CN104046869A - Mg-Li-Si alloy and preparation method thereof - Google Patents
Mg-Li-Si alloy and preparation method thereof Download PDFInfo
- Publication number
- CN104046869A CN104046869A CN201410317233.4A CN201410317233A CN104046869A CN 104046869 A CN104046869 A CN 104046869A CN 201410317233 A CN201410317233 A CN 201410317233A CN 104046869 A CN104046869 A CN 104046869A
- Authority
- CN
- China
- Prior art keywords
- alloy
- melting
- carried out
- magnesium lithium
- magnesium
- 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
Landscapes
- Conductive Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides an Mg-Li-Si alloy and a preparation method thereof. The Mg-Li-Si alloy mainly comprises 7-9wt% of Li, 0.1-3.0wt% of Si, 1-6wt% of Al and the balance of Mg and unavoidable impurities and also comprises 1-5wt% of RE and/or 0.5-2.0wt% of Sr. The ultralight high-strength heat-resistant Mg alloy related to the invention is composed of an alpha phase and a beta phase, and added Si is formed into Mg2Si and (RExSiy) high-melting-point hard phases which are dispersed inside and on interfaces of the alpha phase and the beta phase, so that the high-temperature creep resistance of the alloy is effectively improved. According to the preparation method provided by the invention, Al-Sr, Mg-Si and Mg-Re are added into an Mg alloy melt in an intermediate alloy way by using a solvent-free melting method under the condition that the obtained cast material is processed and subjected to heat treatment.
Description
Technical field
The present invention relates to magnesium alloy materials technical field, be specifically related to a kind of magnesium lithium silicon alloy and preparation method thereof.
Background technology
Magnesium alloy is the lightest structural metallic materials of applying at present, has high specific strength, specific rigidity, and good heat conduction, conductive agent capability of electromagnetic shielding, have broad application prospects in fields such as automobile, household electrical appliances, communication, aerospace.Adopt lithium magnesium alloy to be carried out improving when alloying can further reduce magnesium alloy density the plasticity of close-packed hexagonal magnesium alloy.When the content of Li in Mg-Li alloy is during lower than 5.5wt%, it is organized as Li solid solution and in Mg lattice, forms α-Mg sosoloid; When the content of Li is during at 5.5wt%-11.5wt%, α-Mg phase of its chief component phase place hcp structure and β-Li phase of bcc structure; When the content of Li is during higher than 11.5wt%, alloy is completely by β-Li phase composite.When duplex structure (α-Mg+ β-Li) alloy, improve alloy plasticity when effective reduction alloy density compared with single-phase magnesium alloy.
But because the intensity of magnesium lithium alloy is lower, aging stability and corrosion-resistant restricted the development of magnesium lithium alloy.Adding alloying element is the common method that improves magnesium lithium alloy performance.CN101403064A open " a kind of magnesium lithium alloy that adds Ag enhancing ", added Ag, Zn alloy is strengthened, the two-phase magnesium lithium alloy of preparation has higher-strength, excellent plasticity and resistance to elevated temperatures, but Ag price is higher, and Ag, Zn density are large, after adding, make the density of alloy increase; CN101121981A open " a kind of high-strength magnesium-lithium alloy ", added Al, Zn, Ce alloy is strengthened, the single-phase magnesium lithium alloy of α-Mg of preparation has higher-strength, but its Li content is below 7 wt%, and has added a certain amount of Zn, density for alloy reduces DeGrain, even if Li content is in the time of 5.5 wt%-7 wt%, the α-Mg of close-packed hexagonal structure accounts for the overwhelming majority of alloy phase composition mutually, causes alloy plasticity poor; CN1605650A open " a kind of containing magnesium lithium alloy material and preparation method thereof ", in add Al, Zn, Zr, RE etc. as alloying element, prepare and there is higher-strength and more low-density magnesium lithium alloy, but its Li content is higher than 11wt%, this will certainly increase the cost of alloy, and causes the sharply decline of alloy corrosion resistance and thermostability.
