CN110066948B - High-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and preparation method thereof - Google Patents
High-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and preparation method thereof Download PDFInfo
- Publication number
- CN110066948B CN110066948B CN201910353437.6A CN201910353437A CN110066948B CN 110066948 B CN110066948 B CN 110066948B CN 201910353437 A CN201910353437 A CN 201910353437A CN 110066948 B CN110066948 B CN 110066948B
- Authority
- CN
- China
- Prior art keywords
- magnesium alloy
- wrought magnesium
- plasticity
- strength
- wrought
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 151
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000011572 manganese Substances 0.000 claims abstract description 68
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 67
- 238000001125 extrusion Methods 0.000 claims abstract description 57
- 239000011777 magnesium Substances 0.000 claims abstract description 56
- 239000000956 alloy Substances 0.000 claims abstract description 47
- 239000011575 calcium Substances 0.000 claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 44
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000011701 zinc Substances 0.000 claims abstract description 43
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 42
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 42
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 42
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 42
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 19
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 18
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 238000003723 Smelting Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 45
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 229910052786 argon Inorganic materials 0.000 claims description 15
- KBMLJKBBKGNETC-UHFFFAOYSA-N magnesium manganese Chemical compound [Mg].[Mn] KBMLJKBBKGNETC-UHFFFAOYSA-N 0.000 claims description 13
- 238000010791 quenching Methods 0.000 claims description 13
- 230000000171 quenching effect Effects 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005303 weighing Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 14
- 239000002184 metal Substances 0.000 abstract description 14
- 238000000265 homogenisation Methods 0.000 abstract description 13
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 22
- 229910002804 graphite Inorganic materials 0.000 description 11
- 239000010439 graphite Substances 0.000 description 11
- 238000005461 lubrication Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 229910052761 rare earth metal Inorganic materials 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910018131 Al-Mn Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910018461 Al—Mn Inorganic materials 0.000 description 1
- 229910000882 Ca alloy Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and a preparation method thereof, belonging to the field of wrought magnesium alloy materials. The wrought magnesium alloy comprises the following components in percentage by mass: calcium: 0.50-3.20%; aluminum: 0.30-3.50%; zinc: 0.10-1.00%; manganese: 0.10-3.00%; cerium: 0.10 to 0.50% and the balance of magnesium and inevitable impurities. The preparation method comprises the following steps: firstly melting a pure magnesium ingot, adding metal calcium, aluminum, zinc, cerium, manganese and the like after fully melting, casting the mixture into an ingot after fully stirring, then carrying out homogenization treatment on the ingot, extruding the ingot by a reverse extrusion process to obtain a corresponding extruded section, and preparing the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy by smelting, homogenization treatment and a subsequent extrusion (reverse extrusion) process, wherein the strength and toughness of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy are enhanced, and the high-strength high-plasticity Mg-Ca-Al-Mn-Ce wrought magnesium alloy has.
Description
Technical Field
The invention belongs to the field of magnesium alloy materials, and particularly relates to a high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and a preparation method thereof.
Background
With the increasing severity of environmental problems and resource shortage in recent years, energy conservation and consumption reduction become problems which need to be solved urgently. The light material can reduce the energy consumption level to a great extent, and has important significance for improving the energy utilization rate and protecting the environment. As the lightest metal structural material at present, the density of magnesium is only 1.74g/cm 32/3 only equivalent to aluminum and 1/4 equivalent to steel, has higher specific strength and specific rigidity, and damping and shock-absorbing propertiesGood machinability and good thermal conductivity, and is particularly recyclable, and is called a "green engineering material" in the 21 st century. However, since magnesium alloys themselves have lower strength than steel and aluminum alloys, the industrial application of magnesium alloys has been limited. The method for improving the strength of the magnesium alloy has been researched a lot, and the strength of the magnesium alloy can be obviously improved by adding proper alloy elements into a magnesium matrix and through strong precipitation strengthening, fine crystal strengthening and other effects in the heat treatment deformation process. For example, the recently developed ultrahigh strength deformation Mg-Gd-Y-Zn-Zr alloy with heavy rare earth Gd and Y content of more than 13 wt.% has the tensile strength of 500MPa after deformation and aging treatment. However, the addition of high amounts of rare earth elements adds to the cost of the alloy. And the addition of rare earth elements increases the density of the alloy and limits the application of the alloy. Therefore, other suitable elements are required to replace rare earth elements to develop low-cost high-strength wrought magnesium alloys.
