CN112522552A - Corrosion-resistant aluminum alloy and preparation method and application thereof - Google Patents
Corrosion-resistant aluminum alloy and preparation method and application thereof Download PDFInfo
- Publication number
- CN112522552A CN112522552A CN202011215752.1A CN202011215752A CN112522552A CN 112522552 A CN112522552 A CN 112522552A CN 202011215752 A CN202011215752 A CN 202011215752A CN 112522552 A CN112522552 A CN 112522552A
- Authority
- CN
- China
- Prior art keywords
- percent
- aluminum alloy
- alloy
- phase
- temperature
- 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.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
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)
- Metal Rolling (AREA)
Abstract
本发明属金属材料制备领域，公开了一种耐蚀的铝合金及其制备方法和应用，按重量百分比计包括Mg 0.8‑1.2％、Si 0.9‑1.3％、Cu 0.1‑0.3％、Mn 0.2‑0.4％、Cr 0.15‑0.35％、Zr 0.1‑0.3％、Hf 0.2‑0.6％和Fe≤0.5％。本发明添加微量Hf、Zr、Cr元素，采用三级均匀化工艺，促进饱和基体析出形成高稳定的(Al,Cr)3(Hf,Zr)相，抑制再结晶晶粒长大，细化晶粒，提高合金耐蚀性；形成高密度的(Al,Cr)3(Hf,Zr)弥散相，进一步提高合金的强度；通过优化Mg、Si、Cu元素含量及Mg/Si比值等，Cu‑Si与空位形成时效早期团簇，促进强化相弥散析出，提高时效强化相(Mg2Si)含量，获得合金较高强度；本发明还添加了适量的Cu元素，同时避免了形成Q相、θ相等含Cu相，能获得较优的耐蚀性。所得铝合金适合作为汽车结构件用铝合金或应用在其型材中。
The invention belongs to the field of metal material preparation, and discloses a corrosion-resistant aluminum alloy and a preparation method and application thereof, comprising Mg 0.8-1.2%, Si 0.9-1.3%, Cu 0.1-0.3%, Mn 0.2-% in weight percentages 0.4%, Cr 0.15-0.35%, Zr 0.1-0.3%, Hf 0.2-0.6% and Fe≤0.5%. The invention adds trace elements of Hf, Zr and Cr, adopts a three-stage homogenization process, promotes the precipitation of saturated matrix to form a highly stable (Al, Cr) 3 (Hf, Zr) phase, suppresses the growth of recrystallized grains, and refines the crystals. grains, improve the corrosion resistance of the alloy; form a high-density (Al, Cr) 3 (Hf, Zr) dispersed phase to further improve the strength of the alloy; Si and vacancies form clusters in the early age of aging, promote the dispersion and precipitation of the strengthening phase, increase the content of the aging strengthening phase (Mg 2 Si), and obtain higher strength of the alloy; the invention also adds an appropriate amount of Cu element, while avoiding the formation of Q phase, θ phase, θ phase. Equal Cu-containing phase, can obtain better corrosion resistance. The obtained aluminum alloy is suitable as an aluminum alloy for automobile structural parts or used in its profiles.
Description
Technical Field
The invention belongs to the field of metal material preparation, and particularly relates to a corrosion-resistant aluminum alloy and a preparation method and application thereof.
Background
6 xxx-based aluminum alloys (i.e., Al-Mg-Si-based alloys) are the first choice for the weight reduction of new-generation automobiles due to their moderate-high strength, high formability, and the like. AA6016, AA6111, AA6022 alloys and the like are applied to processing of automobile body outer plates and are widely applied to automobile body aluminum alloys. In order to improve the strength of the Al-Mg-Si series aluminum alloy, the contents of Mg, Si and Cu are generally increased, but the plasticity and corrosion resistance of the alloy are reduced, and the processability of the alloy is also greatly reduced. In this case, the content of Mg and Si elements is generally controlled to obtain high formability of the alloy. The strength and the rapid response capability of the alloy, such as 6111 alloy, are also remarkably increased by adding Cu element into certain alloys in the prior art, but the corrosion resistance of the material is also reduced.