The Si adding in alloy forms Mg
2when adding simultaneously, Si and Si and RE form (RE
xsi
y) high-melting-point hard phase, on the inside and interface that are distributed in α phase, β phase of disperse, effectively carry heavy alloyed intensity, hardness and Properties of High Temperature Creep.Because the fusing point of Si is high, smelting time is long, and Li is easily oxidized, even Li also easily distils and the content of Li in reducing alloy under vacuum environment, causes the loss of Li element.Adopt the form of Mg-Si master alloy can effectively reduce temperature and the dissolution time in alloy melt that be diffused into of Si element to Mg-Li gold melt interpolation Si element.
Although Chinese scholars is done a lot of work to the research of magnesium lithium alloy, add Si and strengthen the document of magnesium lithium alloy performance, have not yet to see report.
Summary of the invention
The object of the present invention is to provide a kind of maintenance on ultralight high-strength basis, improve a kind of magnesium lithium alloy that adds Si enhancing of alloy aging stability, resistance to elevated temperatures.
The present invention also provides the preparation method of described magnesium lithium silicon alloy.
The object of the present invention is achieved like this: a kind of magnesium lithium silicon alloy, it is characterized in that, and main component comprises: Li 7～9 wt.%, Si 0.5～3.0 wt.%, Al 1～6 wt.%, all the other are Mg and inevitable impurity.
Further, also comprise RE 1～5 wt.%.
Further, also comprise Sr 0.5～2.0 wt.%; Wherein, the 3-4 that the content of Al is Sr doubly, forms Al
4sr high-temperature-phase.
The present invention also provides a kind of preparation method of magnesium lithium silicon alloy, it is characterized in that, comprises the following steps:
1) take raw material by above-mentioned formula, be then placed on together in the smelting pot of vacuum induction melting furnace;
2) melting is carried out in vacuum induction melting furnace, starting material are placed rear sealed vacuum stove rapidly and just in stove, are evacuated to vacuum state, pour again argon gas as shielding gas, be then heated to 740 ± 10 DEG C of meltings 25～40 minutes, within 50～70 minutes, carry out 690 ± 10 DEG C of insulations;
3) melt after melting casts in metal die, obtains cast alloy;
4) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～6 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains crimp state alloy.
Further, step 2) step be, melting can be carried out in the good resistance furnace of sealing property, before melting first by being full of even mixing in resistance furnace heating chamber, dry volume ratio is Ar: SF
6the hybrid protection gas of=60%:40%; pure magnesium, Mg-Si master alloy, Al-Sr master alloy, Mg-RE master alloy are placed in smelting pot; electric furnace energising is heated to alloy melting; remove the scum silica frost on alloy liquid level; furnace temperature was controlled at about about 740 ± 10 DEG C insulation half an hour, in fusion process, constantly passes into even mixing, dry volume ratio is Ar: SF
6the hybrid protection gas of=60%:40%;
The step of step 3) is: pure lithium is taken out to be placed in bell jar be pressed into rapidly in aluminium alloy and be slowly stirred to pure lithium fusing, at 690 ± 10 DEG C of temperature, refining casts in melt in metal die after about 1 hour, obtains cast alloy;
Finally, deforming alloy is carried out the ageing treatment of 18～24 hours at 120～140 DEG C.
Compared to existing technology, the present invention has following beneficial effect:
1, the present invention adds Si in magnesium lithium alloy, to form Mg
2si low density high-melting-point hard phase, on the inside and interface that are distributed in α phase, β phase of disperse, in the time of alloy stress deformation, be pinned at the phase boundary that effectively reduces alloy inside on the inside of alloy α phase, β phase and interface, the relatively sliding of crystal boundary, put forward heavy alloyed resistance to deformation and high-temperature stability.When Li content is between 7～9wt%, make alloy in α+β two-phase region simultaneously, and make alloy on the basis that keeps higher-strength, promote a little the density of alloy adding of alloying element, produce heat-resistance high-strength magnesium lithium alloy cheaply.
2, preparation method of the present invention, utilize under solvent-free melting method and processing and heat treated condition for the cast material to obtained, Al-Sr, Mg-Si, Mg-Re are added in magnesium alloy fused mass with the form of master alloy, there is the feature that element is evenly distributed of adding.It is to prevent from obtaining and organizing pure ingot casting in metal is oxidized in fusion process that the present invention utilizes the advantage of the alloy cast ingot of solvent-free smelting technique production, and the impurity element that eliminating flux smelting process may sandwich and this status of solvent and metal melt be not from thorough.
