CN1441074A - Prepn process of Mg-based composite material - Google Patents
Prepn process of Mg-based composite material Download PDFInfo
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- CN1441074A CN1441074A CN 03116167 CN03116167A CN1441074A CN 1441074 A CN1441074 A CN 1441074A CN 03116167 CN03116167 CN 03116167 CN 03116167 A CN03116167 A CN 03116167A CN 1441074 A CN1441074 A CN 1441074A
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- magnesium
- ball milling
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- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000008569 process Effects 0.000 title claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 66
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000000843 powder Substances 0.000 claims abstract description 59
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 57
- 239000011777 magnesium Substances 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 22
- 239000000155 melt Substances 0.000 claims abstract description 9
- 238000011065 in-situ storage Methods 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract 9
- 238000003723 Smelting Methods 0.000 claims abstract 4
- 238000003825 pressing Methods 0.000 claims abstract 2
- 238000000498 ball milling Methods 0.000 claims description 37
- 239000011159 matrix material Substances 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052580 B4C Inorganic materials 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052790 beryllium Inorganic materials 0.000 claims description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052810 boron oxide Inorganic materials 0.000 claims description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 claims 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000003860 storage Methods 0.000 claims 1
- 150000003609 titanium compounds Chemical class 0.000 claims 1
- 150000003755 zirconium compounds Chemical class 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 10
- 239000000758 substrate Substances 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 14
- 238000002156 mixing Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 239000010936 titanium Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 238000002203 pretreatment Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- MOWNZPNSYMGTMD-UHFFFAOYSA-N oxidoboron Chemical compound O=[B] MOWNZPNSYMGTMD-UHFFFAOYSA-N 0.000 description 4
- 229910001051 Magnalium Inorganic materials 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000009702 powder compression Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000001195 anabolic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The preparing process of Mg-base composite material includes the following technological steps: compounding reinforcing phase reaction system powder; ball grinding to activate the reaction system powder, controlling ball grinding time, rotation speed and ball/material ratio to control particle size and stored energy and pressing the powder into prefabricated block; smelting magnesium substrate material; melting the prefabricated block into magnesium melt at proper temperature to produce in-situ reaction and to form reinforcing phase, stirring to disperse the particles homogeneously and performing the melting reaction of the reaction system; and casting the melt after being let stand to form. The reinforcing phase is fine, homogeneously distributed and excellent in interface binding, and the Mg-base composite material has excellent mechanical performance and may be used widely.
Description
Technical field
What the present invention relates to is a kind of technology for preparing magnesium base composite material, and particularly a kind of mechanical ball milling prepares the technology of in-situ particle reinforced magnesium-based composite material, belongs to the material field.
Background technology
The preparation magnesium base composite material mainly is that application adds particle or fiber strengthens at present; its main preparation method has stirring casting, pressure impregnation method, powder metallurgic method etc.; these production technique are more complicated mostly; the cost height; and it is big to add the enhanced granule granularity; the interface is in conjunction with bad, and material mechanical performance is poor.The in-situ preparing matrix material is the new preparation method that development in recent years is got up, and it is tiny that it has the enhanced granule granularity of preparation, and interface junction gets togather, the characteristics that the material over-all properties is high.Also can prepare the magnesium base composite material of high comprehensive performance so utilize in-situ techniques.Mechanical ball milling can be laid in lot of energy in by the powder of ball milling, activation is reduced the required critical energy of chemical reaction in the powdered reaction system by ball-milled powder.People such as Xi Yulin are on " heat processing technique " calendar year 2001 the 5th phase P24～26, deliver " research that powder metallurgic method prepares SiC particle reinforced magnesium base compound material technology and performance " literary composition, this article introduction comes to have prepared the technology of magnesium base composite material with mechanical ball milling mixed magnesium powder and SiC particle.But just with ball milling mix, refinement SiC and magnesium powder particles, prepared matrix material with powder metallurgy process then, the bigger and magnesium matrix of particle is in conjunction with also bad.But the powder systems of utilizing mechanical ball milling to make can not to react in the magnesium melt under the normal condition can take place in the magnesium melt behind the ball milling, and original position is synthesized wild phase.And with mechanical ball milling processing reaction system can by factors such as control ball milling time, rotating speed, ratio of grinding media to material control granular size and energy storage what, and then influence the level of response of reaction system in the magnesium melt.So can the better magnesium base composite material of processability with the mechanical ball milling method.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of technology for preparing magnesium base composite material is provided, make it prepare in-situ particle reinforced magnesium-based composite material by mechanical ball milling, it is tiny that the magnesium base composite material of preparation has a wild phase particle, be evenly distributed, the interface combination is good, the characteristics that material property is good.