The rare earth element is taken as an important alloying element of the aluminum alloy, and the function of the rare earth element is widely regarded. Sc element is the most effective rare earth element for inhibiting aluminum alloy recrystallization, non-recrystallization texture is obtained, and secondary dispersion Al is formed3Sc phase improves the strength and the stress corrosion resistance of the alloy, but the expensive cost limits the industrial application of Sc-containing rare earth aluminum alloy. Therefore, it is highly desirable to develop an aluminum alloy having high plasticity, alloy strength and stress corrosion resistance.
Disclosure of Invention
The invention provides a corrosion-resistant aluminum alloy, a preparation method and application thereof, which aim to solve one or more technical problems in the prior art and at least provide a beneficial selection or creation condition. The invention designs a novel composite rare earth aluminum alloy and a preparation method thereof, which are used for improving the strength and the corrosion resistance of the alloy.
In order to overcome the technical problems, the technical scheme adopted by the invention is as follows:
an aluminum alloy comprises the following components in percentage by weight: 0.8 to 1.2 percent of Mg, 0.9 to 1.3 percent of Si, 0.1 to 0.3 percent of Cu, 0.2 to 0.4 percent of Mn, 0.15 to 0.35 percent of Cr, 0.1 to 0.3 percent of Zr, 0.2 to 0.6 percent of Hf, and less than or equal to 0.5 percent of Fe.
Preferably, the aluminum alloy comprises the following components in percentage by weight: 0.9 to 1.1 percent of Mg, 1.0 to 1.2 percent of Si, 0.15 to 0.25 percent of Cu, 0.2 to 0.4 percent of Mn, 0.05 to 0.1 percent of Cr, 0.3 to 0.5 percent of Hf, 0.15 to 0.25 percent of Zr and less than or equal to 0.5 percent of Fe.
As a further improvement of the scheme, the mass ratio of Mg to Si is (0.8-1.1): 1; preferably, the mass ratio of Cu to Si is (0.15-0.25): 1.
As a further improvement of the above aspect, the mass ratio of Mn to Fe is (0.5-0.6): 1.
As a further improvement of the scheme, the content of impurity elements in the aluminum alloy is less than or equal to 0.15 percent by weight. The impurity element includes Ti.
The preparation method of the aluminum alloy comprises the following steps:
1) preparing raw materials: weighing the raw materials with the formula content of the aluminum alloy for later use;
2) preparing an alloy ingot: smelting, refining and pouring the raw materials to obtain an alloy ingot;
3) three-stage homogenization heat treatment: carrying out three-stage homogenization heat treatment on the alloy ingot obtained in the step 2);
4) quenching treatment: carrying out solid solution and quenching treatment on the sample obtained in the step 3);
5) aging treatment: carrying out aging treatment on the quenched sample to obtain the aluminum alloy;
in the step 3), the three-stage homogenization heat treatment process comprises the following steps: under the condition of room temperature, heating the alloy ingot casting at the heating rate of 20-50 ℃/h, and preserving heat for 15-30h when the temperature reaches 300-360 ℃; then continuously heating to 450-480 ℃ at the speed of 20-50 ℃/h, and preserving the temperature for 15-30 h; then continuously heating to 500-540 ℃ at the heating rate of 20-50 ℃/h, and preserving the heat for 15-30 h; finally, cooling to below 100 ℃ at a cooling rate of 20-50 ℃/h, and finishing.
In the invention, the smelting process of the raw materials comprises the following steps: firstly melting a high-purity aluminum ingot at 725 ℃ and 745 ℃, then adding Al-Mn10, Al-Cu50, Al-Si15, Al-Cr10 and Al-Zr5 intermediate alloys, continuously heating to 750 ℃ and 760 ℃, adding the Al-Hf intermediate alloy, and adding 99.99% of magnesium and a covering agent after the intermediate alloy is melted to obtain a completely molten metal.
The refining process comprises the following steps: adding hexachloroethane into the completely molten metal solution for degassing treatment, fully stirring, maintaining the metal temperature in the range of 730-750 ℃ during refining, fully standing after refining, and keeping the standing time for not less than 30 minutes;
the pouring process comprises the following steps: cooling the molten metal to 700-720 ℃, then cooling the melt to about 720 ℃, adding Al-5 wt% Ti-1 wt% B grain refiner, properly stirring, fully standing, and pouring the molten metal into a metal mold with the temperature of 420-450 ℃ to obtain an alloy ingot;
solution treatment: carrying out solution treatment on the cold-rolled sheet, and the specific process comprises the following steps: carrying out solid solution treatment for 15-45min in a heat treatment furnace with the temperature of 540-;
quenching treatment: and quenching the alloy sample subjected to the solution treatment into water at room temperature from the solution treatment temperature.