3, the Novel magnesium lithium silicon alloy that adopts the inventive method to make, its mechanical property is: under room temperature, tensile strength is 250～290MPa, yield strength: 180～235MPa, unit elongation is: 10～23%, density is at 1.40～1.60g/cm
3; At 150 DEG C, tensile strength: 118～150 MPa, yield strength: 83～103MPa, unit elongation is: 20～40%.
Embodiment
Below in conjunction with embodiment and effect, the present invention is further detailed explanation.Alloy of the present invention is formed by pure magnesium, pure lithium, fine aluminium, the melting of magnesium silicon master alloy, and its purity is all more than 99.9%.Described Re element adds with the form of Mg-Re master alloy.
embodiment 1:
A kind of magnesium lithium silicon alloy, its composition and weight percent are: Li:8%, Al:3%, Si:1%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in vacuum induction melting furnace.After first various starting material being sealed in vacuum oven before melting, vacuum state will be evacuated to rapidly in stove, pour again shielding gas argon gas, then melting 30 minutes at 740 ± 10 DEG C of temperature, 690 ± 10 DEG C of insulations 1 hour, whole fusion process was under argon shield state; Melt after melting casts in metal die, obtains cast alloy.
2) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～4 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains crimp state alloy.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 251 MPa, and yield strength 195 MPa, unit elongation is: 13%, density is 1.43 g/cm
3, at 150 DEG C, tensile strength is: 118 MPa, yield strength is: 88 MPa, unit elongation: 34%.
embodiment 2:
A kind of magnesium lithium silicon alloy, its composition and weight percent: Li:8%, Al:3%, Si:1.5%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in vacuum induction melting furnace.After first various starting material being sealed in vacuum oven before melting, vacuum state will be evacuated to rapidly in stove, pour again shielding gas argon gas, then melting 30 minutes at 740 ± 10 DEG C of temperature, 690 ± 10 DEG C of insulations 1 hour, whole fusion process was under argon shield state; Melt after melting casts in metal die, obtains cast alloy.
2) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～4 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains deformation states alloy.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 260 MPa, and yield strength 203 MPa, unit elongation is: 12.1%, density is 1.45 g/cm
3, at 150 DEG C, tensile strength is: 123 MPa, yield strength is: 93 MPa, unit elongation: 24%.
embodiment 3:
A kind of magnesium lithium silicon alloy, its composition and weight percent: Li:8%, Al:3%, Si:1.0%, Y:1%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in vacuum induction melting furnace.After first various starting material being sealed in vacuum oven before melting, vacuum state will be evacuated to rapidly in stove, pour again shielding gas argon gas, then melting 30 minutes at 740 ± 10 DEG C of temperature, 690 ± 10 DEG C of insulations 1 hour, whole fusion process was under argon shield state; Melt after melting casts in metal die, obtains cast alloy.
2) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～4 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains deformation states alloy.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 268 MPa, and yield strength 212 MPa, unit elongation is: 14%, density is 1.49 g/cm
3, at 150 DEG C, tensile strength is: 120 MPa, yield strength is: 95 MPa, unit elongation: 28%.
embodiment 4:
A kind of magnesium lithium silicon alloy, its composition and weight percent: Li:8%, Al:3%, Si:1.0%, Sr:0.8%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in vacuum induction melting furnace.After first various starting material being sealed in vacuum oven before melting, vacuum state will be evacuated to rapidly in stove, pour again shielding gas argon gas, then melting 30 minutes at 740 ± 10 DEG C of temperature, 690 ± 10 DEG C of insulations 1 hour, whole fusion process was under argon shield state; Melt after melting casts in metal die, obtains cast alloy.
2) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～4 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains deformation states alloy.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 276 MPa, and yield strength 221 MPa, unit elongation is: 11.7%, density is 1.47 g/cm
3, at 150 DEG C, tensile strength is: 127 MPa, yield strength is: 97 MPa, unit elongation: 25%.
embodiment 5:
A kind of magnesium lithium silicon alloy, its composition and weight percent: Li:8%, Al:3%, Si:1.0%, Sr:0.6%, Y:1%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in vacuum induction melting furnace.After first various starting material being sealed in vacuum oven before melting, vacuum state will be evacuated to rapidly in stove, pour again shielding gas argon gas, then melting 30 minutes at 740 ± 10 DEG C of temperature, 690 ± 10 DEG C of insulations 1 hour, whole fusion process was under argon shield state; Melt after melting casts in metal die, obtains cast alloy.
2) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～4 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains deformation states alloy.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 287 MPa, and yield strength 226 MPa, unit elongation is: 13%, density is 1.49 g/cm
3, at 150 DEG C, tensile strength is: 131 MPa, yield strength is: 98 MPa, unit elongation: 27%.
embodiment 6:
A kind of magnesium lithium silicon alloy, its composition and weight percent: Li:7%, Al:6%, Si:2.0%, Sr:1.5%, Y:1%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in vacuum induction melting furnace.After first various starting material being sealed in vacuum oven before melting, vacuum state will be evacuated to rapidly in stove, pour again shielding gas argon gas, then melting 30 minutes at 740 ± 10 DEG C of temperature, 690 ± 10 DEG C of insulations 1 hour, whole fusion process was under argon shield state; Melt after melting casts in metal die, obtains cast alloy.
2) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～4 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains deformation states alloy.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 290 MPa, and yield strength 231 MPa, unit elongation is: 11.3%, density is 1.59 g/cm
3, at 150 DEG C, tensile strength is: 137 MPa, yield strength is: 100 MPa, unit elongation: 25%.
embodiment 7:
A kind of magnesium lithium silicon alloy, its composition and weight percent: Li:9%, Al:4%, Si:3.0%, Sr:0.6%, Y:4%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in vacuum induction melting furnace.After first various starting material being sealed in vacuum oven before melting, vacuum state will be evacuated to rapidly in stove, pour again shielding gas argon gas, then melting 30 minutes at 740 ± 10 DEG C of temperature, 690 ± 10 DEG C of insulations 1 hour, whole fusion process was under argon shield state; Melt after melting casts in metal die, obtains cast alloy.
2) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～4 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains deformation states alloy.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 279 MPa, and yield strength 228 MPa, unit elongation is: 11.5%, density is 1.58 g/cm
3, at 150 DEG C, tensile strength is: 150 MPa, yield strength is: 103MPa, unit elongation: 23.8%.
embodiment 8:
A kind of magnesium lithium silicon alloy, its composition and weight percent: Li:9%, Al:2%, Si:1.2%, Sr:0.6%, Y:1%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in vacuum induction melting furnace.After first various starting material being sealed in vacuum oven before melting, vacuum state will be evacuated to rapidly in stove, pour again shielding gas argon gas, then melting 30 minutes at 740 ± 10 DEG C of temperature, 690 ± 10 DEG C of insulations 1 hour, whole fusion process was under argon shield state; Melt after melting casts in metal die, obtains cast alloy.
2) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～4 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains deformation states alloy.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 266 MPa, and yield strength 211 MPa, unit elongation is: 14.3%, density is 1.41 g/cm
3, at 150 DEG C, tensile strength is: 141 MPa, yield strength is: 98 MPa, unit elongation: 27%.
embodiment 9:
A kind of magnesium lithium silicon alloy, its composition and weight percent: Li:8%, Al:3%, Si:0.8%, Sr:1%, Y:1%, surplus is Mg.Adopt with the following method and be prepared from:
1) melting is carried out in the good resistance furnace of sealing property, before melting first by being full of even mixing in resistance furnace heating chamber, dry volume ratio is Ar: SF
6the hybrid protection gas of=60%:40%; load weighted pure magnesium, Mg-Si master alloy, Al-Sr master alloy, Mg-RE master alloy are placed in smelting pot; electric furnace energising is heated to alloy melting; remove the scum silica frost on alloy liquid level; furnace temperature is controlled to about 740 ± 10 DEG C insulations 1 hour, in fusion process, constantly passes into even mixing, dry volume ratio is Ar: SF
6the hybrid protection gas of=60%:40%;
2) pure lithium taking-up is placed in bell jar and is pressed into rapidly in aluminium alloy and is slowly stirred to pure lithium fusing, at 690 ± 10 DEG C of temperature, refining cast in melt in metal die after half an hour, obtained cast alloy;
3) at 320 ± 10 DEG C, cast alloy is carried out to homogenizing processing in 2～4 hours, make cast alloy form blank;
4) at 280 ± 10 DEG C, blank is carried out to 1～2 hour preheating; And blank is carried out to extrusion processing, thereby form crimp alloy;
5) deforming alloy is carried out the ageing treatment of 18～24 hours at 120 ~ 140 DEG C.