The present invention is achieved by the following technical solutions, and processing step of the present invention is as follows:
(1) determines the composition of the alloying element in the matrix material according to the alloy element component of stipulating in the standard magnesium alloy trade mark, and select TiC, ZrC, TiB according to the wettability between matrix and the wild phase
2Or ZrB
2As wild phase, the wild phase granule content is controlled at 2～15%.According to above requirement preparation wild phase reaction system powder.
Reaction system is to contain the compound powder of magnesium base composite material wild phase component and the alloying element powder of magnesium alloy, can select for use the powder more than three kinds or three kinds wherein such as aluminium powder, titanium valve, carbon dust, zirconium powder, boron carbide powder, titanium oxide powder, boron oxide powder, magnesium powder as the reaction system raw material powder, require the design reaction system according to the kind of the wild phase of matrix material and the component content of alloying element, for example select for use the magnalium base then to select for use aluminium powder to make the reaction system powder, select the magnesium zinc-base to select for use zinc powder to make the reaction system powder as matrix as matrix; Select for use the compound of titanium to select titanium valve anabolic reaction system powder for use, select for use the compound of zirconium to make wild phase and then select zirconium powder anabolic reaction system powder for use as wild phase.
(2) adopt mechanical ball milling that the good wild phase reaction system powder of proportioning is carried out activation treatment, control granular size and energy storage by control ball milling time, rotating speed, ratio of grinding media to material, make the reaction system energy storage reach a criticality, but synthetic wild phase does not also react, improve the activity of powdered reaction system, the reaction system powder compression of selecting for use suitable pressure that mechanical ball milling is handled again becomes prefabricated section.
The mechanical ball milling selected parameter is: rotational speed of ball-mill is 250～600r/min, ball milling time 30～1200min, ratio of grinding media to material 5: 1～50: 1.Mechanical ball milling finishes the back and take out powder under protective atmosphere, and the reaction system powder compression of selecting for use suitable pressure that mechanical ball milling is handled becomes blocky prefabricated section, and selecting compacting pressure for use is 5～30MPa, and the dwell time is 30～600s.Reaction system powder compression piece adopts protection of inert gas to deposit.
(3) carry out the melting of magnesium matrix material.In fusion process, add ignition-proof element beryllium, calcium etc. and prevent the melt burning, adopt gas or flux protection in the fusion process respectively.
(4) choose suitable melt temperature, mechanical ball milling reaction system prefabricated powder block is fused in the magnesium melt, make ball-milled powder that reaction in take place in the magnesium melt and form wild phase, relend and help stirring technique to make particles dispersed even, carry out the fusion reaction process of reaction system.
The reaction system prefabricated powder block was at first dried 1～3 hour in 150 ℃～250 ℃ scope, made the prefabricated section thorough drying.The temperature of magnesium melt has very big influence to the fusion and the reaction of reaction system prefabricated powder block, and the too low then fusion of temperature is slow, and reaction can not be carried out, and so not only prolongs the process time, reduces production efficiency, and can not synthesize the wild phase of expection.Temperature too Gao Zehui causes and not only increases the burning of magnesium oxide inclusion, and increased danger, so it is important to choose suitable melt temperature.The melt temperature that the present invention chooses is 740 ℃～800 ℃.Setting under the melt temperature, the reaction system prefabricated powder block is added in the magnesium melt, insulation 10～60min stirs then.Utilize to stir fully carrying out of to promote to react, make to react completely, can promote that particulate fully disperses, particle disperse in magnesium matrix is distributed, prevent that particulate from reuniting again.Also there are bigger influence churning time intensity and time to material, stirring intensity helps particulate to disperse greatly, but also increase the chance that particle collides in melt, increase and reunite, otherwise stirring intensity is little then not obvious to reaction process and particles dispersed effect, so it is very important to the preparation of material to choose suitable stirring velocity; Churning time is short, and particles dispersed is inhomogeneous, and sedimentation phenomenon is obvious, reduces the particulate recovery rate, on the contrary the oversize oxidation that then can increase melt.The mixing speed that the present invention chooses is 200～1000r/min.Churning time is 10～60min.
(5) melt is left standstill the back cast, casting, it is tiny to prepare the wild phase particle, the magnesium base composite material that is evenly distributed.The melt dwell temperature is 700 ℃～800 ℃, and time of repose is 5～20min, and cast can be selected metal mold or sand mold for use.
The present invention has substantive distinguishing features and marked improvement, the present invention utilizes the mechanical ball milling pre-treatment and is aided with stirring, choose suitable ball milling factor, grain volume fraction, melt temperature, it is tiny that churning time has been prepared the wild phase particle, be evenly distributed, the interface is in conjunction with good, and magnesium base composite material with good mechanical performance, for the preparation magnesium base composite material opens up a new way, for magnesium base composite material is laid a good foundation in the widespread use in fields such as space flight and aviation, automobile, computer, network technology.