As a further improvement of the scheme, the treatment processes further included between the step 3) and the step 4) are hot rolling treatment and cold rolling treatment.
The hot rolling deformation process comprises the following steps: carrying out hot rolling on the alloy ingot: the initial rolling temperature is 530-545 ℃, the pass reduction is 4-32%, the total hot rolling deformation is more than 92%, and the final rolling temperature is lower than 320 ℃ to obtain a hot rolled plate;
the process of the cold rolling treatment is actually cold rolling deformation, intermediate annealing and cold rolling deformation, namely: taking out the hot rolled plate, wherein the cold rolling deformation pass reduction is 10-35%, and the total deformation is 30-60%; the intermediate annealing is carried out by heating to 350-450 ℃ at the heating rate of 80-120 ℃/min for 1-4h, and then directly taking out for air cooling; and (3) continuously performing cold rolling deformation, wherein the total deformation is 50-75%, and the pass reduction is 15-30%, so as to obtain the cold-rolled sheet.
As a further improvement of the scheme, in the step 5), the temperature of the aging treatment is 160-190 ℃, and the time of the aging treatment is 6-24 h.
As a further improvement of the scheme, the temperature of the aging treatment is 180-190 ℃, and the time length of the aging treatment is 8-18 h.
In the step 3), a three-stage homogenization process is adopted, so that the precipitation of a saturated matrix can be effectively promoted, and high-stability secondary (Al, Cr) is formed3(Hf, Zr) phase.
The aluminum alloy is suitable for being used as an aluminum alloy for automobile structural parts or applied to profiles of the aluminum alloy.
The invention has the beneficial effects that:
the invention provides a corrosion-resistant aluminum alloy and a preparation method and application thereof, and compared with the prior art, the corrosion-resistant aluminum alloy has the following advantages:
(1) adding trace Hf, Zr and Cr elements, and three-stage homogenizing to promote the precipitation of saturated matrix to form high-stability (Al, Cr)3The (Hf, Zr) phase inhibits the growth of recrystallized grains, refines the grains and improves the corrosion resistance of the alloy; at the same time, high density (Al, Cr) is formed3The (Hf, Zr) dispersed phase further improves the strength of the alloy.
(2) By optimizing the contents of Mg, Si and Cu elements, the Mg/Si ratio and the like, the Cu-Si and the vacancy form an aging early cluster, so that the dispersion precipitation of a strengthening phase is promoted, and the aging strengthening phase (Mg) is improved2Si) content, and obtaining higher strength of the alloy;
(3) the invention also adds a proper amount of Cu element, avoids forming Cu-containing phases such as Q phase and theta phase and can obtain better corrosion resistance. The aluminum alloy obtained by the invention has medium and high strength and high corrosion resistance, and is suitable for being used as an aluminum alloy for automobile structural parts or applied to sectional materials thereof.
Drawings
FIG. 1 is a microstructure diagram of an aluminum alloy obtained in example 1;
FIG. 2 is a microstructure diagram of the aluminum alloy obtained in comparative example 1.
Detailed Description
The present invention is specifically described below with reference to examples in order to facilitate understanding of the present invention by those skilled in the art. It should be particularly noted that the examples are given solely for the purpose of illustration and are not to be construed as limitations on the scope of the invention, as non-essential improvements and modifications to the invention may occur to those skilled in the art, which fall within the scope of the invention as defined by the appended claims. Meanwhile, the raw materials mentioned below are not specified in detail and are all commercially available products; the process steps or extraction methods not mentioned in detail are all process steps or extraction methods known to the person skilled in the art.
