CN108251731A - A kind of magnesium-rare earth and preparation method thereof - Google Patents

A kind of magnesium-rare earth and preparation method thereof Download PDF

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Publication number
CN108251731A
CN108251731A CN201810142467.8A CN201810142467A CN108251731A CN 108251731 A CN108251731 A CN 108251731A CN 201810142467 A CN201810142467 A CN 201810142467A CN 108251731 A CN108251731 A CN 108251731A
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magnesium
alloy
rare earth
preparation
temperature
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Inventor
陈君
张清
李全安
朱利敏
付三玲
陈晓亚
李梅菊
张帅
王颂博
关海昆
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Henan University of Science and Technology
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Henan University of Science and Technology
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Priority to CN201810142467.8A priority Critical patent/CN108251731A/en
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/03Making alloys by melting using master alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C23/00Alloys based on magnesium
    • C22C23/02Alloys based on magnesium with aluminium as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/06Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon

Abstract

The present invention relates to a kind of magnesium-rare earths and preparation method thereof, belong to magnesium base alloy technical field.The magnesium-rare earth of the present invention, is made of the component of following mass percent:Al 5.0~6.0%, Zn 0.8~0.9%, Mn 0.1~0.3%, Nb0.25~0.30%, Sm 0.45~0.55%, Y 0.3~0.4%, surplus are Mg and inevitable impurity.The magnesium-rare earth of the present invention, solid solubility of the Al elements in magnesium matrix is not only improved by the addition of rare earth element and niobium element, simultaneously intermetallic compound is formd in magnesium alloy, improve the stability of magnesium-rare earth corrosion-resistant surface film, reduce corrosion electric current density, the corrosion rate of magnesium alloy is substantially reduced, while significantly improves the mechanical property of magnesium alloy.

Description

A kind of magnesium-rare earth and preparation method thereof
Technical field
The present invention relates to a kind of magnesium-rare earths and preparation method thereof, belong to magnesium base alloy technical field.
Background technology
In existing metal structure material system, magnesium alloy is a kind of novel light-weight metal structural material, and tool is very high Specific strength, specific stiffness and elasticity modulus, there is excellent casting character and high damping vibration-proof performance, and processing performance It is better, it is easily recycled, there is environmental protection characteristic, have a very wide range of applications prospect, deep to be transported by aerospace, traffic The favor of the industries such as defeated, telecommunications and auto industry, becomes one of structural metallic materials of current great potential.But magnesium Alloy equally exists the shortcomings that comparison is more, for example room-temperature mechanical property is poor, and plasticity is poor, and when melting is relatively easy to burn, resistance to Corrosive nature is poor etc..
Magnesium is a kind of very active metal of chemical property, its standard electrode potential is very negative (- 2.37V), most In number surrounding medium, magnesium is most with the potential minimum oxidation film that magnesium and its alloy are formed simultaneously compared with other common metals It is more loose porous, so magnesium and corrosion stability of magnesium alloy are poor, and it is not corrosion-resistant in acid, neutral and alkalescent melt, it carries The corrosion resistance of high magnesium alloy is of great significance to expanding the use scope of magnesium alloy and prolonging the service life.By adding alloy The method of element is to improve the corrosion proof important channel of magnesium alloy, and the addition of appropriate alloying element can change in magnesium alloy Phase structure and respective corrosion potential can significantly improve the corrosion resistance of alloy, this is to solve corrosion resistance of magnesium alloy Most effective difference is also most essential method.