In recent years, many studies on the effects of wrought magnesium alloys and elements such as Ca, Al, Zn, Mn, Ce, etc. in magnesium alloys have been focused on. According to the magnesium alloy, alloy elements such as aluminum, calcium, zinc, manganese and cerium are added to fully utilize fine crystal strengthening and second phase strengthening, so that a novel low-cost high-mechanical-property wrought magnesium alloy is developed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and a preparation method thereof, and the wrought magnesium alloy which does not contain rare earth and has toughness is prepared.
A high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following components in percentage by mass: calcium: 0.50-3.20%; aluminum: 0.30-3.50%; zinc: 0.10-1.00%; manganese: 0.10-3.00%; cerium: 0.10 to 0.50% and the balance of magnesium and inevitable impurities.
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy has the following tensile strength: 362-449 MPa, yield strength: 352-435 MPa, and the elongation is as follows: 4-13%.
A preparation method of a high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy specifically comprises the following steps:
step 1, preparing materials:
weighing required raw materials according to the mass percentage of Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy components;
(1) under the protection of protective gas, adding the raw materials in two batches: in the first batch: adding pure magnesium, heating to 740-780 ℃, fully stirring and completely melting; and (3) second batch: adding pure aluminum, pure calcium, pure zinc, pure cerium, manganese or magnesium-manganese intermediate alloy; fully stirring for 3-6 min to form alloy melt;
(2) controlling the temperature of the alloy melt at 700-750 ℃, standing for 10-20 min, removing floating slag on the surface, and casting the alloy melt into an iron mold preheated to 200-350 ℃ to prepare a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air, heating to 480-520 ℃, preserving heat for 20-50 hours, and performing water quenching to obtain a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
and 4, carrying out reverse extrusion:
preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 230-350 ℃ for 15min, and carrying out reverse extrusion at 230-350 ℃, wherein the extrusion ratio is (10-30) to 1, and the extrusion speed is 0.01-2 m/min, so as to obtain the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy.
In the step 1, the raw materials of magnesium, aluminum, calcium and cerium are pure metals, and the manganese is pure manganese or manganese intermediate alloy.
In the step 2(1), the protective gas is high-purity argon.
In the step 3, the method for isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air comprises the following steps: covering with graphite powder or in vacuum environment or under protective gas to isolate air, wherein the protective gas is argon, helium or nitrogen.
In the step 4, the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy is an alloy bar, and the diameter of the bar is 8.5-15 mm.
Has the advantages that:
(1) the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy is a novel non-rare earth wrought magnesium alloy with toughness and toughness, and Zn, Mn and Ce are added on the basis of the Mg-Al-Ca alloy, so that the alloy structure after thermal deformation can be strongly refined, and Mg, the alloy structure after thermal deformation, namely Mg2Ca、Al2Ca、(Mg，Al)2The Ca phase and the Al-Mn phase are dispersed and distributed on a matrix or a crystal boundary, so that the strength and the toughness of the alloy are ensured; the addition of the alloy element Al can improve the strength in a solid solution mode; the strength can be improved in a solid solution form by adding the alloy element Zn; the addition of the alloy element Mn can strongly promote recrystallization and further reduce the grain size of the alloy;
(2) the novel wrought magnesium alloy with toughness and toughness is prepared by smelting, homogenizing treatment and subsequent extrusion (backward extrusion) processes, the strength and toughness of the wrought magnesium alloy are enhanced, and the wrought magnesium alloy has good mechanical properties.