Examples 1 to 3 and comparative examples 1 to 3
Table 1-1 compositions and weight percentages of the obtained aluminum alloys of examples 1-3 (ingot numbers correspond to # 1-3, respectively) and comparative examples 1-3 (ingot numbers correspond to # 4-6, respectively).
| Ingot number | Group of | Mg | Si | Cu | Hf | Cr | Zr | Mn | Fe | Al |
| 1# | Example 1 | 0.9 | 1.1 | 0.20 | 0.35 | 0.25 | 0.15 | 0.30 | <0.5 | Balance of |
| 2# | Example 2 | 0.95 | 1.2 | 0.20 | 0.35 | 0.25 | 0.15 | 0.35 | <0.5 | Balance of |
| 3# | Examples3 | 1.0 | 1.0 | 0.20 | 0.45 | 0.25 | 0.15 | 0.35 | <0.5 | Balance of |
| 4# | Comparative example 1 | 0.9 | 1.1 | 0.20 | - | 0.25 | 0.15 | 0.30 | <0.5 | Balance of |
| 5# | Comparative example 2 | 1.1 | 1.0 | - | 0.35 | 0.25 | 0.15 | 0.40 | <0.5 | Balance of |
| 6# | Comparative example 3 | 0.9 | 1.1 | 0.6 | 0.35 | 0.25 | 0.15 | 0.30 | <0.5 | Balance of |
The preparation method of the aluminum alloy comprises the following steps:
1) proportioning raw materials: the raw materials are proportioned according to the components and the weight percentage thereof described in the table 1-1, and 4# alloy without Hf rare earth element, 5# alloy without Cu element and 6# alloy with higher addition amount of Cu element are used as comparison;
2) smelting raw materials: firstly melting a high-purity aluminum ingot at 725 ℃, then adding Al-Mn10, Al-Cu50, Al-Si15, Al-Cr10 and Al-Zr5 intermediate alloys, continuously heating to 750 ℃, adding the Al-Hf intermediate alloy, and adding 99.99% of magnesium and a covering agent after the intermediate alloys are melted;
3) refining: adding hexachloroethane into the completely molten metal solution for degassing treatment, fully stirring, maintaining the metal temperature within the range of 740 ℃ during refining, fully standing after refining, and keeping the standing time for not less than 30 minutes;
4) pouring: cooling the temperature of the molten metal to 730 ℃, then cooling the temperature of the melt to about 720 ℃, adding an Al-5 wt% Ti-1 wt% B grain refiner, properly stirring, fully standing, and pouring the molten metal into a metal mold with the temperature of 420-450 ℃ to obtain an alloy ingot;
5) three-stage homogenization heat treatment: heating the alloy sample after smelting and casting to 320 ℃, and preserving heat for 18 h; continuing to heat to 460 ℃ at the speed of 30 ℃/h for 24h, continuing to heat to 520 ℃ at the speed of 30 ℃/h for 16h, then cooling to 100 ℃ along with the furnace at the cooling rate of 30 ℃/h, and taking out the sample;
6) hot rolling deformation: carrying out hot rolling on the sample taken out in the step 5): the initial rolling temperature is 540 ℃, the pass reduction is 4-12%, the total deformation of hot rolling is more than 92%, and the final rolling temperature is lower than 320 ℃ to obtain a hot rolled plate;
7) cold rolling deformation, intermediate annealing and cold rolling deformation: taking out the hot rolled plate obtained in the step 6), wherein the cold rolling deformation pass reduction is 10-20%, and the total deformation is 50%; the intermediate annealing is carried out by raising the temperature to 400 ℃ at the heating rate of 100 ℃/min for 2h, and then directly taking out for air cooling; the total deformation of the continuous cold rolling deformation is between 60 and 85 percent, and the pass reduction is between 15 and 30 percent;
8) solution treatment: carrying out solution treatment on the cold-rolled sheet obtained in the step 7), and carrying out solution treatment for 45min in a 545 ℃ heat treatment furnace, wherein the temperature rise rate of the sample is more than 120 ℃/min;
9) quenching treatment: quenching the alloy sample subjected to the solution treatment in the step 8) into water at room temperature from the solution treatment temperature;
10) aging treatment: transferring the sample obtained in the step 9) into an isothermal aging furnace at 180 ℃ for aging treatment for 12 hours, and marking the obtained aluminum alloy finished products as 1# to 6# aluminum alloys respectively.
Product performance testing
The aluminum alloy plates obtained in examples 1-3 and comparative examples 1-3 and subjected to aging treatment are respectively subjected to detection of tensile strength, yield strength, elongation and salt spray corrosion rate. The results obtained are shown in the following tables 1-2.
