CN102978498A - Rare-earth magnesium alloy and preparation method thereof - Google Patents
Rare-earth magnesium alloy and preparation method thereof Download PDFInfo
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- CN102978498A CN102978498A CN201210552713XA CN201210552713A CN102978498A CN 102978498 A CN102978498 A CN 102978498A CN 201210552713X A CN201210552713X A CN 201210552713XA CN 201210552713 A CN201210552713 A CN 201210552713A CN 102978498 A CN102978498 A CN 102978498A
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Abstract
The invention relates to a rare-earth magnesium alloy and a preparation method thereof. The technical problem that the rare-earth magnesium alloy in the prior art cannot meet the requirement for industrialization is solved. The rare-earth magnesium alloy comprises the following main components in percentage by weight: 1.0 to 4.0 percent of Zn, 0.1 to 0.5 percent of Ca, 0.1 to 1.0 percent of La, 0.3 to 3.0 percent of Ce, and the balance of Mg. The heat-resistant temperature, the strength and the like of the rare-earth magnesium alloy are higher than those of the conventional magnesium alloy. The invention also provides the preparation method for the rare-earth magnesium alloy. The prepared alloy has the advantages of high strength, high toughness, low cost, good heat resistance and corrosion resistance and the like through component design of the Mg-Zn-Ca-La/Ce alloy and selection of the raw materials by combining casting, hot extrusion technology and post ageing treatment.
Description
Technical field
The present invention relates to the magnesium alloy technical field, the Mg – Zn – Ca – La/Ce that is specifically related to a kind of low-cost and high-performance is Alloy And Preparation Method.
Background technology
Magnesium alloy has high specific tenacity, specific rigidity, good damping and amortization, machinability and thermal conductivity, many premium propertiess such as stronger electromagnetic shielding ability and easily recovery, regeneration make it at the application expanding day in the national economy such as space flight and aviation, automotive industry, electron trade and national defence field.And magnesium is the lightest structural metallic materials, and density only is 1.74g/cm
3, be 2/3 of aluminium, be 1/4 of steel, magnesium alloy will have positive effect to energy-saving and emission-reduction in industrial widespread use.Therefore, magnesium alloy is described as " green engineering material of 21 century ".
Traditional magnesium alloy such as Mg – Al – Zn, Mg – Al – Mn etc. obtain a wide range of applications, and still are the magnesium alloy of present application quantity maximum.The outstanding feature of this class magnesium alloy is to have good extrusion process performance, and this is the one of the main reasons that they obtain widespread use.But these alloys all have a common shortcoming, are exactly when surpassing the 120oC use, cause the mechanical property of alloy significantly to descend owing to β phase (Mg17Al12) is softening.So people form the higher Second Phase Particle of thermostability by adding suitable alloy element in magnesium alloy, improve the mechanical property of magnesium alloy.Rare earth (Rare Earth, RE) element is used as alloy element widely owing to have unique configuration of extra-nuclear electron.Existing research finds to add high temperature tensile properties, creep property and corrosion resistance and the resistance toheat etc. that rare earth element can greatly improve magnesium alloy.But the mechanical property of existing magnesium alloy can't satisfy industrialized demand, and the higher magnesium-rare earth preparation cost of performance is higher, has limited its application in industrial production.Only have good mechanical property, the magnesium-rare earth of high performance-price ratio just can have broad application prospects.
Summary of the invention
The present invention can't satisfy the technical problem of industrialized demand for solving prior art middle-weight rare earths magnesium alloy, and a kind of high-performance is provided, cheaply magnesium-rare earth and preparation method thereof.
In order to solve the problems of the technologies described above, technical scheme of the present invention is specific as follows:
A kind of magnesium-rare earth, the main component of this magnesium-rare earth and weight percent thereof are: Zn is that 1.0 ~ 4.0%, Ca is that 0.1 ~ 0.5%, La is that 0.1 ~ 1.0%, Ce is 0.3 ~ 3.0%, and surplus is Mg.
A kind of preparation method of magnesium-rare earth, this preparation method comprises following processing step:
(1) according to weight ratio: Zn is that 1.0 ~ 4.0%, Ca is that 0.1 ~ 0.5%, La is that 0.1 ~ 1.0%, Ce is 0.3 ~ 3.0%, and surplus is Mg, the casting Mg – Zn – Ca – La/Ce alloy of getting the raw materials ready;
(2) as cast condition Mg – Zn – Ca – La/Ce alloy being carried out homogenizing processes;
(3) extrusion ingot of Φ 80 * 200mm is processed in the Mg – Zn – Ca – La/Ce alloy turning after homogenizing is processed, and alloy carries out hot extrusion again;
(4) the Mg – Zn – Ca – La/Ce alloy behind the hot extrusion deformation is carried out ageing treatment.
In the preparation method of magnesium-rare earth provided by the invention, the concrete technology step of described step (1) is as follows:
A, be that 1.0 ~ 4.0%, Ca is that 0.1 ~ 0.5%, La is that 0.1 ~ 1.0%, Ce is 0.3 ~ 3.0% according to weight ratio: Zn, surplus is Mg, gets the raw materials ready;
B, pure magnesium ingot is carried out removing surface with alcohol, and clean with cold water flush, dry up, then put into the crucible of well formula resistance furnace, pass into CO
2+ SF
6Hybrid protection gas (40:1) is heated to 740 ~ 760oC; Behind alloy melting; with pure Zn grain; La/Ce metal or the preheating of Mg – La/Ce master alloy, preheating temperature is 200 ~ 300oC, then adds pure Ca grain or Mg-Ca master alloy; and in crucible, pass into Ar gas to prevent burning; flow is 1nL/min, and the time is 1 minute, stir and leave standstill 10 minutes after; be cooled to 710 ~ 730oC and be cast in the mould, obtain Mg – Zn – Ca – La/Ce alloy.
In the preparation method of magnesium-rare earth provided by the invention, the concrete technology step of described step (2) is as follows:
As cast condition Mg – Zn – Ca – La/Ce alloy is carried out homogenizing process, temperature is 300 ~ 450oC, and temperature rise rate is 4oC/min, and soaking time is 8 ~ 64h, then 60 ~ 80oC shrend.
In the preparation method of magnesium-rare earth provided by the invention, the concrete technology step of described step (3) is as follows:
Alloy turning after the homogenizing processing is processed into the extrusion ingot of Φ 80 * 200mm, and preheating after 20 minutes under 250 ~ 400oC, utilize the horizontal extruder alloy to carry out hot extrusion, extrusion temperature is 250 ~ 400oC, extrusion ratio is 18:1, the extrusion head translational speed is 1.0 ~ 20.0mm/s, and the mould outlet place adopts 50oC water-cooled extruded rod.
In the preparation method of magnesium-rare earth provided by the invention, the concrete technology step of described step (4) is as follows:
Mg – Zn – Ca – La/Ce alloy behind the hot extrusion deformation is carried out ageing treatment, and aging temp is 150 ~ 250oC, and soaking time is 8h ~ 120h, then the 25oC water-cooled.
Technique effect of the present invention is:
Magnesium-rare earth provided by the invention, by low-cost lanthanum/cerium (La/Ce) mishmetal, zinc and calcium constituent behind adding a certain amount of extraction praseodymium (Pr), the neodymium (Nd) in pure magnesium, process and the hot extrusion deformation technology by casting, homogenizing, prepare a kind of heat resisting magnesium-rare earth alloy of low-cost high-strength.Magnesium and zinc, calcium and rare earth element can form the intermetallic compound of better heat stability in this alloy, the heat resisting temperature of magnesium alloy is increased to 200 ~ 300oC, the microalloying of La/Ce mishmetal also can significantly improve the microstructure of magnesium alloy simultaneously, greatly improve the thermal distortion working ability of alloy, be conducive to the suitability for industrialized production of alloy.In addition, the present invention has found a suitable Application Areas, has helped to alleviate the unbalanced contradiction of China's present light rare earths resource production and marketing for a large amount of lanthanums that overstock/cerium mishmetal.
The interpolation of alloy rare earth elements La/Ce of the present invention has also improved the intensity of alloy, and its intensity surpasses 350MPa, and the intensity of being out of shape at present Mg – Zn – Ca alloy generally is lower than 330 MPa;
The heat resisting temperature of alloy of the present invention can reach 200 ~ 300 ℃, is that alloy (heat resisting temperature is 200 ℃) is compared with existing Mg – Zn – Ca, and its resistance toheat has also improved.
The preparation method of magnesium-rare earth provided by the invention, topmost step is: the design of components of Mg – Zn – Ca – La/Ce alloy and the selection of raw material, its component and mass percent are: Zn is 1.0 ~ 4.0%, Ca is 0.1 ~ 0.5%, La is that 0.1 ~ 1.0%, Ce is 0.3 ~ 3.0%, and surplus is Mg.Component and mass percent thereof according to design add the raw material casting alloy, and in conjunction with Hot-extrusion and rear ageing treatment, that prepared alloy has concurrently is high-strength, high-ductility, low cost, good advantages such as heat-resisting and solidity to corrosion.
Embodiment
The specific embodiment of the present invention is:
The preparation method of magnesium-rare earth provided by the invention is specific as follows:
(1) the present invention uses commercial high purity magnesium, purity is 99.90 wt.%, Zn grain purity is 99.90 wt.%, and the purity of Ca is 99.50 wt.%, and La/Ce metal or Mg – La/Ce master alloy (composition is Mg – 15 wt.% Ce – 5 wt.% La) are as raw material; Be that 1.0 ~ 4.0%, Ca is that 0.1 ~ 0.5%, La is that 0.1 ~ 1.0%, Ce is 0.3 ~ 3.0% according to weight ratio: Zn, surplus is Mg, gets the raw materials ready; Wherein pure Ca grain can substitute with the Mg-Ca master alloy;
Pure magnesium ingot is carried out removing surface with alcohol, and clean with cold water flush, dry up, then put into the crucible of well formula resistance furnace, pass into CO
2+ SF
6Hybrid protection gas (40:1) is heated to 740 ~ 760oC; Behind alloy melting, (preheating temperature is 200 ~ 300oC) with pure Zn grain and Mg – La/Ce master alloy, then add pure Ca grain, and in crucible, pass into Ar gas to prevent burning, flow is 1nL/min, and the time is 1 minute, stir and leave standstill 10 minutes after, be cooled to 710 ~ 730oC and be cast in the 45# steel permanent type formwork for cylindrical columns, obtain Mg – Zn – Ca – La/Ce alloy;
(2) as cast condition Mg – Zn – Ca – La/Ce alloy is carried out homogenizing and process, temperature is 300 ~ 450oC, and temperature rise rate is 4oC/min, and soaking time is 8 ~ 64h, then 60 ~ 80oC shrend;
(3) extrusion ingot of Φ 80 * 200mm is processed in the alloy turning after homogenizing is processed, and preheating after 20 minutes under 250 ~ 400oC, utilize the horizontal extruder alloy to carry out hot extrusion, extrusion temperature is 250 ~ 400oC, extrusion ratio is 18:1, the extrusion head translational speed is 1.0 ~ 20.0mm/s, and the mould outlet place adopts 50oC water-cooled extruded rod (to prevent grain growth);
(4) alloy behind the hot extrusion deformation is carried out ageing treatment in heat treatment furnace, aging temp is 150 ~ 250oC, and soaking time is 8h ~ 120h, then the 25oC water-cooled.
