CN103074531A - Heat resistant alloy of rare earth and magnesium and preparation method thereof - Google Patents
Heat resistant alloy of rare earth and magnesium and preparation method thereof Download PDFInfo
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- CN103074531A CN103074531A CN2013100113147A CN201310011314A CN103074531A CN 103074531 A CN103074531 A CN 103074531A CN 2013100113147 A CN2013100113147 A CN 2013100113147A CN 201310011314 A CN201310011314 A CN 201310011314A CN 103074531 A CN103074531 A CN 103074531A
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- 239000000956 alloy Substances 0.000 title claims abstract description 99
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 98
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 63
- 239000011777 magnesium Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 229910052749 magnesium Inorganic materials 0.000 title claims description 29
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims description 28
- 150000002910 rare earth metals Chemical class 0.000 title abstract description 9
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 34
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 27
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims description 10
- 230000032683 aging Effects 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000007669 thermal treatment Methods 0.000 claims description 2
- 229910000861 Mg alloy Inorganic materials 0.000 abstract description 18
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 230000002277 temperature effect Effects 0.000 abstract description 5
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 238000003483 aging Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052593 corundum Inorganic materials 0.000 description 5
- 239000010431 corundum Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- -1 rare earth compound Chemical class 0.000 description 2
- 229910000691 Re alloy Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910000753 refractory alloy Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
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Abstract
本发明公开了一种耐热稀土镁合金及其制备方法，该镁合金由以下质量百分比的组分组成：6%～15%Gd，0.4%～1.5%Sm，0.3%～1%Zr，杂质元素Si、Fe、Cu和Ni总量小于0.02%，余量为Mg。同时还公开了该耐热稀土镁合金的制备方法。本发明的耐热稀土镁合金，在保持高温抗拉伸强度的同时，具有较低的成本；在室温到250℃范围内，合金的抗拉伸强度具有反常温度效应，即随着温度的升高，抗拉强度也随之提高，到达一定温度后，抗拉强度才会相对下降；在航空航天、汽车工业、武器装备等领域具有广阔的应用前景。The invention discloses a heat-resistant rare earth magnesium alloy and a preparation method thereof. The magnesium alloy is composed of the following components in mass percentage: 6%-15%Gd, 0.4%-1.5%Sm, 0.3%-1%Zr, impurities The total amount of elements Si, Fe, Cu and Ni is less than 0.02%, and the balance is Mg. At the same time, the preparation method of the heat-resistant rare earth magnesium alloy is also disclosed. The heat-resistant rare earth magnesium alloy of the present invention has lower cost while maintaining the high-temperature tensile strength; in the range from room temperature to 250°C, the tensile strength of the alloy has an abnormal temperature effect, that is, with the increase of temperature High, the tensile strength will also increase, and the tensile strength will decrease relatively after reaching a certain temperature; it has broad application prospects in aerospace, automobile industry, weaponry and other fields.
Description
Technical field
The invention belongs to the metallic substance technical field, be specifically related to a kind of heat resisting magnesium-rare earth alloy and preparation method thereof.
Background technology
Magnesium is the lightest structural metallic materials, uses increasing at automobile.The every loss of weight 100Kg of automobile, per 100 km fuel-economizing 0.5L reduces exhaust emissions simultaneously, therefore carries out the research and development of magnesium alloy for save energy, inhibition environmental pollution important in inhibiting.But, its application in aerospace, military project, automobile and other industry of the not good serious obstruction of the intensity of magnesium alloy and thermotolerance, the intensity and the thermotolerance that therefore improve magnesium alloy are the important topics of development magnesium alloy materials.
Existing heat resistance magnesium alloy is mainly started with from restriction dislocation motion and reinforcement crystal boundary, by suitable alloying, by introduce the high second-phase of thermostability, reduce element in magnesium matrix rate of diffusion or improve the purpose that the means such as grain boundary structure state and tissue morphology realize improving magnesium alloy hot strength and high temperature creep drag.At present, in all alloying elements, rare earth (RE) is to improve the most effective alloying element of magnesium alloy resistance toheat, except the function with degasification, removal of impurities, raising casting fluidity, corrosion resisting property, most of rare earth element has larger solid solubility limit to rare earth element in magnesium in magnesium alloy; And with drop in temperature, solid solubility sharply reduces, and can obtain larger degree of supersaturation, thus in ag(e)ing process subsequently diffusion-precipitation, dystectic rare earth compound phase; The all right crystal grain thinning of rare earth element, raising room temperature strength, and be distributed in intracrystalline and crystal boundary (mainly being crystal boundary) disperse, the high-melting-point rare earth compound, still can pinning intracrystalline dislocation and Grain Boundary Sliding when high temperature, thereby improved the hot strength of magnesium alloy, the rate of diffusion of rare earth (RE) element in magnesium matrix is slower simultaneously, and this is so that the Mg-RE alloy is suitable for long term operation under the comparatively high temps environment.Mg-RE(such as Mg-Gd are) alloy is important refractory alloy system, has higher hot strength and good creep property.It is alloy that the Magnesium Alloys Components of at present long term operation under 200～250 ℃ of conditions is Mg-RE, because its special valence electron structure and significant strengthening effect in magnesium alloy, make Mg-RE be tied to form an important alloy system into the development of high strength heat resistance magnesium alloy.
