CN108754267A - High-strength deforming magnesium alloy and preparation method thereof containing rare earth samarium - Google Patents
High-strength deforming magnesium alloy and preparation method thereof containing rare earth samarium Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C23/00—Alloys based on magnesium
- C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/02—Making non-ferrous alloys by melting
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
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Abstract
The present invention provides a kind of high-strength deforming magnesium alloy and preparation method thereof containing rare earth samarium, belongs to technical field of metal material.Solve the problems, such as existing magnesium alloy rare-earth too high levels or poor mechanical property.The magnesium alloy, composition and the mass percent respectively formed are as follows：Sm：1.0~6.6wt.%, Zn：0.5~3.5wt.%, Zr：0.15~1.5wt.%, surplus Mg.The present invention also provides a kind of preparation methods of the high-strength deforming magnesium alloy containing rare earth samarium.The high-strength deforming magnesium alloy containing rare earth samarium of the present invention has excellent mechanical property, and by taking Mg-3.5Sm-0.6Zn-0.5Zr as an example, room-temperature yield strength and tensile strength are respectively 415MPa and 423MPa.
Description
Technical field
The invention belongs to technical field of metal material, more particularly to containing the high-strength deforming magnesium alloy of rare earth samarium and its preparation side
Method.
Background technology
Magnesium metal and magnesium alloy are as metal material most light in current commercial Application, since it is with excellent casting
Property, specific stiffness, specific strength, good machinability and higher damped coefficient and outstanding capability of electromagnetic shielding, make it
In the fields such as automobile, aviation, electronics, application potential is huge, becomes the manufacturers of the industries such as countries in the world automobile, aircraft competitively
One of 21 century novel green material of research and development.However the intensity of traditional magnesium alloy is not high, seriously limits magnesium alloy
Using therefore, exploitation high-strength magnesium alloy is of great significance.
In recent years, magnesium-rare earth is attracted wide attention as a kind of high-strength magnesium alloy, and studying more is closed to magnesium
The rare earth elements such as Gd, Y, Nd are added in gold.Mg -11Gd -4.5Y -1Nd -1.5Zn -0.5Zr (wt.%) alloy of Yu et al. researchs
Yield strength reaches 481MPa, tensile strength 517MPa after extruding, rolling and ageing treatment.Homma et al. researchs
Mg -10Gd -5.7Y -1.6Zn -0.6Zr (wt.%) alloys reach 473MPa by squeezing with yield strength after ageing treatment, resist
Tensile strength reaches 542MPa.Although above-mentioned alloy has reached higher intensity, content of rare earth is higher, not only considerably increases conjunction
Golden cost, and increase alloy density, it is difficult to fundamentally solve the problems, such as the commercial Application of magnesium alloy.Therefore, it develops novel
Low-cost and high-performance deformable rare earth magnesium alloy has in the high-tech industries such as defence and military, aerospace, automobile and rail traffic
There is highly important application value.
Invention content
The problem of the purpose of the present invention is to solve existing magnesium alloy rare-earth too high levels or poor mechanical properties, and carry
For the high-strength deforming magnesium alloy and preparation method thereof containing rare earth samarium.
To achieve the above object, the technical solution adopted by the present invention is：
Present invention firstly provides a kind of high-strength deforming magnesium alloy containing rare earth samarium, composition and the mass percent respectively formed
It is as follows：
Sm：1.0~6.6wt.%, Zn：0.5~3.5wt.%, Zr：0.15~1.5wt.%, surplus Mg.
Preferably, the magnesium alloy, composition and the mass percent respectively formed are as follows：
Sm：1.5~6.5wt.%, Zn：0.6~2.5wt.%, Zr：0.5~1.0wt.%, surplus Mg.
The present invention also provides a kind of preparation methods of high-strength deforming magnesium alloy containing rare earth samarium, include the following steps：
(1) prepared by magnesium alloy ingot：By pure Mg ingots, the feed proportioning of pure Zn ingots, the raw material of Zr elements, Sm elements, and cast
Cause magnesium alloy ingot；
(2) prepared by extrusion billet：By above-mentioned magnesium alloy ingot in 500~530 DEG C of 6~14h of Homogenization Treatments, and it is processed into
Extrusion billet；
(3) prepared by extrudate：Above-mentioned extrusion billet and extrusion die preheat in 300~400 DEG C of resistance furnaces to 1.5~
3.5h, extruder preheat 1~2h, extrusion ratio 8 at 300~400 DEG C:1~20:1, extrusion speed is 0.01~1.0m/min,
It is prepared into extrudate through plastic deformation；
(4) ageing treatment：Above-mentioned extrudate is heat-treated 10~72h at 180~220 DEG C, is obtained high-strength containing rare earth samarium
Wrought magnesium alloy.
Preferably, magnesium alloy ingot preparation method in the step (1), includes the following steps：
1) raw material of the pure Mg ingots of raw material, pure Zn ingots, the raw material of Zr elements, Sm elements is dried；
2) under protective atmosphere, after pure magnesium ingot is completely melt at 680~780 DEG C, magnesium melt is obtained；
3) at 710~750 DEG C, the raw material of Sm elements is added in magnesium melt 2), obtains the second alloy molten solution；
4) at 710~750 DEG C, pure Zn ingots are added in the second alloy molten solution 3), obtain third alloy molten solution；
5) third alloy molten solution is warming up to 740~770 DEG C, the raw material of Zr elements is added to third alloy molten solution 4)
In, obtain the 4th alloy molten solution；
6) the 4th alloy molten solution is warming up to 760~780 DEG C, is passed through the Ar gas after preheating and is refined, it is cooled to 740~
750 DEG C of standings, wait for that temperature is reduced to 700~720 DEG C, strike off the dross of bath surface, poured in water cooling steel mold after preheat
Casting, obtains magnesium alloy ingot；
Preferably, the step 1) drying temperature is 200~300 DEG C, and drying time is 1~2h.
Preferably, 1) raw material of the Sm elements is Mg-Sm intermediate alloys, and the content of Sm is 20~30wt.%；
Preferably, 1) raw material of the Zr element is Mg-Zr intermediate alloys, and the content of Zr is 20~30wt.%.
Preferably, the step 2) protective gas is CO2And SF6Mixed gas；CO2And SF6Volume ratio is 99：1.
Preferably, the step 6) refining time is 2~8 minutes.
Preferably, the step 6) time of repose is 20~40 minutes.
Beneficial effects of the present invention
Present invention firstly provides a kind of high-strength deforming magnesium alloy containing rare earth samarium, which is Mg-Sm-Zn-Zr, this
Invention uses rare-earth Sm element for the first component, and solid solubility of the Sm in magnesium is larger, and maximum solid solution degree 5.8wt.% is higher than
Nd, Pr, Ce and La have preferable solution strengthening effect and precipitation strength effect.The second phase Mg that Sm and Mg is formed3Sm is main
Be distributed on the crystal boundary of casting alloy, can effective crystal grain thinning be squeezed broken tiny Mg by hot extrusion deformation3Sm particles
It is mutually evenly distributed in matrix, promotes alloy that dynamic recrystallization occurs, effective that crystal grain is hindered to grow up, alloy structure is further
It is refined, alloy strength can be greatly improved.A certain amount of Zn elements are added in the alloy, can promote tiny precipitated phase when
The disperse educt in processing procedure is imitated, basal plane dislocation can be hindered to move, to further increase alloy strength.Zr elements also can
Enough effective crystal grain thinnings, and then improve alloy strength.The high-strength deforming magnesium alloy containing rare earth samarium of the present invention has excellent mechanics
Performance, by taking Mg-3.5Sm-0.6Zn-0.5Zr as an example, room-temperature yield strength and tensile strength are respectively 415MPa and 423MPa.
The present invention also provides a kind of preparation methods of high-strength deforming magnesium alloy containing rare earth samarium, compared with prior art, this hair
Bright device therefor is conventional common apparatus, simple for process, and easy to operate, cost is relatively low, easy to utilize.In addition, Sm
Price is with respect to Gd, and Y, Nd is relatively low, and dosage is relatively low, and cost of alloy substantially reduces.
Description of the drawings
Fig. 1 is 1 magnesium alloy extrusion state microstructure stereoscan photograph of the embodiment of the present invention；
Fig. 2 is that 1 magnesium alloy extrusion state microstructure transmission electron microscope photo of the embodiment of the present invention and corresponding selection electronics spread out
Penetrate figure.
Specific implementation mode
Present invention firstly provides a kind of high-strength deforming magnesium alloy containing rare earth samarium, composition and the mass percent respectively formed
It is as follows：
Sm：1.0~6.6wt.%, Zn：0.5~3.5wt.%, Zr：0.15~1.5wt.%, surplus Mg.Preferably
Sm：1.5~6.5wt.%, Zn：0.6~2.5wt.%, Zr：0.5~1.0wt.%, surplus Mg.
The present invention also provides a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium, the magnesium alloy be with pure Mg ingots,
Pure Zn ingots, Mg-Zr intermediate alloys, Mg-Sm intermediate alloys are raw material melting and casting, Homogenization Treatments, hot extrusion and ageing treatment
It is prepared, includes the following steps：
(1) prepared by magnesium alloy ingot：By pure Mg ingots, the feed proportioning of pure Zn ingots, the raw material of Zr elements, Sm elements, and cast
Cause magnesium alloy ingot；
(2) prepared by extrusion billet：By above-mentioned magnesium alloy ingot in 500~530 DEG C of 6~14h of Homogenization Treatments, and it is processed into
Extrusion billet；
(3) prepared by extrudate：Above-mentioned extrusion billet and extrusion die preheat in 300~400 DEG C of resistance furnaces to 1.5~
3.5h, extruder preheat 1~2h, extrusion ratio 8 at 300~400 DEG C:1~20:1, extrusion speed is 0.01~1.0m/min,
It is prepared into extrudate through plastic deformation；
(4) ageing treatment：Above-mentioned extrudate is heat-treated 10~72h at 180~220 DEG C, is obtained high-strength containing rare earth samarium
Wrought magnesium alloy.
Preferably, magnesium alloy ingot preparation method in the step (1), includes the following steps：
1) raw material of the pure Mg ingots of raw material, pure Zn ingots, the raw material of Zr elements, Sm elements is dried；The drying temperature
Preferably 200~300 DEG C of degree, drying time is preferably 1~2h；The raw material of the Sm elements is Mg-Sm intermediate alloys, and Sm's contains
Amount is preferably 20~30wt.%；The raw material of the Zr elements is Mg-Zr intermediate alloys, the content of Zr is preferably 20~
30wt.%；
2) under protective atmosphere, after pure magnesium ingot is completely melt at 680~780 DEG C, magnesium melt is obtained；The protection
Gas is preferably CO2And SF6Mixed gas, CO2And SF6Volume ratio is preferably 99：1；
3) at 710~750 DEG C, it is allowed to complete by preferably being stirred 2~5 minutes in the magnesium melt of the raw material addition of Sm elements 2)
It melts and is uniformly distributed, obtain the second alloy molten solution；
4) at 710~750 DEG C, it is allowed to complete by preferably being stirred 2~5 minutes in the second alloy molten solution of pure Zn ingots addition 3)
It melts and is uniformly distributed, obtain third alloy molten solution；
5) third alloy molten solution is warming up to 740~770 DEG C, the raw material of Zr elements is added to third alloy molten solution 4)
In preferably stir 5~10 minutes and be allowed to be completely melt and be uniformly distributed, obtain the 4th alloy molten solution；
6) the 4th alloy molten solution is warming up to 760~780 DEG C, is passed through the Ar gas after preheating and is refined, it is cooled to 740~
750 DEG C of standings, wait for that temperature is reduced to 700~720 DEG C, strike off the dross of bath surface, poured in water cooling steel mold after preheat
Casting, obtains magnesium alloy ingot；The refining time is preferably 2~8 minutes；Time of repose is preferably 20~40 minutes；
The present invention is elaborated with reference to specific embodiment, it should be noted that following embodiment is to the present invention
Illustrate, rather than limiting the invention, protection scope of the present invention is not limited to following embodiment.
Embodiment 1
The present embodiment high-strength deforming magnesium alloy consists of the following mass percentage components：3.5%Sm, 0.6%Zn,
0.5%Zr, surplus are Mg and inevitable impurity.
The preparation of the present embodiment high-strength deforming magnesium alloy includes the following steps：
(1) prepared by magnesium alloy ingot：By pure Mg ingots, pure Zn ingots, Mg-Zr (Zr 20wt.%) intermediate alloy, Mg-Sm (Sm
For 25wt.%) intermediate alloy press above-mentioned mass percent dispensing, then dried, drying temperature be 280 DEG C, drying time
For 1.5h.
In preparation process, melt is always in CO2And SF6Under the protection of mixed gas, CO2With SF6Ratio be 99:1, it will
The pure Mg ingots dried are put into crucible to heat up with stove, until being completely melt, temperature is controlled at 730 DEG C, obtains magnesium melt；
The Mg-Sm intermediate alloys dried are added in magnesium melt, temperature is controlled at 730 DEG C, and 3 are stirred after being completely melt
Minute, obtain the second alloy molten solution；
The pure Zn ingots dried are added in the second alloy molten solution, temperature is controlled at 730 DEG C, and 3 are stirred after being completely melt
Minute, obtain third alloy molten solution；
Third alloy molten solution is warming up to 760 DEG C, the Mg-Zr intermediate alloys dried are added to third alloy molten solution
In, 10 points are stirred after being completely melt, obtain the 4th alloy molten solution；
4th alloy molten solution is warming up to 770 DEG C, the Ar gas after preheating is passed through and is refined, refine 5 minutes, melt is dropped
Temperature stands 30 minutes to 740 DEG C；Melt is cooled to 710 DEG C, strikes off dross on surface of fusant, in water cooling mold after preheat
Casting, obtains magnesium alloy ingot.
(2) prepared by extrusion billet：By above-mentioned magnesium alloy ingot in 520 DEG C of Homogenization Treatments 8h, and it is processed into extrusion billet.
(3) prepared by extrudate：Above-mentioned extrusion billet and extrusion die are preheated into 3h, extruder in 320 DEG C of resistance furnaces
2h, extrusion ratio 8 are preheated at 320 DEG C:1, extrusion speed 0.01m/min are prepared into extrudate through plastic deformation.
(4) ageing treatment：By above-mentioned extrudate 180 DEG C, 200 DEG C, 220 DEG C heat treatment 10h, 16h, 20h, for 24 hours,
36h, 48h, 60h, 72h obtain the high-strength deforming magnesium alloy containing rare earth samarium.
Fig. 1 is 1 magnesium alloy extrusion state microstructure stereoscan photograph of the embodiment of the present invention, and Fig. 1 shows As-extruded alloy
Recrystal grain it is very tiny, uniform, and squeeze broken the second distributed mutually of small size in the base.
Fig. 2 is 1 magnesium alloy extrusion state microstructure transmission electron microscope photo (a figures) of the embodiment of the present invention and corresponding selection electricity
Sub- diffraction pattern (b figures).Fig. 2 shows that there are the second phases of small size in extruding aging state alloy, analyze selective electron diffraction, should
Second phase is the Mg of face-centred cubic structure3Sm phases, meanwhile, the also precipitated phase Dispersed precipitate of nano-scale in the base can
Basal plane dislocation sliding is effectively hindered, to improve alloy strength.Therefore, the main strengthening mechanism of alloy of the present invention is fine grain
Reinforcing and ageing strengthening.
Embodiment 2
The present embodiment 2 is as different from Example 1：Extrusion billet and extrusion die preheat 2h in 380 DEG C of resistance furnaces, squeeze
Press preheats 2h, extrusion ratio 20 at 380 DEG C:1, extrusion speed 1.0m/min.
Embodiment 3
The present embodiment 3 is as different from Example 1：The alloy compositions mass percentage be 1.5%Sm, 0.6%Zn,
0.5%Zr, surplus Mg.
Embodiment 4
The present embodiment 4 is as different from Example 1：The alloy compositions mass percentage be 6.5%Sm, 0.6%Zn,
0.5%Zr, surplus Mg.Extrusion billet and extrusion die preheat 2h in 340 DEG C of resistance furnaces, and extruder is preheated at 340 DEG C
1.5h, extrusion ratio 8:1, extrusion speed 0.1m/min.
Embodiment 5
The present embodiment 5 is as different from Example 1：The alloy compositions mass percentage be 3.5%Sm, 1.5%Zn,
1.0%Zr, surplus Mg.Extrusion billet and extrusion die preheat 2h in 340 DEG C of resistance furnaces, and extruder is preheated at 340 DEG C
1.5h, extrusion ratio 8:1, extrusion speed 0.1m/min.
Embodiment 6
The present embodiment 6 is as different from Example 1：The alloy compositions mass percentage be 3.5%Sm, 2.5%Zn,
1.0%Zr, surplus Mg.Extrusion billet and extrusion die preheat 2h in 340 DEG C of resistance furnaces, and extruder is preheated at 340 DEG C
1.5h, extrusion ratio 8:1, extrusion speed 0.1m/min.
Above-described embodiment 1-6 magnesium alloy rods are taken to carry out room temperature tensile properties test, experimental result is shown in Table 1.
The room-temperature mechanical property of 1 high-strength deforming magnesium alloy of the present invention containing rare earth samarium of table
| Serial number | Squeeze temperature (DEG C) | Extrusion ratio | Yield strength (MPa) | Tensile strength (MPa) |
| Embodiment 1 | 320 | 8 | 415 | 423 |
| Embodiment 2 | 380 | 20 | 267 | 282 |
| Embodiment 3 | 320 | 8 | 391 | 402 |
| Embodiment 4 | 340 | 8 | 381 | 388 |
| Embodiment 5 | 340 | 8 | 408 | 417 |
| Embodiment 6 | 340 | 8 | 382 | 395 |
As seen from the above table, there is alloy of the invention higher mechanical property, highest yield strength to reach 410MPa or more, can
With meet magnesium alloy the high-tech industries such as defence and military, aerospace, automobile and rail traffic application requirement.
Claims (10)
1. a kind of high-strength deforming magnesium alloy containing rare earth samarium, which is characterized in that the mass percent that it forms and respectively forms is as follows：
Sm：1.0~6.6wt.%, Zn：0.5~3.5wt.%, Zr：0.15~1.5wt.%, surplus Mg.
2. a kind of high-strength deforming magnesium alloy containing rare earth samarium according to claim 1, which is characterized in that the magnesium closes
Gold, composition and the mass percent respectively formed are as follows：
Sm：1.5~6.5wt.%, Zn：0.6~2.5wt.%, Zr：0.5~1.0wt.%, surplus Mg.
3. a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium according to claim 1, which is characterized in that including
Following steps：
(1) prepared by magnesium alloy ingot：By pure Mg ingots, the feed proportioning of pure Zn ingots, the raw material of Zr elements, Sm elements, and it is cast as
Magnesium alloy ingot；
(2) prepared by extrusion billet：By above-mentioned magnesium alloy ingot in 500~530 DEG C of 6~14h of Homogenization Treatments, and it is processed into extruding
Blank；
(3) prepared by extrudate：Above-mentioned extrusion billet and extrusion die preheat in 300~400 DEG C of resistance furnaces to 1.5~
3.5h, extruder preheat 1~2h, extrusion ratio 8 at 300~400 DEG C:1~20:1, extrusion speed is 0.01~1.0m/min,
It is prepared into extrudate through plastic deformation；
(4) ageing treatment：Above-mentioned extrudate is heat-treated 10~72h at 180~220 DEG C, obtains high-strength deformation containing rare earth samarium
Magnesium alloy.
4. a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium according to claim 3, which is characterized in that described
Magnesium alloy ingot preparation method in step (1), includes the following steps：
1) raw material of the pure Mg ingots of raw material, pure Zn ingots, the raw material of Zr elements, Sm elements is dried；
2) under protective atmosphere, after pure magnesium ingot is completely melt at 680~780 DEG C, magnesium melt is obtained；
3) at 710~750 DEG C, the raw material of Sm elements is added in magnesium melt 2), obtains the second alloy molten solution；
4) at 710~750 DEG C, pure Zn ingots are added in the second alloy molten solution 3), obtain third alloy molten solution；
5) third alloy molten solution is warming up to 740~770 DEG C, the raw material of Zr elements is added in third alloy molten solution 4),
Obtain the 4th alloy molten solution；
6) the 4th alloy molten solution is warming up to 760~780 DEG C, is passed through the Ar gas after preheating and is refined, is cooled to 740~750
DEG C stand, wait for that temperature is reduced to 700~720 DEG C, strike off the dross of bath surface, cast in water cooling steel mold after preheat,
Obtain magnesium alloy ingot.
5. a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium according to claim 4, which is characterized in that described
Step 1) drying temperature be 200~300 DEG C, drying time be 1~2h.
6. a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium according to claim 4, which is characterized in that described
1) raw material of Sm elements is Mg-Sm intermediate alloys, and the content of Sm is 20~30wt.%.
7. a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium according to claim 4, which is characterized in that described
1) raw material of Zr elements is Mg-Zr intermediate alloys, and the content of Zr is 20~30wt.%.
8. a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium according to claim 4, which is characterized in that described
Step 2) protective gas be CO2And SF6Mixed gas；CO2And SF6Volume ratio is 99：1.
9. a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium according to claim 4, which is characterized in that described
Step 6) refining time be 2~8 minutes.
10. a kind of preparation method of high-strength deforming magnesium alloy containing rare earth samarium according to claim 4, which is characterized in that institute
Step 6) the time of repose stated is 20~40 minutes.
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| CN110284036A (en) * | 2019-08-07 | 2019-09-27 | 中国科学院长春应用化学研究所 | A kind of light rare earth magnesium alloy and preparation method thereof |
| CN110284035A (en) * | 2019-08-07 | 2019-09-27 | 中国科学院长春应用化学研究所 | A kind of heat resistance magnesium alloy and preparation method thereof |
| CN111020309A (en) * | 2019-09-23 | 2020-04-17 | 山东南山铝业股份有限公司 | High-strength wrought aluminum alloy containing rare earth samarium and preparation method thereof |
| CN111218595A (en) * | 2020-01-14 | 2020-06-02 | 西安交通大学 | High-strength heat-conducting magnesium alloy and preparation method thereof |
| CN113005378A (en) * | 2021-03-03 | 2021-06-22 | 赣南师范大学 | Heat treatment process of Ag-containing Mg-Sm rare earth magnesium alloy |
| CN113234979A (en) * | 2021-06-22 | 2021-08-10 | 镁里镁(北京)科技有限公司 | High-strength rare earth wrought magnesium alloy and preparation method thereof |
| CN113462939A (en) * | 2021-06-30 | 2021-10-01 | 赣州虔博新材料科技有限公司 | Thermal cracking resistant high-strength high-plasticity rare earth magnesium alloy and preparation method thereof |
| CN114807706A (en) * | 2022-05-16 | 2022-07-29 | 洛阳理工学院 | High-performance wrought magnesium alloy and preparation method thereof |
| CN114807707A (en) * | 2022-05-16 | 2022-07-29 | 洛阳理工学院 | High-strength wrought magnesium alloy and preparation method thereof |
| CN114921701A (en) * | 2022-05-24 | 2022-08-19 | 洛阳理工学院 | Rare earth magnesium alloy and preparation method thereof |
| CN116287919A (en) * | 2023-02-01 | 2023-06-23 | 江西师达镁合金技术有限公司 | Soluble magnesium samarium rare earth alloy and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110284036A (en) * | 2019-08-07 | 2019-09-27 | 中国科学院长春应用化学研究所 | A kind of light rare earth magnesium alloy and preparation method thereof |
| CN110284035A (en) * | 2019-08-07 | 2019-09-27 | 中国科学院长春应用化学研究所 | A kind of heat resistance magnesium alloy and preparation method thereof |
| CN111020309A (en) * | 2019-09-23 | 2020-04-17 | 山东南山铝业股份有限公司 | High-strength wrought aluminum alloy containing rare earth samarium and preparation method thereof |
| CN111218595A (en) * | 2020-01-14 | 2020-06-02 | 西安交通大学 | High-strength heat-conducting magnesium alloy and preparation method thereof |
| CN113005378A (en) * | 2021-03-03 | 2021-06-22 | 赣南师范大学 | Heat treatment process of Ag-containing Mg-Sm rare earth magnesium alloy |
| CN113234979A (en) * | 2021-06-22 | 2021-08-10 | 镁里镁(北京)科技有限公司 | High-strength rare earth wrought magnesium alloy and preparation method thereof |
| CN113462939A (en) * | 2021-06-30 | 2021-10-01 | 赣州虔博新材料科技有限公司 | Thermal cracking resistant high-strength high-plasticity rare earth magnesium alloy and preparation method thereof |
| CN113462939B (en) * | 2021-06-30 | 2022-04-15 | 赣州虔博新材料科技有限公司 | Thermal cracking resistant high-strength high-plasticity rare earth magnesium alloy and preparation method thereof |
| CN114807706A (en) * | 2022-05-16 | 2022-07-29 | 洛阳理工学院 | High-performance wrought magnesium alloy and preparation method thereof |
| CN114807707A (en) * | 2022-05-16 | 2022-07-29 | 洛阳理工学院 | High-strength wrought magnesium alloy and preparation method thereof |
| CN114807707B (en) * | 2022-05-16 | 2023-02-17 | 洛阳理工学院 | High-strength wrought magnesium alloy and preparation method thereof |
| CN114921701A (en) * | 2022-05-24 | 2022-08-19 | 洛阳理工学院 | Rare earth magnesium alloy and preparation method thereof |
| CN116287919A (en) * | 2023-02-01 | 2023-06-23 | 江西师达镁合金技术有限公司 | Soluble magnesium samarium rare earth alloy and preparation method thereof |
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Application publication date: 20181106 |