CN107760892A - A kind of method of magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing and application - Google Patents
A kind of method of magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing and application Download PDFInfo
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- CN107760892A CN107760892A CN201711004489.XA CN201711004489A CN107760892A CN 107760892 A CN107760892 A CN 107760892A CN 201711004489 A CN201711004489 A CN 201711004489A CN 107760892 A CN107760892 A CN 107760892A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/04—Alloys based on magnesium with zinc or cadmium as the next major constituent
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
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Abstract
Present invention relates particularly to a kind of method of the magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing and application；Coal base solid waste point is added in the magnesium alloy fused mass of Icosahedral phases enhancing several times first, each ultrasonic vibration during carrying out mechanical agitation and auxiliary temperature-reducing, make coal base solid waste even particulate dispersion, obtain as cast condition coal base solid waste+Icosahedral phases hybrid buildup magnesium alloy, constant temperature Ultra-Low Speed extruding is carried out to as cast condition coal base solid waste+Icosahedral phases hybrid buildup magnesium alloy again, obtains fine grain coal base solid waste+Icosahedral phases hybrid buildup magnesium alloy；The present invention efficiently solves coal base solid waste composition granule and melt heating caused by heat release occurs when adding, simple mechanical, which is effectively improved, with reference to ultrasonic vibration is dispersed with stirring the problem of uneven, and step refining magnesium alloy crystal grain is squeezed into by constant temperature Ultra-Low Speed, makes magnesium alloy that there is good comprehensive mechanical property.
Description
Technical field
The present invention relates to technical field of alloy material, and in particular to a kind of coal base solid waste enhancing Icosahedral phases enhancing
The method of magnesium alloy and application.
Background technology
Magnesium alloy has low-density, high specific strength, good capability of electromagnetic shielding and the series of advantages such as is easily recycled, and makes
It turns into a kind of very popular lightweight structural material.But magnesium is close-packed hexagonal structure, easily formed in secondary processing process micro-
The defects of crackle, this will limit magnesium alloy widely using as structural material.Icosahedral phases have surface energy low and magnesium matrix knot
The characteristics such as preferable, deformability is more excellent are closed, but the magnesium alloy room temperature strength of Icosahedral phases enhancing is relatively low.In addition, additional particle
It is a kind of method of conventional raising metal material performance.Conventional additional particle has silicon-carbide particle, titanium diboride and carbon
Change titanium etc..Flyash is the discarded object of power boiler discharge of coal-burning power plant's discharge, with the development of power industry, based on flyash
Coal base solid waste also turns into one of main solid slag in China, and coal base discarded object is added into magnesium alloy as enhancing
Phase then there are no correlative study.
On the other hand, magnesium alloy is be easily formed stomata, loose and shrinkage cavity the defects of during casting, therefore, industry
Usually require to carry out secondary deformation to magnesium alloy in eliminate these defects.Wherein hot extrusion is a kind of conventional hot-working
Method.Research shows that extrusion process parameters have on the microscopic structure and mechanical property of magnesium alloy and significantly affected that traditional magnesium closes
Golden extrusion process is generally difficult to realize the preparation of fine grain magnesium alloy.
The content of the invention
The present invention is solves the magnesium alloy of the existing Icosahedral phases enhancing relatively low technical problem of intensity at room temperature, by solid slag
Coal base solid waste is applied to the magnesium alloy of enhancing Icosahedral phases enhancing, there is provided a kind of coal base solid waste enhancing Icosahedral phases increase
The method of strong magnesium alloy and application.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
Coal base solid waste is used for the application for strengthening the magnesium alloy of Icosahedral phases enhancing.
The particle size of the coal base solid waste is 5 ~ 10 μm.
The material mixture ratio of the magnesium alloy of the Icosahedral phases enhancing is that mass fraction is 3.5%Zn, 0.5%Y and 96%Mg.
A kind of method of the magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing, comprises the following steps：
The first step, the addition of coal base solid waste；The coal base solid waste point screened is added to several times first and carried
Before prepare Icosahedral phases enhancing magnesium alloy fused mass in, every time add after carry out mechanical agitation first, then in magnesium alloy
Melt carries out ultrasonic activation during cooling, last time adds coal base solid waste and carries out mechanical agitation and ultrasonic wave
After vibration, the magnesium alloy for adding the Icosahedral phases enhancing for having coal base solid waste is heated up 50 DEG C, insulation 30min is poured into later
In preheated casting die, the magnesium alloy of as cast condition coal base solid waste+Icosahedral phases hybrid buildup is obtained；
Second step, the extruding of constant temperature Ultra-Low Speed；The magnesium that the first step is obtained to as cast condition coal base solid waste+Icosahedral phases hybrid buildup closes
Gold is placed in extrusion die progress constant temperature Ultra-Low Speed extruding, and extrusion temperature is 240 ~ 280 DEG C, and extrusion speed is 0.005 ~
0.015mm/s；The magnesium alloy of fine grain coal base solid waste+Icosahedral phases hybrid buildup is obtained after extruding.