In the prior art, patent CN101532106B discloses a kind of heat-resistant cast rare earth magnesium alloy, component and weight percent thereof are: 7～14%Gd, 2～5%Y, 0.3～5%Sm, 0.2～0.6%Zr, impurity element S i, Fe, the total amount of Cu and Ni is less than 0.02%, surplus is Mg, this magnesium alloy has the abnormal temperature effect, has very high tensile strength at comparatively high temps, satisfy the aerospace device all is higher than 250MPa 200～250 ℃ of tensile strength requirement, but its used rare earth element kind is many, content is high, have the relatively high problem of cost, the tensile strength that can not reach a high temperature and cost are taken into account.
Summary of the invention
The purpose of this invention is to provide a kind of heat resisting magnesium-rare earth alloy, when keeping the high temperature tensile strength, have lower cost.
Another object of the present invention provides a kind of preparation method of heat resisting magnesium-rare earth alloy.
In order to realize above purpose, the technical solution adopted in the present invention is: a kind of heat resisting magnesium-rare earth alloy is comprised of the component of following mass percent: 6%～15%Gd, 0.4%～1.5%Sm, 0.3%～1%Zr, impurity element S i, Fe, Cu and Ni total amount are less than 0.02%, and surplus is Mg.
The mass percent sum of described Gd and Sm is 7.5%～16.5%.
This heat resisting magnesium-rare earth alloy is to be that the raw material melting forms by magnesium and master alloy Mg-Gd, Mg-Sm, Mg-Zr.
A kind of preparation method of heat resisting magnesium-rare earth alloy comprises the following steps:
1) with magnesium, master alloy Mg-Gd, Mg-Sm and Mg-Zr preheating;
2) with magnesium at CO
2+ SF
6Mixed gas protected lower fusing in 720～740 ℃ of adding master alloy Mg-Gd, Mg-Sm, rises to 750～780 ℃ with temperature and adds master alloy Mg-Zr;
3) after middle alloy Mg-Zr fusing, remove surface scum, keep 10min to get mixed solution after temperature is risen to 770～780 ℃;
4) after the temperature of step 3) gained mixed solution is down to 690～730 ℃, cast, get cast alloy;
5) step 4) gained cast alloy is heat-treated, namely get described heat resisting magnesium-rare earth alloy.
Preheating temperature described in the step 1) is 150～220 ℃.
When casting in the step 4) casting die is preheated to 180～250 ℃.
Thermal treatment described in the step 5) is that cast alloy is carried out solution treatment and ageing treatment successively.
The treatment temp of described solution treatment is 490～540 ℃, and the treatment time is 5～20 hours.
The treatment temp of described ageing treatment is 180～250 ℃, and the treatment time is 8～20 hours.
Heat resisting magnesium-rare earth alloy component of the present invention is Mg-Gd-Sm-Zr.It is the first component that the present invention adopts Gd, the maximum solid solution degree of Gd in Mg sosoloid is 20.3wt%, solid solubility in the time of 200 ℃ in Mg sosoloid is 3.8wt%, for guaranteeing that alloy obtains good Precipitation and strengthens and solid solution strengthening effect, the add-on of Gd is not less than 6wt%, and too many for fear of the alloy density increase, and the undue embrittlement of alloy, therefore Gd add-on of the present invention is not higher than 15wt%.It is second component that the present invention adopts Sm, and Sm can reduce the solid solubility of Gd in Mg, thereby increases the Precipitation strengthening effect of Gd; The solid solubility of Sm in magnesium is changed to: 540 ℃, and 5.7wt%; 200 ℃, 0.4wt%, more obvious and save to greatest extent cost in order to make solid solution strengthening effect, Sm add-on scope of the present invention is 0.4wt%～1.5wt%.The present invention adopts Zr as grain-refining agent, to put forward heavy alloyed toughness and the processing performance of improving alloy.