Embodiment
The present invention adopts mechanical ball milling pretreatment reaction system to prepare in-situ particle enhanced magnesium base composite material, and the wild phase particle in the matrix material is tiny, and is evenly distributed in matrix, and matrix material has the good mechanical performance.Provide following examples in conjunction with content of the present invention:
Embodiment 1 adopts pure magnesium as the original substrate material, with aluminium powder, titanium valve, boron monoxide is divided into reaction system prefabricated section raw material, mechanical ball milling is with rotational speed of ball-mill 250r/min, 5: 1 batch mixing 30min of ratio of grinding media to material, get powder then, pressure with 5MPa is suppressed, pressurize 30s, the reaction system prefabricated section that suppresses 150 ℃ of pre-treatment 1 hour, is put into the reaction system prefabricated section 740 ℃ magnesium melt then, stir behind the insulation 10min, the steel oar stirs with 200r/min, churning time is 10min, leaves standstill the 5min cast behind the stirring 10min, and preparation quality percentage ratio is 5% (TiB
2+ TiC) mix enhanced magnalium based composites.The tensile strength of material is 268MPa, and unit elongation is 1.6%.
Embodiment 2 adopts pure magnesium as the original substrate material, with aluminium powder, titanium valve, carbon dust is divided into reaction system prefabricated section raw material, mechanical ball milling is with rotational speed of ball-mill 400r/min, 20: 1 batch mixings of ratio of grinding media to material 2 hours, get powder then, pressure with 15MPa is suppressed, pressurize 250s, the reaction system prefabricated section that suppresses 200 ℃ of pre-treatment 2 hours, is put into the reaction system prefabricated section 760 ℃ magnesium melt then, stir behind the insulation 40min, the steel oar stirs with 500r/min, churning time is 30min, leaves standstill the 15min cast behind the stirring 30min, and preparation quality percentage ratio is 5% TiC mixing enhanced magnalium based composites.The tensile strength of material is 255MPa, and unit elongation is 2.8%.
Embodiment 3 adopts pure magnesium as the original substrate material, with zinc powder, titanium valve, carbon dust is divided into reaction system prefabricated section raw material, mechanical ball milling is with rotational speed of ball-mill 400r/min, 20: 1 batch mixings of ratio of grinding media to material 2 hours, get powder then, pressure with 15MPa is suppressed, pressurize 250s, the reaction system prefabricated section that suppresses 200 ℃ of pre-treatment 2 hours, is put into the reaction system prefabricated section 760 ℃ magnesium melt then, stir behind the insulation 40min, the steel oar stirs with 500r/min, churning time is 30min, leaves standstill the 15min cast behind the stirring 30min, and preparation quality percentage ratio is 5% TiC mixing enhanced magnesium Zinc-base compounded material.The tensile strength of material is 245MPa, and unit elongation is 2.6%.
Embodiment 4 adopts pure magnesium as the original substrate material, with aluminium powder, zirconium powder, carbon dust is divided into reaction system prefabricated section raw material, mechanical ball milling is with rotational speed of ball-mill 400r/min, 25: 1 batch mixings of ratio of grinding media to material 2 hours, get powder then, pressure with 15MPa is suppressed, pressurize 250s, the reaction system prefabricated section that suppresses 200 ℃ of pre-treatment 2 hours, is put into the reaction system prefabricated section 760 ℃ magnesium melt then, stir behind the insulation 45min, the steel oar stirs with 400r/min, churning time is 30min, leaves standstill the 15min cast behind the stirring 30min, and preparation quality percentage ratio is 5% ZrC mixing enhanced magnesium base composite material.The tensile strength of material is 243MPa, and unit elongation is 2.4%.