The alloy of deformation states carries out Mechanics Performance Testing on electronic universal tester, has the density of Archimedes's method beta alloy.
At room temperature, tensile strength is the magnesium lithium alloy of gained: 268 MPa, and yield strength 197 MPa, unit elongation is: 10.8%, density is 1.49 g/cm
3, at 150 DEG C, tensile strength is: 128 MPa, yield strength is: 83 MPa, unit elongation: 27%.
As can be seen from Table 1, at ambient temperature, tensile strength is greater than 200MPa to this magnesium alloy materials for specific embodiment and test effect, and yield strength is greater than 180MPa, and unit elongation is greater than 10%.Magnesium alloy of the present invention is ultralight high-strength magnesium alloy.Can be used as the lightweight structural material of electronic product, aerospace, automobile etc.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. a magnesium lithium silicon alloy, is characterized in that, main component comprises: Li 7～9 wt.%, Si 0.1～3.0 wt.%, Al 1～6 wt.%, all the other are Mg and inevitable impurity.
2. magnesium lithium silicon alloy according to claim 1, is characterized in that, also comprises RE 1～5 wt.%.
3. according to magnesium lithium silicon alloy described in claim 1 or 2, it is characterized in that, also comprise Sr 0.5～2.0 wt.%; Wherein, the content of Al is Sr 3～4 times, form Al
4sr high-temperature-phase.
4. a preparation method for magnesium lithium silicon alloy, is characterized in that, comprises the following steps:
1) take raw material by the formula of claim 1, be then placed on together in the smelting pot of vacuum induction melting furnace;
2) melting is carried out in vacuum induction melting furnace, starting material are placed rear sealed vacuum stove rapidly and just in stove, are evacuated to vacuum state, pour again argon gas as shielding gas, be then heated to 740 ± 10 DEG C of meltings 25～40 minutes, 690 ± 10 DEG C of insulations 50～70 minutes;
3) melt after melting casts in metal die, obtains cast alloy;
4) cast alloy obtaining carries out homogenizing at 300 ± 10 DEG C to be processed 2～6 hours, then alloy after treatment homogenizing is carried out to extrusion processing at 280 ± 10 DEG C, obtains crimp state alloy.
5. the preparation method of magnesium lithium silicon alloy according to claim 4, is characterized in that, adding of element silicon is that form with Mg-8～15 wt% Si master alloy adds.
6. the preparation method of magnesium lithium silicon alloy according to claim 4, is characterized in that, also adds Re element, is to add with the form of Mg-20～40 wt%RE master alloy, adds step 1) is disposable.
7. the preparation method of magnesium lithium silicon alloy according to claim 4, is characterized in that, also adds Al, Sr element, is to add with the form of Al-10 ~ 30wt%Sr master alloy; Add step 1) is disposable.