At present, mainly the resistance to of magnesium alloy is usually improved by adding in the member such as Al, Mn, Zn, alkaline earth and rare earth in the magnesium alloy Corrosion.In the prior art, the Chinese invention patent if application publication number is CN104250699A discloses a kind of corrosion resistant containing niobium Lose magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy:Al is 3~4.1%, Zn is 0.8~1.0%, Mn 0.3 ~0.5%, Nb is 0.01~0.02%, surplus Mg.For another example application publication number is the Chinese invention patent of CN104404329A A kind of highly corrosion resistant magnesium alloy materials are disclosed, each component mass percent is as follows in alloy material:Al:4.5~5.5%, Zn: 1.5~2%, Mn:0.1~0.3%, Y:0.1~0.5%, impurity content:Fe≤0.01%, Ni≤0.003%, Cu≤ 0.0004%, Si≤0.03%, Ca≤0.002%, remaining is magnesium.Application publication number is that the Chinese invention of CN102994840A is special Profit discloses a kind of MgAlZn heat resistance magnesium alloy, and quality percentage composition is:Al 1.5%, Zn 0.12%, Mn 0.1%, Sm 0.001%, Nb 0.001%, surplus Mg.Although the above-mentioned prior art can improve magnesium alloy corrosion resistance or Mechanical property, but its comprehensive performance is difficult to meet needs.
Invention content
The object of the present invention is to provide a kind of magnesium-rare earths with excellent corrosion resistance and mechanical property.
The present invention also provides a kind of preparation methods of above-mentioned magnesium-rare earth.
In order to achieve the goal above, technical solution is used by the magnesium-rare earth of the present invention:
A kind of magnesium-rare earth is made of the component of following mass percent:Al 5.0~6.0%, Zn 0.8~ 0.9%, Mn 0.1~0.3%, Nb 0.25~0.30%, Sm 0.45~0.55%, Y 0.3~0.4%, surplus is for Mg and not Evitable impurity.
The magnesium-rare earth of the present invention is designed by the alloying scientific formula of Al, Zn, Mn, RE, realize it is relatively low into The corrosion resistance of magnesium alloy and the purpose of mechanical property are increased substantially under this.Wherein, Al is mostly important in magnesium alloy One of alloy element, it is however generally that, it adds in Al and the raising that alloying is conducive to corrosion resistance of magnesium alloy energy is carried out to magnesium, Al's It adds in it is also possible that the skin covering of the surface of magnesium is more stable, the corrosion resistance of magnesium alloy can be improved to a certain extent.Zinc (Zn) closes magnesium The corrosion proof influence of gold mainly improves the performance of skin covering of the surface and improves the safe level of objectionable impurities Fe, Ni, Cu in the alloy. Solid solubility of the manganese (Mn) in Mg is smaller, does not form compound with Mg, can be with crystal grain thinning, while a small amount of Mn can be carried significantly The corrosion resisting property of high magnesium alloy, Mn can form high melting compound with the Impurity Fe of serious damage corrosion resistance of magnesium alloy energy It is precipitated out, reduces influence of the impurity element to corrosion stability of magnesium alloy.The addition of niobium (Nb) can refining alloy microscopic structure, The Mg-Nb phases formed can reduce the second phase and the potential difference of matrix, enhance the corrosion resistance of matrix, so as to reduce alloy Corrosion rate.The addition of a small amount of rare earth element can refining alloy crystal grain, reduce the loose and hot cracking tendency of microscopic structure, very Al-RE phases are easily formed, improve the mechanical property and corrosion resistance of magnesium alloy.It can pass through solution strengthening and the second phase simultaneously Precipitation strength improves magnesium alloy high-temperature behavior, and the present invention improves magnesium alloy by adding a small amount of rare earth element y and Sm simultaneously Tissue and high-temperature behavior, excessive add in of rare earth element can increase alloy density, it is often more important that cost of alloy can be improved, therefore originally The additive amount of Y and Sm is respectively 0.3~0.4% and 0.45~0.55% in invention.
The magnesium-rare earth of the present invention, Al elements are not only improved in magnesium matrix by the addition of rare earth element and niobium element In solid solubility, while intermetallic compound is formd in magnesium alloy, improves the stabilization of magnesium-rare earth corrosion-resistant surface film Property, reduce corrosion electric current density, hence it is evident that reduce the corrosion rate of magnesium alloy, while significantly improve the mechanical property of magnesium alloy Energy.
Preferably, the gross mass of Fe, Cu and Ni account for the mass percent of magnesium-rare earth less than 0.2% in the impurity. Not necessarily contain tri- kinds of impurity elements of Fe, Cu and Ni in impurity simultaneously, it is also possible to which there is no Fe, Cu and Ni these three impurity members Element, magnesium-rare earth of the invention only control the total amount of three kinds of impurity elements.
Technical solution is used by the preparation method of the magnesium-rare earth of the present invention:
A kind of preparation method of above-mentioned magnesium-rare earth, includes the following steps:
1) under protective atmosphere, magnesium, aluminium, zinc, manganese alloy melt are prepared;
2) and then in magnesium, aluminium, zinc, manganese alloy melt adding in magnesium-rare earth intermediate alloy, aluminium-niobium alloy heat preservation makes alloy Fusing, then removes the gred, casts, and cooling obtains cast alloy;Magnesium-the rare earth intermediate alloy for magnesium-samarium-yttrium intermediate alloy or It is made of magnesium-samarium intermediate alloy with magnesium-yttrium intermediate alloy or by least one in magnesium-samarium intermediate alloy, magnesium-yttrium intermediate alloy Kind is formed with magnesium-samarium-yttrium intermediate alloy;
3) by cast alloy be heat-treated to get.
The preparation method of the magnesium-rare earth of the present invention, simple for process, raw material sources are extensive, may be used domestic a large amount of raw Pure magnesium, fine aluminium, pure zinc, pure manganese and the magnesium-rare earth intermediate alloy of production and sale, aluminium-niobium alloy, and rare earth element can be reduced Scaling loss in fusion process reduces energy consumption and cost.
The protective atmosphere is CO2+SF6Mixed gas.
Magnesium, aluminium, zinc, manganese are melted to obtain by magnesium, aluminium, zinc, manganese alloy melt.
The heat treatment is carries out solution treatment and ageing treatment successively.The temperature of the solution treatment is 400~440 DEG C, the time is 8~12h.The temperature of the ageing treatment is 200~240 DEG C, and the time is 12~16h.
When addition alloy is melted, the temperature of fusing is 690~710 DEG C.
After slagging-off, melt temperature is risen to 715~730 DEG C, 8~15min is kept the temperature, is then cooled to 670~690 DEG C of progress Casting.
Magnesium-rare earth, aluminium-niobium alloy are preheated to 150~300 DEG C, then added in alloy molten solution.Preheating can be with The volatile impurities such as water, the oil of raw material adsorption are removed, improve alloy mass, while melt temperature caused by feeding can be inhibited Degree fluctuation.
Specific embodiment
Technical scheme of the present invention is further described below in conjunction with specific embodiment.
Raw material employed in specific embodiment are pure magnesium, fine aluminium, pure zinc, pure manganese, aluminium-niobium intermediate alloy, magnesium-dilute Native intermediate alloy;Wherein aluminium-niobium intermediate alloy is Al-25%Nb, magnesium-rare earth intermediate alloy for Mg-30%Sm intermediate alloys and Mg-30%Y intermediate alloys (% refers both to weight percent).
Embodiment 1
The magnesium-rare earth of the present embodiment is made of the component of following mass percent:Al 5.0%, Zn 0.9%, Mn 0.2%, Nb 0.25%, Sm 0.55%, Y 0.35%, surplus are Mg and inevitable impurity;Fe, Cu and Ni in impurity The mass percent that gross mass accounts for magnesium-rare earth is less than 0.2%.
The preparation method of the magnesium-rare earth of the present embodiment, includes the following steps:
1) the desired amount of raw material are weighed according to proportioning, each raw material is then preheated to 200 DEG C, then in CO2+SF6Mixing Pure magnesium, fine aluminium, pure zinc, pure manganese are put into corundum crucible and melted successively under gas shield, alloy is obtained after component is all molten Melt;
2) temperature of adjustment alloy molten solution is 700 DEG C, then add in be pre-heated to 200 DEG C magnesium-rare earth intermediate alloy, Aluminium-niobium alloy, heat preservation 10min make alloy all melt, then remove surface scum, then temperature is risen to 720 DEG C, then stop Heating stands 10min, treats that temperature is down to 680 DEG C and casts, casting steel die obtains cast alloy;
3) gained cast alloy is carried out successively solution treatment and ageing treatment to get;Solid solution temperature is 420 DEG C, Processing time is 10 hours;Aging temperature is 220 DEG C, and processing time is 14 hours.
