CN104630517A - Preparation method of in-situ particle reinforced aluminum-based composite material - Google Patents
Preparation method of in-situ particle reinforced aluminum-based composite material Download PDFInfo
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- CN104630517A CN104630517A CN201510051780.7A CN201510051780A CN104630517A CN 104630517 A CN104630517 A CN 104630517A CN 201510051780 A CN201510051780 A CN 201510051780A CN 104630517 A CN104630517 A CN 104630517A
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Abstract
The invention discloses a preparation method of an in-situ particle reinforced aluminum-based composite material. The preparation method comprises the following steps: firstly, performing pretreatment on uhligite tailings, namely screening the uhligite tailings by use of a specific gravity method before ball milling, then screening by use of a screen to obtain the uhligite tailings having the particle diameter ranging from 150 microns to 180 microns, and drying to obtain tailing addition particles; secondly, adding the tailing addition particles to pure aluminum by use of a stirring casting method to obtain the in-situ particle reinforced aluminum-based composite material. The adopted uhligite tailings are relatively high in SiO2 content, and also contain aluminum silicate having positive contribution to the mechanical properties of the composite material; seen from the microstructure of the material, the reinforcing body is well bonded with the substrate and the reinforcing body is evenly distributed; the addition amount of the reinforcing body is easy to control, and the prepared composite material shows excellent mechanical properties.
Description
Technical field
The present invention relates to the preparation method of aluminum matrix composite, particularly a kind of discarded tailings adopting the industry of zirconium English powder to produce is as the preparation method of the aluminum matrix composite of the raw-material in-situ particle enhancing of reinforcement.
Background technology
Matrix material is by two or more constituent element through certain process combining, plays the synergistic effect between constituent element and the material of excellent performance prepared.The producing and developing of matrix material has complied with the development of modern industry and technology, meets modern technologies to more and more higher the imposing of material mechanical performance.Common matrices of composite material has polymeric resin matrix, ceramic base, inorganic cement base and metal matrix etc.At present, polymer matrix composites preparation technology is comparatively simple, but its intensity is far less than metal-base composites.And pottery, cement-base composite material because of its matrix fragility large, purposes is severely limited.Metal-base composites is one of most widely used structure, functional materials in modern industry.Classify according to the type of composite material reinforcement body, matrix material mainly contains long fiber reinforcement, short fiber reinforced and particle reinforce etc. three kinds.The above two excellent in mechanical performance, but preparation cost is higher, and particle enhanced aluminum-based composite material is combined low with density for the ceramic particle of high elastic coefficient, high fragility, plasticity and good, the cheap aluminium of ductility, make it not only to show comparatively good specific tenacity, specific rigidity, little linear expansivity, also there is excellent wear resistance, thermotolerance, erosion resistance etc.Now, such matrix material has been widely used in space flight and aviation, automotive industry, 3C digital product shell and the daily household articles of people.
With regard to pattern classification prepared by particle enhanced aluminum-based composite material reinforcement, additional enhanced granule and matrix in-situ authigenic reinforcement two class can be divided into.Additional particle enhanced aluminum-based composite material is with SiC
p/ Al, Al
2o
3/ Al etc. are comparatively common.Chemical reaction between the reinforcement SiC of above-mentioned SiC/Al matrix material and Al needs comparatively high temps just can carry out, therefore, without prepared by any pretreated SiC Al based composites tissue between particle and reinforcement bonding force often limited.In-situ authigenic aluminum matrix composite is alloying element by adding or other materials and aluminum substrate generation chemical reaction, then generate reinforcement in the base, well, be conducive to the intensity of reinforced composite, such common material is as TiB for this kind of reinforcement and aluminum substrate bonding properties
2/ Al, Mg
2si/Al, (Al
3zr+Al
2o
3)
p/ Al, Al
2o
3/ SiO
2/ Al etc.In situ composites wear resisting property is better, at industrial circle by progressively promotion and application.But the reinforcement raw material needs prepared needed for above-mentioned particle enhanced aluminum-based composite material are bought specially, and some reinforcements are expensive.
Utilizing solid waste to prepare in the patent of aluminum matrix composite about relating to, patent No. CN200810036241 refer to and utilizes the scrap glass reclaimed to prepare SiO2/Al matrix material.Raw materials in this patent derives from domestic refuse glass, and other components are not only containing SiO
2, also containing Na
2siO
3, CaSiO
3deng.
After zircon sand hydrometer method is selected, can discard the tailings of roughing sand quality about 30%, this discarded tailings is except being recovered for except building trade on a small quantity, and traditional treatment method is usually in vacant lot landfill.For a long time, discarded uhligite thing tailings has caused the soil property deterioration of a large amount of land resources occupied He Duitian district.Because of SiO
2only be dissolved in the poisonous or severe corrosive solvent such as hydrofluoric acid, hot strong phosphoric acid, therefore more difficult purification is reclaimed.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art with not enough, the preparation method of the aluminum matrix composite that the object of the present invention is to provide a kind of in-situ particle to strengthen, preparation technology is simple, low production cost, realize " turning waste into wealth ", the aluminum matrix composite homogeneous microstructure obtained.
Object of the present invention is achieved through the following technical solutions:
A preparation method for the aluminum matrix composite that in-situ particle strengthens, comprises the following steps:
(1) uhligite tailings pre-treatment:
(1-1) uhligite tailings adopts hydrometer method screening, removes zircon sand;
(1-2) the uhligite tailings after step (1-1) process is taken out after planetary ball mill dry grinding 2 ~ 5min;
(1-3) utilize screen cloth to obtain uhligite tailings to step (1-2) and carry out sub-sieve, obtain the uhligite tailings that grain diameter is 150 μm-180 μm;
(1-4) step (1-3) is obtained uhligite tailings and carry out ultrasonic cleaning post-drying;
(1-5) the uhligite tailings that step (1-4) obtains is inserted in iron crucible, in retort furnace, carry out the calcination process that 650 ~ 750 DEG C continue 0.5 ~ 1.5 hour, obtain tailings and add particle;
(2) raw materials weighing: described raw material comprises commercial-purity aluminium and tailings adds particle; Wherein, described tailings adds the add-on of particle is 1 ~ 10wt% of raw material;
(3) melting fine aluminium at 660 ~ 850 DEG C, and remove slag, obtain molten aluminum liquid;
(4) graphite-made stirring rake is stretched in molten aluminum liquid stir;
(5) load weighted for step (2) tailings is added particle and add molten aluminum liquid owing to stirring the whirlpool center formed, Keep agitation 5 ~ 30min;
(6) C is added after stirring
2cl
6cast after degasification, after cooling, obtain the aluminum matrix composite that in-situ particle strengthens.
Step (2) described raw material also comprises pure Mg, and the add-on of described pure Mg is 0.1 ~ 5wt% of raw material total mass;
Step (3) is specially: melting fine aluminium at 660 ~ 850 DEG C, adds pure Mg, and removes slag, obtain molten aluminum liquid after fine aluminium fusing.
Step (3) described stirring, is specially: stir speed (S.S.) is 100 ~ 2000r/min.
Described commercial-purity aluminium is commercial-purity aluminium A00.
Principle of the present invention is as follows:
The uhligite tailings that the present invention adopts is except the SiO containing 70%
2also contain the pure aluminium silicate of 28% outward, this material is the high-quality reinforcement of some high-performance aluminum-base composite material at present.SiO
2can with the metal melt such as aluminium, magnesium generation replacement(metathesis)reaction, utilize this principle to add in metal melt, can prepare containing Al
2o
3, MgO reinforcement metal-base composites; Al
2siO
5be common aluminum matrix composite reinforcement, it is combined with matrix well in preparation process, has front to contribute to composite materials property.
In addition, SiO
2because its crystal type is different, density is between 2.20-2.66g/cm3, comparatively close with the density 2.70g/cm3 of aluminium.In preparation process, mechanical stirring is applied to aluminium liquid silica dioxide granule can be made to enter smoothly in molten aluminium.With SiO
2the effect of impregnation of melt and reinforcement can be improved as the interpolation particle preparing aluminum matrix composite.Fine aluminium and SiO
2following reaction can be there is at relatively low temperature:
4Al
(l)+3SiO
2(s)＝2Al
2O
3(s)+3Si
(s)
For overcoming SiO
2the deficiency that Young's modulus is lower, generates the Al with more high elastic coefficient by tailings and fusant reaction
2o
3material can be made to obtain higher rigidity thus play enhancement to matrix material.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) year that zirconium titanium CHARACTERISTICS OF TAILINGS SAND is annual, discarded amount was large; the present invention proposes rational recycling scheme to uhligite waste; take the lead in utilizing such waste to prepare the Al based composites with industrial application value, this is not only conducive to environment protection, also can create considerable economic benefit.
(2) in the present invention, zirconium titanium tailings pretreatment process is simple, what only need short period of time ball milling just can obtain uniform particle sizes adds particle, compared with mention in patent CN200810036241 utilize scrap glass to prepare particle enhanced aluminum-based composite material having more standby economy.
(3) SiO in uhligite tailings
2content reaches 70%, and surplus is the Al more than 28%
2siO
5and AlFe, the ZrSiO less than 1%
4.SiO
2can react with molten aluminium and generate the larger Al of Young's modulus
2o
3the intensity of pottery and then raising material; Al
2siO
5also be the common wild phase of metal-base composites, itself and molten aluminium consistency are better, and namely in this CHARACTERISTICS OF TAILINGS SAND, the composition of more than 98% has front to contribute to composite material strength.Mention the recycling to domestic waste glass in contrast patent CN200810036241, its main component is except SiO
2outer also containing multiple compounds such as a certain amount of Ca, Na, Pb, C μ, therefore use the tissue of domestic waste glass preparation particle reinforce Al based composites, performance controllability not as the tailings of this patent employing.
(4) the stirring preparation technology of the present invention's employing is easy, utilizes dispersed with stirring method can prepare the finely dispersed aluminum matrix composite of reinforcement, SiO under casting temperature
2after adding molten aluminium, reaction in－situ generates Al
2o
3, Al, SiO after reaction
2and Al
2o
3it is good that interface cohesion situation between three is difficult to the SiC/Al class aluminum matrix composite of matrix generation chemical reaction compared with reinforcement.
Accompanying drawing explanation
Fig. 1 is the 3D optical microphotograph pattern of the tailings interpolation particle of embodiments of the invention 1;
Fig. 2 is the XRD analysis result of the aluminum matrix composite of the tailings interpolation particle of embodiments of the invention 1;
Fig. 3 is the XRD material phase analysis result of the aluminum matrix composite of in-situ particle enhancing prepared by embodiments of the invention 1;
Fig. 4 is the metallographic structure figure of the aluminum matrix composite of in-situ particle enhancing prepared by embodiments of the invention 1.
Fig. 5 is the SEM organization chart of the amplification 80x of the aluminum matrix composite of in-situ particle enhancing prepared by embodiments of the invention 1.
Fig. 6 is the SEM organization chart of the amplification 500x of the aluminum matrix composite of in-situ particle enhancing prepared by embodiments of the invention 4.
Fig. 7 is the metallographic structure figure of the aluminum matrix composite of in-situ particle enhancing prepared by embodiments of the invention 4.
Fig. 8 is the SEM organization chart of the aluminum matrix composite of in-situ particle enhancing prepared by embodiments of the invention 4.
Fig. 9 is the different sample hardness value contrast of preparation in embodiments of the invention 5.
Figure 10 is different sample tensile strength values contrast prepared by embodiments of the invention 5.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
The preparation method of the aluminum matrix composite of the in-situ particle enhancing of the present embodiment, comprises the following steps:
(1) uhligite tailings pre-treatment:
The material that uhligite thing tailings selected by the present embodiment is discarded after deriving from the uhligite roughing sand dressing process of Malaysia's product;
(1-1), after uhligite tailings being adopted hydrometer method screening, remove zircon sand, collection main component is SiO
2with the uhligite thing tailings of pure aluminium silicate;
(1-2) the uhligite tailings after step (1-1) process is taken out after planetary ball mill dry grinding 3min;
(1-3) utilize screen cloth to obtain uhligite tailings to step (1-2) and carry out sub-sieve, obtain the uhligite tailings that grain diameter is 150 μm-180 μm;
(1-4) step (1-3) is obtained uhligite tailings insert in supersonic cleaning machine add suitable alcohols cleaning, cleaning after take out again dry on resistance heater;
(1-5) the uhligite tailings that step (1-4) obtains is inserted in iron crucible, in retort furnace, carry out the calcination process that 700 DEG C continue 1 hour, obtain tailings and add particle;
Fig. 1 is the stereoscopic microstructure of 3D adding particle after above-mentioned pretreatment technology; Fig. 2 is the XRD diffraction spectra that step (1-5) obtains that tailings adds particle, carries out the contrast of standard of physical card and sxemiquantitative composition analysis discovery SiO to it
2, Al
2siO
5composition and be about 98wt%, ZrSiO
4with the total content of AlFe less than 2wt%.
(2) raw materials weighing: described raw material adds granulometric composition by commercial-purity aluminium A00 and tailings; Wherein, described tailings adds the mass ratio of particle and commercial-purity aluminium is 1:9;
(3) melting fine aluminium at 750 DEG C, and remove slag, obtain molten aluminum liquid;
(4) graphite-made stirring rake placed-depth being about 2/3 of the aluminium liquid degree of depth in crucible enters in molten aluminum liquid, and placed-depth is about 2/3 of the aluminium liquid degree of depth in crucible and stirs, and stir speed (S.S.) is 500r/min; Selected graphite-made stirring rake processes (avoiding the use of metal stirring rake effectively can ensure the purity of melt Al) with high strength graphite clay, is fixed on the agitator arm that high temperature resistant stainless steel makes, and is connected with stirrer rotor with M10 nut;
(5) load weighted for step (2) tailings is added particle and add molten aluminum liquid owing to stirring the whirlpool center formed, Keep agitation 30min;
(6) C is added after stirring
2cl
6degasification, is involved in the gas in molten aluminium in removing whipping process; The above-mentioned melt handled well is poured in the mould of preheating 400 DEG C, naturally cooling in atmosphere, after cooling, obtain the aluminum matrix composite that in-situ particle strengthens.
Fig. 3 is the XRD thing phase test result of the aluminum matrix composite of in-situ particle enhancing prepared by the present embodiment.Fig. 4 is the metallographic microstructure of the aluminum matrix composite of in-situ particle enhancing prepared by the present embodiment.Fig. 5,6 is respectively the digital photograph of aluminum matrix composite under the SEM scanning electron microscope of amplifying 80x, amplification 500x of in-situ particle enhancing prepared by the present embodiment.Visible in figure, under this technique, material granule is uniformly dispersed.
Embodiment 2
The preparation method of the aluminum matrix composite of the in-situ particle enhancing of the present embodiment, comprises the following steps:
(1) uhligite tailings pre-treatment:
(1-1), after uhligite tailings being adopted hydrometer method screening, remove zircon sand, collection main component is SiO
2with the uhligite thing tailings of pure aluminium silicate;
(1-2) the uhligite tailings after step (1-1) process is taken out after planetary ball mill dry grinding 2min;
(1-3) utilize screen cloth to obtain uhligite tailings to step (1-2) and carry out sub-sieve, obtain the uhligite tailings that grain diameter is 150 μm-180 μm;
(1-4) step (1-3) is obtained uhligite tailings insert in supersonic cleaning machine add suitable alcohols cleaning, cleaning after take out again dry on resistance heater;
(1-5) the uhligite tailings that step (1-4) obtains is inserted in iron crucible, in retort furnace, carry out the calcination process that 650 DEG C continue 1.5 hours, obtain tailings and add particle;
(2) raw materials weighing: described raw material adds granulometric composition by commercial-purity aluminium A00 and tailings; Wherein, described tailings adds the mass ratio of particle and commercial-purity aluminium is 1:9;
(3) melting fine aluminium at 660 DEG C, and remove slag, obtain molten aluminum liquid;
(4) graphite-made stirring rake placed-depth being about 2/3 of the aluminium liquid degree of depth in crucible enters in molten aluminum liquid, and placed-depth is about 2/3 of the aluminium liquid degree of depth in crucible and stirs, and stir speed (S.S.) is 100r/min;
(5) load weighted for step (2) tailings is added particle and add molten aluminum liquid owing to stirring the whirlpool center formed, Keep agitation 5min;
(6) C is added after stirring
2cl
6degasification, is involved in the gas in molten aluminium in removing whipping process; The above-mentioned melt handled well is poured in the mould of preheating 400 DEG C, naturally cooling in atmosphere, after cooling, obtain the aluminum matrix composite that in-situ particle strengthens.
The microtexture of the aluminum matrix composite that the in-situ particle prepared of the present embodiment strengthens be that embodiment 1 is similar.
