CN112899590A - Wrought aluminum alloy of aluminum, zinc, magnesium, scandium system and method for producing same - Google Patents
Wrought aluminum alloy of aluminum, zinc, magnesium, scandium system and method for producing same Download PDFInfo
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- CN112899590A CN112899590A CN202110060902.4A CN202110060902A CN112899590A CN 112899590 A CN112899590 A CN 112899590A CN 202110060902 A CN202110060902 A CN 202110060902A CN 112899590 A CN112899590 A CN 112899590A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
- C22C49/06—Aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
Abstract
The invention relates to the technical field of aluminum alloy, in particular to a wrought aluminum alloy of an aluminum, zinc, magnesium and scandium system and a manufacturing method thereof, which can improve the strength and corrosion resistance of the aluminum alloy and promote the development of the aluminum alloy; the alloy is Al-Zn-Mg-Sc wrought aluminum alloy, and comprises the following raw material components in percentage by mass: 10-15% of Zn, 10-15% of Mg, 2-3% of Sc, 0.01-0.05% of additive, and the balance of aluminum and inevitable impurities, wherein 90% of the total weight of Zn, Mg and Sc exists in the form of alloy fiber filaments.
Description
Technical Field
The invention relates to the technical field of aluminum alloy, in particular to a wrought aluminum alloy of an aluminum, zinc, magnesium and scandium system and a manufacturing method thereof.
Background
As is well known, aluminum alloys, which are alloys based on aluminum with certain amounts of other alloying elements added, are one of the light metal materials. In addition to the general characteristics of aluminum, aluminum alloys have certain alloy specific characteristics due to the variety and amount of alloying elements added. The aluminum alloy has the density of 2.63-2.85 g/cm, higher strength (sigma b of 110-650 MPa), specific strength close to that of high alloy steel, specific stiffness higher than that of steel, good casting performance and plastic processing performance, good electric conductivity and heat conductivity, good corrosion resistance and weldability, can be used as a structural material, and has wide application in aerospace, aviation, transportation, construction, electromechanics, lightening and daily necessities.
When the existing aluminum alloy is produced, different metal additives are generally added into molten aluminum liquid to adjust the element content in the aluminum alloy, and the common alloy elements of the aluminum alloy are as follows: silicon, iron, copper, magnesium, nickel, zinc, vanadium and the like, but the produced aluminum alloy has low strength and poor corrosion resistance, so that the quality of the existing aluminum alloy is poor, and therefore, the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system and the manufacturing method thereof are provided.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a wrought aluminum alloy of aluminum, zinc, magnesium, and scandium systems, which improves the strength and corrosion resistance of the aluminum alloy and promotes the development thereof.
Another object of the present invention is to provide a method for producing a wrought aluminum alloy of aluminum, zinc, magnesium, and scandium systems.
The wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system is Al-Zn-Mg-Sc wrought aluminum alloy, and comprises the following raw material components in percentage by mass: 10-15% of Zn, 10-15% of Mg, 2-3% of Sc, 0.01-0.05% of additive, and the balance of aluminum and inevitable impurities, wherein 90% of the total weight of Zn, Mg and Sc exists in the form of alloy fiber filaments.
The additive is magnesium chloride salt.
The impurities of the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system are less than or equal to 0.02 percent of C, less than or equal to 0.02 percent of H, less than or equal to 0.02 percent of O and less than or equal to 0.01 percent of N.
The method for manufacturing the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system comprises the following steps of:
(1) preparing Zn, Mg and Sc alloy fiber yarns;
(2) laminating the alloy fiber wire to obtain an alloy fiber wire body;
(3) and (3) casting and compounding the alloy fiber screen and the liquid aluminum alloy to obtain the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system.
The method for manufacturing the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system comprises the following specific steps of (1):
(101) smelting: weighing Zn, Mg and Sc one by one, recording the weight, smelting by using a high-vacuum arc furnace, pumping to high vacuum, filling argon for smelting, repeatedly smelting for 2 times, preparing electromagnetic stirring in the smelting process, weighing Zn and Mg with the weight value of 1-3% of the initial recorded weight value in order to reduce the influence of the volatilization of the Zn and the Mg on the components of the alloy fiber filaments after the smelting process, adding the Zn and the Mg into the arc furnace, and obtaining an alloy ingot after the smelting is finished;
(102) annealing: sealing the alloy ingot into a quartz tube, then annealing at the annealing temperature of 900-1100 ℃, and then performing water quenching to obtain a transition substance;
(103) preparing an alloy fiber wire with a glass fiber coating layer: cutting the transition object into small blocks, polishing, cleaning, drying, loading into a Pyrex glass tube, vacuumizing, flushing argon to 0.2Pa, sucking air for 2-4 times by using a vacuum system, starting a Pyrex glass tube heating device, when the alloy is fully melted and begins to boil, and when the bottom of the glass tube is melted and softened, rapidly leading out alloy microwires from the bottom of the glass tube by using a glass rod with a tip, and cooling by a water cooling mode to obtain the alloy fiber tow with a glass coating layer;
(104) removing the glass coating layer: and removing the glass coating layer by adopting shaking or sand paper friction to obtain the alloy fiber wire, wherein the diameter of the alloy fiber wire is 20-50 um.
The method for producing a wrought aluminum alloy of aluminum, zinc, magnesium, and scandium systems of the present invention, wherein the step (2) is as follows:
(201) after the alloy fiber wires are arranged in parallel (adjacent alloy fiber wires are tangent), the alloy fiber wires are transversely stitched and fixed (the distance between the adjacent alloy fiber wires is 5-10 mm);
(202) repeating the steps to form the alloy fiber body, wherein the volume of the alloy fiber body accounts for 40-50% of the volume of the deformed aluminum alloy of the aluminum, zinc, magnesium and scandium system.
The method for producing a wrought aluminum alloy of aluminum, zinc, magnesium, and scandium systems of the present invention comprises the step (3) of:
(301) weighing Zn, Mg, Sc, Al and magnesium chloride in the rest weight, and heating to form alloy liquid;
(302) and after coating a release agent on the inner wall of the casting mold, placing the alloy fiber body into the casting mold, combining the alloy fiber body and the casting mold, then pouring liquid alloy into the casting mold in an atmospheric environment to be compounded with the alloy fiber body, cooling along with a furnace, opening the mold, and cutting to obtain the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system.
Compared with the prior art, the invention has the beneficial effects that: the corrosion resistance of the aluminum alloy can be improved by adding metal magnesium into the aluminum, but the strength of the aluminum alloy is easy to reduce, so that zinc and magnesium are simultaneously added into the aluminum to form a strengthening phase Mg/Zn2, the alloy is obviously strengthened, the tensile strength and the yield strength can be obviously enhanced by adding Zn, Mg and Sc alloy fiber wires, and scandium is simultaneously added into the aluminum to improve the toughness of the alloy and improve the performance of the alloy, so that the strength of the aluminum alloy can be improved, the corrosion resistance of the aluminum alloy is improved, and the produced aluminum alloy has good quality.
Drawings
Fig. 1 is a perspective view of an alloy fiber filament of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
14% of Zn, 11% of Mg, 2.7% of Sc, 0.04% of magnesium chloride salt, the balance of aluminum and neglect other impurities;
the manufacturing method of the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system comprises the following steps:
(1) preparing Zn, Mg and Sc alloy fiber yarns;
the method comprises the following specific steps:
(101) smelting: weighing Zn, Mg and Sc one by one, recording the weight (the weighed weight is 90% of the weight of the Zn, Mg and Sc), smelting by using a high-vacuum arc furnace, pumping to high vacuum, filling argon for smelting, repeatedly smelting for 2 times, preparing electromagnetic stirring in the smelting process, weighing Zn and Mg with the weight value of 1-3% of the initial recorded weight value after the smelting process in order to reduce the influence of the volatilization of the Zn and the Mg on the components of the alloy fiber, adding the Zn and the Mg into the arc furnace, and obtaining an alloy ingot after the smelting is finished;
(102) annealing: sealing the alloy ingot into a quartz tube, then annealing at the annealing temperature of 900-1100 ℃, and then performing water quenching to obtain a transition substance;
(103) preparing an alloy fiber wire with a glass fiber coating layer: cutting the transition object into small blocks, polishing, cleaning, drying, loading into a Pyrex glass tube, vacuumizing, flushing argon to 0.2Pa, sucking air for 2-4 times by using a vacuum system, starting a Pyrex glass tube heating device, when the alloy is fully melted and begins to boil, and when the bottom of the glass tube is melted and softened, rapidly leading out alloy microwires from the bottom of the glass tube by using a glass rod with a tip, and cooling by a water cooling mode to obtain the alloy fiber tow with a glass coating layer;
(104) removing the glass coating layer: and removing the glass coating layer by adopting shaking or sand paper friction to obtain the alloy fiber wire, wherein the diameter of the alloy fiber wire is 20-50 um.
(2) Laminating the alloy fiber wire to obtain an alloy fiber wire body;
the method comprises the following steps:
(201) after the alloy fiber wires are arranged in parallel (adjacent alloy fiber wires are tangent), the alloy fiber wires are transversely stitched and fixed (the distance between the adjacent alloy fiber wires is 7 mm);
(202) repeating the steps to form the alloy fiber body, wherein the volume of the alloy fiber body accounts for 40-50% of the volume of the deformed aluminum alloy of the aluminum, zinc, magnesium and scandium system.
(3) Pouring and compounding the alloy fiber screen and liquid aluminum alloy to obtain a wrought aluminum alloy of an aluminum, zinc, magnesium and scandium system;
the method comprises the following steps:
(301) weighing Zn, Mg, Sc, Al and magnesium chloride in the rest weight, and heating to form alloy liquid;
(302) and after a release agent is coated on the inner wall of the casting mold, placing the alloy fiber body into the casting mold, combining the alloy fiber body and the casting mold, then pouring liquid alloy into the casting mold in an atmospheric environment to be compounded with the alloy fiber body, wherein the pouring temperature is 720 ℃, and after the liquid alloy is cooled along with a furnace, opening the mold and cutting to obtain the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system.
Example 2:
15% of Zn, 10% of Mg, 3% of Sc, 0.02% of magnesium chloride salt, the balance of aluminum and neglect other impurities;
the manufacturing method is the same as that of the embodiment 1;
example 3:
10% of Zn, 15% of Mg, 2% of Sc, 0.01% of magnesium chloride salt, the balance of aluminum and neglect other impurities;
the manufacturing method is the same as that of the embodiment 1;
example 4:
12% of Zn, 12% of Mg, 2.4% of Sc, 0.03% of magnesium chloride salt, the balance of aluminum and neglect other impurities;
the manufacturing method is the same as that of the embodiment 1;
comparative example:
commercially available aluminum alloys ZL 301;
the following data were obtained by carrying out the approach tests according to GB/T3190-:
from the above data, the wrought aluminum alloys of the aluminum, zinc, magnesium, and scandium systems of the present invention, prepared in examples 1-4, have much better tensile strength, yield strength, and hardness than the comparative examples;
in addition, in examples 1-4, according to GB/T10125 + 2012 'salt fog test for artificial atmosphere corrosion test' neutral salt fog test 540h, the protection rating is not lower than GB/T6461 + 2002 'salt fog test rating' middle 6, and the corrosion-resistant paint has excellent corrosion-resistant effect.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The wrought aluminum alloy of an aluminum, zinc, magnesium and scandium system is characterized in that the alloy is Al-Zn-Mg-Sc wrought aluminum alloy, and the raw material components and the mass percentage content are as follows: 10-15% of Zn, 10-15% of Mg, 2-3% of Sc, 0.01-0.05% of additive, and the balance of aluminum and inevitable impurities, wherein 90% of the total weight of Zn, Mg and Sc exists in the form of alloy fiber filaments.
2. The wrought aluminum alloy of the aluminum, zinc, magnesium, scandium system, according to claim 1, wherein the additive is a magnesium chloride salt.
3. The wrought aluminum alloy of the aluminum, zinc, magnesium, scandium system of claim 2, wherein the impurities are C0.02% or less, H0.02% or less, O0.02% or less, and N0.01% or less.
4. A method of producing a wrought aluminium alloy of the aluminium, zinc, magnesium, scandium systems according to any of claims 1 to 3, comprising the steps of:
(1) preparing Zn, Mg and Sc alloy fiber yarns;
(2) laminating the alloy fiber wire to obtain an alloy fiber wire body;
(3) and (3) casting and compounding the alloy fiber screen and the liquid aluminum alloy to obtain the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system.
5. The wrought aluminum alloy of aluminum, zinc, magnesium, and scandium system, and the manufacturing method thereof according to claim 4, wherein the step (1) comprises the following steps:
(101) smelting: weighing Zn, Mg and Sc one by one, recording the weight, smelting by using a high-vacuum arc furnace, pumping to high vacuum, filling argon for smelting, repeatedly smelting for 2 times, preparing electromagnetic stirring in the smelting process, weighing Zn and Mg with the weight value of 1-3% of the initial recorded weight value in order to reduce the influence of the volatilization of the Zn and the Mg on the components of the alloy fiber filaments after the smelting process, adding the Zn and the Mg into the arc furnace, and obtaining an alloy ingot after the smelting is finished;
(102) annealing: sealing the alloy ingot into a quartz tube, then annealing at the annealing temperature of 900-1100 ℃, and then performing water quenching to obtain a transition substance;
(103) preparing an alloy fiber wire with a glass fiber coating layer: cutting the transition object into small blocks, polishing, cleaning, drying, loading into a Pyrex glass tube, vacuumizing, flushing argon to 0.2Pa, sucking air for 2-4 times by using a vacuum system, starting a Pyrex glass tube heating device, when the alloy is fully melted and begins to boil, and when the bottom of the glass tube is melted and softened, rapidly leading out alloy microwires from the bottom of the glass tube by using a glass rod with a tip, and cooling by a water cooling mode to obtain the alloy fiber tow with a glass coating layer;
(104) removing the glass coating layer: and removing the glass coating layer by adopting shaking or sand paper friction to obtain the alloy fiber wire, wherein the diameter of the alloy fiber wire is 20-50 um.
6. The wrought aluminum alloy of aluminum, zinc, magnesium, and scandium system, and the method of manufacturing the same, according to claim 4, wherein in (2) the steps of:
(201) after the alloy fiber wires are arranged in parallel (adjacent alloy fiber wires are tangent), the alloy fiber wires are transversely stitched and fixed (the distance between the adjacent alloy fiber wires is 5-10 mm);
(202) repeating the steps to form the alloy fiber body, wherein the volume of the alloy fiber body accounts for 40-50% of the volume of the deformed aluminum alloy of the aluminum, zinc, magnesium and scandium system.
7. The wrought aluminum alloy of aluminum, zinc, magnesium, and scandium system, and the method of making the same, according to claim 4, wherein (3) is as follows:
(301) weighing Zn, Mg, Sc, Al and magnesium chloride in the rest weight, and heating to form alloy liquid;
(302) and after coating a release agent on the inner wall of the casting mold, placing the alloy fiber body into the casting mold, combining the alloy fiber body and the casting mold, then pouring liquid alloy into the casting mold in an atmospheric environment to be compounded with the alloy fiber body, cooling along with a furnace, opening the mold, and cutting to obtain the wrought aluminum alloy of the aluminum, zinc, magnesium and scandium system.
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| CN202110060902.4A CN112899590A (en) | 2021-01-18 | 2021-01-18 | Wrought aluminum alloy of aluminum, zinc, magnesium, scandium system and method for producing same |
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| CN202110060902.4A CN112899590A (en) | 2021-01-18 | 2021-01-18 | Wrought aluminum alloy of aluminum, zinc, magnesium, scandium system and method for producing same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299418A (en) * | 2017-06-21 | 2017-10-27 | 北京科技大学 | A kind of Ni Mn Ga alloy fibers that can be used for weaving and preparation method |
| CN108559891A (en) * | 2018-05-28 | 2018-09-21 | 沧州市东众特种合金制造有限公司 | Aluminium, zinc, magnesium, the wrought aluminium alloy of scandium system and its manufacturing method |
| US20190169725A1 (en) * | 2017-12-05 | 2019-06-06 | Ut-Battelle, Llc | Aluminum-fiber composites containing intermetallic phase at the matrix-fiber interface |
| US20200399748A1 (en) * | 2016-12-30 | 2020-12-24 | American Boronite Corporation | Metal Matrix Composite Comprising Nanotubes And Method Of Producing Same |
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2021
- 2021-01-18 CN CN202110060902.4A patent/CN112899590A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200399748A1 (en) * | 2016-12-30 | 2020-12-24 | American Boronite Corporation | Metal Matrix Composite Comprising Nanotubes And Method Of Producing Same |
| CN107299418A (en) * | 2017-06-21 | 2017-10-27 | 北京科技大学 | A kind of Ni Mn Ga alloy fibers that can be used for weaving and preparation method |
| US20190169725A1 (en) * | 2017-12-05 | 2019-06-06 | Ut-Battelle, Llc | Aluminum-fiber composites containing intermetallic phase at the matrix-fiber interface |
| CN108559891A (en) * | 2018-05-28 | 2018-09-21 | 沧州市东众特种合金制造有限公司 | Aluminium, zinc, magnesium, the wrought aluminium alloy of scandium system and its manufacturing method |
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