Drawings
FIG. 1 is a stress-strain curve of a Mg-0.5Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy rod prepared in example 1 of the present invention;
FIG. 2 is a stress-strain curve of a Mg-1Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy rod prepared in example 2 of the present invention;
FIG. 3 is a stress-strain curve of a Mg-1Ca-1Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy rod prepared in example 3 of the present invention;
FIG. 4 is a stress-strain curve of a Mg-2Ca-1.5Al-0.5Zn-2.0Mn-0.2Ce wrought magnesium alloy rod prepared in example 4 of the present invention;
FIG. 5 is OM diagrams of Mg-0.5Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy rods prepared in example 1 of the present invention under different magnifications;
FIG. 6 is an OM diagram of a Mg-1Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy rod prepared in example 2 of the present invention under different magnifications;
FIG. 7 is an OM diagram of a Mg-1Ca-1Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy rod prepared in example 3 of the present invention under different magnifications.
Detailed Description
Example 1
The high-strength high-plasticity Mg-0.5Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy comprises the following components in percentage by mass: 0.5 wt.% Ca; 0.3 wt.% Al; 0.1 wt.% Zn; 0.1 wt.% Mn; 0.1 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 0.5 wt.% Ca; 0.3 wt.% Al; 0.1 wt.% Zn; 0.1 wt.% Mn; 0.1 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 500 ℃ for homogenization treatment for 30 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: turning surface oxide skin of a homogenized Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot, preheating at 230 ℃, smearing graphite for lubrication, and performing backward extrusion at 230 ℃; the extrusion ratio is 20: 1, the extrusion speed is 0.5m/min, and the high-strength high-plasticity Mg-0.5Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce deformed magnesium alloy rod with the diameter of 10mm is obtained.
In this embodiment, the stress-strain curve of the Mg-0.5Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy bar is shown in fig. 1, the OM diagram under different magnifications is shown in fig. 5(a) and fig. 5(b), and the high-strength and high-plasticity Mg-0.5Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy bar prepared by this embodiment has the following tensile strength: 360MPa, yield strength: 363MPa, elongation: 13 percent.
Example 2
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-1Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce comprises the following components in percentage by mass: 1 wt.% Ca; 0.3 wt.% Al; 0.1 wt.% Zn; 0.1 wt.% Mn; 0.1 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 1 wt.% Ca; 0.3 wt.% Al; 0.1 wt.% Zn; 0.1 wt.% Mn; 0.1 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 500 ℃ for homogenization treatment for 30 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 230 ℃ after turning a skin, smearing graphite for lubrication, and performing reverse extrusion at 230 ℃; the extrusion ratio is 20: 1, the extrusion speed is 0.5m/min, and the high-strength high-plasticity Mg-1Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce deformed magnesium alloy rod with the diameter of 10mm is obtained.
The stress-strain curve of the Mg-1Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy rod prepared in this example is shown in fig. 2, the OM diagrams under different magnifications are shown in fig. 6(a) and fig. 6(b), and the high-strength and high-plasticity Mg-1Ca-0.3Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy rod prepared in this example has tensile strength: 400MPa, yield strength: 409MPa, and the elongation is: 11 percent.
Example 3
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-1Ca-1Al-0.1Zn-0.1Mn-0.1Ce comprises the following components in percentage by mass: 1 wt.% Ca; 1 wt.% Al; 0.1 wt.% Zn; 0.1 wt.% Mn; 0.1 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 1 wt.% Ca; 1 wt.% Al; 0.1 wt.% Zn; 0.1 wt.% Mn; 0.1 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 500 ℃ for homogenization treatment for 30 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 230 ℃ after turning a skin, smearing graphite for lubrication, and performing reverse extrusion at 230 ℃; the extrusion ratio is 20: 1, the extrusion speed is 0.5m/min, and the high-strength high-plasticity Mg-1Ca-1Al-0.1Zn-0.1Mn-0.1Ce deformed magnesium alloy rod with the diameter of 10mm is obtained.
In this example, the stress-strain curve of the Mg-1Ca-1Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy bar is shown in fig. 3, the OM diagrams under different magnifications are shown in fig. 7(a) and fig. 7(b), the high-strength and high-plasticity Mg-1Ca-1Al-0.1Zn-0.1Mn-0.1Ce wrought magnesium alloy prepared in this example is extruded at 230 ℃ to obtain the bar, and the tensile strength is: 411MPa, yield strength: 418MPa, elongation: 9 percent.
Example 4
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-2Ca-1.5Al-0.5Zn-2Mn-0.2Ce comprises the following components in percentage by mass: 2 wt.% Ca; 1.5 wt.% Al; 0.5 wt.% Zn; 2 wt.% Mn; 0.2 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 2 wt.% Ca; 1.5 wt.% Al; 0.5 wt.% Zn; 2 wt.% Mn; 0.2 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 500 ℃ for homogenization treatment for 30 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 230 ℃ after turning a skin, smearing graphite for lubrication, and performing reverse extrusion at 230 ℃; the extrusion ratio is 20: 1, the extrusion speed is 0.5m/min, and the high-strength high-plasticity Mg-2Ca-1.5Al-0.5Zn-2Mn-0.2Ce deformed magnesium alloy rod with the diameter of 10mm is obtained.
In this embodiment, the stress-strain curve of the Mg-2Ca-1.5Al-0.5Zn-2Mn-0.2Ce wrought magnesium alloy bar is shown in fig. 4, and the high-strength and high-plasticity Mg-2Ca-1.5Al-0.5Zn-2Mn-0.2Ce wrought magnesium alloy bar prepared by this embodiment has the following tensile strength: 435MPa, yield strength: 449MPa, elongation: 4 percent.
Example 5
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-2Ca-2Al-0.5Zn-2.5Mn-0.4Ce comprises the following components in percentage by mass: 2 wt.% Ca; 2 wt.% Al; 0.5 wt.% Zn; 2.5 wt.% Mn; 0.4 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 2 wt.% Ca; 2 wt.% Al; 0.5 wt.% Zn; 2.5 wt.% Mn; 0.4 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 500 ℃ for homogenization treatment for 30 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 230 ℃ after turning a skin, smearing graphite for lubrication, and performing reverse extrusion at 230 ℃; the extrusion ratio is 20: 1, the extrusion speed is 0.5m/min, and the high-strength high-plasticity Mg-2Ca-2Al-0.5Zn-2.5Mn-0.4Ce deformed magnesium alloy rod with the diameter of 10mm is obtained.
The high-strength high-plasticity Mg-2Ca-2Al-0.5Zn-2.5Mn-0.4Ce wrought magnesium alloy bar prepared by the embodiment has the following tensile strength: 421MPa, yield strength: 443MPa, and elongation: 10.3 percent.
Example 6
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-3.2Ca-3.5Al-1Zn-3Mn-0.5Ce comprises the following components in percentage by mass: 3.2 wt.% Ca; 3.5 wt.% Al; 1 wt.% Zn; 3 wt.% Mn; 0.5 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 3.2 wt.% Ca; 3.5 wt.% Al; 1 wt.% Zn; 3 wt.% Mn; 0.5 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution at 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 500 ℃ for homogenization treatment for 30 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 230 ℃ after turning a skin, smearing graphite for lubrication, and performing reverse extrusion at 230 ℃; the extrusion ratio is 20: 1, the extrusion speed is 0.5m/min, and the high-strength high-plasticity Mg-3.2Ca-3.5Al-1Zn-3Mn-0.5Ce deformed magnesium alloy rod with the diameter of 10mm is obtained.
The high-strength high-plasticity Mg-3.2Ca-3.5Al-1Zn-3Mn-0.5Ce wrought magnesium alloy bar prepared by the embodiment has the following tensile strength: 396MPa, yield strength: 415MPa, elongation: 11 percent.
