CN107904428A - A kind of magnesium alloy refiner of graphene-containing and preparation method thereof - Google Patents
A kind of magnesium alloy refiner of graphene-containing and preparation method thereof Download PDFInfo
- Publication number
- CN107904428A CN107904428A CN201711211363.XA CN201711211363A CN107904428A CN 107904428 A CN107904428 A CN 107904428A CN 201711211363 A CN201711211363 A CN 201711211363A CN 107904428 A CN107904428 A CN 107904428A
- Authority
- CN
- China
- Prior art keywords
- graphene
- magnesium alloy
- preparation
- refiner
- graphite
- 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.)
- Granted
Links
Classifications
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
- C22C1/02—Making non-ferrous alloys by melting
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Powder Metallurgy (AREA)
Abstract
A kind of magnesium alloy refiner of graphene-containing and preparation method thereof, is related to grain refiner technical field.The present invention solves the problems, such as that existing magnesium alloy refiner easily occurs that metamorphic reaction, thinning effect be single and restricted application with matrix.Preparation method：High-temperature quick reduction will be carried out with the graphite oxide of certain lamella size and oxygen content, realize the stripping of graphite flake layer, by being ultrasonically treated in alcohol solvent, obtain graphene dispersing solution, uniformly mixed with metal dust immediately, suction filtration is passed sequentially through, is dried in vacuo and removes solvent, preheats composite powder and the extruding of gained, that is, obtains the magnesium alloy refiner of graphene-containing.The magnesium alloy refiner of the graphene-containing of the present invention, utilize position the defects of graphene and the effect of heterogeneous forming core, realize efficient, classification Refining Mg Alloy crystal grain, and graphene can improve the mechanical property of magnesium alloy substrate in itself, the physics stablized at high temperature with graphene, chemical property, the fining agent can be widely applied to magnesium alloy grains.
Description
Technical field
The present invention relates to grain refiner and preparation method thereof, more particularly to a kind of magnesium alloy refiner of graphene-containing and
Its preparation method, belongs to fining agent technical field.
Background technology
Magnesium has high specific strength, specific stiffness height, damping shock absorption as structural metallic materials most light in current engineer application
The characteristics of performance is good；Enjoyed with the increasingly exacerbation and the demand to lightweight product, the research of magnesium and its alloy of environmental pollution
Concern, has broad application prospects in fields such as aerospace, communications and transportation and electronic equipments.However, the solid matter that magnesium has
Six sides (HCP) crystal structure, slip system is less, plastic deformation ability force difference, limits the application of its product.Mg alloy castings crystal grain
Size is larger, the defects of shrinkage porosite, hot tearing are also easy to produce in process of setting, causes its mechanical properties decrease.Tiny crystal grain can be reduced
Fault of construction, helps to improve the corrosion resistance and plastic deformation ability of magnesium alloy.Therefore, magnesium is extended by crystal grain thinning
The practical ranges of alloy are necessary.
Addition fining agent is that crystal grain thinning is most direct, effective method in the magnesium alloy.In liquid alloy cooling procedure,
Fining agent provides nucleus for the aluminium alloy just in crystallization and freezing, and substantial amounts of nucleus causes crystallite dimension to be refined, so as to improve
The comprehensive performance of alloy.Current fining agent technology mainly has：(1) carbon containing dose of rotten method：It is chiefly used in the crystal grain of Mg-Al systems alloy
Refinement, using MgCO3、C2Cl6、CCl6And CaC2Deng the carbon in fining agent forms the Al of a large amount of disperses with Al in the solution4C3Matter
Point, usually requires that the content of Aluminum in Alloy more than 0.5%, while Be, Ti etc. have crystal grain thinning the element of inhibitory action should
Control be free of or a small amount of scope in；(2) boronation system alloy modification method：For Magnesium-aluminum alloys, formed using Ti, Al and B
Second phase TiB2And AlB2, its lattice constant is close with α-Mg, can be used as heterogeneous nuclei crystal grain thinning, but requires adding for fining agent
Enter amount no more than 0.3%；(3) refining effect of the rare earth element to magnesium alloy：Existed by rare earth element (such as Ce, Nd and La)
In the soluterich of solid liquid interface in process of setting, it was beneficial to cold-zone equiax crystal forming core, and hindered matrix alloy crystal grain to grow up and promote
Into crystal grain refinement, but this fining agent causes the cost of alloy melting to greatly improve；(4) containing zirconium (Zr) element intermediate alloy
Grain refiner：Using solubility very littles of the Zr in liquid magnesium, Zr and Mg does not form compound when peritectic reaction occurs, and disperses
Zr cores become the crystallization nuclei of α-Mg, easily react to form compound with Al elements yet with Zr, containing closing among Zr
Gold cannot function as the fining agent of aluminium-containing alloy, be of limited application.
