mixture high speed is mixed into the balling-up of powder cold welding, prepares grade composite particles, grade composite particles partial size is
1mm~3mm,
S3: being pressed into alloy block for grade composite particles, and the theoretical density of alloy block is greater than 85%,
S5: the alloy block suppressed to the composite particles that preheating is added in the melt of fine aluminium or aluminium alloy, preheating temperature are 300 DEG C
~600 DEG C, composition metal melt is formed,
S8: being ultrasonically treated composition metal melt, realizes nano-ceramic particle in metal bath using ultrasonic vibration
It is evenly dispersed,
S9: by uniformly mixed composition metal melt cast, hybrid reinforced aluminum-matrix composite material is formed.
3. method according to claim 2, which is characterized in that it further includes step S6 and step S7, wherein is executing step
Rapid S5 followed by executes step S6, followed by executes step S7 executing the step S6,
S6: after the alloy block fusing of particle compacting to be composite, composition metal melt temperature is down to 650 DEG C~700 DEG C, compound
Metal bath surface sprinkles coverture, while under the protection of argon gas, carries out mechanical stirring 5min~20min, and mixing speed is
150r/min~500r/min,
Then, 10min~30min is stood,
S7: after the completion of standing, taking off removing dross, and is passed through high-purity argon gas into composition metal melt and carries out refinery by de-gassing, refining knot
Shu Hou stands 5min~10min.
4. method as claimed in claim 3, which is characterized in that it further includes step S4,
S4: fine aluminium or Al alloy block are melted, and the coverture of drying is added on melt surface layer, then heats temperature rising to 700
DEG C~800 DEG C, removing dross is then taken off, high-purity argon gas is passed through into melt and carries out refinery by de-gassing, then, stands 5min~20min,
Dwell temperature is 660 DEG C~750 DEG C.
5. method as claimed in claim 4, which is characterized in that in step S2, using high-energy ball milling mode, by mixture high speed
Mixed powder cold welding balling-up, ball milling speed are 400r/min~600r/min.
6. method as claimed in claim 5, which is characterized in that in step S3, grade composite particles are pressed into diameter
The prealloy block of 40mm~80mm, high 30mm~50mm, compacting pressure are 10MPa~30MPa.
7. method as claimed in claim 6, which is characterized in that in step S8: ultrasonic treatment temperature is 650 DEG C~720 DEG C, is surpassed
Acoustical power is 500W/l~3000W/l, ultrasonic time 1min~5min.
8. the method for claim 7, which is characterized in that, will by die casting or extrusion casint manufacturing process in step S9
Uniformly mixed composition metal melt cast forming, is made nano particle hybrid reinforced aluminum matrix composites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710636951.1A CN107460376B (en) | 2017-07-31 | 2017-07-31 | A kind of hybrid reinforced aluminum-matrix composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710636951.1A CN107460376B (en) | 2017-07-31 | 2017-07-31 | A kind of hybrid reinforced aluminum-matrix composite material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107460376A CN107460376A (en) | 2017-12-12 |
| CN107460376B true CN107460376B (en) | 2019-08-13 |
Family
ID=60547940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710636951.1A Active CN107460376B (en) | 2017-07-31 | 2017-07-31 | A kind of hybrid reinforced aluminum-matrix composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107460376B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048682A (en) * | 2018-01-18 | 2018-05-18 | 吉林大学 | A kind of short flow process for improving Al-Mn wrought aluminium alloy elevated temperature strengths |
| CN109207781A (en) * | 2018-09-17 | 2019-01-15 | 南昌大学 | A kind of pressing method improving 7075 aluminium alloys |
| US20200199714A1 (en) * | 2018-12-24 | 2020-06-25 | Industrial Technology Research Institute | Metal-ceramic composite material and method for forming the same |
| CN111979453A (en) * | 2019-05-23 | 2020-11-24 | 北京弘微纳金科技有限公司 | High-strength high-conductivity aluminum-based composite material and preparation method thereof |
| CN109609814B (en) * | 2018-12-27 | 2020-03-20 | 吉林大学 | High-strength aluminum alloy with high elastic modulus mixed with double-scale ceramic particles and preparation method thereof |
| CN109759578B (en) * | 2019-01-28 | 2021-11-23 | 华南理工大学 | Aluminum-based composite powder for 3D printing assembled and modified by two types of ultrafine ceramic particles and preparation method and application thereof |
| CN111593218B (en) * | 2020-05-12 | 2022-07-22 | 大连理工大学 | Micro-nano particle reinforced aluminum-based composite material and preparation method thereof |
| CN112481516B (en) * | 2020-11-24 | 2022-01-28 | 中北大学 | Al-Ti-SiC intermediate alloy and preparation method and application thereof |
| CN112662918A (en) * | 2020-12-02 | 2021-04-16 | 国网电力科学研究院武汉南瑞有限责任公司 | Al2O3-TiC particle reinforced aluminum matrix composite material and preparation method thereof |
| CN114574789B (en) * | 2022-03-14 | 2023-02-24 | 宁波杭州湾新材料研究院 | Silicon carbide fiber, medium-high entropy ceramic reinforced metal matrix composite material and preparation method |
| CN114525434A (en) * | 2022-04-22 | 2022-05-24 | 西安欧中材料科技有限公司 | SiC-induced multiphase reinforced aluminum matrix composite material and preparation method thereof |