Example 7
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-0.8Ca-0.6Al-0.2Zn-0.2Mn-0.1Ce comprises the following components in percentage by mass: 0.8 wt.% Ca; 0.6 wt.% Al; 0.2 wt.% Zn; 0.2 wt.% Mn; 0.1 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 0.8 wt.% Ca; 0.6 wt.% Al; 0.2 wt.% Zn; 0.2 wt.% Mn; 0.1 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 480 ℃, carrying out homogenization treatment for 50 hours, and carrying out water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 280 ℃ after turning a skin, smearing graphite for lubrication, and performing reverse extrusion at 280 ℃; the extrusion ratio is 20: 1, the extrusion speed is 0.01m/min, and the high-strength high-plasticity Mg-0.8Ca-0.6Al-0.2Zn-0.2Mn-0.1Ce deformed magnesium alloy rod with the diameter of 10mm is obtained.
The high-strength high-plasticity Mg-0.8Ca-0.6Al-0.2Zn-0.2Mn-0.1Ce wrought magnesium alloy bar prepared by the embodiment has the following tensile strength: 372MPa, yield strength: 357MPa, elongation: 6 percent.
Example 8
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-1.2Ca-0.8Al-0.4Zn-0.5Mn-0.2Ce comprises the following components in percentage by mass: 1.2 wt.% Ca; 0.8 wt.% Al; 0.4 wt.% Zn; 0.5 wt.% Mn; 0.2 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 1.2 wt.% Ca; 0.8 wt.% Al; 0.4 wt.% Zn; 0.5 wt.% Mn; 0.2 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 480 ℃, carrying out homogenization treatment for 50 hours, and carrying out water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 280 ℃ after turning a skin, smearing graphite for lubrication, and performing reverse extrusion at 280 ℃; the extrusion ratio is 10: 1, the extrusion speed is 0.05m/min, and the high-strength high-plasticity Mg-0.8Ca-0.6Al-0.2Zn-0.2Mn-0.1Ce deformed magnesium alloy rod with the diameter of 15mm is obtained.
The high-strength high-plasticity Mg-0.8Ca-0.6Al-0.2Zn-0.2Mn-0.1Ce wrought magnesium alloy bar prepared by the embodiment has the following tensile strength: 389MPa, yield strength: 371MPa, elongation: 5 percent.
Example 9
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-1.5Ca-1.4Al-0.6Zn-0.8Mn-0.3Ce comprises the following components in percentage by mass: 1.5 wt.% Ca; 1.4 wt.% Al; 0.6 wt.% Zn; 0.8 wt.% Mn; 0.3 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 1.5 wt.% Ca; 1.4 wt.% Al; 0.6 wt.% Zn; 0.8 wt.% Mn; 0.3 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 490 ℃ for homogenization treatment for 40 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 300 ℃ after turning a skin, smearing graphite for lubrication, and then carrying out reverse extrusion at 300 ℃; the extrusion ratio is 15: 1, the extrusion speed is 0.1m/min, and the high-strength high-plasticity Mg-1.5Ca-1.4Al-0.6Zn-0.8Mn-0.3Ce deformed magnesium alloy rod with the diameter of 12mm is obtained.
The high-strength high-plasticity Mg-1.5Ca-1.4Al-0.6Zn-0.8Mn-0.3Ce wrought magnesium alloy bar prepared by the embodiment has the following tensile strength: 401MPa, yield strength: 383MPa, elongation: 5.8 percent.
Example 10
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-1.8Ca-1.6Al-0.6Zn-0.8Mn-0.4Ce comprises the following components in percentage by mass: 1.8 wt.% Ca; 1.6 wt.% Al; 0.6 wt.% Zn; 0.8 wt.% Mn; 0.4 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 1.8 wt.% Ca; 1.6 wt.% Al; 0.6 wt.% Zn; 0.8 wt.% Mn; 0.4 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 490 ℃ for homogenization treatment for 40 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 300 ℃ after turning a skin, smearing graphite for lubrication, and then carrying out reverse extrusion at 300 ℃; the extrusion ratio is 25: 1, the extrusion speed is 1m/min, and the high-strength high-plasticity Mg-1.5Ca-1.4Al-0.6Zn-0.8Mn-0.3Ce deformed magnesium alloy rod with the diameter of 9.5mm is obtained.