Therefore, efficient and applied widely magnesium alloy refiner is developed, is current magnesium alloy grains technology
Research emphasis.
The content of the invention
The technical purpose of the present invention is that easily metamorphic reaction occurs with matrix for existing magnesium alloy refiner, refinement is imitated in order to solve
Fruit is single and the problem of restricted application, there is provided and a kind of magnesium alloy refiner of graphene-containing and preparation method thereof is described thin
Agent is acted on using graphene sheet layer defective bit and heterogeneous forming core, and efficient, classification can be carried out to magnesium alloy crystal grain and is refined, while stone
Black alkene can improve the mechanical property of magnesium alloy substrate in itself.This method regulates and controls the lamella of graphene by series of process flow
Size and defect bit quantity, between graphene uniform is dispersed in metal dust, obtain the magnesium alloy refiner of graphene-containing, realize
Crystallite dimension optimizes the comprehensive performance of magnesium alloy, in aerospace, electronics, automobile etc. pair by micron order to nano level refinement
The field that magnesium alloy has demand has broad application prospects.
Preparation method step of the present invention is：(1) the high-temperature quick reduction of graphite oxide and limellar stripping；(2)
Graphene and metal dust it is compound；(3) the pre- hot extrusion of composite powder.Specific steps and preferred processing condition are as follows：
(1) the high-temperature quick reduction of graphite oxide and limellar stripping
The graphite oxide with lamella size (preferably 5-200 μm) and oxygen content (preferably 5-50wt.%) is placed in ceramics
In crucible, the ratio of graphite oxide quality and ceramic crucible volume is preferably 0.001-0.05g ml-1, after capping binding, quickly
It is placed in the high temperature furnace for being preheated to 800-1200 DEG C, then takes out crucible (i.e. in high temperature within the short time (preferably 10-60s)
Standing time is 10-60s in stove) and natural cooling, obtain the graphite powder of limellar stripping；
(2) graphene and metal dust is compound
The graphite powder of limellar stripping obtained by step (1) is scattered in alcohol solvent (the preferred 0.004-0.4g ml of concentration-1)
In, ultrasonic disperse, the ultrasonic disperse 10-60min preferably under power 100-1000W, obtains graphene dispersing solution, with i.e. by metal
Powder, which is added in dispersion liquid, is sufficiently mixed stirring, and preferably metal dust and graphene mass ratio are (20-1000):1, pass through successively
(preferably 2-20min), vacuum drying (temperature is 25-85 DEG C, time 6-24h) are filtered when too short, it is multiple to obtain graphene/metal
Close powder.
(3) the pre- hot extrusion of composite powder
It is preferred that the composite powder obtained by step (2) is preheated to 250-550 DEG C, after preferably being extruded using extrusion ratio as 10-30
Obtain the magnesium alloy refiner of bar, i.e. graphene-containing.
One kind in the preferably pure magnesium of above-mentioned metal dust, magnesium alloy, magnesium element content is more than in the pure magnesium
99.0wt.%, the magnesium alloy are preferably Mg-Al, Mg-Zn or Mg-RE system magnesium alloy.
The magnesium alloy refiner of graphene-containing provided by the invention has the advantages that notable, and the fining agent is by regulating and controlling graphite
The lamella size and fault of construction of alkene, it can be achieved that to magnesium alloy crystal grain efficiently, the refining effect of classification, while graphene in itself may be used
Mechanics humidification is played to magnesium alloy substrate, physics that graphene is stablized at high temperature, chemical property cause the fining agent
With wide applicability, it is of great significance to improving Properties of Magnesium Alloy and extending its practical ranges.
Brief description of the drawings
Fig. 1 is the ZK60 alloy microstructure light micrographs without refinement in embodiment 3.
Fig. 2 is the ZK60 alloy microstructure optical microphotographs after the magnesium alloy refiner refinement of graphene-containing in embodiment 3
Photo.
