CN106893913A - A kind of high intensity fast erosion magnesium alloy and preparation method thereof - Google Patents
A kind of high intensity fast erosion magnesium alloy and preparation method thereof Download PDFInfo
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- CN106893913A CN106893913A CN201710013465.4A CN201710013465A CN106893913A CN 106893913 A CN106893913 A CN 106893913A CN 201710013465 A CN201710013465 A CN 201710013465A CN 106893913 A CN106893913 A CN 106893913A
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- magnesium alloy
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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
- C22C23/02—Alloys based on magnesium with aluminium 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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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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
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Abstract
The invention discloses a kind of high intensity fast erosion magnesium alloy and preparation method thereof, a kind of weight percentage of the chemical composition of high intensity fast erosion magnesium alloy is：2 7% Al, 1 2% Zn, 0.2% 0.6%Zr, 0.1 0.3% Si, 0.1 0.5% Mn, 0.1 0.3%Ca, 1 1.5% Fe, 0.05 5%Cu, balance of magnesium and inevitable impurity, Si and Mn are added in intermediate alloy form.The present invention has the advantages that the mechanical property such as the intensity more excellent than traditional commerce magnesium alloy, elongation percentage and hardness, creep resistance and rapidly dissolvable.
Description
Technical field
The present invention relates to a kind of magnesium alloy and preparation method thereof, particularly a kind of high intensity fast erosion magnesium alloy and its system
Preparation Method.
Background technology
According to Usa Metals association（ASM）Definition light metal material is aluminium, magnesium, three kinds of metals of titanium and its alloy.And according to
The material property of these three light metals is analyzed, it is possible to find light alloy material has that pinking processed is strong, machining property is excellent, and has back
The property received, lightweight/province can be changed, EMI suppression, corrosion resistance is good, engineer operation is good, design flexibility（One-piece part/quick system
Make, assemble, disassembling recovery；Have the processing procedure and surface-treatment applications technology of diversity）, texture/stylishness high etc., and be widely used in
Means of transport, space flight, national defence, petrochemical industry, the energy, packaging, information electronics and construction industry etc.；Although current titanium alloy application is also gradually
Popularization, but limited by the inborn characteristic of the materials such as cost, proportion and heat transfer.Magnesium alloy is to add other elements by base of magnesium
The alloy of composition.It is characterized in：Density is small（1.8g/cm3 magnesium alloys or so）, proportion is low（Light weight, magnesium alloy proportion only 1.8,
Through close to engineering plastics 1.2-1.7）And intensity foot（Matter is hard）, add excellent processability, good texture and heat transfer fast（Radiating is good to be better than
Aluminium, titanium）, specific strength is high, and, good heat dissipation bigger than elastic modelling quantity, absorb shock resistance is good, and the load-carrying ability that withstands shocks is bigger than aluminium alloy, resistance to have
The corrosive nature of machine thing and alkali is good.Magnesium alloy not only gradually replaces engineering plastics, while and the original alloy product of replacement.
However, magnesium alloy substitutes the materials such as aluminium alloy in recent years, the application development in every profession and trade is slower, and main cause is mesh
Preceding magnesium alloy also haves the shortcomings that elevated temperature strength is low, creep-resistant property is poor.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of magnesium with high intensity, high-fire resistance, high creep resistance and closes
Gold and preparation method thereof.
The present invention is achieved through the following technical solutions：A kind of weight hundred of the chemical composition of high intensity fast erosion magnesium alloy
Point content is：2-7% Al, 1-2% Zn, 0.2%-0.6%Zr, 0.1-0.3% Si, 0.1-0.5% Mn, 0.1-0.3%Ca, 1-
1.5% Fe, 0.05-5%Cu, balance of magnesium and inevitable impurity, Si and Mn are added in intermediate alloy form.
Further improvement of the present invention is：Impurity element is nickel, barium, and the total amount of impurity is less than 0.02 %.
Further improvement of the present invention is：Preparation process is as follows,
（1）By pretreated pure magnesium, Al, Zn, Zr, intermediate alloy Si-Mn, Ca and Fe, Cu, first it is preheated to respectively
100-180 DEG C, then pure magnesium, Al, Zn are placed in the mixed gas protected smelting furnaces of CO2 and SF6 and are warming up to 700-750 DEG C
Melt it；
（2）Be incubated 25-45 minutes at 700-750 DEG C after fusing, then be warming up to 750-850 DEG C, then sequentially add Zr,
Si-Mn intermediate alloys, Ca, Fe, Cu, under the protection of CO2 and SF6 and stir, and obtain fused mass, are continuously heating to
770-800 DEG C is incubated 30-50 minutes；
（3）Fused mass is cooled to 650-700 DEG C, is cast after standing 10-20 minutes, casting is advance with steel die
150-300 DEG C is heated to, the ingot casting naturally cools to room temperature, that is, high intensity fast erosion magnesium alloy of the present invention is obtained.
Beneficial effect：
The addition of 1.Mn elements, makes magnesium alloy have creep-resistant property high, and temperature in use also increases.In addition, Mn has
Certain solid solution strengthening effect, reduces the diffusivity of atom, while improving heat resistance, when also improving the use of magnesium alloy
Corrosion resistance.
2., although can improve the casting character of alloy by increasing the amount containing Al, discontinuous precipitation β phases can also be reduced
Quantity.By the addition of Si-Mn alloys, the characteristic (crystal structure, form and heat endurance) of precipitated phase is improved, improve magnesium
Draftability under the heat resistance and high temperature of alloy, and magnesium alloy mechanical property, particularly the raising of normal temperature strength is made
With very big, while alloy flowability when also substantially increasing magnesium alloy ease of solubility and fast degradation characteristic, casting, and in alkalescence
Ease of solubility or fast degradation effect are more strong in fracturing fluid, are also indispensable alloying element in acidic fracturing fluid, have
Special chemical physical action feature.
3.Zr has tension and yield strength higher, the effect of refinement is served in the magnesium alloy, hence it is evident that improve magnesium
The yield tensile ratio of alloy.
4.Ca serves refinement and creep resisting effect in the magnesium alloy, with rare-earth phase ratio, low cost.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages of the invention and effect easily.
Embodiment 1,
A kind of high intensity fast erosion magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy substrate：2% Al、1%
Zn, 0.2%Zr, 0.1% Si, 0.1% Mn, 0.3%Ca, 1% Fe, 0.05%Cu, balance of magnesium and inevitable impurity.
Preparation process is as follows,
（1）By pretreated pure magnesium, Al, Zn, Zr, intermediate alloy Si-Mn, Ca and Fe, Cu, first it is preheated to respectively
100-180 DEG C, then pure magnesium, Al, Zn are placed in the mixed gas protected smelting furnaces of CO2 and SF6 and are warming up to 700-750 DEG C
Melt it；
（2）Be incubated 25-45 minutes at 700-750 DEG C after fusing, then be warming up to 750-850 DEG C, then sequentially add Zr,
Si-Mn intermediate alloys, Ca, Fe, Cu, under the protection of CO2 and SF6 and stir, and obtain fused mass, are continuously heating to
770-800 DEG C is incubated 30-50 minutes；
（3）Fused mass is cooled to 650-700 DEG C, is cast after standing 10-20 minutes, casting is advance with steel die
150-300 DEG C is heated to, the ingot casting naturally cools to room temperature, that is, high intensity fast erosion magnesium alloy of the present invention is obtained.
The magnesium alloy tensile strength of preparation is 370MPa, elongation percentage 20%.
Embodiment 2,
A kind of high intensity fast erosion magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy substrate：7% Al、2%
Zn, 0.6%Zr, 0.3% Si, 0.5% Mn, 0.3%Ca, 1.5% Fe, 5%Cu, balance of magnesium and inevitable impurity.
Preparation process such as embodiment 1.
The magnesium alloy tensile strength of preparation is 354MPa, elongation percentage 19%.
Embodiment 3,
A kind of high intensity fast erosion magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy substrate：2% Al、1%
Zn, 0.2%Zr, 0.1% Si, 0.5% Mn, 0.1%Ca, 1.2% Fe, 1%Cu, balance of magnesium and inevitable impurity.
Preparation process such as embodiment 1.
The magnesium alloy tensile strength of preparation is 385MPa, elongation percentage 21%.
Embodiment 4,
A kind of high intensity fast erosion magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy substrate：7% Al、1%
Zn, 0.6%Zr, 0.3% Si, 0.1% Mn, 0.3%Ca, 1.3% Fe, 2%Cu, balance of magnesium and inevitable impurity.
Preparation process such as embodiment 1.
The magnesium alloy tensile strength of preparation is 372MPa, elongation percentage 18%.
Embodiment 5,
A kind of high intensity fast erosion magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy substrate：5% Al、1.5%
Zn, 0.3%Zr, 0.2% Si, 0.3% Mn, 0.2%Ca, 1.2% Fe, 4%Cu, balance of magnesium and inevitable impurity.
Preparation process such as embodiment 1.
The magnesium alloy tensile strength of preparation is 359MPa, elongation percentage 16%.
Embodiment 6,
A kind of high intensity fast erosion magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy substrate：3% Al、2%
Zn, 0.4%Zr, 0.15% Si, 0.4% Mn, 0.15%Ca, 1% Fe, 5%Cu, balance of magnesium and inevitable impurity.
Preparation process such as embodiment 1.
The magnesium alloy tensile strength of preparation is 370MPa, elongation percentage 20%.
Table 1 is the high temperature corrosion speed of the magnesium alloy that the various embodiments described above of the present invention are made.
Table 1
Be can be seen that from two performance parameter values of above-described embodiment：High intensity fast erosion magnesium alloy prepared by the present invention exists
100 DEG C, the corrosion rate in 3% KCl solution it is very fast, can avoid boring mill secondary operation high energy consumption, high cost, should not return
Row, environmental pollution, the technical barrier that can not meet high-temperature operation, the present invention have lightweight, pressure-resistant, fast decoupled performance,
It is easy to promote.
Above-mentioned specific embodiment, only illustrates technology design of the invention and architectural feature, it is therefore intended that allow and be familiar with this
The stakeholder of item technology can implement according to this, but above content is not intended to limit protection scope of the present invention, every according to this hair
Any equivalent change or modification that bright Spirit Essence is made, all should fall under the scope of the present invention.
Claims (3)
1. a kind of high intensity fast erosion magnesium alloy, it is characterised in that the weight percentage of the chemical composition of the magnesium alloy is：
2-7% Al, 1-2% Zn, 0.2%-0.6%Zr, 0.1-0.3% Si, 0.1-0.5% Mn, 0.1-0.3%Ca, 1-1.5% Fe,
0.05-5%Cu, balance of magnesium and inevitable impurity, Si and Mn are added in intermediate alloy form.
2. a kind of high intensity fast erosion magnesium alloy according to claim 1, it is characterised in that：Impurity element be nickel, barium,
The total amount of impurity is less than 0.02 %.
3. the preparation method of a kind of high intensity fast erosion magnesium alloy according to claim 1, it is characterised in that：Prepare step
It is rapid as follows,
（1）By pretreated pure magnesium, Al, Zn, Zr, intermediate alloy Si-Mn, Ca and Fe, Cu, first it is preheated to respectively
100-180 DEG C, then pure magnesium, Al, Zn are placed in the mixed gas protected smelting furnaces of CO2 and SF6 and are warming up to 700-750 DEG C
Melt it；
（2）Be incubated 25-45 minutes at 700-750 DEG C after fusing, then be warming up to 750-850 DEG C, then sequentially add Zr,
Si-Mn intermediate alloys, Ca, Fe, Cu, under the protection of CO2 and SF6 and stir, and obtain fused mass, are continuously heating to
770-800 DEG C is incubated 30-50 minutes；
（3）Fused mass is cooled to 650-700 DEG C, is cast after standing 10-20 minutes, casting is advance with steel die
150-300 DEG C is heated to, the ingot casting naturally cools to room temperature, that is, high intensity fast erosion magnesium alloy of the present invention is obtained.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107523732A (en) * | 2017-08-15 | 2017-12-29 | 太原科技大学 | A kind of magnesium alloy of fast degradation containing Na and preparation method thereof |
| CN108085548A (en) * | 2017-11-28 | 2018-05-29 | 袁颖宏 | A kind of quick dissolving has functional mechanical characteristic magnesium alloy and its manufacturing method |
| CN110016598A (en) * | 2019-04-14 | 2019-07-16 | 太原理工大学 | A kind of high intensity fast erosion magnesium alloy and preparation method thereof |
| CN111172440A (en) * | 2020-01-15 | 2020-05-19 | 太原科技大学 | Low-cost rapid-corrosion magnesium alloy and preparation method thereof |
| CN111218593A (en) * | 2020-03-09 | 2020-06-02 | 厦门火炬特种金属材料有限公司 | Preparation method of rapidly-dissolved magnesium alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104004950A (en) * | 2014-06-05 | 2014-08-27 | 宁波高新区融创新材料科技有限公司 | Easily-soluble magnesium alloy material as well as production method and application thereof |
| CN105624499A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Rapidly corroded magnesium-base alloy material and preparation method thereof |
| CN105950931A (en) * | 2016-07-20 | 2016-09-21 | 肖旅 | High-strength and high-hardness magnesium alloy in controllable reaction with water, and manufacturing method of component thereof |
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2017
- 2017-01-09 CN CN201710013465.4A patent/CN106893913A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004950A (en) * | 2014-06-05 | 2014-08-27 | 宁波高新区融创新材料科技有限公司 | Easily-soluble magnesium alloy material as well as production method and application thereof |
| CN105624499A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Rapidly corroded magnesium-base alloy material and preparation method thereof |
| CN105950931A (en) * | 2016-07-20 | 2016-09-21 | 肖旅 | High-strength and high-hardness magnesium alloy in controllable reaction with water, and manufacturing method of component thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107523732A (en) * | 2017-08-15 | 2017-12-29 | 太原科技大学 | A kind of magnesium alloy of fast degradation containing Na and preparation method thereof |
| CN108085548A (en) * | 2017-11-28 | 2018-05-29 | 袁颖宏 | A kind of quick dissolving has functional mechanical characteristic magnesium alloy and its manufacturing method |
| CN110016598A (en) * | 2019-04-14 | 2019-07-16 | 太原理工大学 | A kind of high intensity fast erosion magnesium alloy and preparation method thereof |
| CN111172440A (en) * | 2020-01-15 | 2020-05-19 | 太原科技大学 | Low-cost rapid-corrosion magnesium alloy and preparation method thereof |
| CN111172440B (en) * | 2020-01-15 | 2021-12-10 | 太原科技大学 | Low-cost rapid-corrosion magnesium alloy and preparation method thereof |
| CN111218593A (en) * | 2020-03-09 | 2020-06-02 | 厦门火炬特种金属材料有限公司 | Preparation method of rapidly-dissolved magnesium alloy |
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