Coal base solid waste composition granule is added in preparation method every time and applies mechanical agitation and ultrasonic vibration, consolidates coal base
Body discarded object even particulate dispersion；Fast exothermic causes melt to be brought rapidly up rear simple machine when coal base solid waste composition granule adds
Tool is dispersed with stirring uneven, is aided with ultrasonic vibration during magnesium alloy fused mass cools and efficiently solves coal base solid waste
Particle simple mechanical when adding is dispersed with stirring the problem of uneven.And step refining magnesium is squeezed into by constant temperature Ultra-Low Speed
Alloy grain, make magnesium alloy that there is good comprehensive mechanical property.
In the above method first step, the particle size of the coal base solid waste of addition is 5 ~ 10 μm.
In the first step, the material mixture ratio of the magnesium alloy of the Icosahedral phases enhancing prepared in advance is that mass fraction is 3.5%
Zn, 0.5%Y and 96%Mg.
Mechanical agitation speed is 500 ~ 1200rpm in the first step, resulting as cast condition coal base solid waste+standard in the first step
The mass fraction of magnesium alloy base containing the coal solid waste of crystalline phase hybrid buildup is 2 ~ 5%.
In the first step, the time that magnesium alloy is in melt state ultrasonic vibration is 15 ~ 25min, is surpassed in process of setting
The time of acoustic vibration is 5 ~ 10min.
In second step, when the magnesium alloy of as cast condition coal base solid waste+Icosahedral phases hybrid buildup heats in extrusion die
Between be 30 ~ 45min, extrusion temperature is 250 DEG C, extruding rate 0.01mm/s.
The magnesium alloy of as cast condition coal base solid waste+Icosahedral phases hybrid buildup obtained by the first step is through 100 times of optical microphotographs
Observation, coal base solid waste composition granule are well dispersed.
By second step constant temperature Ultra-Low Speed extruding after carry out scanning group knit observation magnesium alloy substrate it is more homogeneous, coal base solid
Discarded object particle size is about 5 μm, and microcosmic upper distribution of particles is visibly homogeneous.
The magnesium alloy for fine grain coal base solid waste+Icosahedral phases hybrid buildup that second step is finally prepared is relative to the first step
The magnesium alloy of obtained as cast condition coal base solid waste+Icosahedral phases hybrid buildup, its tensile strength and elongation percentage have larger
Improve.
Compared with prior art the invention has the advantages that：
Coal base solid waste composition granule point is added in the magnesium alloy fused mass of Icosahedral phases enhancing by the present invention several times first, every time
Add and apply mechanical agitation and assisting ultrasonic vibration, make coal base solid waste even particulate dispersion, coal base solid waste
Particle add when Fast exothermic cause melt be brought rapidly up rear simple mechanical be dispersed with stirring it is uneven, magnesium alloy fused mass cooling
During be aided with ultrasonic vibration efficiently solve coal base solid waste composition granule add when simple mechanical be dispersed with stirring it is uneven
The problem of.And step refining magnesium alloy crystal grain is squeezed into by constant temperature Ultra-Low Speed, makes magnesium alloy that there is good resultant force
Learn performance.
Brief description of the drawings
Fig. 1 is that the as cast condition coal base solid that the mass fraction of the solid waste of base containing coal obtained by the first step of example 1 is 2% gives up
100 times of optical microstructures of the magnesium alloy of gurry+Icosahedral phases hybrid buildup.
Fig. 2 is that the as cast condition coal base solid that the mass fraction of the solid waste of base containing coal obtained by the first step of example 2 is 5% gives up
100 times of optical microstructures of the magnesium alloy of gurry+Icosahedral phases hybrid buildup.
Fig. 3 is that the fine grain coal base solid that containing mass fraction is 2% of the second step of example 1 after the extruding of constant temperature Ultra-Low Speed gives up
Scanning tissue picture of the gurry+Icosahedral phases hybrid buildup magnesium alloy along the direction of extrusion.
Fig. 4 is that the fine grain coal base solid that containing mass fraction is 5% of the second step of example 2 after the extruding of constant temperature Ultra-Low Speed gives up
Scanning tissue picture of the gurry+Icosahedral phases hybrid buildup magnesium alloy along the direction of extrusion.