Fig. 3 is the ZK60 alloy microstructure optical microphotographs after the magnesium alloy refiner refinement of graphene-containing in embodiment 4
Photo.
Fig. 4 is the ZK60 alloy transmission electron microscope photos after the magnesium alloy refiner refinement of graphene-containing in embodiment 5.
Embodiment
The present invention is further illustrated with reference to specific embodiment, it should be pointed out that following embodiments are served only for
Bright specific implementation method of the invention, can not limit rights protection scope of the present invention.
Embodiment 1：
The preparation process of the magnesium alloy refiner of the graphene-containing of present embodiment carries out according to the following steps：
(1) graphite oxide of 200 μm of lamella size and oxygen content 5wt.% is placed in ceramic crucible, graphite oxide quality
Ratio with ceramic crucible volume is 0.05g ml-1, after capping binding, it is quickly placed into and is preheated in 800 DEG C of high temperature furnace, then
Crucible is taken out into simultaneously natural cooling in 60s, obtains the graphite powder of limellar stripping.
(2) graphite powder of the limellar stripping obtained by step (1) is scattered in alcohol solvent (0.004g ml-1) in, in power
Ultrasonic disperse 10min under 1000W, obtains graphene dispersing solution, with will with graphene mass ratio be 20:1 AZ31 magnesium alloys
Powder, which is added in dispersion liquid, is sufficiently mixed stirring, is filtered successively by 20min, is dried in vacuo that (temperature is 85 DEG C, the time is
6h), graphene/AZ31 composite powders are obtained.
(3) composite powder obtained by step (2) is preheated to 250 DEG C, obtains bar after being extruded using extrusion ratio as 30, that is, contain
The magnesium alloy refiner of graphene.
Gained fining agent is added in Mg-Al systems alloy AZ31 melts, crystal grain refinement is obtained after agitated casting
AZ31 alloys.
Embodiment 2：
The preparation process of the magnesium alloy refiner of the graphene-containing of present embodiment carries out according to the following steps：
(1) graphite oxide of 100 μm of lamella size and oxygen content 10wt.% is placed in ceramic crucible, graphite oxide matter
Amount and the ratio of ceramic crucible volume are 0.02g ml-1, after capping binding, it is quickly placed into and is preheated in 900 DEG C of high temperature furnace, with
Crucible is taken out into simultaneously natural cooling in 50s afterwards, obtains the graphite powder of limellar stripping.
(2) graphite powder of the limellar stripping obtained by step (1) is scattered in alcohol solvent (0.01g ml-1) in, in power
Ultrasonic disperse 20min under 800W, obtains graphene dispersing solution, with will with graphene mass ratio be 100:1 pure magnesium dust adds
Enter and stirring is sufficiently mixed into dispersion liquid, filtered successively by 15min, be dried in vacuo (temperature is 65 DEG C, time 12h), obtained
To graphene/pure magnesium composite powder.
(3) composite powder obtained by step (2) is preheated to 300 DEG C, obtains bar after being extruded using extrusion ratio as 20, that is, contain
The magnesium alloy refiner of graphene.
Gained fining agent is added in Mg-RE systems alloy Mg-Gd-Er-Zr melts, it is thin that crystal grain is obtained after agitated casting
The Mg-Gd-Er-Zr alloys of change.
Embodiment 3：
The preparation process of the magnesium alloy refiner of the graphene-containing of present embodiment carries out according to the following steps：
(1) graphite oxide of 50 μm of lamella size and oxygen content 20wt.% is placed in ceramic crucible, graphite oxide quality
Ratio with ceramic crucible volume is 0.01g ml-1, after capping binding, it is quickly placed into and is preheated in 1000 DEG C of high temperature furnace, with
Crucible is taken out into simultaneously natural cooling in 40s afterwards, obtains the graphite powder of limellar stripping.
(2) graphite powder of the limellar stripping obtained by step (1) is scattered in alcohol solvent (0.05g ml-1) in, in power
Ultrasonic disperse 30min under 500W, obtains graphene dispersing solution, with will with graphene mass ratio be 500:1 pure magnesium dust adds
Enter and stirring is sufficiently mixed into dispersion liquid, filtered successively by 10min, be dried in vacuo (temperature is 45 DEG C, time 18h), obtained
To graphene/pure magnesium composite powder.
(3) composite powder obtained by step (2) is preheated to 400 DEG C, obtains bar after being extruded using extrusion ratio as 20, that is, contain
The magnesium alloy refiner of graphene.
Gained fining agent is added in Mg-Zn systems alloy ZK60 melts with 0.1wt.% mass fractions, agitated casting
(average grain size not refined is about 85 μm to the ZK60 alloys of acquisition crystal grain refinement, such as Fig. 1 afterwards；Average crystal grain after refinement
Size is about 40 μm, such as Fig. 2).
Embodiment 4：
The preparation process of the magnesium alloy refiner of the graphene-containing of present embodiment carries out according to the following steps：
(1) graphite oxide of 20 μm of lamella size and oxygen content 30wt.% is placed in ceramic crucible, graphite oxide quality
Ratio with ceramic crucible volume is 0.005g ml-1, after capping binding, it is quickly placed into and is preheated in 1100 DEG C of high temperature furnace, with
Crucible is taken out into simultaneously natural cooling in 30s afterwards, obtains the graphite powder of limellar stripping.
(2) graphite powder of the limellar stripping obtained by step (1) is scattered in alcohol solvent (0.1g ml-1) in, in power
Ultrasonic disperse 50min under 300W, obtains graphene dispersing solution, with will with graphene mass ratio be 800:1 ZK60 magnesium alloys
Powder, which is added in dispersion liquid, is sufficiently mixed stirring, is filtered successively by 5min, is dried in vacuo that (temperature is 35 DEG C, the time is
20h), graphene/ZK60 alloy composite powders are obtained.
(3) composite powder obtained by step (2) is preheated to 500 DEG C, obtains bar after being extruded using extrusion ratio as 20, that is, contain
The magnesium alloy refiner of graphene.
Gained fining agent is added in Mg-Zn systems alloy ZK60 melts with 0.5wt.% mass fractions, agitated casting
Obtain the ZK60 alloys of crystal grain refinement afterwards (average grain size after refinement is about 32 μm, such as Fig. 3).
Embodiment 5：
The preparation process of the magnesium alloy refiner of the graphene-containing of present embodiment carries out according to the following steps：
(1) graphite oxide of 10 μm of lamella size and oxygen content 50wt.% is placed in ceramic crucible, graphite oxide quality
Ratio with ceramic crucible volume is 0.001g ml-1, after capping binding, it is quickly placed into and is preheated in 1200 DEG C of high temperature furnace, with
Crucible is taken out into simultaneously natural cooling in 10s afterwards, obtains the graphite powder of limellar stripping.
(2) graphite powder of the limellar stripping obtained by step (1) is scattered in alcohol solvent (0.4g ml-1) in, in power
Ultrasonic disperse 60min under 100W, obtains graphene dispersing solution, with will with graphene mass ratio be 1000:1 pure magnesium dust adds
Enter and stirring is sufficiently mixed into dispersion liquid, filtered successively by 2min, be dried in vacuo (temperature is 25 DEG C, time 24h), obtained
Graphene/pure magnesium composite powder.
(3) composite powder obtained by step (2) is preheated to 550 DEG C, obtains bar after being extruded using extrusion ratio as 10, that is, contain
The magnesium alloy refiner of graphene.
Gained fining agent is added in Mg-Zn systems alloy ZK60 melts with 1wt.% mass fractions, after agitated casting
Obtain the ZK60 alloys of crystal grain refinement (average grain size after refinement is about 100nm, such as Fig. 4).
Although listing in detail here and illustrating preferred embodiment, it will be appreciated by those skilled in the art that can not take off
Various improvement, addition are carried out in the case of from marrow of the present invention, is replaced etc., these contents are considered to be within claim and are limited
Within fixed the scope of the present invention.
Claims (10)
1. a kind of preparation method of the magnesium alloy refiner of graphene-containing, it is characterised in that comprise the following steps：
(1) the high-temperature quick reduction of graphite oxide and limellar stripping
Graphite oxide with certain lamella size is placed in ceramic crucible, after capping binding, is quickly placed into and is preheated to 800-
In 1200 DEG C of high temperature furnace, crucible is then taken out into simultaneously natural cooling in a short time, obtains the graphite powder of limellar stripping；
(2) graphene and metal dust is compound
The graphite powder of limellar stripping obtained by step (1) is scattered in alcohol solvent, disperses under ultrasound condition, obtains graphite
Alkene dispersion liquid, stirring is sufficiently mixed with metal dust is added in dispersion liquid, successively by filtering, being dried in vacuo in short-term,
Obtain graphene/composite metal powder；
(3) the pre- hot extrusion of composite powder
Composite powder obtained by step (2) is preheated, the magnesium alloy refiner of bar, i.e. graphene-containing is obtained after extruding；It is above-mentioned
The preferably pure magnesium of metal dust, one kind in magnesium alloy.