Heat resisting magnesium-rare earth alloy of the present invention, component is Mg-Gd-Sm-Zr, with respect to prior art, saved rare earth element y, and rare earth element Sm uses lower content range, and when keeping high temperature tensile strength and abnormal temperature effect, the rare earth element kind is few, content is low, has lower cost; Heat resisting magnesium-rare earth alloy of the present invention is in room temperature to 250 ℃ scope, and its tensile strength has the abnormal temperature effect, and namely along with the raising of draft temperature, tensile strength also improves thereupon, and after the arrival certain temperature, being generally 300 ℃ of tensile strength can descend; Heat resisting magnesium-rare earth alloy of the present invention has broad application prospects at aspects such as aerospace, automotive industry, weaponrys.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
The raw material magnesium Mg and master alloy Mg-Gd, Mg-Sm, the Mg-Zr that relate in the embodiment of the invention are the commercially available prod.The purity of described raw material is 99.9% Mg, 99.5% Mg-30.00%Gd, 99.5% Mg-25.11%Sm, 99.5% Mg-25.00%Zr.
Embodiment 1
The heat resisting magnesium-rare earth alloy of present embodiment is comprised of the component of following mass percent: 15%Gd, and 1.5%Sm, 0.5%Zr, impurity element S i, Fe, Cu and Ni total amount are less than 0.02%, and surplus is Mg.The mass percent sum of described Gd and Sm is 16.5%.
The preparation method of the heat resisting magnesium-rare earth alloy of present embodiment comprises the following steps:
1) magnesium, master alloy Mg-Gd, Mg-Sm and Mg-Zr are preheating to 150 ℃;
2) magnesium is put into be preheating to 500 ℃ corundum crucible, at CO
2+ SF
6Mixed gas protected lower, high-power rapid heating fusing after the magnesium ingot fusing, in 720 ℃ of adding master alloy Mg-Gd, Mg-Sm, rises to 750 ℃ with temperature and adds master alloy Mg-Zr;
3) after middle alloy Mg-Zr fusing, remove surface scum, keep 10min to get mixed solution after temperature is risen to 780 ℃;
4) will cast and be heated in advance 250 ℃ with steel die, after step 3) gained mixeding liquid temperature is down to 690 ℃, cast, get cast alloy;
5) step 4) gained cast alloy is heat-treated: 535 ℃ of solution treatment 6h, 230 ℃ of isothermal agings are processed 10h, namely get described heat resisting magnesium-rare earth alloy.
Embodiment 2
The heat resisting magnesium-rare earth alloy of present embodiment is comprised of the component of following mass percent: 6%Gd, and 1.5%Sm, 1.0%Zr, impurity element S i, Fe, Cu and Ni total amount are less than 0.02%, and surplus is Mg.The mass percent sum of described Gd and Sm is 7.5%.
The preparation method of the heat resisting magnesium-rare earth alloy of present embodiment comprises the following steps:
1) magnesium, master alloy Mg-Gd, Mg-Sm and Mg-Zr are preheating to 170 ℃;
2) magnesium is put into be preheating to 500 ℃ corundum crucible, at CO
2+ SF
6Mixed gas protected lower, high-power rapid heating fusing after the magnesium ingot fusing, in 740 ℃ of adding master alloy Mg-Gd, Mg-Sm, rises to 770 ℃ with temperature and adds master alloy Mg-Zr;
3) after middle alloy Mg-Zr fusing, remove surface scum, keep 10min to get mixed solution after temperature is risen to 775 ℃;
4) will cast and be heated in advance 240 ℃ with steel die, after step 3) gained mixeding liquid temperature is down to 710 ℃, cast, get cast alloy;
5) step 4) gained cast alloy is heat-treated: 540 ℃ of solution treatment 15h, 250 ℃ of isothermal agings are processed 8h, namely get described heat resisting magnesium-rare earth alloy.
Embodiment 3
The heat resisting magnesium-rare earth alloy of present embodiment is comprised of the component of following mass percent: 12%Gd, and 0.4%Sm, 1.0%Zr, impurity element S i, Fe, Cu and Ni total amount are less than 0.02%, and surplus is Mg.The mass percent sum of described Gd and Sm is 12.4%.
