CN109487137A - A kind of high-strength high-elongation ratio magnesium alloy and preparation method thereof - Google Patents
A kind of high-strength high-elongation ratio magnesium alloy and preparation method thereof Download PDFInfo
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- CN109487137A CN109487137A CN201910060814.7A CN201910060814A CN109487137A CN 109487137 A CN109487137 A CN 109487137A CN 201910060814 A CN201910060814 A CN 201910060814A CN 109487137 A CN109487137 A CN 109487137A
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- magnesium alloy
- elongation ratio
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- strength
- magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/04—Alloys based on magnesium with zinc or cadmium as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Extrusion Of Metal (AREA)
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Abstract
The present invention provides a kind of high-strength high-elongation ratio magnesium alloy, the component and its weight percent for including are as follows: 0.46-0.6%Zr, 5.0-6.2%Zn, Impurity Fe≤0.05%, Ni≤0.005%, Si≤0.1%, other impurities element≤0.3%, surplus Mg;The present invention substantially reduces the cost of manufacture of magnesium alloy materials, is convenient for large-scale promotion without adding rare earth alloy and realizing high-strength high-elongation ratio;In addition, the present invention adds Zn, Zr of proper proportion step by step in the magnesium alloy, not only have the function of refining crystal grain, and it can reduce hot cracking tendency, improve the performances such as intensity, the elongation percentage of alloy, magnesium alloy with traditional handicraft production is compared, and for magnesium alloy of the invention while realizing that intensity is high, elongation percentage is also high.
Description
[technical field]
The present invention relates to a kind of high-strength high-elongation ratio magnesium alloys and preparation method thereof.
[background technique]
Magnesium alloy is with density is small, intensity is high, vibration damping and noise reducing ability is strong, electromagnetic shielding performance is excellent, anti-radiation, right
The chemical stabilities of various media (alkali, kerosene, gasoline and mineral oil) is high, the features such as being easily recycled, and meets that " 21 century is green
The requirement of color structural material ", increasingly has been favored by people;In recent years, magnesium alloy the vehicles such as automobile, motorcycle,
All fields such as computer, communication, instrument and meter, household electrical appliance, space flight and aviation, defence and military are all widely applied;But mesh
Preceding magnesium alloy is using having two: one, needing to add rare earth mostly in magnesium alloy manufacture craft to improve magnesium alloy materials
Intensity and elongation percentage, result at high cost, be unfavorable for the popularization of magnesium alloy;Although rare earth can be added two, to improve magnesium and close
The intensity and hardness of gold, but in the existing magnesium alloy trade mark by all high trade mark of heat treatment realization intensity, elongation percentage be it is no,
Because current magnesium alloy preparation method can not realize all high effect of the intensity of magnesium alloy, elongation percentage by heat treatment, at some
Field needs high intensity, and when (such as when automobile outer framework) material of high-elongation, existing magnesium alloy is unable to satisfy the condition.
[summary of the invention]
The purpose of the present invention is overcoming drawbacks described above, a kind of magnesium alloy materials of high-strength high-elongation ratio are provided.
The invention adopts the following technical scheme:
A kind of high-strength high-elongation ratio magnesium alloy, the component and its weight percent for including are as follows: 0.46-0.6%Zr, 5.0-
6.2%Zn, Impurity Fe≤0.05%, Ni≤0.005%, Si≤0.1%, other impurities element≤0.3%, surplus are
Mg。
A kind of high-strength high-elongation ratio magnesium alloy one is made using refining founding, first melts magnesium ingot in crucible, in magnesium liquid temperature
Zn is added at 600-700 DEG C of degree, temperature is raised to 730-750 DEG C of addition Zr, and addition refining solvent 4-6% is refined 20-40 minutes,
660-680 DEG C of constant temperature stands 30 minutes, after sampling is qualified, casts at 660-680 DEG C of electromagnetic agitation state rodlike.
Two, the magnesium alloy cast rod after removing the peel lathe on extruder is squeezed into plate, and squeezing temperature is 320-380 DEG C,
Extrusion ratio is 25-38%.
Three, be heat-treated, allow magnesium alloy plate 175-185 DEG C solution treatment 28 hours.