Tables 1 to 2
As can be seen from tables 1-2: the corrosion-resistant rare earth aluminum alloy (finished aluminum alloy products obtained in examples 1-3) obtained by the invention has alloy tensile strength exceeding 395MPa, elongation exceeding 17.5 percent and salt spray corrosion rate not exceeding 0.014 g/(m)2D); in comparative examples 1-3, it is obvious that Hf element is not added in comparative example 1, and the obtained 4# aluminum alloy has low strength, plasticity and corrosion resistance; comparative example 2The Cu element is added, the plasticity and the corrosion resistance of the obtained 5# aluminum alloy are improved compared with those of a comparative example 1, but the strength is obviously reduced; compared with the comparative example 1, the 6# aluminum alloy obtained by adding the Cu element with higher content in the comparative example 3 has obviously improved strength, but poorer plasticity and corrosion resistance. Therefore, the mechanical property and the corrosion resistance of the corrosion-resistant aluminum alloy can meet the requirements of automobile structure aluminum alloy, and the corrosion-resistant aluminum alloy has wide application prospect.
In addition, FIG. 1 is a microstructure diagram of the aluminum alloy obtained in example 1, and it can be seen from FIG. 1 that the aluminum alloy obtained in example 1 is subjected to a three-stage homogenization heat treatment process to precipitate and form highly stable and dispersively distributed (Al, Cr)3(Hf, Zr) phase, thereby greatly improving the corrosion resistance of the aluminum alloy. FIG. 2 is a microstructure diagram of the aluminum alloy obtained in comparative example 1, and it can be seen from FIG. 2 that the aluminum alloy obtained in comparative example 1, to which no Hf microalloy element is added, is precipitated to form (Al, Cr) by the three-stage homogenization heat treatment process3The Zr phase is not uniformly distributed, and the effect of refining the grain size of the alloy is poor.
It will be obvious to those skilled in the art that many simple derivations or substitutions can be made without inventive effort without departing from the inventive concept. Therefore, simple modifications to the present invention by those skilled in the art according to the present disclosure should be within the scope of the present invention. The above embodiments are preferred embodiments of the present invention, and all similar processes and equivalent variations to those of the present invention should fall within the scope of the present invention.
Claims (10)
1. The aluminum alloy is characterized by comprising the following components in percentage by weight: 0.8 to 1.2 percent of Mg, 0.9 to 1.3 percent of Si, 0.1 to 0.3 percent of Cu, 0.2 to 0.4 percent of Mn, 0.15 to 0.35 percent of Cr, 0.1 to 0.3 percent of Zr, 0.2 to 0.6 percent of Hf, and less than or equal to 0.5 percent of Fe.
2. The aluminum alloy of claim 1, comprising, in weight percent: 0.9 to 1.1 percent of Mg, 1.0 to 1.2 percent of Si, 0.15 to 0.25 percent of Cu, 0.2 to 0.4 percent of Mn, 0.05 to 0.1 percent of Cr, 0.3 to 0.5 percent of Hf, 0.15 to 0.25 percent of Zr and less than or equal to 0.5 percent of Fe.
3. The aluminum alloy of claim 1 or 2, wherein the aluminum alloy has a content of impurity elements of 0.15% by weight or less.
4. The aluminum alloy of claim 1 or 2, wherein the mass ratio of Mg to Si is (0.8-1.1): 1; the mass ratio of Mn to Fe is (0.5-0.6): 1.
5. The aluminum alloy according to claim 1 or 2, wherein the mass ratio of Cu to Si is (0.15-0.25): 1.
6. A method of producing an aluminium alloy according to any one of claims 1 to 5, comprising the steps of:
1) preparing raw materials: weighing the raw materials with the formula content of the aluminum alloy for later use;
2) preparing an alloy ingot: smelting, refining and pouring the raw materials to obtain an alloy ingot;
3) three-stage homogenization heat treatment: carrying out three-stage homogenization heat treatment on the alloy ingot obtained in the step 2), and taking out a sample;
4) quenching treatment: carrying out solid solution and quenching treatment on the sample obtained in the step 3);
5) aging treatment: carrying out aging treatment on the quenched sample to obtain the aluminum alloy;
in the step 3), the three-stage homogenization heat treatment process comprises the following steps: heating the alloy ingot casting at a heating rate of 20-50 ℃/h, and keeping the temperature for 15-30h when the temperature is raised from room temperature to 360 ℃ of 300-; then continuously heating to 450-480 ℃ at the speed of 20-50 ℃/h, and preserving the temperature for 15-30 h; then continuously heating to 500-540 ℃ at the heating rate of 20-50 ℃/h, and preserving the heat for 15-30 h; finally, cooling to below 100 ℃ at a cooling rate of 20-50 ℃/h, and finishing.
7. The method according to claim 6, wherein the processes further included between step 3) and step 4) are a hot rolling process and a cold rolling process.
8. The preparation method according to claim 6, wherein in the step 5), the temperature of the aging treatment is 160-190 ℃, and the time length of the aging treatment is 6-24 h.
9. The method for preparing the alloy material according to claim 8, wherein the temperature of the aging treatment is 180-190 ℃, and the time duration of the aging treatment is 8-18 h.
10. Use of an aluminium alloy according to any one of claims 1 to 5 as an aluminium alloy for automotive structural parts or in profiles thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215752.1A CN112522552B (en) | 2020-11-04 | 2020-11-04 | Corrosion-resistant aluminum alloy and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215752.1A CN112522552B (en) | 2020-11-04 | 2020-11-04 | Corrosion-resistant aluminum alloy and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112522552A true CN112522552A (en) | 2021-03-19 |
| CN112522552B CN112522552B (en) | 2022-04-26 |
Family
ID=74979612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011215752.1A Active CN112522552B (en) | 2020-11-04 | 2020-11-04 | Corrosion-resistant aluminum alloy and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112522552B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086040A (en) * | 2021-08-20 | 2022-02-25 | 中国航发北京航空材料研究院 | A kind of aluminum magnesium silicon scandium zirconium alloy and preparation method thereof |
| CN115717206A (en) * | 2022-10-28 | 2023-02-28 | 北京科技大学 | High-strength and high-corrosion-resistance Al-Mg-Si alloy and preparation method thereof |
| WO2024250292A1 (en) * | 2023-06-09 | 2024-12-12 | 佛山科学技术学院 | Ultrahigh-strength, high-toughness, high corrosion-resistant and weldable 7000 series aluminum alloy and preparation method therefor |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10163039C1 (en) * | 2001-12-21 | 2003-07-24 | Daimler Chrysler Ag | Hot and cold formable component made of an aluminum alloy and process for its production |
| US20040062946A1 (en) * | 2002-06-24 | 2004-04-01 | Rinze Benedictus | Method of producing a high strength balanced Al-Mg-Si alloy and a weldable product of that alloy |
| WO2005049878A2 (en) * | 2003-10-29 | 2005-06-02 | Corus Aluminium Walzprodukte Gmbh | Method for producing a high damage tolerant aluminium alloy |
| US20060032560A1 (en) * | 2003-10-29 | 2006-02-16 | Corus Aluminium Walzprodukte Gmbh | Method for producing a high damage tolerant aluminium alloy |
| JP2007500793A (en) * | 2003-05-24 | 2007-01-18 | ダイムラークライスラー・アクチェンゲゼルシャフト | High strength heat resistant tough aluminum alloy castings |
| EP2088216A1 (en) * | 2008-02-07 | 2009-08-12 | Audi AG | Aluminium alloy |
| EP2110451A1 (en) * | 2008-04-18 | 2009-10-21 | United Technologies Corporation | L12 aluminium alloys with bimodal and trimodal distribution |
| DE102009036056A1 (en) * | 2009-08-04 | 2011-02-10 | Daimler Ag | Impact-resistant aluminum alloy suitable for thick-walled die castings, especially crank cases, has specified composition |
| CN103045913A (en) * | 2012-11-09 | 2013-04-17 | 安徽欣意电缆有限公司 | Al-Fe-Ir-RE aluminum alloy, preparation method thereof and power cable |
| CN103314136A (en) * | 2010-09-10 | 2013-09-18 | 凯密特尔有限责任公司 | Method for coating metallic surfaces with a polymer-containing coating agent, the coating agent and use thereof |
| CN103469029A (en) * | 2013-08-12 | 2013-12-25 | 安徽环宇铝业有限公司 | Production technology of aluminum alloy sheet for high-speed train compartment |
| JP2016108612A (en) * | 2014-12-05 | 2016-06-20 | 古河電気工業株式会社 | Aluminum alloy wire rod, aluminum alloy twisted wire, covered cable, wire harness, and method for producing aluminum alloy wire rod |