The preparation method of the heat resisting magnesium-rare earth alloy of present embodiment comprises the following steps:
1) magnesium, master alloy Mg-Gd, Mg-Sm and Mg-Zr are preheating to 190 ℃;
2) magnesium is put into be preheating to 500 ℃ corundum crucible, at CO
2+ SF
6Mixed gas protected lower, high-power rapid heating fusing after the magnesium ingot fusing, in 730 ℃ of adding master alloy Mg-Gd, Mg-Sm, rises to 780 ℃ with temperature and adds master alloy Mg-Zr;
3) after middle alloy Mg-Zr fusing, remove surface scum, keep 10min to get mixed solution after temperature is risen to 780 ℃;
4) will cast and be heated in advance 220 ℃ with steel die, after step 3) gained mixeding liquid temperature is down to 730 ℃, cast, get cast alloy;
5) step 4) gained cast alloy is heat-treated: 520 ℃ of solution treatment 5h, 200 ℃ of isothermal agings are processed 20h, namely get described heat resisting magnesium-rare earth alloy.
Embodiment 4
The heat resisting magnesium-rare earth alloy of present embodiment is comprised of the component of following mass percent: 10%Gd, and 1.0%Sm, 0.3%Zr, impurity element S i, Fe, Cu and Ni total amount are less than 0.02%, and surplus is Mg.The mass percent sum of described Gd and Sm is 11.0%.
The preparation method of the heat resisting magnesium-rare earth alloy of present embodiment comprises the following steps:
1) magnesium, master alloy Mg-Gd, Mg-Sm and Mg-Zr are preheating to 200 ℃;
2) magnesium is put into be preheating to 500 ℃ corundum crucible, at CO
2+ SF
6Mixed gas protected lower, high-power rapid heating fusing after the magnesium ingot fusing, in 735 ℃ of adding master alloy Mg-Gd, Mg-Sm, rises to 760 ℃ with temperature and adds master alloy Mg-Zr;
3) after middle alloy Mg-Zr fusing, remove surface scum, keep 10min to get mixed solution after temperature is risen to 770 ℃;
4) will cast and be heated in advance 200 ℃ with steel die, after step 3) gained mixeding liquid temperature is down to 700 ℃, cast, get cast alloy;
5) step 4) gained cast alloy is heat-treated: 500 ℃ of solution treatment 20h, 180 ℃ of isothermal agings are processed 15h, namely get described heat resisting magnesium-rare earth alloy.
Embodiment 5
The heat resisting magnesium-rare earth alloy of present embodiment is comprised of the component of following mass percent: 15%Gd, and 1.5%Sm, 0.8%Zr, impurity element S i, Fe, Cu and Ni total amount are less than 0.02%, and surplus is Mg.The mass percent sum of described Gd and Sm is 16.5%.
The preparation method of the heat resisting magnesium-rare earth alloy of present embodiment comprises the following steps:
1) magnesium, master alloy Mg-Gd, Mg-Sm and Mg-Zr are preheating to 220 ℃;
2) magnesium is put into be preheating to 500 ℃ corundum crucible, at CO
2+ SF
6Mixed gas protected lower, high-power rapid heating fusing after the magnesium ingot fusing, in 725 ℃ of adding master alloy Mg-Gd, Mg-Sm, rises to 765 ℃ with temperature and adds master alloy Mg-Zr;
3) after middle alloy Mg-Zr fusing, remove surface scum, keep 10min to get mixed solution after temperature is risen to 770 ℃;
4) will cast and be heated in advance 180 ℃ with steel die, after step 3) gained mixeding liquid temperature is down to 720 ℃, cast, get cast alloy;
5) step 4) gained cast alloy is heat-treated: 490 ℃ of solution treatment 10h, 240 ℃ of isothermal agings are processed 18h, namely get described heat resisting magnesium-rare earth alloy.
Experimental example
This experimental example carries out the tensile strength experiment to embodiment 1～5 gained heat resisting magnesium-rare earth alloy, experimental technique is: with the sample of gained heat resisting magnesium-rare earth alloy, be processed into 5 times of standard tensile samples according to standard GB/T 6397-86 " metal stretching experimental sample ", tension specimen at high temperature need to be in the requirement of sample two ends machining screw with the clamping device that satisfies the drawing by high temperature sample.Electronics is stretching on the accurate universal testing machine of Japanese Shimadzu AG-I250kN and carries out, and draw speed is 1mm/min; During drawing by high temperature, to tension specimen insulation 15min, then temperature fluctuation ± 1 ℃ stretches under relevant temperature.Experimental result is as shown in table 1:
The tensile strength experimental result of table 1 embodiment 1～5 gained heat resisting magnesium-rare earth alloy
As can be seen from Table 1, the heat resisting magnesium-rare earth alloy of embodiment 1～5, component is Mg-Gd-Sm-Zr, with respect to Comparative Examples 1～3, saved rare earth element y, and rare earth element Sm uses lower content range, when keeping high temperature tensile strength and abnormal temperature effect, the rare earth element kind is few, and content is low, has lower cost.