The high-strength high-plasticity Mg-1.5Ca-1.4Al-0.6Zn-0.8Mn-0.3Ce wrought magnesium alloy bar prepared by the embodiment has the following tensile strength: 412MPa, yield strength: 396MPa, elongation: 6.7 percent.
Example 11
The high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy Mg-2.5Ca-2.5Al-0.8Zn-1.5Mn-0.5Ce comprises the following components in percentage by mass: 2.5 wt.% Ca; 2.5 wt.% Al; 0.8 wt.% Zn; 1.5 wt.% Mn; 0.5 wt.% Ce, balance Mg.
The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following steps:
(1) weighing the following components in percentage by mass: 2.5 wt.% Ca; 2.5 wt.% Al; 0.8 wt.% Zn; 1.5 wt.% Mn; 0.5 wt.% Ce, balance magnesium; manganese is a magnesium-manganese intermediate alloy with the manganese content of 6 wt.%, and the metal purity is more than 99%;
(2) smelting of cast ingots: under the protection of high-purity argon, heating industrial pure magnesium to 740 ℃, adding alloy elements of calcium, aluminum, zinc, cerium and manganese after the industrial pure magnesium is melted, stirring for 3min, controlling the temperature of the solution to be 700 ℃, standing for 10min, removing scum on the surface, casting the solution into a die preheated to 200 ℃ under the condition of the temperature of 700 ℃, and preparing a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
(3) homogenizing: isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air under the coverage of graphite powder, heating to 520 ℃ for homogenization treatment for 20 hours, and performing water quenching to obtain the homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
(4) and (3) reverse extrusion: preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 350 ℃ after turning a skin, smearing graphite for lubrication, and then carrying out reverse extrusion at 350 ℃; the extrusion ratio is 30: 1, the extrusion speed is 1.5m/min, and the high-strength high-plasticity Mg-1.5Ca-1.4Al-0.6Zn-0.8Mn-0.3Ce deformed magnesium alloy rod with the diameter of 8.5mm is obtained.
The high-strength high-plasticity Mg-1.5Ca-1.4Al-0.6Zn-0.8Mn-0.3Ce wrought magnesium alloy bar prepared by the embodiment has the following tensile strength: 437MPa, yield strength: 411MPa, elongation: 7.1 percent.
Claims (5)
1. The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy is characterized in that the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy comprises the following components in percentage by mass: calcium: 0.50-2%; aluminum: 0.30-1.5%; zinc: 0.10-0.5%; manganese: 0.10-2%; cerium: 0.10-0.2%, and the balance of magnesium and inevitable impurities;
the method specifically comprises the following steps:
step 1, preparing materials:
weighing required raw materials according to the mass percentage of Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy components;
step 2, ingot casting smelting:
(1) under the protection of protective gas, adding the raw materials in two batches: in the first batch: adding pure magnesium, heating to 740-780 ℃, fully stirring and completely melting; and (3) second batch: adding pure aluminum, pure calcium, pure zinc, pure cerium, manganese or magnesium-manganese intermediate alloy; fully stirring for 3-6 min to form alloy melt;
(2) controlling the temperature of the alloy melt at 700-750 ℃, standing for 10-20 min, removing floating slag on the surface, and casting the alloy melt into an iron mold preheated to 200-350 ℃ to prepare a Mg-Ca-Al-Zn-Mn-Ce deformed magnesium alloy ingot;
step 3, homogenizing:
isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air, heating to 480-520 ℃, preserving heat for 20-50 hours, and performing water quenching to obtain a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot;
and 4, carrying out reverse extrusion:
preheating a homogenized Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot at 230-350 ℃ for 15min, and carrying out reverse extrusion at 230-350 ℃ at an extrusion ratio of (10-30): 1 and an extrusion speed of 0.01-2 m/min to obtain the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy.