| CN105838943A (en) * | 2016-05-31 | 2016-08-10 | 广西南南铝加工有限公司 | Al-Mg-Si aluminum alloy and extrusion method for sectional bar of Al-Mg-Si aluminum alloy |
| CN108559889A (en) * | 2018-04-27 | 2018-09-21 | 佛山科学技术学院 | Strong Alcoa and preparation method thereof in a kind of microalloying |
| CN108977705A (en) * | 2018-06-25 | 2018-12-11 | 广西南南铝加工有限公司 | The preparation method of strong Al-Mg-Mn-Si sheet alloy in a kind of |
-
2020
- 2020-11-04 CN CN202011215752.1A patent/CN112522552B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10163039C1 (en) * | 2001-12-21 | 2003-07-24 | Daimler Chrysler Ag | Hot and cold formable component made of an aluminum alloy and process for its production |
| US20040062946A1 (en) * | 2002-06-24 | 2004-04-01 | Rinze Benedictus | Method of producing a high strength balanced Al-Mg-Si alloy and a weldable product of that alloy |
| JP2007500793A (en) * | 2003-05-24 | 2007-01-18 | ダイムラークライスラー・アクチェンゲゼルシャフト | High strength heat resistant tough aluminum alloy castings |
| WO2005049878A2 (en) * | 2003-10-29 | 2005-06-02 | Corus Aluminium Walzprodukte Gmbh | Method for producing a high damage tolerant aluminium alloy |
| US20060032560A1 (en) * | 2003-10-29 | 2006-02-16 | Corus Aluminium Walzprodukte Gmbh | Method for producing a high damage tolerant aluminium alloy |
| EP2088216A1 (en) * | 2008-02-07 | 2009-08-12 | Audi AG | Aluminium alloy |
| EP2110451A1 (en) * | 2008-04-18 | 2009-10-21 | United Technologies Corporation | L12 aluminium alloys with bimodal and trimodal distribution |
| DE102009036056A1 (en) * | 2009-08-04 | 2011-02-10 | Daimler Ag | Impact-resistant aluminum alloy suitable for thick-walled die castings, especially crank cases, has specified composition |
| CN103314136A (en) * | 2010-09-10 | 2013-09-18 | 凯密特尔有限责任公司 | Method for coating metallic surfaces with a polymer-containing coating agent, the coating agent and use thereof |
| CN103045913A (en) * | 2012-11-09 | 2013-04-17 | 安徽欣意电缆有限公司 | Al-Fe-Ir-RE aluminum alloy, preparation method thereof and power cable |
| CN103469029A (en) * | 2013-08-12 | 2013-12-25 | 安徽环宇铝业有限公司 | Production technology of aluminum alloy sheet for high-speed train compartment |
| JP2016108612A (en) * | 2014-12-05 | 2016-06-20 | 古河電気工業株式会社 | Aluminum alloy wire rod, aluminum alloy twisted wire, covered cable, wire harness, and method for producing aluminum alloy wire rod |
| CN105838943A (en) * | 2016-05-31 | 2016-08-10 | 广西南南铝加工有限公司 | Al-Mg-Si aluminum alloy and extrusion method for sectional bar of Al-Mg-Si aluminum alloy |
| CN108559889A (en) * | 2018-04-27 | 2018-09-21 | 佛山科学技术学院 | Strong Alcoa and preparation method thereof in a kind of microalloying |
| CN108977705A (en) * | 2018-06-25 | 2018-12-11 | 广西南南铝加工有限公司 | The preparation method of strong Al-Mg-Mn-Si sheet alloy in a kind of |
Non-Patent Citations (4)
| Title |
|---|
| 刘方军等: "基于相图计算的汽车车身用Al-Mg-Si系合金成分设计", 《装备制造技术》 * |
| 张福豹等: "锆微合金化6013型铝合金的抗晶间腐蚀性能", 《航空材料学报》 * |
| 王丽萍等: "6082铝合金铸锭均匀化工艺及过烧组织研究", 《有色金属加工》 * |
| 贺春林等: "6000系铝合金晶间腐蚀研究进展", 《沈阳大学学报(自然科学版)》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086040A (en) * | 2021-08-20 | 2022-02-25 | 中国航发北京航空材料研究院 | A kind of aluminum magnesium silicon scandium zirconium alloy and preparation method thereof |
| CN114086040B (en) * | 2021-08-20 | 2022-06-28 | 中国航发北京航空材料研究院 | A kind of aluminum magnesium silicon scandium zirconium alloy and preparation method thereof |
| CN115717206A (en) * | 2022-10-28 | 2023-02-28 | 北京科技大学 | High-strength and high-corrosion-resistance Al-Mg-Si alloy and preparation method thereof |
| CN115717206B (en) * | 2022-10-28 | 2024-02-13 | 北京科技大学 | A high-strength and high-corrosion-resistant Al-Mg-Si alloy and its preparation method |