Embodiment 3
The preparation method of the aluminum matrix composite of the in-situ particle enhancing of the present embodiment, comprises the following steps:
(1) uhligite tailings pre-treatment:
(1-1), after uhligite tailings being adopted hydrometer method screening, remove zircon sand, collection main component is SiO
2with the uhligite thing tailings of pure aluminium silicate;
(1-2) the uhligite tailings after step (1-1) process is taken out after planetary ball mill dry grinding 5min;
(1-3) utilize screen cloth to obtain uhligite tailings to step (1-2) and carry out sub-sieve, obtain the uhligite tailings that grain diameter is 150 μm-180 μm;
(1-4) step (1-3) is obtained uhligite tailings insert in supersonic cleaning machine add suitable alcohols cleaning, cleaning after take out again dry on resistance heater;
(1-5) the uhligite tailings that step (1-4) obtains is inserted in iron crucible, in retort furnace, carry out the calcination process that 750 DEG C continue 0.5 hour, obtain tailings and add particle;
(2) raw materials weighing: described raw material adds granulometric composition by commercial-purity aluminium A00, tailings; Wherein, the mass ratio of described tailings interpolation particle, commercial-purity aluminium is 1:9;
(3) melting fine aluminium at 850 DEG C, adds load weighted Mg block after aluminium block fusing, removes slag, obtain molten aluminum liquid;
(4) graphite-made stirring rake placed-depth being about 2/3 of the aluminium liquid degree of depth in crucible enters in molten aluminum liquid, and placed-depth is about 2/3 of the aluminium liquid degree of depth in crucible and stirs, and stir speed (S.S.) is 2000r/min;
(5) load weighted for step (2) tailings is added particle and add molten aluminum liquid owing to stirring the whirlpool center formed, Keep agitation 20min;
(6) C is added after stirring
2cl
6degasification, is involved in the gas in molten aluminium in removing whipping process; The above-mentioned melt handled well is poured in the mould of preheating 400 DEG C, naturally cooling in atmosphere, after cooling, obtain the aluminum matrix composite that in-situ particle strengthens.
Embodiment 4
The preparation method of the aluminum matrix composite of the in-situ particle enhancing of the present embodiment, comprises the following steps:
(1) uhligite tailings pre-treatment:
(1-1), after uhligite tailings being adopted hydrometer method screening, remove zircon sand, collection main component is SiO
2with the uhligite tailings of pure aluminium silicate;
(1-2) the uhligite tailings after step (1-1) process is taken out after planetary ball mill dry grinding 3min;
(1-3) utilize screen cloth to obtain uhligite tailings to step (1-2) and carry out sub-sieve, obtain the uhligite tailings that grain diameter is 150 μm-180 μm;
(1-4) step (1-3) is obtained uhligite tailings insert in supersonic cleaning machine add suitable alcohols cleaning, cleaning after take out again dry on resistance heater;
(1-5) the uhligite tailings that step (1-4) obtains is inserted in iron crucible, in retort furnace, carry out the calcination process that 700 DEG C continue 1 hour, obtain tailings and add particle;
(2) raw materials weighing: described raw material adds particle by commercial-purity aluminium A00, tailings and pure Mg forms; Wherein, the mass ratio of described tailings interpolation particle, pure Mg, commercial-purity aluminium is 10:1:89;
(3) melting fine aluminium at 750 DEG C, adds load weighted Mg block after aluminium block fusing, removes slag, obtain molten aluminum liquid;
(4) graphite-made stirring rake placed-depth being about 2/3 of the aluminium liquid degree of depth in crucible enters in molten aluminum liquid, and placed-depth is about 2/3 of the aluminium liquid degree of depth in crucible and stirs, and stir speed (S.S.) is 500r/min;
(5) load weighted for step (2) tailings is added particle and add molten aluminum liquid owing to stirring the whirlpool center formed, Keep agitation 30min;
(6) C is added after stirring
2cl
6degasification, is involved in the gas in molten aluminium in removing whipping process; The above-mentioned melt handled well is poured in the mould of preheating 400 DEG C, naturally cooling in atmosphere, after cooling, obtain the aluminum matrix composite that in-situ particle strengthens.