A kind of 2. preparation method of the magnesium alloy refiner of graphene-containing described in accordance with the claim 1, it is characterised in that oxidation
The lamella size of graphite is 5-200 μm and oxygen content is 5-50wt.%.
A kind of 3. preparation method of the magnesium alloy refiner of graphene-containing described in accordance with the claim 1, it is characterised in that oxidation
The ratio of graphite quality and ceramic crucible volume is 0.001-0.05g ml-1。
A kind of 4. preparation method of the magnesium alloy refiner of graphene-containing described in accordance with the claim 1, it is characterised in that step
(1) in high temperature furnace standing time be 10-60s after crucible is taken out.
A kind of 5. preparation method of the magnesium alloy refiner of graphene-containing described in accordance with the claim 1, it is characterised in that graphite
The concentration of alkene dispersion liquid is 0.004-0.4g ml-1。
A kind of 6. preparation method of the magnesium alloy refiner of graphene-containing described in accordance with the claim 1, it is characterised in that metal
Powder and graphene mass ratio are (20-1000):1.
A kind of 7. preparation method of the magnesium alloy refiner of graphene-containing described in accordance with the claim 1, it is characterised in that step
(2) the ultrasonic disperse 10-60min under power 100-1000W；Step (2) filters 2-20min, vacuum drying temperature 25- in short-term
85 DEG C, time 6-24h.
A kind of 8. preparation method of the magnesium alloy refiner of graphene-containing described in accordance with the claim 1, it is characterised in that step
(3) composite powder is preheated to 250-550 DEG C, extrusion ratio 10-30.
A kind of 9. preparation method of the magnesium alloy refiner of graphene-containing described in accordance with the claim 1, it is characterised in that pure magnesium
Middle magnesium element content is more than 99.0wt.%；The magnesium alloy is Mg-Al, Mg-Zn or Mg-RE system magnesium alloy.
10. the magnesium alloy refiner for the graphene-containing being prepared according to any one of claim 1-9 preparation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711211363.XA CN107904428B (en) | 2017-11-28 | 2017-11-28 | Graphene-containing magnesium alloy refiner and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711211363.XA CN107904428B (en) | 2017-11-28 | 2017-11-28 | Graphene-containing magnesium alloy refiner and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107904428A true CN107904428A (en) | 2018-04-13 |
| CN107904428B CN107904428B (en) | 2020-04-14 |
Family
ID=61849132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711211363.XA Active CN107904428B (en) | 2017-11-28 | 2017-11-28 | Graphene-containing magnesium alloy refiner and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107904428B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554573A (en) * | 2019-01-18 | 2019-04-02 | 哈尔滨工业大学 | A kind of magnesium alloy preparation method of containing graphene fining agent and application |
| CN112143929A (en) * | 2020-08-07 | 2020-12-29 | 百色学院 | Graphene-loaded grain refining material of Al-Mg alloy wire and preparation method thereof |
| CN113088742A (en) * | 2021-02-20 | 2021-07-09 | 南昌大学 | Preparation method of modifier and graphene composite refined magnesium alloy semi-solid structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1471156A1 (en) * | 2003-04-23 | 2004-10-27 | Tetsuichi Motegi | Method for grain refinement of magnesium alloy castings |
| CN105624457A (en) * | 2016-03-22 | 2016-06-01 | 北京工业大学 | Graphene enhanced magnesium-based composite and preparing method thereof |
| CN105624446A (en) * | 2016-03-22 | 2016-06-01 | 北京工业大学 | Graphene-reinforced magnesium-aluminium matrix composite material and preparation method thereof |
| CN107058786A (en) * | 2017-04-19 | 2017-08-18 | 哈尔滨理工大学 | A kind of preparation method of magnesium-based graphene composite material |
-
2017
- 2017-11-28 CN CN201711211363.XA patent/CN107904428B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1471156A1 (en) * | 2003-04-23 | 2004-10-27 | Tetsuichi Motegi | Method for grain refinement of magnesium alloy castings |
| CN105624457A (en) * | 2016-03-22 | 2016-06-01 | 北京工业大学 | Graphene enhanced magnesium-based composite and preparing method thereof |