2. The method for preparing the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy according to claim 1, wherein in the step 2(1), the protective gas is high-purity argon.
3. The method for preparing the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy according to claim 1, wherein in the step 3, the method for isolating the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy ingot from air comprises the following steps: covering with graphite powder or in vacuum environment or under protective gas to isolate air, wherein the protective gas is argon, helium or nitrogen.
4. The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy according to claim 1, wherein in the step 4, the Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy is an alloy bar, and the diameter of the bar is 8.5-15 mm.
5. The preparation method of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy according to claim 1, wherein the tensile strength of the high-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy is as follows: 362-449 MPa, yield strength: 352-435 MPa, and the elongation is as follows: 4-13%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353437.6A CN110066948B (en) | 2019-04-29 | 2019-04-29 | High-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353437.6A CN110066948B (en) | 2019-04-29 | 2019-04-29 | High-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110066948A CN110066948A (en) | 2019-07-30 |
| CN110066948B true CN110066948B (en) | 2020-09-11 |
Family
ID=67369494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910353437.6A Active CN110066948B (en) | 2019-04-29 | 2019-04-29 | High-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110066948B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455245A (en) * | 2020-05-21 | 2020-07-28 | 东北大学 | High-strength Mg-Ca-Mn-Al-Zn series wrought magnesium alloy containing gadolinium-yttrium rare earth elements and preparation method thereof |
| CN111455243A (en) * | 2020-05-21 | 2020-07-28 | 东北大学 | Mg-Ca-Mn-Al-Zn series wrought magnesium alloy with high Mn content and preparation method thereof |
| CN111485153A (en) * | 2020-05-21 | 2020-08-04 | 东北大学 | Wrought magnesium alloy containing neodymium-samarium light rare earth elements and high Mn content and preparation method thereof |
| CN111519074A (en) * | 2020-05-21 | 2020-08-11 | 东北大学 | High-strength Mg-Ca-Mn-Al-Zn series wrought magnesium alloy containing light rare earth element lanthanum and preparation method thereof |
| CN111607727A (en) * | 2020-05-21 | 2020-09-01 | 东北大学 | Ce and Ca element synergistically strengthened low-cost wrought magnesium alloy and preparation method thereof |
| CN111607728A (en) * | 2020-05-21 | 2020-09-01 | 东北大学 | Low-cost wrought magnesium alloy reinforced by light rare earth elements Ce and Sm and preparation method thereof |
| CN114182148A (en) * | 2021-12-07 | 2022-03-15 | 包头稀土研究院 | Multicomponent Mg-RE magnesium alloy and its prepn |
| CN115233060B (en) * | 2022-08-12 | 2023-02-03 | 吉林大学 | High-strength weak-texture Mg-Zn-Y-Ca-Zr magnesium alloy with low alloy content and preparation method thereof |
| CN115537619A (en) * | 2022-09-22 | 2022-12-30 | 宁波尚镁新材料科技有限责任公司 | Magnesium alloy for processing cookware, magnesium alloy cookware and processing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2651244B1 (en) * | 1989-08-24 | 1993-03-26 | Pechiney Recherche | PROCESS FOR OBTAINING MAGNESIUM ALLOYS BY SPUTTERING. |
| JP4415098B2 (en) * | 2005-03-16 | 2010-02-17 | 独立行政法人産業技術総合研究所 | Method for producing flame retardant magnesium alloy extruded material and extruded material |
| CN108265213A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | A kind of high-strength fire-retarding wrought magnesium alloy and preparation method thereof |
| CN109136702A (en) * | 2018-11-12 | 2019-01-04 | 东北大学 | A kind of wrought magnesium alloy and preparation method thereof of high alumina high calcium content |
-
2019