Embodiment 2
The magnesium-rare earth of the present embodiment is made of the component of following mass percent:Al 5.5%, Zn 0.8%, Mn 0.2%, Nb 0.3%, Sm 0.5%, Y 0.35%, surplus are Mg and inevitable impurity, and Fe, Cu and Ni's is total in impurity The mass percent that quality accounts for magnesium-rare earth is less than 0.2%.
The preparation method of the magnesium-rare earth of the present embodiment, in addition to the amount of the raw material of use, remaining complete same embodiment 1。
Embodiment 3
The magnesium-rare earth of the present embodiment is made of the component of following mass percent:Al 5.5%, Zn 0.85%, Mn 0.3%, Nb 0.28%, Sm 0.45%, Y 0.3%, surplus are Mg and inevitable impurity, Fe, Cu and Ni in impurity The mass percent that gross mass accounts for magnesium-rare earth is less than 0.2%.
The preparation method of the magnesium-rare earth of the present embodiment, in addition to the amount of the raw material of use, remaining complete same embodiment 1。
Embodiment 4
The magnesium-rare earth of the present embodiment is made of the component of following mass percent:Al 6.0%, Zn 0.85%, Mn 0.1%, Nb 0.3%, Sm 0.5%, Y 0.4%, surplus are Mg and inevitable impurity, and Fe, Cu and Ni's is total in impurity The mass percent that quality accounts for magnesium-rare earth is less than 0.2%.
The preparation method of the magnesium-rare earth of the present embodiment, in addition to the amount of the raw material of use, remaining complete same embodiment 1。
Embodiment 5
The magnesium-rare earth of the present embodiment is made of the component of following mass percent:Al 5.3%, Zn 0.82%, Mn 0.15%, Nb 0.26%, Sm 0.47%, Y 0.33%, surplus are Mg and inevitable impurity, Fe, Cu and Ni in impurity Gross mass account for magnesium-rare earth mass percent be less than 0.2%.
The preparation method of the magnesium-rare earth of the present embodiment, including preparing as follows:
1) the desired amount of raw material are weighed according to proportioning, each raw material is then preheated to 150 DEG C, then in CO2+SF6Mixing Pure magnesium, fine aluminium, pure zinc, pure manganese are put into corundum crucible and melted successively under gas shield, alloy is obtained after component is all molten Melt;
2) temperature of adjustment alloy molten solution is 690 DEG C, then add in be pre-heated to 150 DEG C magnesium-rare earth intermediate alloy, Aluminium-niobium alloy, heat preservation 8min make alloy all melt, then remove surface scum, then temperature is risen to 715 DEG C, then stop Heating stands 12min, treats that temperature is down to 690 DEG C and casts, casting steel die obtains cast alloy;
3) gained cast alloy is carried out successively solution treatment and ageing treatment to get;Solid solution temperature is 400 DEG C, Processing time is 12 hours;Aging temperature is 240 DEG C, and processing time is 12 hours.
Embodiment 6
The magnesium-rare earth of the present embodiment is made of the component of following mass percent:Al 5.7%, Zn 0.88%, Mn 0.25%, Nb 0.29%, Sm 0.52%, Y 0.37%, surplus are Mg and inevitable impurity, Fe, Cu and Ni in impurity Gross mass account for magnesium-rare earth mass percent be less than 0.2%.
The preparation method of the magnesium-rare earth of the present embodiment, includes the following steps:
1) the desired amount of raw material are weighed according to proportioning, each raw material is then preheated to 300 DEG C, then in CO2+SF6Mixing Pure magnesium, fine aluminium, pure zinc, pure manganese are put into corundum crucible and melted successively under gas shield, alloy is obtained after component is all molten Melt;
2) temperature of adjustment alloy molten solution is 710 DEG C, then add in be pre-heated to 300 DEG C magnesium-rare earth intermediate alloy, Aluminium-niobium alloy, heat preservation 12min make alloy all melt, then remove surface scum, then temperature is risen to 730 DEG C, then stop Heating stands 8min, treats that temperature is down to 670 DEG C and casts, casting steel die obtains cast alloy;
3) gained cast alloy is carried out successively solution treatment and ageing treatment to get;Solid solution temperature is 440 DEG C, Processing time is 8 hours;Aging temperature is 200 DEG C, and processing time is 16 hours.