Claims (9)
1. heat resisting magnesium-rare earth alloy, it is characterized in that: the component by following mass percent forms: 6%～15%Gd, 0.4%～1.5%Sm, 0.3%～1%Zr, impurity element S i, Fe, Cu and Ni total amount are less than 0.02%, and surplus is Mg.
2. heat resisting magnesium-rare earth alloy according to claim 1, it is characterized in that: the mass percent sum of described Gd and Sm is 7.5%～16.5%.
3. heat resisting magnesium-rare earth alloy according to claim 1 is characterized in that: this heat resisting magnesium-rare earth alloy is to be that the raw material melting forms by magnesium and master alloy Mg-Gd, Mg-Sm, Mg-Zr.
4. the preparation method of a heat resisting magnesium-rare earth alloy as claimed in claim 1 is characterized in that: comprise the following steps:
1) with magnesium, master alloy Mg-Gd, Mg-Sm and Mg-Zr preheating;
2) with magnesium at CO
2+ SF
6Mixed gas protected lower fusing in 720～740 ℃ of adding master alloy Mg-Gd, Mg-Sm, rises to 750～780 ℃ with temperature and adds master alloy Mg-Zr;
3) after middle alloy Mg-Zr fusing, remove surface scum, keep 10min to get mixed solution after temperature is risen to 770～780 ℃;
4) after the temperature of step 3) gained mixed solution is down to 690～730 ℃, cast, get cast alloy;
5) step 4) gained cast alloy is heat-treated, namely get described heat resisting magnesium-rare earth alloy.
5. the preparation method of heat resisting magnesium-rare earth alloy according to claim 4, it is characterized in that: preheating temperature described in the step 1) is 150～220 ℃.
6. the preparation method of heat resisting magnesium-rare earth alloy according to claim 4 is characterized in that: when casting in the step 4) casting die is preheated to 180～250 ℃.
7. the preparation method of heat resisting magnesium-rare earth alloy according to claim 4, it is characterized in that: thermal treatment described in the step 5) is that cast alloy is carried out solution treatment and ageing treatment successively.
8. the preparation method of heat resisting magnesium-rare earth alloy according to claim 7, it is characterized in that: the treatment temp of described solution treatment is 490～540 ℃, the treatment time is 5～20 hours.
9. the preparation method of heat resisting magnesium-rare earth alloy according to claim 7, it is characterized in that: the treatment temp of described ageing treatment is 180～250 ℃, the treatment time is 8～20 hours.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421999A (en) * | 2013-07-15 | 2013-12-04 | 中南大学 | Rare earth-contained heat-resistant magnesium alloy and preparation method thereof |
| CN109321795A (en) * | 2018-11-01 | 2019-02-12 | 贵州航天风华精密设备有限公司 | A kind of magnesium alloy with electromagnetic shielding performance |
| CN109468513A (en) * | 2018-12-18 | 2019-03-15 | 上海交通大学 | A kind of high-strength and heat-resistant cast magnesium rare earth alloy and preparation method thereof |
| CN110423928A (en) * | 2018-02-09 | 2019-11-08 | 河南科技大学 | A kind of high-strength anti-flaming magnesium alloy |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008060A (en) * | 2006-11-30 | 2007-08-01 | 中国科学院长春应用化学研究所 | Heat-proof magnesium-base rare earth alloy and its preparation method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008060A (en) * | 2006-11-30 | 2007-08-01 | 中国科学院长春应用化学研究所 | Heat-proof magnesium-base rare earth alloy and its preparation method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421999A (en) * | 2013-07-15 | 2013-12-04 | 中南大学 | Rare earth-contained heat-resistant magnesium alloy and preparation method thereof |
| CN103421999B (en) * | 2013-07-15 | 2016-01-20 | 中南大学 | A kind of containing Heat Resistant Rare Earth-magnesium Alloy and preparation method thereof |
| CN110423928A (en) * | 2018-02-09 | 2019-11-08 | 河南科技大学 | A kind of high-strength anti-flaming magnesium alloy |
| CN109321795A (en) * | 2018-11-01 | 2019-02-12 | 贵州航天风华精密设备有限公司 | A kind of magnesium alloy with electromagnetic shielding performance |
| CN109468513A (en) * | 2018-12-18 | 2019-03-15 | 上海交通大学 | A kind of high-strength and heat-resistant cast magnesium rare earth alloy and preparation method thereof |
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