| CN105624446A (en) * | 2016-03-22 | 2016-06-01 | 北京工业大学 | Graphene-reinforced magnesium-aluminium matrix composite material and preparation method thereof |
| CN107058786A (en) * | 2017-04-19 | 2017-08-18 | 哈尔滨理工大学 | A kind of preparation method of magnesium-based graphene composite material |
Non-Patent Citations (1)
| Title |
|---|
| 胡桢等: "《新型高分子合成与制备工艺》", 31 May 2014, 哈尔滨工业大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554573A (en) * | 2019-01-18 | 2019-04-02 | 哈尔滨工业大学 | A kind of magnesium alloy preparation method of containing graphene fining agent and application |
| CN109554573B (en) * | 2019-01-18 | 2021-05-04 | 哈尔滨工业大学 | Preparation method and application of magnesium alloy containing graphene refiner |
| CN112143929A (en) * | 2020-08-07 | 2020-12-29 | 百色学院 | Graphene-loaded grain refining material of Al-Mg alloy wire and preparation method thereof |
| CN113088742A (en) * | 2021-02-20 | 2021-07-09 | 南昌大学 | Preparation method of modifier and graphene composite refined magnesium alloy semi-solid structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107904428B (en) | 2020-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105624446A (en) | Graphene-reinforced magnesium-aluminium matrix composite material and preparation method thereof | |
| CN108396168B (en) | A kind of preparation method of high-strength highly-conductive creep resistant graphene enhancing aluminum alloy materials | |
| CN107904428A (en) | A kind of magnesium alloy refiner of graphene-containing and preparation method thereof | |
| CN103831422B (en) | A kind of nanometer thinning method of Al-Si line aluminium alloy tissue | |
| CN111206166B (en) | Preparation method of in-situ ternary nanoparticle reinforced aluminum matrix composite | |
| CN108838401B (en) | Method for preparing graphene reinforced magnesium-based composite material based on powder thixoforming | |
| CN109609814B (en) | High-strength aluminum alloy with high elastic modulus mixed with double-scale ceramic particles and preparation method thereof | |
| KR20200088454A (en) | High thermal conductivity aluminum alloy and its manufacturing method | |
| CN104593652A (en) | Quasicrystal and alumina mixed particle reinforced magnesium-based composite material and manufacturing method thereof | |
| Zhao et al. | Fabrication of magnesium-coated graphene and its effect on the microstructure of reinforced AZ91 magnesium-matrix composites | |
| CN110106411B (en) | Method for preparing high-content carbon nanotube reinforced magnesium-based composite material by adopting precursor | |
| CN107904431A (en) | A kind of graphene Al-alloy, preparation method, purposes and include its engine | |
| CN113549790A (en) | High-performance Al-Ti-V-B alloy refiner and preparation method and application thereof | |
| CN1195088C (en) | Reaction and ball grinding process to prepare in-situ reinforced Mg-based composite material | |
| CN114672686B (en) | Preparation method of additional nano-particle reinforced cast aluminum-lithium alloy | |
| CN114262811A (en) | Method for improving magnesium alloy refining effect of Mg-Zr intermediate alloy | |
| Ji et al. | Influence of characteristic parameters of SiC reinforcements on mechanical properties of AlSi10Mg matrix composites by powder metallurgy | |
| CN113373355A (en) | Multi-scale particle modified 7000 series alloy wire and preparation method thereof | |
| Lin et al. | Gaining strength-ductility combination in Al matrix composites with in-situ synthesized three-dimensional nanocarbon network | |
| Xiao et al. | Design of newly effective grain refiner for aluminum based on medium-entropy metal diboride | |
| CN113444911A (en) | High-strength high-toughness Al-Mg- (Al-Ti-Nb-B) alloy and preparation method thereof | |
| CN102534311A (en) | Aluminium calcium carbon grain refiner for Mg-Al series magnesium alloy and preparation method and application thereof | |
| CN1203201C (en) | Prepn process of Mg-based composite material | |
| CN112453386A (en) | Graphene aluminum-based composite material and preparation method thereof | |
| Jin et al. | Microstructure and tensile properties of ZnO-coated magnesium borate whisker reinforced AZ31B composite |
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 |