| CN115404388B (en) * | 2022-09-08 | 2023-05-16 | 山东创新精密科技有限公司 | Composite reinforced aluminum alloy material and preparation method thereof |
| CN116121581B (en) * | 2023-01-17 | 2024-03-19 | 江苏大学 | Particle reinforced aluminum-based composite intermediate alloy, aluminum-based composite material and preparation methods thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1986859A (en) * | 2006-12-28 | 2007-06-27 | 上海交通大学 | Grain-mixing strengthened aluminium-base composite material |
| CN101748306A (en) * | 2008-12-02 | 2010-06-23 | 苏州有色金属研究院有限公司 | Multiphase ceramic hybrid composite reinforced metal matrix composite material and preparation process thereof |
| CN104911416A (en) * | 2015-06-19 | 2015-09-16 | 华中科技大学 | In-situ particle mixed reinforced aluminum-based composite material and preparation method thereof |
| CN105132733A (en) * | 2015-09-29 | 2015-12-09 | 华中科技大学 | Method for preparing nano particle reinforced aluminum matrix composites |
| CN106756319A (en) * | 2016-12-13 | 2017-05-31 | 中国科学院金属研究所 | A kind of aluminium alloy and aluminum matrix composite for preparing high-strength high-plastic aluminum matrix composite |
-
2017
- 2017-07-31 CN CN201710636951.1A patent/CN107460376B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1986859A (en) * | 2006-12-28 | 2007-06-27 | 上海交通大学 | Grain-mixing strengthened aluminium-base composite material |
| CN101748306A (en) * | 2008-12-02 | 2010-06-23 | 苏州有色金属研究院有限公司 | Multiphase ceramic hybrid composite reinforced metal matrix composite material and preparation process thereof |
| CN104911416A (en) * | 2015-06-19 | 2015-09-16 | 华中科技大学 | In-situ particle mixed reinforced aluminum-based composite material and preparation method thereof |
| CN105132733A (en) * | 2015-09-29 | 2015-12-09 | 华中科技大学 | Method for preparing nano particle reinforced aluminum matrix composites |
| CN106756319A (en) * | 2016-12-13 | 2017-05-31 | 中国科学院金属研究所 | A kind of aluminium alloy and aluminum matrix composite for preparing high-strength high-plastic aluminum matrix composite |
Non-Patent Citations (1)
| Title |
|---|
| 混杂增强铝基复合材料的研究进展;张雪囡等;《宇航材料工艺》;20040830;第1-6页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107460376A (en) | 2017-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107460376B (en) | A kind of hybrid reinforced aluminum-matrix composite material and preparation method thereof | |
| Jawalkar et al. | Fabrication of aluminium metal matrix composites with particulate reinforcement: a review | |
| CN103866154B (en) | In a kind of composite, micro-nano granules strengthens the Dispersed precipitate method of phase | |
| CN101748306B (en) | Multiphase ceramic hybrid composite reinforced metal matrix composite material and preparation process thereof | |
| CN103173663B (en) | Preparation method of high-quality Al-Ti-B-Sr master alloy composite refining modifier | |
| CN108746625A (en) | A kind of preparation method of aluminum-base nano composite material | |
| CN104593652B (en) | Quasicrystal and alumina mixed particle reinforced magnesium-based composite material and manufacturing method thereof | |
| CN101514409B (en) | A method for preparing in situ MgSi particle reinforced metal matrix composite | |
| CN104789805B (en) | A kind of preparation method of carbon nano-tube reinforced metal-matrix composite material | |
| CN101168809B (en) | Preparing technique of endogenesis sub-micron TiB2 particle enhanced aluminum-base composite material | |
| CN110257655A (en) | A kind of high diffusive distribution nano titanium diboride particle enhanced aluminum-based composite material and preparation method thereof | |
| CN103627932B (en) | A kind of particle enhanced aluminum-based composite material and preparation method thereof | |
| Gupta et al. | Fabrication of ceramic reinforcement aluminium and its alloys metal matrix composite materials: A review | |
| CN101168810A (en) | High-strength high-modulus aluminum-base composite material and preparation method thereof | |
| CN100443605C (en) | Preparation method of granule-mixed reinforced aluminium-based composite material | |
| Xu et al. | Effect of Al-3 wt% Al2O3 master alloy fabricated by calcined kaolin on grain refinement and mechanical properties of A356 alloy | |
| CN109692964A (en) | A kind of reinforced aluminum matrix composites and preparation method thereof | |
| Huashun et al. | Preparation of Al-Al3Ti in situ composites by direct reaction method | |
| CN104372208A (en) | Endogenous particle hybrid reinforced aluminum matrix composite and preparation method thereof | |
| CN109385551A (en) | A kind of coated with titanium oxide/graphene oxide enhancing preparation method for material of substrate containing magnalium | |
| CN107974569A (en) | A kind of preparation method of aluminium based composite material enhanced by miscellaneous granules | |
| CN110016597A (en) | A kind of TiB2Particle enhances ultra-high-strength aluminum alloy composite material and homogenizes preparation method | |
| CN103233138A (en) | Grain refiner for magnesium-aluminum (Mg-Al) magnesium alloy and preparation method thereof | |
| CN104164583A (en) | Method for preparing aluminum-base composite material by in-situ synthesis | |
| CN104789810B (en) | A kind of situ Al3The preparation method of Ti particle REINFORCED Al Si Cu composite material semi-solid state slurries |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |