CN102965557A - Mg-8Gd-2Y-Li-Zr magnesium alloy and manufacturing method thereof - Google Patents
Mg-8Gd-2Y-Li-Zr magnesium alloy and manufacturing method thereof Download PDFInfo
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- CN102965557A CN102965557A CN2012105005290A CN201210500529A CN102965557A CN 102965557 A CN102965557 A CN 102965557A CN 2012105005290 A CN2012105005290 A CN 2012105005290A CN 201210500529 A CN201210500529 A CN 201210500529A CN 102965557 A CN102965557 A CN 102965557A
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Abstract
The invention belongs to the technical field of metal materials and metallurgy and in particular relates to Mg-8Gd-2Y-Li-Zr magnesium alloy and a manufacturing method thereof. The Mg-8Gd-2Y-Li-Zr magnesium alloy is manufactured by adding Li and Zr as alloying elements based on the existing Mg-8Gd-2Y and comprises the following components by mass percent: 0.5-4.5% of Li, 0.2-0.8% of Zr, 7.0-9.0% of Gd, 1.0-3.0% of Y and the balance of Mg. The manufacturing method comprises the following steps of casting the alloy melt in an iron crucible to obtain a cast ingot, and turning the cast ingot after heat treatment to remove surface oxidized parts so as to obtain an alloy rod of phi 46mm; and reversely extruding the alloy rod to obtain a magnesium alloy extruded rod of phi 12mm, and carrying out T6 heat treatment on the alloy extruded rod. According to the Mg-8Gd-2Y-Li-Zr magnesium alloy and the manufacturing method thereof, disclosed by the invention, the lowest extrusion temperature of the manufactured magnesium alloy can be 200 DEG C so that warm extrusion can be realized; the lowest density of the manufactured magnesium alloy at room temperature can be 1.705g/cm<3> and is lower than the density (1.732g/cm<3>) of pure magnesium; and the room-temperature mechanical properties of the manufactured magnesium alloy which is extruded at 400 DEG C and is subjected to T6 ageing are as follows: the tensile strength Rm is equal to 341.58MPa, the yield strength Rp0.2 is equal to 277.86MPa, and the elongation percentage A is equal to 12.24%.
Description
Technical field
The invention belongs to metallic substance and metallurgical technology field, particularly a kind of Mg-8Gd-2Y-Li-Zr magnesium alloy and preparation method thereof.
Background technology
Magnesium-rare earth has broad application prospects at aerospace field as a kind of high-strength heat-resistant magnesium alloy.Wherein, Mg-Gd-Y is that alloy (GW series magnesium alloy) is that Research foundation at Mg-Y and Mg-Gd two component system alloy grows up, because it has preferably mechanical behavior under high temperature, be subject at present paying attention to more and more widely famous " Mg-10Gd-3Y " " Mg-8Gd-2Y " in a series of such as this etc.Mg-Gd-Y is alloy owing to have the Precipitation sequence of very high rare earth solubleness and β ' ' → β ' → β 1 → β, therefore can realize by solution strengthening and ageing strengthening the optimization of its tissue and performance.According to the Hume-Rothery rule, only have the correction for semi-diameter when solute atoms and solvent atom could form sosoloid less than 15%, for Mg (d=0.32), Gd and Y all can form with it sosoloid.Compare other rare earth elements, Gd, the Y solid solubility in Mg is all higher, and maximum solid solution degree can reach respectively 23.5%, 12.4% (massfraction), dissolves in Mg and forms with it sosoloid, can play significant solution strengthening effect.In addition, Gd, the Y same solubility in Mg is all very high, and along with the reduction of temperature, solid solubility changes greatly, is rapid decline trend.In Mg, add Gd, Y and can form desirable precipitation strength system, the Mg that separates out in the ag(e)ing process
24Y, Mg
5Gd etc. at high temperature are difficult for decomposing mutually, and are very favourable to the high-temperature behavior that improves magnesium alloy.
Yet one of the highest as current intensity, that thermotolerance is best magnesium alloy, Mg-Gd-Y are that alloy also exists the critical problems such as the higher and plastic forming ability of density is poor, such as the density of Mg-10Gd-3Y alloy near 2g/cm
3, under laboratory condition, be difficult to realize extrusion molding below 400 ℃, then harsher to the requirement of temperature in the industry extruding.It is development and the application of alloy that these shortcomings have restricted Mg-Gd-Y greatly.Therefore, reducing Mg-Gd-Y is the density of alloy, and improving its plasticity and crystallized ability is that alloy and the Application Areas of expanding magnesium alloy are significant to developing this.
In reducing the method that Mg-Gd-Y is alloy density and its crystallized ability of raising, alloying is one of the most effective approach.Than other alloy constituent elements, Li is alloying constituent element the lightest in the magnesium alloy, and the interpolation of Li makes magnesium alloy show very good plastic deformation ability usually.This is owing to the increase along with Li content, the phase structure of alloy of alloy will occur by close-packed hexagonal-close-packed hexagonal+body-centered cubic-body-centred cubic transformation, because body-centered cubic crystal structure has higher symmetry and more sliding system, therefore show high plastic deformation ability.In addition, Li can make the axial ratio (c/a) of magnesium and magnesium alloy descend, and reduces dislocation along the critical resolved shear stress of cylinder and conical surface slippage.Therefore, along with the increase of body-centered cubic crystal structure phase content in alloy, the plasticity of magnesium alloy also increases thereupon.Zr also can obviously improve the creep resistance of alloy to the thin brilliant effect highly significant of magnesium alloy, and its mechanism is considered to, and: Zr can refinement recrystallized structure, thereby be conducive to obtain tiny equiax crystal, and the Zr solute atoms suppresses dislocation moving and impels homogeneous deformation.
Summary of the invention
For deficiency of the prior art, the object of the present invention is to provide and a kind ofly add low levels Li in the Mg-8Gd-2Y magnesium alloy and Zr improves its crystallized ability, reduces Mg-8Gd-2Y-Li-Zr magnesium alloy of texturing temperature and alloy density and preparation method thereof.
A kind of Mg-8Gd-2Y-Li-Zr magnesium alloy of the present invention take existing Mg-8Gd-2Y as base, adds Li and Zr as the alloying constituent element, its chemical constitution is by mass percentage: Li0.5% ~ 4.5%, Zr0.2 ~ 0.8%, Gd7.0 ~ 9.0%, Y1.0 ~ 3.0%, surplus are Mg.
The preparation method of a kind of Mg-8Gd-2Y-Li-Zr magnesium alloy of the present invention may further comprise the steps:
(1) adopts the melting resistance furnace, MAGNESIUM METAL is heated to 710 ℃ ~ 730 ℃ fusings, adopt No. five flux that molten metal magnesium melt is carried out purifying treatment, melt is warming up to 775 ~ 785 ℃ after stirring, add Gd, Y and Zr, treat that melt temperature is down to 655 ~ 665 ℃, add Li, be warming up to 715 ~ 725 ℃, melt left standstill 30 minutes; This fusion-casting process utilizes volume ratio to be CO
2: SF
6=20:1's is mixed gas protected, to prevent burning;
(2) metal melt is poured in the iron crucible that is preheating to 200 ℃, obtains ingot casting;
(3) with the magnesium alloy cast ingot blank thermal treatment that obtains: 300 ℃ of lower annealing 24 ~ 48 hours, then ingot casting is carried out turning, remove the surface oxidation part, be processed as the alloy bar material of Φ 46mm;
(4) utilize reverse squeezing device, on oil press, with the extrusion speed extruded alloy of 5.0m/min, obtain the extruded bar from magnesium alloy of Φ 12mm, extrusion temperature is 200 ℃ ~ 350 ℃, and extrusion ratio is 15;
(5) the alloy extruded bars carries out T6 thermal treatment, and concrete system is at 380 ℃ of lower solid solution shrend 1h, at 90 ℃ of lower timeliness thermal treatment insulation 20h.
Wherein, the alloy addition described in the step (1) is respectively by mass percentage: the Gd of adding 7.0 ~ 9.0%, 1.0 ~ 3.0% Y, 0.2 ~ 0.8% Zr, 0.5% ~ 4.5% Li, surplus are Mg.
Reverse squeezing device described in the step (4) comprises extrusion stem, extrusion mould, container, extruding pad and the extruding base of hollow.Be equipped with container at the extruding base, the container inner bottom part is equipped with the extruding pad, and extruding pad top is equipped with extrusion mould, and the extrusion mould top is equipped with the extrusion stem of hollow.Wherein extrusion mould is the right cylinder of hollow, right cylinder inside is modular angle section, pre-work band, sizing work band and outlet section from top to bottom successively, modular angle is 30 ~ 45 °, the diameter of outlet section is greater than the diameter of work band, pre-work band diameter is greater than sizing work band diameter, the ratio of two land lengths is 0.5 ~ 0.8, and the sizing land length is 4 ~ 8mm.Before the extruding, adopt grease based on molybdenum disulfide lithium as lubricant, evenly spread upon on the inwall of extrusion mould inwall, blank surface and container.
The concrete phase composite of magnesium alloy of the present invention's preparation is α-Mg, Mg
24(Gd, Y)
5And Mg
x(Gd, Y, Li)
yEtc. phase, Fig. 1 is its XRD material phase analysis result schematic diagram.
Characteristics of the present invention and beneficial effect are:
The minimum extrusion temperature of the prepared Mg-8Gd-2Y-Li-Zr magnesium alloy of the present invention can be low to moderate 200 ℃, can realize Warm Extrusion;
Its density at room temperature is minimum to be low to moderate 1.705g/cm
3, be lower than pure magnesium density (1.732 g/cm
3); Its room-temperature mechanical property after 400 ℃ of extruding add the T6 timeliness is: tensile strength R
m=341.58MPa, yield strength R
P0.2=277.86MPa, unit elongation A=12.24%.
Description of drawings
Fig. 1 is the XRD material phase analysis result of the Mg-8Gd-2Y-Li-Zr magnesium alloy for preparing of the present invention;
Fig. 2 is the typical cast structure that used for magnesium alloy metaloscope that the embodiment of the invention 1 makes is observed;
Fig. 3 is the typical cast structure that used for magnesium alloy metaloscope that the embodiment of the invention 2 makes is observed;
Fig. 4 is the tension specimen dimensioned drawing (unit: mm) of the magnesium alloy that makes of the embodiment of the invention 2;
Fig. 5 is the typical cast structure that used for magnesium alloy metaloscope that the embodiment of the invention 4 makes is observed;
Fig. 6 is the typical cast structure that used for magnesium alloy metaloscope that the embodiment of the invention 5 makes is observed.
Embodiment
The present invention will be further described below in conjunction with embodiment.
The metaloscope model of using in the present embodiment is Leica MPS30.
Mg in the present embodiment, Li adopt the form of one-level magnesium ingot (99.95%) and lithium ingot (99.9%) to add, and Gd, Y and Zr adopt the master alloy form to add, and each master alloy forms massfraction and is respectively: Mg-50%Gd, Mg-50%Y and Mg-30%Zr.
Embodiment 1
(1) adopts the melting resistance furnace, MAGNESIUM METAL is heated to 720 ℃ of fusings, adopt No. five flux that molten metal magnesium melt is carried out purifying treatment, melt is warming up to 775 ℃ after stirring, the mass percent of press magnesium alloy forms, adding contain 7%Gd the Mg-Gd master alloy, contain the Mg-Y master alloy of 2%Y and contain the Mg-Zr master alloy of 0.2% Zr, treat that melt temperature is down to 655 ℃, the Li of adding 0.5% is warming up to 715 ℃, and melt left standstill 30 minutes;
(2) above fusion-casting process utilizes volume ratio CO
2: SF
6The protection of=20:1 gas mixture is to prevent burning; Metal melt is poured in the iron crucible that is preheating to 200 ℃; Chemical analysis shows the Mg-7.46Gd-2.34Y-0.43Li-0.23Zr that consists of of ingot casting;
(3) alloy cast ingot is carried out homogenizing thermal treatment, concrete system is incubated 24 hours for being heated to 300 ℃, and the typical cast structure of alloy as shown in Figure 2 after the thermal treatment;
(4) after the thermal treatment ingot casting is carried out turning, remove the surface oxidation part, be processed as the alloy bar material of Φ 46mm, utilize reverse squeezing device, on 300 tons of oil presses, with the extrusion speed extruded alloy of 5.0m/min, obtain the extruded bar from magnesium alloy of Φ 12mm, extrusion ratio is 15.Be the minimum temperature of the realized crimp of exploring this alloy, crimp is chosen minimum temperature as far as possible and is carried out, and is 350 ℃ in this example;
(5) the alloy extruded bars carries out T6 thermal treatment subsequently, and concrete system is at 380 ℃ of lower solid solution shrend 1h, and at 90 ℃ of lower timeliness thermal treatment insulation 20h, alloy density surmounts serial professional XS analytical balance by plum Teller-Tuo benefit to be measured, and is 1.880g/cm
3
Embodiment 2
(1) adopts the melting resistance furnace, MAGNESIUM METAL is heated to 710 ℃ of fusings, adopt No. five flux that molten metal magnesium melt is carried out purifying treatment, melt is warming up to 780 ℃ after stirring, the mass percent of press magnesium alloy forms, adding contain 9%Gd the Mg-Gd master alloy, contain the Mg-Y master alloy of 2%Y and contain the Mg-Zr master alloy of 0.4% Zr, treat that melt temperature is down to 660 ℃, the Li of adding 1.5% is warming up to 720 ℃, and melt left standstill 30 minutes;
(2) above fusion-casting process utilizes volume ratio CO
2: SF
6The protection of=20:1 gas mixture is to prevent burning; Metal melt is poured in the iron crucible that is preheating to 200 ℃, and chemical analysis shows the Mg-8.42Gd-2.26Y-1.37Li-0.37Zr that consists of of ingot casting;
(3) alloy cast ingot is carried out homogenizing thermal treatment, concrete system is incubated 24 hours for being heated to 300 ℃, and the typical cast structure of alloy as shown in Figure 3 after the thermal treatment.
(4) after the thermal treatment ingot casting is carried out turning, remove the surface oxidation part, be processed as the alloy bar material of Φ 46mm, utilize reverse squeezing device, on 300 tons of oil presses, with the extrusion speed extruded alloy of 5.0m/min, obtain the extruded bar from magnesium alloy of Φ 12mm, extrusion ratio is 15.Be the minimum temperature of the realized crimp of exploring this alloy, crimp is chosen minimum temperature as far as possible and is carried out, and is 300 ℃ in this example;
(5) the alloy extruded bars carries out T6 thermal treatment subsequently, and concrete system is at 380 ℃ of lower solid solution shrend 1h, and at 90 ℃ of lower timeliness thermal treatment insulation 20h, alloy density surmounts serial professional XS analytical balance by plum Teller-Tuo benefit to be measured, and is 1.840g/cm
3
As shown in Figure 4 tension specimen is processed in its sampling, carries out room temperature tensile at the Instron8032 drawing machine, draw speed is 2mm/min, and the room temperature tensile mechanical property is as shown in table 1, and mean value is respectively: tensile strength R
m=341.58MPa, yield strength R
P0.2=277.86MPa, unit elongation A=12.24%.
Embodiment 3
(1) adopts the melting resistance furnace, MAGNESIUM METAL is heated to 720 ℃ of fusings, adopt No. five flux that molten metal magnesium melt is carried out purifying treatment, melt is warming up to 785 ℃ after stirring, the mass percent of press magnesium alloy forms, adding contain 8%Gd the Mg-Gd master alloy, contain the Mg-Y master alloy of 3%Y and contain the Mg-Zr master alloy of 0.6% Zr, treat that melt temperature is down to 665 ℃, the Li of adding 2.5% is warming up to 725 ℃, and melt left standstill 30 minutes;
(2) above fusion-casting process utilizes volume ratio CO
2: SF
6The protection of=20:1 gas mixture is to prevent burning; Metal melt is poured in the iron crucible that is preheating to 200 ℃, and chemical analysis shows the Mg-8.15Gd-2.86Y-2.26Li-0.51Zr that consists of of ingot casting;
(3) alloy cast ingot is carried out homogenizing thermal treatment, concrete system is incubated 24 hours for being heated to 300 ℃;
(4) after the thermal treatment ingot casting is carried out turning, remove the surface oxidation part, be processed as the alloy bar material of Φ 46mm, utilize reverse squeezing device, on 300 tons of oil presses, with the extrusion speed extruded alloy of 5.0m/min, obtain the extruded bar from magnesium alloy of Φ 12mm, extrusion ratio is 15.Be the minimum temperature of the realized crimp of exploring this alloy, crimp is chosen minimum temperature as far as possible and is carried out, and is 200 ℃ in this example;
(5) the alloy extruded bars carries out T6 thermal treatment subsequently, and concrete system is at 380 ℃ of lower solid solution shrend 1h, and at 90 ℃ of lower timeliness thermal treatment insulation 20h, alloy density surmounts serial professional XS analytical balance by plum Teller-Tuo benefit to be measured, and is 1.786g/cm
3
Embodiment 4
(1) adopts the melting resistance furnace, MAGNESIUM METAL is heated to 730 ℃ of fusings, adopt No. five flux that molten metal magnesium melt is carried out purifying treatment, melt is warming up to 780 ℃ after stirring, the mass percent of press magnesium alloy forms, adding contain 8%Gd the Mg-Gd master alloy, contain the Mg-Y master alloy of 2%Y and contain the Mg-Zr master alloy of 0.4% Zr, treat that melt temperature is down to 660 ℃, the Li of adding 3.5% is warming up to 720 ℃, and melt left standstill 30 minutes;
(2) above fusion-casting process utilizes volume ratio CO
2: SF
6The protection of=20:1 gas mixture is to prevent burning; Metal melt is poured in the iron crucible that is preheating to 200 ℃, and chemical analysis shows the Mg-8.85Gd-2.63Y-3.22Li-0.57Zr that consists of of ingot casting;
(3) alloy cast ingot is carried out homogenizing thermal treatment, concrete system is incubated 24 hours for being heated to 300 ℃, and the typical cast structure of alloy as shown in Figure 5 after the thermal treatment;
(4) after the thermal treatment ingot casting is carried out turning, remove the surface oxidation part, be processed as the alloy bar material of Φ 46mm, utilize reverse squeezing device, on 300 tons of oil presses, with the extrusion speed extruded alloy of 5.0m/min, obtain the extruded bar from magnesium alloy of Φ 12mm, extrusion ratio is 15.Be the minimum temperature of the realized crimp of exploring this alloy, crimp is chosen minimum temperature as far as possible and is carried out, and is 200 ℃ in this example;
(5) the alloy extruded bars carries out T6 thermal treatment subsequently, and concrete system is at 380 ℃ of lower solid solution shrend 1h, and at 90 ℃ of lower timeliness thermal treatment insulation 20h, alloy density surmounts serial professional XS analytical balance by plum Teller-Tuo benefit to be measured, and is 1.745g/cm
3
(1) adopts the melting resistance furnace, MAGNESIUM METAL is heated to 710 ℃ of fusings, adopt No. five flux that molten metal magnesium melt is carried out purifying treatment, melt is warming up to 780 ℃ after stirring, the mass percent of press magnesium alloy forms, adding contain 8%Gd the Mg-Gd master alloy, contain the Mg-Y master alloy of 1%Y and contain the Mg-Zr master alloy of 0.8% Zr, treat that melt temperature is down to 660 ℃, the Li of adding 4.5% is warming up to 720 ℃, and melt left standstill 30 minutes;
(2) above fusion-casting process utilizes volume ratio CO
2: SF
6The protection of=20:1 gas mixture is to prevent burning; Metal melt is poured in the iron crucible that is preheating to 200 ℃, and chemical analysis shows the Mg-7.68Gd-1.76Y-4.30Li-0.74Zr that consists of of ingot casting;
(3) alloy cast ingot is carried out homogenizing thermal treatment, concrete system is incubated 24 hours for being heated to 300 ℃, and the typical cast structure of alloy as shown in Figure 6 after the thermal treatment;
(4) after the thermal treatment ingot casting is carried out turning, remove the surface oxidation part, be processed as the alloy bar material of Φ 46mm, utilize reverse squeezing device, on 300 tons of oil presses, with the extrusion speed extruded alloy of 5.0m/min, obtain the extruded bar from magnesium alloy of Φ 12mm, extrusion ratio is 15.Be the minimum temperature of the realized crimp of exploring this alloy, crimp is chosen minimum temperature as far as possible and is carried out, and is 200 ℃ in this example;
(5) the alloy extruded bars carries out T6 thermal treatment subsequently, and concrete system is at 380 ℃ of lower solid solution shrend 1h, and at 90 ℃ of lower timeliness thermal treatment insulation 20h, alloy density surmounts serial professional XS analytical balance by plum Teller-Tuo benefit to be measured, and is 1.705g/cm
3
Claims (3)
1. a Mg-8Gd-2Y-Li-Zr magnesium alloy is characterized in that adding Li and Zr as the alloying constituent element take existing Mg-8Gd-2Y as base, its chemical constitution is by mass percentage: Li0.5% ~ 4.5%, Zr0.2 ~ 0.8%, Gd7.0 ~ 9.0%, Y1.0 ~ 3.0%, surplus are Mg.
2. the preparation method of a kind of Mg-8Gd-2Y-Li-Zr magnesium alloy as claimed in claim 1 is characterized in that may further comprise the steps:
(1) adopts the melting resistance furnace, MAGNESIUM METAL is heated to 710 ℃ ~ 730 ℃ fusings, adopt No. five flux that molten metal magnesium melt is carried out purifying treatment, melt is warming up to 775 ~ 785 ℃ after stirring, add Gd, Y and Zr, treat that melt temperature is down to 655 ~ 665 ℃, add Li, be warming up to 715 ~ 725 ℃, melt left standstill 30 minutes; This fusion-casting process utilizes volume ratio to be CO
2: SF
6=20:1's is mixed gas protected, to prevent burning;
(2) metal melt is poured in the iron crucible that is preheating to 200 ℃, obtains ingot casting;
(3) with the magnesium alloy cast ingot blank thermal treatment that obtains: 300 ℃ of lower annealing 24 ~ 48 hours, then ingot casting is carried out turning, remove the surface oxidation part, be processed as the alloy bar material of Φ 46mm;
(4) utilize reverse squeezing device, on oil press, with the extrusion speed extruded alloy of 5.0m/min, obtain the extruded bar from magnesium alloy of Φ 12mm, extrusion temperature is 200 ℃ ~ 350 ℃, and extrusion ratio is 15;
(5) the alloy extruded bars carries out T6 thermal treatment, and concrete system is at 380 ℃ of lower solid solution shrend 1h, at 90 ℃ of lower timeliness thermal treatment insulation 20h.
3. the preparation method of a kind of Mg-8Gd-2Y-Li-Zr magnesium alloy according to claim 2 is characterized in that the alloy addition described in the step (1) is respectively by mass percentage: adding 7.0 ~ 9.0% Gd, 1.0 ~ 3.0% Y, 0.2 ~ 0.8% Zr, 0.5% ~ 4.5% Li, surplus is Mg.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469130A (en) * | 2013-09-03 | 2013-12-25 | 广州有色金属研究院 | Thermal deformation strengthening method of rare-earth magnesium alloy |
| CN104099508A (en) * | 2014-07-28 | 2014-10-15 | 中南大学 | High-strength high-damping magnesium alloy containing rare-earth elements |
| CN108754269A (en) * | 2018-07-07 | 2018-11-06 | 中南大学 | A kind of low rare earth nano magnesium alloy preparation method of the powerful block of superelevation |
| CN110512129A (en) * | 2019-08-30 | 2019-11-29 | 中南大学 | A kind of forging torsion integrated technique preparing superelevation severe deformation magnesium alloy rod |
| CN111876641A (en) * | 2020-06-01 | 2020-11-03 | 重庆市科学技术研究院 | Magnesium alloy with high strontium (Sr) content and preparation method thereof |
| CN112111682A (en) * | 2020-07-28 | 2020-12-22 | 北京工业大学 | Beta based on island shape1High-performance deformation rare earth magnesium lithium alloy reinforced by nano precipitated phase |
| CN112775203A (en) * | 2020-12-23 | 2021-05-11 | 西部新锆核材料科技有限公司 | Preparation method of zirconium or zirconium alloy extruded section |
| CN112775202A (en) * | 2020-12-23 | 2021-05-11 | 西部新锆核材料科技有限公司 | Preparation method of zirconium or zirconium alloy rolled section |
Families Citing this family (1)
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| CN104928550B (en) * | 2015-06-16 | 2017-09-08 | 上海交通大学 | A kind of high-strength high-elasticity modulus cast magnesium alloy and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392162A (en) * | 2011-11-01 | 2012-03-28 | 西安理工大学 | Low-Gd-containing high-strength high-plasticity Mg-Li alloy and preparation method thereof |
-
2012
- 2012-11-30 CN CN201210500529.0A patent/CN102965557B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392162A (en) * | 2011-11-01 | 2012-03-28 | 西安理工大学 | Low-Gd-containing high-strength high-plasticity Mg-Li alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 何上明: "《Mg-Gd-Y-Zr(-Ca)合金的微观组织演变、性能和断裂行为研究》", 《中国博士学位论文全文数据库 工程科技I辑》, no. 5, 15 May 2011 (2011-05-15) * |
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| CN103469130A (en) * | 2013-09-03 | 2013-12-25 | 广州有色金属研究院 | Thermal deformation strengthening method of rare-earth magnesium alloy |
| CN104099508A (en) * | 2014-07-28 | 2014-10-15 | 中南大学 | High-strength high-damping magnesium alloy containing rare-earth elements |
| CN108754269A (en) * | 2018-07-07 | 2018-11-06 | 中南大学 | A kind of low rare earth nano magnesium alloy preparation method of the powerful block of superelevation |
| CN110512129A (en) * | 2019-08-30 | 2019-11-29 | 中南大学 | A kind of forging torsion integrated technique preparing superelevation severe deformation magnesium alloy rod |
| CN111876641A (en) * | 2020-06-01 | 2020-11-03 | 重庆市科学技术研究院 | Magnesium alloy with high strontium (Sr) content and preparation method thereof |
| CN112111682A (en) * | 2020-07-28 | 2020-12-22 | 北京工业大学 | Beta based on island shape1High-performance deformation rare earth magnesium lithium alloy reinforced by nano precipitated phase |
| CN112775203A (en) * | 2020-12-23 | 2021-05-11 | 西部新锆核材料科技有限公司 | Preparation method of zirconium or zirconium alloy extruded section |
| CN112775202A (en) * | 2020-12-23 | 2021-05-11 | 西部新锆核材料科技有限公司 | Preparation method of zirconium or zirconium alloy rolled section |
| CN112775203B (en) * | 2020-12-23 | 2024-01-19 | 西部新锆核材料科技有限公司 | Preparation method of zirconium or zirconium alloy extrusion profile |
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Effective date of registration: 20170511 Address after: 718000 Suide County, Shaanxi Province, the town of logistics park, the Forty Mile Patentee after: Suide Shaanxi dream magnesium alloy material Co., Ltd. Address before: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee before: Northeastern University |
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