Fig. 7 is the metallographic structure of the aluminum matrix composite of in-situ particle enhancing prepared by the present embodiment; Fig. 8 is the SEM figure of the aluminum matrix composite adding in-situ particle enhancing prepared by the present embodiment.From figure contrast, the enhanced granule in matrix becomes ellipsoid shape from the approximate sphericity of Fig. 3, and the aluminum matrix composite that particle degree of scatter in the tissue strengthens than the in-situ particle of embodiment 1 is more even.
Embodiment 5
The present embodiment adopts the technique identical with embodiment 1 to carry out pre-treatment to uhligite tailings, adopts sample material composition as shown in table 1.
The sample material composition of table 1 the present embodiment
Wherein, together, the preparation technology of sample 6 and embodiment 4 are together for the preparation technology of sample 1 ~ 5 and embodiment 1.
Fig. 9 is sample 1 ~ 6 Brinell hardness test result of the present embodiment, data show along with uhligite thing tailings in aluminum substrate content rise, its hardness increases greatly, Mg element add the hardness performance that can promote matrix material further.Figure 10 is sample 1 ~ 6 tensile strength of the present embodiment, and show that the stretch-proof performance adding 10wt% uhligite thing tailings/Al based composites is 100.714Mpa, comparatively fine aluminium A00 matrix stretch-proof performance 55.746Mpa is significantly increased.Meanwhile, make the tensile property of matrix material more excellent adding of Mg element.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not limited by the examples; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (4)
1. a preparation method for the aluminum matrix composite of in-situ particle enhancing, is characterized in that, comprise the following steps:
(1) uhligite tailings pre-treatment:
(1-1) uhligite tailings adopts hydrometer method screening, removes zircon sand;
(1-2) the uhligite tailings after step (1-1) process is taken out after planetary ball mill dry grinding 2 ~ 5min;
(1-3) utilize screen cloth to obtain uhligite tailings to step (1-2) and carry out sub-sieve, obtain the uhligite tailings that grain diameter is 150 μm-180 μm;
(1-4) step (1-3) is obtained uhligite tailings and carry out ultrasonic cleaning post-drying;
(1-5) the uhligite tailings that step (1-4) obtains is inserted in iron crucible, in retort furnace, carry out the calcination process that 650 ~ 750 DEG C continue 0.5 ~ 1.5 hour, obtain tailings and add particle;
(2) raw materials weighing: described raw material comprises commercial-purity aluminium and tailings adds particle; Wherein, described tailings adds the add-on of particle is 1 ~ 10wt% of raw material;
(3) melting fine aluminium at 660 ~ 850 DEG C, and remove slag, obtain molten aluminum liquid;
(4) graphite-made stirring rake is stretched in molten aluminum liquid stir;
(5) load weighted for step (2) tailings is added particle and add molten aluminum liquid owing to stirring the whirlpool center formed, Keep agitation 5 ~ 30min;
(6) C is added after stirring
2cl
6cast after degasification, after cooling, obtain the aluminum matrix composite that in-situ particle strengthens.
2. the preparation method of the aluminum matrix composite of according to claim 1 particle reinforce, is characterized in that, step (2) described raw material also comprises pure Mg, and the add-on of described pure Mg is 0.1 ~ 5wt% of raw material total mass;
Step (3) is specially: melting fine aluminium at 660 ~ 850 DEG C, adds pure Mg, and removes slag, obtain molten aluminum liquid after fine aluminium fusing.
3. the preparation method of the aluminum matrix composite of according to claim 1 particle reinforce, is characterized in that, step (3) described stirring, is specially: stir speed (S.S.) is 100 ~ 2000r/min.
4. the preparation method of the aluminum matrix composite of according to claim 1 particle reinforce, is characterized in that, described commercial-purity aluminium is commercial-purity aluminium A00.
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Cited By (1)
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| CN105478724A (en) * | 2015-12-23 | 2016-04-13 | 华南理工大学 | High-entropy alloy particle reinforced aluminum base composite material and stirring casting preparation process thereof |
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| CN108359823B (en) * | 2018-04-10 | 2019-09-27 | 东北大学 | A kind of preparation method of in-situ preparation MgO dispersion-strengtherning Ultra-fine Grained Al-Mg alloy |
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| CN1526841A (en) * | 2003-09-20 | 2004-09-08 | 昆明理工大学 | Method of preparing aluminium-base composite material with aluminium and domestic garbage cinder |
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