Embodiment 5 adopts pure magnesium as the original substrate material, with aluminium powder, titanium valve, boron monoxide is divided into reaction system prefabricated section raw material, mechanical ball milling is with rotational speed of ball-mill 1000r/min, 50: 1 batch mixing 1200min of ratio of grinding media to material, get powder then, pressure with 30MPa is suppressed, pressurize 600s, with 250 ℃ of pre-treatment of reaction system prefabricated section of suppressing 3 hours, then the reaction system prefabricated section is put into 800 ℃ magnesium melt, stir behind the insulation 60min, the steel oar stirs with 1000r/min, churning time is 60min, leaves standstill the 20min cast behind the stirring 60min, and preparation quality percentage ratio is 5% (TiB
2+ TiC) mix the enhanced magnesium base composite material.The tensile strength of material is 225MPa, and unit elongation is 1.4%.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116167 CN1203201C (en) | 2003-04-03 | 2003-04-03 | Prepn process of Mg-based composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116167 CN1203201C (en) | 2003-04-03 | 2003-04-03 | Prepn process of Mg-based composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1441074A true CN1441074A (en) | 2003-09-10 |
| CN1203201C CN1203201C (en) | 2005-05-25 |
Family
ID=27770414
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116167 Expired - Fee Related CN1203201C (en) | 2003-04-03 | 2003-04-03 | Prepn process of Mg-based composite material |
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| CN (1) | CN1203201C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298879C (en) * | 2004-02-19 | 2007-02-07 | 上海交通大学 | Process of preparing composite material with in situ particle inhancing magnesium base |
| CN1327021C (en) * | 2004-07-22 | 2007-07-18 | 同济大学 | Process for preparing magnesium alloy and its composite material |
| CN100425720C (en) * | 2005-03-31 | 2008-10-15 | 鸿富锦精密工业（深圳）有限公司 | Creep resistant magnesium alloy materials |
| CN100432267C (en) * | 2006-09-22 | 2008-11-12 | 中国科学院长春应用化学研究所 | High-strength magnesium based composite material and preparation method thereof |
| CN102787252A (en) * | 2012-08-14 | 2012-11-21 | 大连理工大学 | Method for In Situ Preparation of TiB2 Reinforced Aluminum Matrix Composite |
| CN103464728A (en) * | 2013-08-28 | 2013-12-25 | 西北工业大学 | Magnesium matrix composite forming device and method for forming magnesium matrix composite by device |
| CN105603228A (en) * | 2016-01-28 | 2016-05-25 | 大连理工大学 | Preparation method of in-situ nanoparticle reinforced magnesium-based composite |
| CN105695781A (en) * | 2016-01-28 | 2016-06-22 | 大连理工大学 | Preparation method of high-performance in-situ nanoparticle reinforced magnesium matrix composite |
| WO2021035774A1 (en) * | 2019-08-29 | 2021-03-04 | 东北大学 | Preparation method for lithium-containing magnesium/aluminum-based composite material |
| CN113976841A (en) * | 2021-12-24 | 2022-01-28 | 河北钢研德凯科技有限公司北京分公司 | Protective agent for magnesium alloy melt pouring, magnesium alloy casting and preparation method thereof |
-
2003
- 2003-04-03 CN CN 03116167 patent/CN1203201C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298879C (en) * | 2004-02-19 | 2007-02-07 | 上海交通大学 | Process of preparing composite material with in situ particle inhancing magnesium base |
| CN1327021C (en) * | 2004-07-22 | 2007-07-18 | 同济大学 | Process for preparing magnesium alloy and its composite material |
| CN100425720C (en) * | 2005-03-31 | 2008-10-15 | 鸿富锦精密工业（深圳）有限公司 | Creep resistant magnesium alloy materials |
| CN100432267C (en) * | 2006-09-22 | 2008-11-12 | 中国科学院长春应用化学研究所 | High-strength magnesium based composite material and preparation method thereof |
| CN102787252B (en) * | 2012-08-14 | 2014-05-21 | 大连理工大学 | Method for In Situ Preparation of TiB2 Reinforced Aluminum Matrix Composite |
| CN102787252A (en) * | 2012-08-14 | 2012-11-21 | 大连理工大学 | Method for In Situ Preparation of TiB2 Reinforced Aluminum Matrix Composite |
| CN103464728A (en) * | 2013-08-28 | 2013-12-25 | 西北工业大学 | Magnesium matrix composite forming device and method for forming magnesium matrix composite by device |
| CN105603228A (en) * | 2016-01-28 | 2016-05-25 | 大连理工大学 | Preparation method of in-situ nanoparticle reinforced magnesium-based composite |
| CN105695781A (en) * | 2016-01-28 | 2016-06-22 | 大连理工大学 | Preparation method of high-performance in-situ nanoparticle reinforced magnesium matrix composite |
| CN105603228B (en) * | 2016-01-28 | 2017-08-01 | 大连理工大学 | A kind of preparation method of in-situ nanoparticle reinforced magnesium matrix composite material |
| WO2021035774A1 (en) * | 2019-08-29 | 2021-03-04 | 东北大学 | Preparation method for lithium-containing magnesium/aluminum-based composite material |
| CN113976841A (en) * | 2021-12-24 | 2022-01-28 | 河北钢研德凯科技有限公司北京分公司 | Protective agent for magnesium alloy melt pouring, magnesium alloy casting and preparation method thereof |
| CN113976841B (en) * | 2021-12-24 | 2023-03-21 | 河北钢研德凯科技有限公司北京分公司 | Protective agent for magnesium alloy melt pouring, magnesium alloy casting and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1203201C (en) | 2005-05-25 |
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