Fig. 5 is that the magnesium alloy progress performance test after the first step of example 1 to second step addition coal base solid waste obtains
Engineering stress-engineering strain curve map, "●" represents the as cast condition coal of addition coal base solid waste prepared by the first step in figure
Engineering strain-engineering stress curve map of base solid waste+Icosahedral phases hybrid buildup magnesium alloy, " ■ " represents second step in figure
Engineering strain-engineering stress curve map of the magnesium alloy through the extruding of constant temperature Ultra-Low Speed prepared.
Fig. 6 is that the magnesium alloy progress performance test after the first step of example 2 to second step addition coal base solid waste obtains
Engineering stress-engineering strain curve map, "●" represents that the first step adds the as cast condition coal base solid of coal base solid waste in figure
Engineering strain-engineering stress curve map of discarded object+Icosahedral phases hybrid buildup magnesium alloy, " ■ " represents prepared by second step in figure
Engineering strain-engineering stress curve map of magnesium alloy through the extruding of constant temperature Ultra-Low Speed.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
The fine grain coal base solid waste+Icosahedral phases hybrid buildup obtained by coal base solid waste composition granule added in this example
Magnesium alloy in the solid waste of base containing coal mass fraction be 2%, the material mixture ratio of the magnesium alloy of Icosahedral phases is mass fraction
3.5%Zn, 0.5%Y and 96%Mg.
The first step, the addition of coal base solid waste：Magnesium alloy is put into graphite crucible first, after graphite crucible is put
Enter in resistance furnace, heating is melted, while is passed through protection gas, to prevent magnesium from aoxidizing or burning at high temperature.When magnesium alloy is complete
When portion melts, load weighted zinc granule is added, is incubated 30min, then adds load weighted magnesium yttrium intermediate alloy, is incubated 30min.So
Afterwards by the semi-solid temperature section of the temperature adjustment of resistance furnace to magnesium alloy, when in-furnace temperature stabilization is to semi-solid temperature, stand
Skim, and the agitating paddle heated is put into specified location, carry out mechanical agitation, stir speed (S.S.) 1200rpm；Treat in melt
After forming vortex, preheated coal base solid waste composition granule 10g is added, mechanical agitation 2min, in whipping process, coal base solid
With magnesium alloy chemical heat release occurs for discarded composition granule, and melt is thinning, now reduces resistance furnace design temperature, meanwhile, carry out
Ultrasonic vibration, ultrasonic vibration frequency is 20kHz, processing time 15min；After the completion of supersound process, resistance furnace is adjusted again
To semi-solid temperature, 10g coal base solid waste composition granules are continuously added after temperature stabilization, so repeat multiple mechanical agitation
After adding ultrasonic wave added, last time to add coal base solid waste composition granule progress mechanical agitation 2min, heat up 50 DEG C, ultrasonic vibration
After 10min, pour into preheated（250℃）Casting die in cast to obtain as cast condition coal base solid waste+Icosahedral phases and mixed
The magnesium alloy of miscellaneous enhancing.
Second step, the extruding of constant temperature Ultra-Low Speed：The as cast condition coal base solid of the mass fraction 2% of the solid waste of base containing coal is given up
The magnesium alloy of gurry+Icosahedral phases hybrid buildup is cut into the sample that size is 40 × 50mm of φ, is put into 250 DEG C of resistance furnace and is incubated
30min, then put it into the mould that preheating temperature is 250 DEG C and extruded, is squeezed into 0.01mm/s extrusion speed
Type.
As cast condition coal base solid waste+standard of the mass fraction 2% of the solid waste of base containing coal obtained by the first step of the present invention
100 times of optical microstructures of the magnesium alloy of crystalline phase hybrid buildup according to Fig. 1 as shown in figure 1, can be seen that coal base solid waste
Particle is well dispersed；Fig. 3 is the scanning tissue picture after the extruding of second step constant temperature Ultra-Low Speed, according to Fig. 3 it can be seen that magnesium
Alloy substrate is more homogeneous, and coal base solid waste particle size is about 5 μm, and microcosmic upper distribution of particles is visibly homogeneous.
The product obtained at room temperature to each step of this example carries out performance test, and it is bent to obtain engineering stress-engineering strain
Line chart, as shown in figure 5, the mass fraction of the solid waste of base containing coal prepared by this example first step is 2% as shown in Figure 5
The tensile strength of the magnesium alloy of as cast condition coal base solid waste+Icosahedral phases hybrid buildup is 111MPa, elongation percentage 3.0%；Pass through
Fig. 5 understands the fine grain coal base solid waste that the mass fraction that this example second step finally prepares the solid waste of base containing coal is 2%
The tensile strength of the magnesium alloy of+Icosahedral phases hybrid buildup is 264MPa, elongation percentage 8.2%.
Example 2：
The fine grain coal base solid waste+Icosahedral phases hybrid buildup obtained by coal base solid waste composition granule added in this example
Magnesium alloy in the solid waste of base containing coal mass fraction be 5%, the material mixture ratio of the magnesium alloy of Icosahedral phases is mass fraction
3.5%Zn, 0.5%Y and 96%Mg.
The first step, the addition of coal base solid waste：Magnesium alloy is put into graphite crucible first, after graphite crucible is put
Enter in resistance furnace, heating is melted, while is passed through protection gas, to prevent magnesium from aoxidizing or burning at high temperature.When magnesium alloy is complete
When portion melts, load weighted zinc granule is added, is incubated 30min, then adds load weighted magnesium yttrium intermediate alloy, is incubated 30min.So
Afterwards by the semi-solid temperature section of the temperature adjustment of resistance furnace to magnesium alloy, when in-furnace temperature stabilization is to semi-solid temperature, stand
Skim, and the agitating paddle heated is put into specified location, carry out mechanical agitation, stir speed (S.S.) 1200rpm；Treat in melt
After forming vortex, preheated coal base solid waste composition granule 10g is added, mechanical agitation 2min, in whipping process, coal base solid
With magnesium alloy chemical heat release occurs for discarded composition granule, and melt is thinning, now reduces resistance furnace design temperature, meanwhile, carry out
Ultrasonic vibration, ultrasonic vibration frequency is 20kHz, processing time 15min；After the completion of supersound process, resistance furnace is adjusted again
To semi-solid temperature, 10g coal base solid waste composition granules are continuously added after temperature stabilization, so repeat multiple mechanical agitation
After adding ultrasonic wave added, last time to add coal base solid waste composition granule progress mechanical agitation 2min, heat up 50 DEG C, ultrasonic vibration
After 10min, pour into preheated（250℃）Casting die in cast to obtain as cast condition coal base solid waste+Icosahedral phases and mixed
The magnesium alloy of miscellaneous enhancing.
Second step, the extruding of constant temperature Ultra-Low Speed：By by the as cast condition coal base solid of the mass fraction 5% of the solid waste of base containing coal
The magnesium alloy of discarded object+Icosahedral phases hybrid buildup is cut into the sample that size is 40 × 50mm of φ, is put into 250 DEG C of resistance furnace and protects
Warm 30min, then put it into the mould that preheating temperature is 250 DEG C and extruded, extruded with 0.01mm/s extrusion speed
Shaping.
As cast condition coal base solid waste+Icosahedral phases of the mass fraction 5% of the solid waste of base containing coal of gained of the invention mix
100 times of optical microstructures of the magnesium alloy of miscellaneous enhancing according to Fig. 2 as shown in Fig. 2 can be seen that coal base solid waste composition granule point
Dissipate preferable；Fig. 4 is the scanning tissue picture after second step low temperature at a slow speed extrusion forming, according to Fig. 4 it can be seen that magnesium alloy
Matrix is more homogeneous, and coal base solid waste particle size is about 5 μm, and microcosmic upper distribution of particles is visibly homogeneous.
The product obtained at room temperature to 2 each step of this example carries out performance test, and it is bent to obtain engineering stress-engineering strain
Line chart, as shown in fig. 6, the mass fraction of the solid waste of base containing coal prepared by this example first step is 5% as shown in Figure 6
The tensile strength of the magnesium alloy of as cast condition coal base solid waste+Icosahedral phases hybrid buildup is 82MPa, elongation percentage 1.5%；Pass through
Fig. 6 understands that the mass fraction for the solid waste of base containing coal that this example second step is finally prepared is 5% fine grain coal base solid waste
The magnesium alloy tensile strength of thing+Icosahedral phases hybrid buildup is 261MPa, elongation percentage 5.8%.
Claims (9)
1. coal base solid waste is used for the application for strengthening the magnesium alloy of Icosahedral phases enhancing.
2. application according to claim 1, it is characterised in that：The particle size of the coal base solid waste is 5 ~ 10 μ
m。
3. application according to claim 1, it is characterised in that：The material mixture ratio of the magnesium alloy of the Icosahedral phases enhancing is matter
It is 3.5%Zn, 0.5%Y and 96%Mg to measure fraction.
A kind of 4. method of the magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing, it is characterised in that：Comprise the following steps：
The first step, the addition of coal base solid waste；The coal base solid waste point screened is added to several times first and carried
Before prepare Icosahedral phases enhancing magnesium alloy fused mass in, every time add after carry out mechanical agitation first, then in magnesium alloy
Melt carries out ultrasonic activation during cooling, last time adds coal base solid waste and carries out mechanical agitation and ultrasonic wave
After vibration, the magnesium alloy for adding the Icosahedral phases enhancing for having coal base solid waste is heated up 50 DEG C, insulation 30min is poured into later
In preheated casting die, the magnesium alloy of as cast condition coal base solid waste+Icosahedral phases hybrid buildup is obtained；
Second step, the extruding of constant temperature Ultra-Low Speed；The magnesium that the first step is obtained to as cast condition coal base solid waste+Icosahedral phases hybrid buildup closes
Gold is placed in extrusion die progress constant temperature Ultra-Low Speed extruding, and extrusion temperature is 240 ~ 280 DEG C, and extrusion speed is 0.005 ~
0.015mm/s；The magnesium alloy of fine grain coal base solid waste+Icosahedral phases hybrid buildup is obtained after extruding.
5. a kind of method of the magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing according to claim 4, it is special
Sign is：In the first step, the particle size of the coal base solid waste of addition is 5 ~ 10 μm.
6. a kind of method of the magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing according to claim 4, it is special
Sign is：In the first step, the material mixture ratio of the magnesium alloy of the Icosahedral phases enhancing prepared in advance is that mass fraction is 3.5%
Zn, 0.5%Y and 96%Mg.
7. a kind of magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing according to claim 4-6 any one
Method, it is characterised in that：Mechanical agitation speed is 500 ~ 1200rpm in the first step, resulting as cast condition coal base solid in the first step
The mass fraction of magnesium alloy base containing the coal solid waste of discarded object+Icosahedral phases hybrid buildup is 2 ~ 5%.
8. a kind of method of the magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing according to claim 7, it is special
Sign is：In the first step, the time that magnesium alloy is in melt state ultrasonic vibration is 15 ~ 25min, ultrasonic in process of setting
The time of vibration is 5 ~ 10min.
9. a kind of method of the magnesium alloy of coal base solid waste enhancing Icosahedral phases enhancing according to claim 7, it is special
Sign is：In second step, the magnesium alloy of the as cast condition coal base solid waste+Icosahedral phases hybrid buildup heat time in extrusion die
For 30 ~ 45min, extrusion temperature is 250 DEG C, extruding rate 0.01mm/s.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000186616A (en) * | 1998-12-21 | 2000-07-04 | Aisin Seiki Co Ltd | Piston for internal combustion engine |
| WO2002083964A1 (en) * | 2001-04-11 | 2002-10-24 | Yonsei University | Quasi-crystalline phase hardened magnesium alloy with excellent hot formability and method for preparing the same |
| JP2005113235A (en) * | 2003-10-09 | 2005-04-28 | Toyota Motor Corp | High strength magnesium alloy, and its production method |
| CN1789458A (en) * | 2005-12-12 | 2006-06-21 | 西安理工大学 | In-situ synthesizing quasi-crystal and approximate phase reinforced high-strength ultra-tough magnesium alloy and preparation method thereof |
| CN1940375A (en) * | 2006-07-21 | 2007-04-04 | 吉林大学 | Composite antiknocking material and its production |
| CN105238977A (en) * | 2015-11-06 | 2016-01-13 | 中国石油大学(华东) | High-damping magnesium alloy composite material and preparation method thereof |
-
2017
- 2017-10-25 CN CN201711004489.XA patent/CN107760892B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000186616A (en) * | 1998-12-21 | 2000-07-04 | Aisin Seiki Co Ltd | Piston for internal combustion engine |
| WO2002083964A1 (en) * | 2001-04-11 | 2002-10-24 | Yonsei University | Quasi-crystalline phase hardened magnesium alloy with excellent hot formability and method for preparing the same |
| JP2005113235A (en) * | 2003-10-09 | 2005-04-28 | Toyota Motor Corp | High strength magnesium alloy, and its production method |
| CN1789458A (en) * | 2005-12-12 | 2006-06-21 | 西安理工大学 | In-situ synthesizing quasi-crystal and approximate phase reinforced high-strength ultra-tough magnesium alloy and preparation method thereof |
| CN1940375A (en) * | 2006-07-21 | 2007-04-04 | 吉林大学 | Composite antiknocking material and its production |
| CN105238977A (en) * | 2015-11-06 | 2016-01-13 | 中国石油大学(华东) | High-damping magnesium alloy composite material and preparation method thereof |
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