- 2019-04-29 CN CN201910353437.6A patent/CN110066948B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110066948A (en) | 2019-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110066948B (en) | High-strength high-plasticity Mg-Ca-Al-Zn-Mn-Ce wrought magnesium alloy and preparation method thereof | |
| CN108425050B (en) | High-strength high-toughness aluminum lithium alloy and preparation method thereof | |
| CN111455245A (en) | High-strength Mg-Ca-Mn-Al-Zn series wrought magnesium alloy containing gadolinium-yttrium rare earth elements and preparation method thereof | |
| CN104004949B (en) | The preparation method of a kind of high strength magnesium lithium alloy | |
| CN111519074A (en) | High-strength Mg-Ca-Mn-Al-Zn series wrought magnesium alloy containing light rare earth element lanthanum and preparation method thereof | |
| CN109881062B (en) | High-strength, high-toughness and high-modulus extrusion casting magnesium alloy and preparation method thereof | |
| CN109881063B (en) | High-strength, high-toughness and high-modulus die-casting magnesium alloy and preparation method thereof | |
| CN109972009B (en) | High-toughness high-modulus wrought magnesium alloy and preparation method thereof | |
| CN108977710B (en) | Extrusion casting magnesium alloy material and preparation method thereof | |
| CN114250393B (en) | High-strength high-modulus biphase magnesium-lithium alloy and preparation method thereof | |
| CN102392162A (en) | Low-Gd-containing high-strength high-plasticity Mg-Li alloy and preparation method thereof | |
| CN109161765B (en) | High-aluminum high-strontium-content wrought magnesium alloy and preparation method thereof | |
| CN111607727A (en) | Ce and Ca element synergistically strengthened low-cost wrought magnesium alloy and preparation method thereof | |
| CN111607728A (en) | Low-cost wrought magnesium alloy reinforced by light rare earth elements Ce and Sm and preparation method thereof | |
| CN115852217A (en) | High-strength easily-extruded aluminum alloy and section extrusion method thereof | |
| CN113621854B (en) | Low-density high-modulus high-strength aluminum alloy and preparation method thereof | |
| CN101871068B (en) | High-strength high-plasticity magnesium alloy comprising tin and aluminium and preparation method thereof | |
| CN108570583B (en) | Rare earth-free low-alloy magnesium alloy with ultrahigh strength and toughness and preparation method thereof | |
| CN111485153A (en) | Wrought magnesium alloy containing neodymium-samarium light rare earth elements and high Mn content and preparation method thereof | |
| CN111455243A (en) | Mg-Ca-Mn-Al-Zn series wrought magnesium alloy with high Mn content and preparation method thereof | |
| CN113755730A (en) | High-strength high-plasticity Mg-Al-Ce- (Nd) wrought magnesium alloy and preparation method thereof | |
| CN109371301B (en) | Room-temperature high-plasticity magnesium alloy and preparation method thereof | |
| CN114807707B (en) | High-strength wrought magnesium alloy and preparation method thereof | |
| CN111155011A (en) | High-performance Mg-Al-Ca magnesium alloy and preparation method thereof | |
| CN102560211B (en) | Gd-containing cast magnesium alloy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221114 Address after: Room 606, No. 39-1, Chuangxin Second Road, Shenyang area, China (Liaoning) pilot Free Trade Zone, Shenyang, Liaoning 110167 Patentee after: Shenyang Hexin Materials Technology Partnership (L.P.) Address before: 110819 No. 3 lane, Heping Road, Heping District, Shenyang, Liaoning 11 Patentee before: Northeastern University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231225 Address after: Room 606, No. 39-1, Chuangxin Second Road, Shenyang area, China (Liaoning) pilot Free Trade Zone, Shenyang, Liaoning 110167 Patentee after: Shenyang Shengke Hechuang Light Alloy Technology Co.,Ltd. Address before: Room 606, No. 39-1, Chuangxin Second Road, Shenyang area, China (Liaoning) pilot Free Trade Zone, Shenyang, Liaoning 110167 Patentee before: Shenyang Hexin Materials Technology Partnership (L.P.) |