CN104313413A - Al-Mg-Zn series alloy and preparation method of alloy plate of Al-Mg-Zn series alloy - Google Patents
Al-Mg-Zn series alloy and preparation method of alloy plate of Al-Mg-Zn series alloy Download PDFInfo
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- CN104313413A CN104313413A CN201410577461.5A CN201410577461A CN104313413A CN 104313413 A CN104313413 A CN 104313413A CN 201410577461 A CN201410577461 A CN 201410577461A CN 104313413 A CN104313413 A CN 104313413A
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- 239000000956 alloy Substances 0.000 title claims abstract description 88
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 87
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 26
- 229910000838 Al alloy Inorganic materials 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims description 14
- 230000032683 aging Effects 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 238000005097 cold rolling Methods 0.000 claims description 6
- 239000006104 solid solution Substances 0.000 claims description 6
- 230000001550 time effect Effects 0.000 claims description 5
- 235000019628 coolness Nutrition 0.000 claims description 4
- 238000000265 homogenisation Methods 0.000 claims description 4
- 238000005098 hot rolling Methods 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 230000000171 quenching Effects 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 229910017706 MgZn Inorganic materials 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract 3
- -1 ferrous metals Chemical class 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 description 11
- 239000000203 mixture Substances 0.000 description 6
- 229910001297 Zn alloy Inorganic materials 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 4
- 229910018134 Al-Mg Inorganic materials 0.000 description 3
- 229910018467 Al—Mg Inorganic materials 0.000 description 3
- 229910000905 alloy phase Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000003628 erosive Effects 0.000 description 2
- 229910018571 Al—Zn—Mg Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009114 investigational therapy Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- C22C21/06—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
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium 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
- C22F1/047—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
Abstract
The invention discloses an Al-Mg-Zn series alloy and a preparation method of an alloy plate of the Al-Mg-Zn series alloy, belonging to the field of non-ferrous metals. The Al-Mg-Zn series alloy comprises the following components in percentage by mass: 4.0-5.7% of Mg, 2.5-4.0% of Zn, 0-0.4% of Cu, 0.4-1.2% of Mn, 0-0.1% of Cr, 0-0.15% of Ti, 0.05-0.25% of Zr, 0-0.4% of Fe, 0-0.4% of Si and the balance of Al. The alloy sufficiently utilizes the reinforcement functions of main reinforcement phase eta-MgZn and T-Mg2Al3Zn3 and the transition phase of the Al-Mg-Zn series alloy, and by adopting the preparation process disclosed by the invention, the Al-Mg-Zn series alloy is excellent in timing reinforcement effect in the timing separation process. An alloy plate prepared from the Al-Mg-Zn series alloy is relatively excellent in strength and ductility when compared with a conventional H131 cold-rolled plate. The prepared alloy plate is applicable to relevant alloy fields such as plate armors and ships.
Description
Technical field
The invention belongs to non-ferrous metal and preparation field thereof, particularly relating to a kind of high strength can the Al-Mg-Zn type alloy of industrial applications, and the plate product obtained by this alloy.
Background of invention
In order to reduce the benefit of fuel used to generate power and raising maximum dimensions of vehicle, reducing structural weight has been a kind of inevitable trend.The 5 ××× line aluminium alloys of high Mg have good erosion resistance, plasticity, weldability and medium tenacity, it is one of optimal selection of plate armour and boats and ships loss of weight sheet material, the 5 ××× line aluminium alloys as H321 and H116 state are important feature materials of large ship sheet material, and 5 ××× line aluminium alloys of H131 and H136 state are then widely used in military armor car outside plate and tank base plate.The alloys such as current existing AA5083, AA5383 and AA5059 in the world all achieve the application of successful in this field.The AA5059 alloy that wherein association of Alcoa registers for 1999 significantly improves the content of Mg, Zn and Cu in alloy on the basis of AA5083 alloy, keeping under the prerequisite that unit elongation is substantially constant, significantly improve yield strength and the tensile strength of alloy, keep the erosion resistance of alloy to be not less than AA5083 alloy simultaneously.This alloy just progressively occupies the market in plate armour and Marine Materials field with the over-all properties of its excellence.
The compositing range of above-mentioned three kinds of alloys is respectively: AA5083:Mg content is 4.0 to 4.9, Mn content be 0.4 to 1.0, Cr content is 0.05 to 0.25, Zn content is up to 0.25, Cu content and is up to 0.1, Ti content and is up to 0.15, Fe content is up to 0.4, Si content and is up to 0.4; To be 4.0 to 5.2, Mn content be AA5383:Mg content that 0.7 to 1.0, Cr content is up to that 0.25, Zn content is up to that 0.4, Cu content is up to that 0.2, Ti content is up to that 0.15, Fe content is up to that 0.25, Si content is up to 0.25, Zr content is up to 0.2; AA5059:Mg content is 5.0 to 6.0, Mn content is that 0.6 to 1.2, Cr content is up to 0.25, Zn content is that 0.4 to 0.9, Cu content is up to 0.25, Ti content and is up to 0.2, Fe content is up to 0.5, Si content, and to be up to 0.45, Zr content be 0.05 to 0.25.Wherein AA5059 alloy is also disclosed in US-6695935-B1, US-6238495-B1, CN-101233252-A and CN-101631882-A patent.
The patent (application number 201410117124.8) that we have applied at present is on the basis of AA5059 alloy, further trace improves the content of Zn in alloy, by the complete processing of optimized alloy, further increase the mechanical property of alloy H131 state and the mechanical property of H321 state and corrosion resistance.This alloy not only can be applicable to Marine Materials field, also can be used as armor plate material etc. simultaneously.Another part of patent (application number 201410381094.1) is continued on this basis to add Zn content and by the complete processing of optimized alloy, is increased the cold rolling amount of alloy, significantly improve intensity and the anti intercrystalline corrosion performance of alloy.
The present invention is based on Al-Zn-Mg (7xxx system) alloy precipitation precipitation and form spherical GP district → η ' → η (MgZn
2), spherical GP district → T' → T (Al
2mg
3zn
3), fixation rates plays the scientific thought of precipitation strength effect, proposes the new ideas of 5xxx system alloy designs.Reduce the relative solid solution content of Mg by introducing a large amount of Zn in 5xxx system alloy, a large amount of consumption Al-Mg precipitated phase, impels intracrystalline to generate a large amount of containing Zn compound phase, plays precipitation strength effect.The solid solution composition of adjustment alloy, can not the 5xxx system alloy of thermal treatment precipitation strength change into can Precipitation intensified type alloy, significantly improve the mechanical property of alloy.This is the essential distinction that present method and AA5059 alloy add a small amount of Zn.Provide new approaches with regard to the new alloy for researching and developing high-strength high-elongation ratio like this, there is good investigation and application prospect.
Summary of the invention:
In order to overcome the deficiencies in the prior art, separate out dissatisfactory feature for conventional Al-Mg system alloy aging, develop a kind of can Precipitation strengthening new A l-Mg-Zn system alloy, significantly improve the mechanical property of 5 ××× line aluminium alloys.
First the present invention is selected the composition range of Al-Mg-Zn alloy by phasor Composition Design and optimization, then by the alloy designed by the complete processing preparations such as melting and casting, and its cold rolling state and Precipitation state are studied, finally determine the composition with cold rolling state and Precipitation strengthening state Al-Mg-Zn alloy.
The first object of the present invention is to provide a kind of novel 5 ××× system Al-Mg-Zn alloys with high strength, it is characterized in that the chemical composition of this alloy has mass percentage content and is: 4.0 ~ 5.7%Mg, 2.5 ~ 4.0%Zn, 0 ~ 0.4%Cu, 0.4 ~ 1.2%Mn, 0 ~ 0.1%Cr, 0 ~ 0.15%Ti, 0.05 ~ 0.25%Zr, 0 ~ 0.4%Fe, 0 ~ 0.4%Si, all the other are Al.
Preferably, the mass percentage content of described aluminium alloy is, 4.3 ~ 5.5%Mg, 2.5 ~ 3.5%Zn, 0 ~ 0.2%Cu, 0.6 ~ 1.0%Mn, 0 ~ 0.1%Cr, 0 ~ 0.15%Ti, 0.05 ~ 0.25%Zr, 0 ~ 0.2%Fe, 0 ~ 0.2%Si, and all the other are Al.
The second object of the present invention is the preparation method proposing a kind of above-mentioned novel 5 ××× system Al-Mg-Zn alloys.Described alloy aging precipitation strength state sheet material preparation technology is as follows: the melting and casting → two-step homogenization annealing → hot rolling deformation → process annealing → cold roller and deformed → solid solution Water Quenching → twin-stage T6 ageing treatment of alloying constituent selection → alloy.
Preferably, the two-step homogenization annealing process of described aluminum alloy plate materials is specially: the alloy sample after melting and casting is started DEG C insulation 3 ~ 8h from room temperature to 425 ~ 440 with 20 ~ 40 DEG C/h temperature rise rate, and then continue to be warming up to 510 ~ 535 DEG C of insulation 5 ~ 15h with 20 ~ 40 DEG C/h temperature rise rate, be finally cooled to room temperature with 20 ~ 40 DEG C/h rate of temperature fall with stove again.
Preferably, the hot rolling deformation technique of described aluminum alloy plate materials is specially: sample is heated to 470 ~ 500 DEG C of insulation 2h, carry out the thermal distortion that deflection is more than 90%, finishing temperature is greater than 380 DEG C.
Preferably, the intermediate annealing process of described aluminum alloy plate materials is specially: sample is heated to 350 ~ 450 DEG C of insulations 0.5 ~ 2h, then air coolings.
Preferably, the cold roller and deformed technique of described aluminum alloy plate materials is specially: sample cold rolling reduction is 10 ~ 30%.
Preferably, solid solution and the Water Quenching technique of described aluminum alloy plate materials are specially: sample is incubated 10 ~ 30min in the salt bath furnace of 500 ~ 535 DEG C, then directly carries out shrend.
Preferably, the twin-stage T6 aging treatment process of described aluminum alloy plate materials is specially: the first step ageing treatment of sample being carried out in the heat treatment furnace of 50 ~ 100 DEG C 12 ~ 24h, and then the second stage ageing treatment of carrying out 10 ~ 30h at 110 ~ 160 DEG C.
Pass through technique scheme, the present invention has following superiority: novel 5 ××× system Al-Mg-Zn alloys of the present invention, regulated and controled by fixation rates, finally make even dispersion in alloy substrate be distributed with a large amount of strengthening phase, make the Al-Mg alloy of alloy phase to the cold rolling state of tradition have larger strength enhancing.Alloy of the present invention is highly suitable for the further development and production etc. of plate armour and boats and ships aluminum alloy materials.
Embodiment
With reference now to the following examples, the present invention is described.
In laboratory scope, prepared 9 kinds of alloys, its interalloy 1, alloy 2, alloy 4, alloy 5, alloy 6 and alloy 8 is that alloy 3, alloy 7 and alloy 9 is 3 embodiments of the present invention with reference to alloy.
Table 1 carries out an invention alloy composition table (mass percent, wt%)
The preparation method of the reference state H131 cold deformation state of alloy is as follows: will carry out an invention alloy after melting and casting, DEG C insulation 3 ~ 8h from room temperature to 425 ~ 440 is started with 20 ~ 40 DEG C/h temperature rise rate, and then continue to be warming up to 500 ~ 535 DEG C of insulation 5 ~ 15h with 20 ~ 40 DEG C/h temperature rise rate, be finally cooled to room temperature with 20 ~ 40 DEG C/h rate of temperature fall with stove again.Sample is heated to 470 ~ 500 DEG C of insulation 2h, carry out the thermal distortion that deflection is more than 90%, finishing temperature is greater than 380 DEG C.Sample is heated to 350 ~ 450 DEG C of insulation 0.5 ~ 2h, takes out air cooling.Then sample is carried out deflection be 10 ~ 30% cold roller and deformed.
The preparation method of twin-stage T6 ageing treatment state of the present invention is as follows: will carry out an invention alloy after melting and casting, DEG C insulation 3 ~ 8h from room temperature to 425 ~ 440 is started with 20 ~ 40 DEG C/h temperature rise rate, and then continue to be warming up to 500 ~ 535 DEG C of insulation 5 ~ 15h with 20 ~ 40 DEG C/h temperature rise rate, be finally cooled to room temperature with 20 ~ 40 DEG C/h rate of temperature fall with stove again.Sample is heated to 470 ~ 500 DEG C of insulation 2h, carry out the thermal distortion that deflection is more than 90%, finishing temperature is greater than 380 DEG C.Sample is heated to 350 ~ 450 DEG C of insulation 0.5 ~ 2h, takes out air cooling.Then sample is carried out deflection be 10 ~ 30% cold roller and deformed.Sample is incubated 10 ~ 30min in the salt bath furnace of 500 ~ 535 DEG C, then sample is directly carried out shrend.Sample is carried out in the heat treatment furnace of 50 ~ 100 DEG C the first step ageing treatment of 12 ~ 36h, and then carry out the second stage ageing treatment of 10 ~ 40h at 110 ~ 160 DEG C.