| WO2024250292A1 (en) * | 2023-06-09 | 2024-12-12 | 佛山科学技术学院 | Ultrahigh-strength, high-toughness, high corrosion-resistant and weldable 7000 series aluminum alloy and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112522552B (en) | 2022-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112458344B (en) | High-strength corrosion-resistant aluminum alloy and preparation method and application thereof | |
| CN102676962B (en) | Method for manufacturing an extruded material of heat treatment type Al-Zn-Mg series aluminum alloy | |
| CN110983216A (en) | Process for reducing coarse crystal generation on surface of automotive extrusion forging rod | |
| CN103789583A (en) | Fast aging response type Al-Mg-Si-Cu-Zn series alloy and preparation method thereof | |
| CN111004950B (en) | 2000 aluminium alloy section bar and its manufacturing method | |
| CN103243247A (en) | Aluminum alloy and preparation method thereof | |
| CN112522552A (en) | Corrosion-resistant aluminum alloy and preparation method and application thereof | |
| CN103509980A (en) | Al-Mg-Si-CU-Zn aluminum alloy and preparation method and application thereof | |
| CN112626386A (en) | High-strength corrosion-resistant Al-Mg-Si-Cu aluminum alloy and preparation method and application thereof | |
| CN104975209A (en) | 6000 series aluminum alloy material with high natural aging stability, aluminum alloy plate and preparing method of aluminum alloy plate | |
| CN104451285A (en) | Al-Mg alloy sheet for car body and manufacturing method of Al-Mg alloy sheet | |
| CN103255323A (en) | Al-Mg-Zn-Cu alloy and preparation method thereof | |
| CN112522550B (en) | Aluminum alloy with rapid aging response and preparation method and application thereof | |
| JP3845312B2 (en) | Aluminum alloy plate for forming and method for producing the same | |
| CN112522551B (en) | A kind of Ag microalloyed aluminum alloy with rapid aging response and its preparation method and application | |
| CN112626384A (en) | Aluminum alloy with medium strength and high plasticity as well as preparation method and application thereof | |
| CN112626385B (en) | High-plasticity quick-aging-response aluminum alloy and preparation method and application thereof | |
| JPH04341546A (en) | Production of high strength aluminum alloy-extruded shape material | |
| JP5050577B2 (en) | Aluminum alloy plate for forming process excellent in deep drawability and bake-proof softening property and method for producing the same | |
| CN113528903A (en) | 5052 aluminum alloy with high bending performance and preparation method thereof | |
| JPH0874014A (en) | Method for producing aluminum alloy sheet having high formability and good bake hardenability | |
| JPH05112840A (en) | Baking hardenability al-mg-si alloy sheet excellent in press formability and its manufacture | |
| CN115747535B (en) | Manufacturing method for improving edge covering performance of 6016 automobile stamping plate | |
| KR100892176B1 (en) | Aluminum alloy | |
| JPH11350058A (en) | Aluminum alloy sheet excellent in formability and baking hardenability and its production |
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: 20231016 Address after: Room 2102, Building 7, Wuyue Garden, Puji Street Office, Kangming Road, Wuhua District, Kunming City, Yunnan Province, 650000 Patentee after: Yunnan Lvao New Technology Development Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20231016 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 528000 No. 18, Jiangwan Road, Chancheng District, Guangdong, Foshan Patentee before: FOSHAN University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231127 Address after: 650031 No. 86 Yuantong North Road, Wuhua District, Yunnan, Kunming Patentee after: Kunming Metallurgical Research Institute Co.,Ltd. Address before: Room 2102, Building 7, Wuyue Garden, Puji Street Office, Kangming Road, Wuhua District, Kunming City, Yunnan Province, 650000 Patentee before: Yunnan Lvao New Technology Development Co.,Ltd. |