Embodiment 1
(1) commercial high purity magnesium, purity is 99.90 wt.%, Zn grain purity is 99.90 wt.%, the purity of Ca is 99.50 wt.%, and Mg – La/Ce master alloy (composition is Mg – 15 wt.% Ce – 5 wt.% La) is raw material, is that: Zn is 1.0% according to mass percent, Ca is 0.1%, La is that 0.1%, Ce is 0.3%, and surplus is that Mg gets the raw materials ready.
Pure magnesium ingot is carried out removing surface with alcohol, and clean with cold water flush, dry up, then put into the crucible of well formula resistance furnace, pass into CO
2+ SF
6Hybrid protection gas (40:1) is heated to 740oC.Behind alloy melting, with pure Zn grain and the preheating of Mg – La/Ce master alloy, preheating temperature is 200oC, then add pure Ca grain, and pass into Ar gas to prevent burning in crucible, flow is 1nL/min, time is 1 minute, after stirring and leaving standstill 10 minutes, be cooled to 710oC and be cast in the 45# steel permanent type formwork for cylindrical columns, obtain Mg – Zn – Ca – La/Ce alloy.
(2) as cast condition Mg – Zn – Ca – La/Ce alloy is put into box heat treatment furnace, be warmed up to homogenizing target temperature 300oC, temperature rise rate is 4oC/min, and soaking time is 8h, then 60oC shrend.
(3) alloy after homogenizing is processed is processed into the extrusion ingot of Φ 80 * 200mm, and preheating after 20 minutes under 250oC, utilize the horizontal extruder alloy to carry out hot extrusion, extrusion temperature is 250oC, extrusion ratio is 18:1, the extrusion head translational speed is 1.0mm/s, and the mould outlet place adopts 50oC water-cooled extruded rod.
(4) alloy behind the hot extrusion deformation is carried out ageing treatment in heat treatment furnace, aging temp is 150oC, and soaking time is 120h, then the 25oC water-cooled.
Embodiment 2
(1) commercial high purity magnesium, purity is 99.90 wt.%, Zn grain purity is 99.90 wt.%, Mg – 30 wt.% Ca master alloys, Mg – La/Ce master alloy (composition is Mg – 15 wt.% Ce – 5 wt.% La) is raw material, is that: Zn is 1.0% according to mass percent, Ca is 0.1%, La is that 0.1%, Ce is 0.3%, and surplus is that Mg gets the raw materials ready.
Pure magnesium ingot is carried out removing surface with alcohol, and clean with cold water flush, dry up, then put into the crucible of well formula resistance furnace, pass into CO
2+ SF
6Hybrid protection gas (40:1) is heated to 740oC.Behind alloy melting, with pure Zn grain and the preheating of Mg – La/Ce master alloy, preheating temperature is 200oC, then add Mg – Ca master alloy, after stirring and leaving standstill 10 minutes, be cooled to 710oC and be cast in the 45# steel permanent type formwork for cylindrical columns, obtain Mg – Zn – Ca – La/Ce alloy.
(2) as cast condition Mg – Zn – Ca – La/Ce alloy is put into box heat treatment furnace, is warmed up to homogenizing target temperature 300oC, and temperature rise rate is 4oC/min, and soaking time is 8h, then 60oC shrend.
(3) alloy after homogenizing is processed is processed into the extrusion ingot of Φ 80 * 200mm, and preheating after 20 minutes under 250oC, utilize the horizontal extruder alloy to carry out hot extrusion, extrusion temperature is 250oC, extrusion ratio is 18:1, the extrusion head translational speed is 1.0mm/s, and the mould outlet place adopts 50oC water-cooled extruded rod.
(4) alloy behind the hot extrusion deformation is carried out ageing treatment in heat treatment furnace, aging temp is 150oC, and soaking time is 120h, then the 25oC water-cooled.
Embodiment 3
(1) commercial high purity magnesium, purity is 99.90 wt.%, Zn grain purity is 99.90 wt.%, Mg – 30 wt.% Ca master alloys, La/Ce metal, purity is that 99.50 wt.% are raw material, according to mass percent be: Zn is that 1.0%, Ca is that 0.1%, La is 0.1%, Ce is 0.3%, and surplus is that Mg gets the raw materials ready.
Pure magnesium ingot is carried out removing surface with alcohol, and clean with cold water flush, dry up, then put into the crucible of well formula resistance furnace, pass into CO
2+ SF
6Hybrid protection gas (40:1) is heated to 740oC.Behind alloy melting, with pure Zn grain and the preheating of La/Ce metal, preheating temperature is 200oC, then add Mg – Ca master alloy, after stirring and leaving standstill 10 minutes, be cooled to 710oC and be cast in the 45# steel permanent type formwork for cylindrical columns, obtain Mg – Zn – Ca – La/Ce alloy.
(2) as cast condition Mg – Zn – Ca – La/Ce alloy is put into box heat treatment furnace, be warmed up to homogenizing target temperature 300oC, temperature rise rate is 4oC/min, and soaking time is 8h, then 60oC shrend.
(3) alloy after homogenizing is processed is processed into the extrusion ingot of Φ 80 * 200mm, and preheating after 20 minutes under 250oC, utilize the horizontal extruder alloy to carry out hot extrusion, extrusion temperature is 250oC, extrusion ratio is 18:1, the extrusion head translational speed is 1.0mm/s, and the mould outlet place adopts 50oC water-cooled extruded rod.
(4) alloy behind the hot extrusion deformation is carried out ageing treatment in heat treatment furnace, aging temp is 150oC, and soaking time is 120h, then the 25oC water-cooled.
Embodiment 4
(1) commercial high purity magnesium, purity is 99.90 wt.%, Zn grain purity is 99.90 wt.%, the purity of Ca is 99.50 wt.%, and Mg – La/Ce master alloy (composition is Mg – 15 wt.% Ce – 5 wt.% La) is raw material, is that: Zn is 2.0% according to mass percent, Ca is 0.3%, La is that 0.5%, Ce is 1.5%, and surplus is that Mg gets the raw materials ready.
Pure magnesium ingot is carried out removing surface with alcohol, and clean with cold water flush, dry up, then put into the crucible of well formula resistance furnace, pass into CO
2+ SF
6Hybrid protection gas (40:1) is heated to 750oC.Behind alloy melting, with pure Zn grain and the preheating of Mg – La/Ce master alloy, preheating temperature is 250oC, then add pure Ca grain, and pass into Ar gas to prevent burning in crucible, flow is 1nL/min, time is 1 minute, after stirring and leaving standstill 10 minutes, be cooled to 720oC and be cast in the 45# steel permanent type formwork for cylindrical columns, obtain Mg – Zn – Ca – La/Ce alloy.
(2) as cast condition Mg – Zn – Ca – La/Ce alloy is put into box heat treatment furnace, be warmed up to homogenizing target temperature 350oC, temperature rise rate is 4oC/min, and soaking time is 32h, then 70oC shrend.
(3) alloy after homogenizing is processed is processed into the extrusion ingot of Φ 80 * 200mm, and preheating after 20 minutes under 300oC, utilize the horizontal extruder alloy to carry out hot extrusion, extrusion temperature is 300oC, extrusion ratio is 18:1, the extrusion head translational speed is 5.0mm/s, and the mould outlet place adopts 50oC water-cooled extruded rod.
(4) alloy behind the hot extrusion deformation is carried out ageing treatment in heat treatment furnace, aging temp is 180oC, and soaking time is 64h, then the 25oC water-cooled.
Embodiment 5
(1) commercial high purity magnesium, purity is 99.90 wt.%, Zn grain purity is 99.90 wt.%, the purity of Ca is 99.50 wt.%, and Mg – La/Ce master alloy (composition is Mg – 15 wt.% Ce – 5 wt.% La) is raw material, is that: Zn is 4.0% according to mass percent, Ca is 0.5%, La is that 1.0%, Ce is 3.0%, and surplus is that Mg gets the raw materials ready.
Pure magnesium ingot is carried out removing surface with alcohol, and clean with cold water flush, dry up, then put into the crucible of well formula resistance furnace, pass into CO
2+ SF
6Hybrid protection gas (40:1) is heated to 760oC.Behind alloy melting, with pure Zn grain and the preheating of Mg – La/Ce master alloy, preheating temperature is 300oC, then add pure Ca grain, and pass into Ar gas to prevent burning in crucible, flow is 1nL/min, time is 1 minute, after stirring and leaving standstill 10 minutes, be cooled to 730oC and be cast in the 45# steel permanent type formwork for cylindrical columns, obtain Mg – Zn – Ca – La/Ce alloy.
(2) as cast condition Mg – Zn – Ca – La/Ce alloy is put into box heat treatment furnace, be warmed up to homogenizing target temperature 450oC, temperature rise rate is 4oC/min, and soaking time is 64h, then 80oC shrend.
(3) alloy after homogenizing is processed is processed into the extrusion ingot of Φ 80 * 200mm, and preheating after 20 minutes under 400oC, utilize the horizontal extruder alloy to carry out hot extrusion, extrusion temperature is 400oC, extrusion ratio is 18:1, the extrusion head translational speed is 20.0mm/s, and the mould outlet place adopts 50oC water-cooled extruded rod.
(4) alloy behind the hot extrusion deformation is carried out ageing treatment in heat treatment furnace, aging temp is 250oC, and soaking time is 8h, then the 25oC water-cooled.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.
Claims (6)
1. a magnesium-rare earth is characterized in that, the main component of this magnesium-rare earth and weight percent thereof are: Zn is that 1.0 ~ 4.0%, Ca is that 0.1 ~ 0.5%, La is that 0.1 ~ 1.0%, Ce is 0.3 ~ 3.0%, and surplus is Mg.
2. the preparation method of magnesium-rare earth as claimed in claim 1 is characterized in that, this preparation method comprises following processing step:
(1) according to weight ratio: Zn is that 1.0 ~ 4.0%, Ca is that 0.1 ~ 0.5%, La is that 0.1 ~ 1.0%, Ce is 0.3 ~ 3.0%, and surplus is Mg, the casting Mg – Zn – Ca – La/Ce alloy of getting the raw materials ready;
(2) as cast condition Mg – Zn – Ca – La/Ce alloy being carried out homogenizing processes;
(3) extrusion ingot of Φ 80 * 200mm is processed in the Mg – Zn – Ca – La/Ce alloy turning after homogenizing is processed, and alloy carries out hot extrusion again;
(4) the Mg – Zn – Ca – La/Ce alloy behind the hot extrusion deformation is carried out ageing treatment.
3. the preparation method of magnesium-rare earth as claimed in claim 2 is characterized in that, the concrete technology step of described step (1) is as follows:
A, be that 1.0 ~ 4.0%, Ca is that 0.1 ~ 0.5%, La is that 0.1 ~ 1.0%, Ce is 0.3 ~ 3.0% according to weight ratio: Zn, surplus is Mg, gets the raw materials ready;
B, pure magnesium ingot is carried out removing surface with alcohol, and clean with cold water flush, dry up, then put into the crucible of well formula resistance furnace, pass into CO
2+ SF
6Hybrid protection gas (40:1) is heated to 740 ~ 760oC; Behind alloy melting; with pure Zn grain; La/Ce metal or the preheating of Mg – La/Ce master alloy, preheating temperature is 200 ~ 300oC, then adds pure Ca grain or Mg-Ca master alloy; and in crucible, pass into Ar gas to prevent burning; flow is 1nL/min, and the time is 1 minute, stir and leave standstill 10 minutes after; be cooled to 710 ~ 730oC and be cast in the mould, obtain Mg – Zn – Ca – La/Ce alloy.