8. a preparation method for magnesium lithium silicon alloy, is characterized in that, comprises the following steps:
1) take raw material by claim 1,2 or 3 formula;
2) melting can be carried out in the good resistance furnace of sealing property, before melting first by being full of even mixing in resistance furnace heating chamber, dry volume ratio is Ar: SF
6the hybrid protection gas of=60%:40%; pure magnesium, Mg-Si master alloy, Al-Sr master alloy, Mg-RE master alloy are placed in smelting pot; electric furnace energising is heated to alloy melting; remove the scum silica frost on alloy liquid level; furnace temperature is controlled to about 740 ± 10 DEG C insulations 1 hour, in fusion process, constantly passes into even mixing, dry volume ratio is Ar: SF
6the hybrid protection gas of=60%:40%;
3) pure lithium taking-up is placed in bell jar and is pressed into rapidly in aluminium alloy and is slowly stirred to pure lithium fusing, at 690 ± 10 DEG C of temperature, refining cast in melt in metal die after half an hour, obtained cast alloy;
4) at 300 ± 10 DEG C, cast alloy is carried out to homogenizing processing in 2～4 hours, make cast alloy form blank;
5) at 280 ± 10 DEG C, blank is carried out to 1～2 hour preheating; And blank is carried out to extrusion processing, thereby form crimp alloy;
6) deforming alloy is carried out the ageing treatment of 18～24 hours at 120～140 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410317233.4A CN104046869B (en) | 2014-07-04 | 2014-07-04 | A kind of preparation method of magnesium Li-Si alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410317233.4A CN104046869B (en) | 2014-07-04 | 2014-07-04 | A kind of preparation method of magnesium Li-Si alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104046869A true CN104046869A (en) | 2014-09-17 |
| CN104046869B CN104046869B (en) | 2016-08-17 |
Family
ID=51500259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410317233.4A Expired - Fee Related CN104046869B (en) | 2014-07-04 | 2014-07-04 | A kind of preparation method of magnesium Li-Si alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104046869B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950927A (en) * | 2016-06-13 | 2016-09-21 | 太原理工大学 | Preparation method for reinforced and toughened magnesium-lithium alloy |
| CN110964959A (en) * | 2019-12-20 | 2020-04-07 | 佛山科学技术学院 | High-strength magnesium-lithium alloy |
| CN114752832A (en) * | 2022-05-17 | 2022-07-15 | 郑州轻研合金科技有限公司 | High-strength low-notch sensitivity magnesium-lithium alloy and preparation method and application thereof |
| CN115011851A (en) * | 2022-07-01 | 2022-09-06 | 西安四方超轻材料有限公司 | Magnesium-lithium alloy suitable for die casting and preparation method thereof |
| CN115584419A (en) * | 2022-10-28 | 2023-01-10 | 郑州轻研合金科技有限公司 | Heat-resistant two-phase magnesium-lithium alloy and preparation method thereof |
| CN115786751A (en) * | 2022-11-15 | 2023-03-14 | 重庆天齐锂业有限责任公司 | Lithium magnesium silicon alloy smelting method |
| CN116287917A (en) * | 2023-03-24 | 2023-06-23 | 西北有色金属研究院 | Light high-strength and high-toughness extruded Mg-Li-Al-TiB alloy and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119689A (en) * | 1962-07-20 | 1964-01-28 | Saia Anthony | High strength magnesium-lithium base alloys |
| US5059390A (en) * | 1989-06-14 | 1991-10-22 | Aluminum Company Of America | Dual-phase, magnesium-based alloy having improved properties |
-
2014
- 2014-07-04 CN CN201410317233.4A patent/CN104046869B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119689A (en) * | 1962-07-20 | 1964-01-28 | Saia Anthony | High strength magnesium-lithium base alloys |
| US5059390A (en) * | 1989-06-14 | 1991-10-22 | Aluminum Company Of America | Dual-phase, magnesium-based alloy having improved properties |
Non-Patent Citations (3)
| Title |
|---|
| A.SANSCHAGRIN,等: ""Mechanical properties and microstructure of new magnesium-lithium base alloys"", 《MATERIALS SCIENCE AND ENGINEERING:A》, vol. 220, no. 12, 15 December 1996 (1996-12-15), pages 69 - 77 * |
| YANG YAN等: ""Microstructure and Mechanical Behavior of a New α+β-Type Mg-9Li-3Al-2.5Sr Alloy"", 《RARE METAL MATERIALS AND ENGINEERING》, vol. 43, no. 6, 15 June 2014 (2014-06-15), pages 1281 - 1285 * |