The beneficial effects of the present invention are: making magnesium alloy materials without adding rare earth alloy and realizing high-strength high-elongation ratio
Cost of manufacture substantially reduce, be convenient for large-scale promotion;In addition, the present invention in the magnesium alloy step by step add proper proportion Zn,
Zr not only has the function of refining crystal grain, but also can reduce hot cracking tendency, improves the performances such as intensity, the elongation percentage of alloy, with
The magnesium alloy of traditional handicraft production is compared, and for magnesium alloy of the invention while realizing that intensity is high, elongation percentage is also high;Of the invention
The tensile strength of Properties of Magnesium Alloy is all larger than 300MPa, yield strength is greater than 250MPa, and elongation percentage is greater than 10%;Such as: weight
Percentage are as follows: 0.564%Zr, 5.15%Zn, Impurity Fe≤0.05%, Ni≤0.005%, Si≤0.1%, other impurities
Element≤0.3%, surplus are the magnesium alloy that Mg is produced, tensile strength 315.5MPa, yield strength 288.88MPa, elongation percentage
14.53%.
[specific embodiment]
In order to keep the purpose of the present invention, technical solution clearer, with reference to embodiments, the present invention is carried out further
Illustrate:
Embodiment one:
A kind of high-strength high-elongation ratio magnesium alloy, the magnesium alloy are made of Zr, Zn, Mg, and the weight percent of Zr is
The weight percent of 0.564%, Zn are 5.15%, and in the impurity element that production process generates, the weight percent of Fe is
The weight percent of 0.0031%, Ni are 0.0029%, the weight percent of Si is 0.0017%, other impurities element wt hundred
Divide than being less than or equal to 0.3%, surplus Mg.
A kind of high-strength high-elongation ratio magnesium alloy is made using refining founding, first melts magnesium ingot in crucible, in magnesium liquid temperature
Zn is added at 600 DEG C, temperature is raised to 730 DEG C of addition Zr, and addition refining solvent 5% refines 30 minutes, and 660 DEG C of constant temperature stand 30
Minute, after sampling is qualified, cast at 660 DEG C of electromagnetic agitation state rodlike;The magnesium after lathe peeling is closed on extruder
Golden casting rod is squeezed into plate, and squeezing temperature is 370 DEG C, extrusion ratio 32%;It is finally heat-treated, magnesium alloy plate is allowed to exist
175 DEG C solution treatment 28 hours.
The performance parameter of this example magnesium alloy are as follows: tensile strength 315.5MPa, yield strength 288.88MPa, elongation percentage
14.53%.
Embodiment two:
A kind of high-strength high-elongation ratio magnesium alloy, the magnesium alloy are made of Zr, Zn, Mg, and the weight percent of Zr is
The weight percent of 0.541%, Zn are 5.09%, and in the impurity element that production process generates, the weight percent of Fe is
The weight percent of 0.0028%, Ni are 0.0034%, the weight percent of Si is 0.0015%, other impurities element wt hundred
Divide than being less than or equal to 0.3%, surplus Mg.
A kind of high-strength high-elongation ratio magnesium alloy is made using refining founding, first melts magnesium ingot in crucible, in magnesium liquid temperature
Zn is added at 700 DEG C, temperature is raised to 750 DEG C of addition Zr, and addition refining solvent 5% refines 30 minutes, and 680 DEG C of constant temperature stand 30
Minute, after sampling is qualified, cast at 680 DEG C of electromagnetic agitation state rodlike;The magnesium after lathe peeling is closed on extruder
Golden casting rod is squeezed into plate, and squeezing temperature is 380 DEG C, extrusion ratio 38%;It is finally heat-treated, magnesium alloy plate is allowed to exist
185 DEG C solution treatment 28 hours.
The performance parameter of this example magnesium alloy are as follows: tensile strength 317.56MPa, yield strength 281.29MPa, elongation percentage
12.77%.
Embodiment three:
A kind of high-strength high-elongation ratio magnesium alloy, the magnesium alloy are made of Zr, Zn, Mg, and the weight percent of Zr is
The weight percent of 0.586%, Zn are 5.73%, and in the impurity element that production process generates, the weight percent of Fe is
The weight percent of 0.0029%, Ni are 0.0022%, the weight percent of Si is 0.0021%, other impurities element wt hundred
Divide than being less than or equal to 0.3%, surplus Mg.
A kind of high-strength high-elongation ratio magnesium alloy is made using refining founding, first melts magnesium ingot in crucible, in magnesium liquid temperature
Zn is added at 650 DEG C, temperature is raised to 730 DEG C of addition Zr, and addition refining solvent 5% refines 30 minutes, and 670 DEG C of constant temperature stand 30
Minute, after sampling is qualified, cast at 670 DEG C of electromagnetic agitation state rodlike;The magnesium after lathe peeling is closed on extruder
Golden casting rod is squeezed into plate, and squeezing temperature is 370 DEG C, extrusion ratio 32%;It is finally heat-treated, magnesium alloy plate is allowed to exist
175 DEG C solution treatment 28 hours.
The performance parameter of this example magnesium alloy are as follows: tensile strength 314.44MPa, yield strength 269.87MPa, elongation percentage
13.31%.
It should be noted that the magnesium alloy of the method for the invention manufacture is not only capable of being squeezed into thin plate, it can be according to need
It is squeezed into any shape.
The above is only present pre-ferred embodiments, is not intended to limit the scope of the present invention, therefore
Any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention, still fall within
Protection scope of the present invention.
Claims (5)
1. a kind of high-strength high-elongation ratio magnesium alloy, which is characterized in that the component and its weight percent for including are as follows: 0.46-
0.6%Zr, 5.0-6.2%Zn, Impurity Fe≤0.05%, Ni≤0.005%, Si≤0.1%, other impurities element≤
0.3%, surplus Mg.
2. a kind of high-strength high-elongation ratio magnesium alloy according to claim 1, which is characterized in that the component that includes and its again
Measure percentage are as follows: 0.564%Zr, 5.15%Zn, Impurity Fe≤0.05%, Ni≤0.005%, Si≤0.1%, other are miscellaneous
Prime element≤0.3%, surplus Mg.
3. a kind of preparation method of high-strength high-elongation ratio magnesium alloy according to claim 1, which is characterized in that including with
Lower step:
One, it is made using refining founding, first magnesium ingot is melted in crucible, adds Zn at 600-700 DEG C of magnesium liquid temperature, temperature is raised to
730-750 DEG C of addition Zr, addition refining solvent 4-6% are refined 20-40 minutes, and 660-680 DEG C of constant temperature stands 30 minutes, sampling
After qualification, cast at 660-680 DEG C of electromagnetic agitation state rodlike;
Two, the magnesium alloy cast rod after lathe peeling is squeezed into plate on extruder;
Three, it is heat-treated, allows magnesium alloy plate in 175-185 DEG C of solution treatment.
4. a kind of preparation method of high-strength high-elongation ratio magnesium alloy according to claim 3, it is characterised in that: it is described
Magnesium alloy cast rod after removing the peel lathe on extruder is squeezed into plate, and extruding temperature is that extruding temperature is 320-380 DEG C, squeezes
Pressure ratio is 25-38%.
5. a kind of preparation method of high-strength high-elongation ratio magnesium alloy according to claim 3, it is characterised in that: it is described into
Row heat treatment allows magnesium alloy plate in 175-185 DEG C of solution treatment, and the time is 28 hours.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115044813A (en) * | 2022-04-29 | 2022-09-13 | 北京工业大学 | Low-cost high-strength magnesium alloy material and preparation method thereof |
Citations (5)
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JP2007119823A (en) * | 2005-10-26 | 2007-05-17 | Kobe Steel Ltd | High-strength magnesium alloy extruded material |
CN101798651A (en) * | 2010-04-06 | 2010-08-11 | 重庆大学 | High-performance wrought magnesium alloy material |
CN105603283A (en) * | 2016-03-31 | 2016-05-25 | 哈尔滨理工大学 | Method for preparing and forming high-strength high-toughness wrought magnesium alloy |
CN107447151A (en) * | 2017-06-09 | 2017-12-08 | 福建坤孚股份有限公司 | A kind of magnesium alloy materials of high surface hardness |
CN109136703A (en) * | 2018-09-20 | 2019-01-04 | 贵州大学 | A kind of ZK60 magnesium alloy and preparation method thereof |
-
2019
- 2019-01-22 CN CN201910060814.7A patent/CN109487137A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007119823A (en) * | 2005-10-26 | 2007-05-17 | Kobe Steel Ltd | High-strength magnesium alloy extruded material |
CN101798651A (en) * | 2010-04-06 | 2010-08-11 | 重庆大学 | High-performance wrought magnesium alloy material |
CN105603283A (en) * | 2016-03-31 | 2016-05-25 | 哈尔滨理工大学 | Method for preparing and forming high-strength high-toughness wrought magnesium alloy |
CN107447151A (en) * | 2017-06-09 | 2017-12-08 | 福建坤孚股份有限公司 | A kind of magnesium alloy materials of high surface hardness |
CN109136703A (en) * | 2018-09-20 | 2019-01-04 | 贵州大学 | A kind of ZK60 magnesium alloy and preparation method thereof |
Non-Patent Citations (1)
Title |
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中国国家标准化管理委员会: "《中华人民共和国国家标准 变形镁及镁合金牌号和化学成分》", 1 July 2017, 中国标准出版社 * |
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CN115044813A (en) * | 2022-04-29 | 2022-09-13 | 北京工业大学 | Low-cost high-strength magnesium alloy material and preparation method thereof |
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