Comparative example 1
The magnesium-rare earth of this comparative example is made of the component of following mass percent:Al 1.5%, Zn 0.12%, Mn 0.1%, Sm 0.001%, Nb 0.001%, surplus Mg.
The preparation method of the magnesium-rare earth of this comparative example, except the rare earth-magnesium alloy in the raw material used is magnesium samarium alloy And outside the amount of raw material, remaining is completely the same as embodiment 1.
Comparative example 2
The magnesium-rare earth of this comparative example is made of the component of following mass percent:Al 18%, Zn 3.5%, Mn 2.2%, Y 8%, Nb 2.2%, surplus Mg.
The preparation method of the magnesium-rare earth of this comparative example, except the rare earth-magnesium alloy in the raw material used is magnesium yittrium alloy And outside the amount of raw material, remaining is completely the same as embodiment 1.
Experimental example 1
The magnesium-rare earth of Examples 1 to 6 and comparative example 1~2 is subjected to corrosion test respectively.Pass through machine before corrosion test φ 15mm × 5mm corrosion samples are made in the method for processing, are then handled using No. 2000 liquid honings, then with acetone and anhydrous Ethyl alcohol weighs initial mass of the quality as the experiment of sample after being cleaned and dried.The corrosive medium that corrosion test uses for 3.5% NaCl melts.
During corrosion experiment, corrosion sample is hung in corrosive medium and is impregnated for 24 hours, then sample is taken out to the chromium in boiling Acid+nitric acid silver aqueous fusion liquid (200g/L CrO3+10g/L AgNO3) in cleaning 5min, recycle acetone and washes of absolute alcohol drying The quality of sample after removal corrosion product is weighed with assay balance afterwards, calculates the corrosion rate of alloy according to the following formula:
K=24 (W1-W2)/(st);
Wherein K is corrosion rate (mgcm-2·d-1);W1And W2The quality (g) of sample before and after respectively corroding;S is examination Surface area (the cm of sample2);T is etching time (h).Test result is shown in Table 1.
The magnesium-rare earth of 1 Examples 1 to 6 of table and comparative example 1~2, AZ61 alloys corrosion resistance compare
Alloying component Corrosion rate (mgcm-2·d-1)
AZ61 1.94
Embodiment 1 0.43
Embodiment 2 0.45
Embodiment 3 0.39
Embodiment 4 0.41
Embodiment 5 0.29
Embodiment 6 0.34
Comparative example 1 0.85
Comparative example 2 0.97
Compared to AZ61 alloys and the magnesium-rare earth of comparative example 1~2, Examples 1 to 6 it can be seen from data in table 1 Magnesium-rare earth greatly reduce the corrosion rate of magnesium alloy.
Experimental example 2
Tensile strength of magnesium-rare earth of Examples 1 to 6 and comparative example 1~2 etc. and flame retardant property are carried out respectively Test, the results are shown in Table 2.
The performance test results of the magnesium-rare earth of 2 Examples 1 to 6 of table and comparative example 1~2
By data in table 2 it is found that compared to AZ61 alloys and the magnesium-rare earth of comparative example 1~2, Examples 1 to 6 it is dilute Native magnesium alloy not only has excellent room temperature and mechanical behavior under high temperature, while has excellent flame retardant property.Rare earth element y and Sm Mixing addition can significantly purify aluminium alloy, while be obviously improved the adhesiveness of oxidation film so that external oxidation film is more firm, So as to significantly improve the oxidation resistance of the alloy.The addition of Nb can influence the thermodynamical reaction of magnesium alloy oxidation in alloy With kinetic reaction process, the fine and close oxidation film with protective effect is formed, achievees the purpose that prevent alloy vigorous combustion.Therefore The magnesium-rare earth of the present invention equally has excellent flame retardant property.

Claims (9)

1. a kind of magnesium-rare earth, it is characterised in that:It is made of the component of following mass percent:Al 5.0~6.0%, Zn 0.8~0.9%, Mn 0.1~0.3%, Nb 0.25~0.30%, Sm 0.45~0.55%, Y 0.3~0.4%, surplus are Mg and inevitable impurity.
2. magnesium-rare earth according to claim 1, it is characterised in that:The gross mass of Fe, Cu and Ni account for dilute in the impurity The mass percent of native magnesium alloy is less than 0.2%.
3. a kind of preparation method of magnesium-rare earth as described in claim 1, it is characterised in that:Include the following steps:
1) under protective atmosphere, magnesium, aluminium, zinc, manganese alloy melt are prepared;
2) and then in magnesium, aluminium, zinc, manganese alloy melt adding in magnesium-rare earth intermediate alloy, aluminium-niobium alloy heat preservation makes alloy melting, Then it removes the gred, cast, cooling obtains cast alloy;Magnesium-the rare earth intermediate alloy for magnesium-samarium-yttrium intermediate alloy or by magnesium- Samarium intermediate alloy and magnesium-yttrium intermediate alloy composition or by least one of magnesium-samarium intermediate alloy, magnesium-yttrium intermediate alloy with Magnesium-samarium-yttrium intermediate alloy composition;
3) by cast alloy be heat-treated to get.
4. the preparation method of magnesium-rare earth according to claim 3, it is characterised in that:The heat treatment is carries out successively Solution treatment and ageing treatment.
5. the preparation method of magnesium-rare earth according to claim 4, it is characterised in that:The temperature of the solution treatment is 400~440 DEG C, the time is 8~12h.
6. the preparation method of magnesium-rare earth according to claim 4, it is characterised in that:The temperature of the ageing treatment is 200~240 DEG C, the time is 12~16h.
7. the preparation method of magnesium-rare earth according to claim 3, it is characterised in that:When addition alloy is melted, The temperature of fusing is 690~710 DEG C.
8. the preparation method of magnesium-rare earth according to claim 7, it is characterised in that:After slagging-off, by melt temperature liter To 715~730 DEG C, 8~15min is kept the temperature, 670~690 DEG C is then cooled to and casts.
9. the preparation method of magnesium-rare earth according to claim 3, it is characterised in that:By magnesium-rare earth, aluminium-niobium Alloy is preheated to 150~300 DEG C, then adds in alloy molten solution.
CN201810142467.8A 2018-02-11 2018-02-11 A kind of magnesium-rare earth and preparation method thereof Pending CN108251731A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111218594A (en) * 2018-11-26 2020-06-02 内蒙金属材料研究所 Magnesium-beryllium rare earth die-casting alloy and preparation method thereof
CN112522560A (en) * 2020-12-02 2021-03-19 太原科技大学 Magnesium alloy with corrosion resistance and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08134581A (en) * 1994-11-14 1996-05-28 Mitsui Mining & Smelting Co Ltd Production of magnesium alloy
JP2012214853A (en) * 2011-04-01 2012-11-08 Kumamoto Univ Magnesium alloy and method for producing the same
CN102994840A (en) * 2011-09-09 2013-03-27 武汉铁盟机电有限公司 MgAlZn heat resistance magnesium alloy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08134581A (en) * 1994-11-14 1996-05-28 Mitsui Mining & Smelting Co Ltd Production of magnesium alloy
JP2012214853A (en) * 2011-04-01 2012-11-08 Kumamoto Univ Magnesium alloy and method for producing the same
CN102994840A (en) * 2011-09-09 2013-03-27 武汉铁盟机电有限公司 MgAlZn heat resistance magnesium alloy

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111218594A (en) * 2018-11-26 2020-06-02 内蒙金属材料研究所 Magnesium-beryllium rare earth die-casting alloy and preparation method thereof
CN112522560A (en) * 2020-12-02 2021-03-19 太原科技大学 Magnesium alloy with corrosion resistance and preparation method thereof
CN112522560B (en) * 2020-12-02 2022-02-15 太原科技大学 Magnesium alloy with corrosion resistance and preparation method thereof

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Application publication date: 20180706