The mechanical property that measured alloy H131 Cold Rolled Strip and two-stage time effect separate out T6 state is as shown in table 2.
Show the mechanical property of 2-in-1 gold
Known by table 2, tensile strength and the yield strength of reference alloy 1, alloy 2, alloy 4, alloy 5, alloy 6 and alloy 8 two-stage time effect T6 state are all low than respective alloy H131 state; But tensile strength and the yield strength ratio respective alloy H131 state of the two-stage time effect T6 state of the alloy 3 prepared by the present invention, alloy 7 and alloy 9 are high, and itself and existing with reference to the alloy phase intensity more excellent than having and unit elongation.According to the sheet alloy that alloying constituent of the present invention and preparation technology obtain, there is very excellent Precipitation strengthening effect.
Claims (9)
1. an Al-Mg-Zn system alloy, is characterized in that, Al-Mg-Zn system alloy mass degree is, 4.0 ~ 5.7%Mg, 2.5 ~ 4.0%Zn, 0 ~ 0.4%Cu, 0.4 ~ 1.2%Mn, 0 ~ 0.1%Cr, 0 ~ 0.15%Ti, 0.05 ~ 0.25%Zr, 0 ~ 0.4%Fe, 0 ~ 0.4%Si, all the other are Al.
2. Al-Mg-Zn system according to claim 1 alloy, is characterized in that, described Al-Mg-Zn system alloy mass is, 4.3 ~ 5.5%Mg, 2.5 ~ 3.5%Zn, 0 ~ 0.2%Cu, 0.6 ~ 1.0%Mn, 0 ~ 0.1%Cr, 0 ~ 0.15%Ti, 0.05 ~ 0.25%Zr, 0 ~ 0.2%Fe, 0 ~ 0.2%Si, all the other are Al.
3. adopt the method for the Al-Mg-Zn system reasonable offer aluminum alloy plate materials described in claim 1 or 2, it is characterized in that, described preparation method comprises the following steps: melting and casting; Two-step homogenization is annealed; Hot rolling deformation; Process annealing; Cold roller and deformed; Solid solution and Water Quenching; Two-stage time effect process.
4. the method preparing aluminum alloy plate materials according to claim 3, it is characterized in that, the two-step homogenization annealing process of described aluminum alloy plate materials is specially: the alloy sample after melting and casting is started DEG C insulation 3 ~ 8h from room temperature to 425 ~ 440 with the temperature rise rate of 20 ~ 40 DEG C/h, and then continue to be warming up to 500 ~ 535 DEG C of insulation 5 ~ 15h with the temperature rise rate of 20 ~ 40 DEG C/h, be finally cooled to room temperature with the rate of temperature fall of 20 ~ 40 DEG C/h with stove again.
5. the method preparing aluminum alloy plate materials according to claim 3, it is characterized in that, the hot rolling deformation technique of described aluminum alloy plate materials is specially: sample is heated to 470 ~ 500 DEG C of insulation 2h, carry out the thermal distortion that deflection is more than 90%, finishing temperature is greater than 380 DEG C.
6. the method preparing aluminum alloy plate materials according to claim 3, is characterized in that, the intermediate annealing process of described aluminum alloy plate materials is specially: sample is heated to 350 ~ 450 DEG C of insulations 0.5 ~ 2h, then air coolings.
7. the method preparing aluminum alloy plate materials according to claim 3, is characterized in that, the cold roller and deformed technique of described aluminum alloy plate materials is specially: sample cold rolling reduction is 10 ~ 30%.
8. the method preparing aluminum alloy plate materials according to claim 3, it is characterized in that, solid solution and the Water Quenching technique of described aluminum alloy plate materials are specially: sample is incubated 10 ~ 30min in the salt bath furnace of 500 ~ 535 DEG C, then sample is directly carried out shrend.
9. the method preparing aluminum alloy plate materials according to claim 3, it is characterized in that, the two-stage time effect treatment process of described aluminum alloy plate materials is specially: the first step ageing treatment of sample being carried out in the heat treatment furnace of 50 ~ 100 DEG C 12 ~ 36h, and then the second stage ageing treatment of carrying out 10 ~ 40h at 110 ~ 160 DEG C.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694800A (en) * | 2015-03-17 | 2015-06-10 | 中南大学 | High-strength light Al-Mg-Zn alloy |
| CN104862551A (en) * | 2015-05-21 | 2015-08-26 | 北京科技大学 | Al-Mg-Cu-Zn series aluminum alloy and preparation method of aluminum alloy sheet |
| CN105568086A (en) * | 2015-12-31 | 2016-05-11 | 中铝西南铝冷连轧板带有限公司 | 5182 alloy strip for thin tank cover and production method of 5182 alloy strip |
| CN105603274A (en) * | 2016-02-17 | 2016-05-25 | 苏州浦石精工科技有限公司 | High-strength high-tenacity corrosion-resistant cast aluminum alloy and preparation method thereof |
| CN106591751A (en) * | 2016-12-30 | 2017-04-26 | 西南铝业（集团）有限责任公司 | 2060 alloy intermediate annealing process method |
| CN107338404A (en) * | 2017-06-19 | 2017-11-10 | 北京科技大学 | It is a kind of to improve welded seam of aluminium alloy intensity and the method for anti-crack ability |
| TWI612144B (en) * | 2016-11-10 | 2018-01-21 | 中國鋼鐵股份有限公司 | Aluminum-magnesium alloy manufacturing method |
| CN108004441A (en) * | 2017-11-07 | 2018-05-08 | 江阴东华铝材科技有限公司 | A kind of aluminium alloy of high-strength high-conductivity and preparation method thereof |
| CN108251666A (en) * | 2018-02-01 | 2018-07-06 | 广西南南铝加工有限公司 | A kind of preparation process of super high Mg-Al alloy plate |
| CN109898000A (en) * | 2019-03-29 | 2019-06-18 | 郑州轻研合金科技有限公司 | A kind of super high strength heat resistant alloy and preparation method thereof |
| CN109930038A (en) * | 2019-03-29 | 2019-06-25 | 北京科技大学 | A kind of deformation heat treatment method of Al-Mg-Zn sheet alloy |
| CN110541096A (en) * | 2019-09-11 | 2019-12-06 | 北京科技大学 | High-strength easy-to-weld Al-Mg-Zn-Cu alloy and preparation method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694800A (en) * | 2015-03-17 | 2015-06-10 | 中南大学 | High-strength light Al-Mg-Zn alloy |
| CN104862551A (en) * | 2015-05-21 | 2015-08-26 | 北京科技大学 | Al-Mg-Cu-Zn series aluminum alloy and preparation method of aluminum alloy sheet |
| CN105568086A (en) * | 2015-12-31 | 2016-05-11 | 中铝西南铝冷连轧板带有限公司 | 5182 alloy strip for thin tank cover and production method of 5182 alloy strip |
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| TWI612144B (en) * | 2016-11-10 | 2018-01-21 | 中國鋼鐵股份有限公司 | Aluminum-magnesium alloy manufacturing method |
| CN106591751A (en) * | 2016-12-30 | 2017-04-26 | 西南铝业（集团）有限责任公司 | 2060 alloy intermediate annealing process method |
| CN107338404A (en) * | 2017-06-19 | 2017-11-10 | 北京科技大学 | It is a kind of to improve welded seam of aluminium alloy intensity and the method for anti-crack ability |
| CN108004441A (en) * | 2017-11-07 | 2018-05-08 | 江阴东华铝材科技有限公司 | A kind of aluminium alloy of high-strength high-conductivity and preparation method thereof |
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| CN109930038A (en) * | 2019-03-29 | 2019-06-25 | 北京科技大学 | A kind of deformation heat treatment method of Al-Mg-Zn sheet alloy |
| CN109930038B (en) * | 2019-03-29 | 2020-12-29 | 北京科技大学 | Thermomechanical treatment method for Al-Mg-Zn alloy plate |
| CN110541096A (en) * | 2019-09-11 | 2019-12-06 | 北京科技大学 | High-strength easy-to-weld Al-Mg-Zn-Cu alloy and preparation method thereof |
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