4. the preparation method of magnesium-rare earth as claimed in claim 2 is characterized in that, the concrete technology step of described step (2) is as follows:
As cast condition Mg – Zn – Ca – La/Ce alloy is carried out homogenizing process, temperature is 300 ~ 450oC, and temperature rise rate is 4oC/min, and soaking time is 8 ~ 64h, then 60 ~ 80oC shrend.
5. the preparation method of magnesium-rare earth as claimed in claim 2 is characterized in that, the concrete technology step of described step (3) is as follows:
Alloy turning after the homogenizing processing is processed into the extrusion ingot of Φ 80 * 200mm, and preheating after 20 minutes under 250 ~ 400oC, utilize the horizontal extruder alloy to carry out hot extrusion, extrusion temperature is 250 ~ 400oC, extrusion ratio is 18:1, the extrusion head translational speed is 1.0 ~ 20.0mm/s, and the mould outlet place adopts 50oC water-cooled extruded rod.
6. the preparation method of magnesium-rare earth as claimed in claim 2 is characterized in that, the concrete technology step of described step (4) is as follows:
Mg – Zn – Ca – La/Ce alloy behind the hot extrusion deformation is carried out ageing treatment, and aging temp is 150 ~ 250oC, and soaking time is 8h ~ 120h, then the 25oC water-cooled.
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| CN104046867A (en) * | 2014-06-26 | 2014-09-17 | 宝山钢铁股份有限公司 | High-plasticity heat-conducting magnesium alloy and preparation method thereof |
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| CN107043880A (en) * | 2017-06-27 | 2017-08-15 | 佛山科学技术学院 | A kind of rare earth heat conductive magnesium alloy and preparation method thereof |
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| CN105755340A (en) * | 2014-12-17 | 2016-07-13 | 宝山钢铁股份有限公司 | Low-cost high-strength high-toughness high-thermal conductivity wrought magnesium alloy and preparation method thereof |
| WO2016161565A1 (en) * | 2015-04-08 | 2016-10-13 | Baoshan Iron & Steel Co., Ltd. | Formable magnesium based wrought alloys |
| WO2016161566A1 (en) * | 2015-04-08 | 2016-10-13 | Baoshan Iron & Steel Co., Ltd. | Strain-induced age strengthening in dilute magnesium alloy sheets |
| CN107532249A (en) * | 2015-04-08 | 2018-01-02 | 宝山钢铁股份有限公司 | Formable magnesium-based wrought alloy |
| CN107532250A (en) * | 2015-04-08 | 2018-01-02 | 宝山钢铁股份有限公司 | Strain inducing ageing strengthening in dilute magnesium alloy plate |
| US10570490B2 (en) | 2015-04-08 | 2020-02-25 | Baoshan Iron & Steel Co., Ltd. | Strain-induced age strengthening in dilute magnesium alloy sheets |
| CN105543603A (en) * | 2016-02-05 | 2016-05-04 | 重庆大学 | Low-rare-earth high-strength deforming magnesium alloy and preparation method thereof |
| CN105543603B (en) * | 2016-02-05 | 2017-04-19 | 重庆大学 | Low-rare-earth high-strength deforming magnesium alloy and preparation method thereof |
| CN107043880A (en) * | 2017-06-27 | 2017-08-15 | 佛山科学技术学院 | A kind of rare earth heat conductive magnesium alloy and preparation method thereof |
| CN109576521A (en) * | 2018-12-20 | 2019-04-05 | 哈尔滨理工大学 | A kind of processing method using magnesium-rare earth recycling waste material processing high strength rare earth magnesium alloy material |
| CN109576521B (en) * | 2018-12-20 | 2020-06-09 | 哈尔滨理工大学 | Processing method for processing high-strength rare earth magnesium alloy material by utilizing rare earth magnesium alloy recycling waste |
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Application publication date: 20130320 |