| 杨艳等: ""挤压态Mg-9Li-3Al-xSr镁合金的微观组织与力学性能"", 《重庆大学学报》, vol. 36, no. 12, 15 December 2013 (2013-12-15), pages 103 - 110 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950927A (en) * | 2016-06-13 | 2016-09-21 | 太原理工大学 | Preparation method for reinforced and toughened magnesium-lithium alloy |
| CN105950927B (en) * | 2016-06-13 | 2018-04-10 | 太原理工大学 | A kind of preparation method of activeness and quietness type magnesium lithium alloy |
| CN110964959A (en) * | 2019-12-20 | 2020-04-07 | 佛山科学技术学院 | High-strength magnesium-lithium alloy |
| CN114752832A (en) * | 2022-05-17 | 2022-07-15 | 郑州轻研合金科技有限公司 | High-strength low-notch sensitivity magnesium-lithium alloy and preparation method and application thereof |
| CN115011851A (en) * | 2022-07-01 | 2022-09-06 | 西安四方超轻材料有限公司 | Magnesium-lithium alloy suitable for die casting and preparation method thereof |
| CN115584419A (en) * | 2022-10-28 | 2023-01-10 | 郑州轻研合金科技有限公司 | Heat-resistant two-phase magnesium-lithium alloy and preparation method thereof |
| CN115584419B (en) * | 2022-10-28 | 2023-10-03 | 郑州轻研合金科技有限公司 | Heat-resistant biphase magnesium-lithium alloy and preparation method thereof |
| CN115786751A (en) * | 2022-11-15 | 2023-03-14 | 重庆天齐锂业有限责任公司 | Lithium magnesium silicon alloy smelting method |
| CN115786751B (en) * | 2022-11-15 | 2024-01-19 | 重庆天齐锂业有限责任公司 | Smelting method of lithium-magnesium-silicon alloy |
| CN116287917A (en) * | 2023-03-24 | 2023-06-23 | 西北有色金属研究院 | Light high-strength and high-toughness extruded Mg-Li-Al-TiB alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104046869B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104046869A (en) | Mg-Li-Si alloy and preparation method thereof | |
| CN102021444B (en) | High-conductive heat-resistant aluminium alloy conductor and preparation method thereof | |
| CN103122431B (en) | Preparation method for magnesium-lithium alloy with enhanced long-period structure phase | |
| CN100430502C (en) | High-strength magnesium-lithium alloy | |
| CN102978490A (en) | High-strength, high-conductivity and heat-resisting aluminum alloy bus and production method thereof | |
| CN103526082A (en) | High thermal conductivity cast aluminium alloy and preparation method thereof | |
| CN103074520A (en) | Er-containing high-niobium Ti-Al intermetallic compound material and preparation method thereof | |
| CN102978478B (en) | Al-Fe-Mn-RE aluminium alloy and preparation method thereof and power cable | |
| CN103103388B (en) | Al-Fe-Cr-RE aluminium alloy and preparation method thereof and power cable | |
| CN104233024A (en) | High-strength two-phase ultralight magnesium lithium alloy and preparation method thereof | |
| CN103290287A (en) | Rare earth magnesium-lithium alloy sheet and preparation method thereof | |
| CN103305738B (en) | Siliceous heat resisting magnesium-rare earth alloy and preparation method thereof | |
| CN104195396A (en) | Heat-resistant rare-earth magnesium alloy containing silicon, zinc and Gd(-Y) and preparation method thereof | |
| CN102154580A (en) | High-intensity heat-resistant magnesium alloy material and preparation process thereof | |
| CN105779826A (en) | Aluminum alloy rod and preparing method thereof as well as preparing method of aluminum alloy wire | |
| CN110592445A (en) | 720-doped 740MPa cold extrusion Al-Zn-Mg-Cu-Ti aluminum alloy and preparation method thereof | |
| CN109797328B (en) | Medium-high strength damage-resistant aluminum-lithium alloy material and preparation method and application thereof | |
| CN103290286A (en) | As-cast high-strength-and-toughness ma.gnesium-lithium alloy and preparation method thereof | |
| CN102978453B (en) | Al-Fe-In-RE aluminum alloy, and preparation method and power cable thereof | |
| CN103146972B (en) | A kind of Multielement rare-earth magnesium alloy and preparation method thereof | |
| CN104928549A (en) | High-strength and high-elasticity-modulus casting Mg-RE alloy and preparation method thereof | |
| CN103725931A (en) | Aluminum-Ferrum-Vanadium aluminum alloy and preparation method thereof and aluminum alloy cable | |
| CN105154736A (en) | Heat-resisting cast magnesium alloy and preparation method thereof | |
| CN104862567A (en) | High-Sn wrought magnesium alloy and preparation method of high-Sn wrought magnesium alloy panel | |
| CN109182858A (en) | One kind heat resistance magnesium alloy containing Ho and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |