CN106834988A - A kind of aluminium-cooper-maganesium alloy obtains the thermo-mechanical treatment process of high combination property - Google Patents
A kind of aluminium-cooper-maganesium alloy obtains the thermo-mechanical treatment process of high combination property Download PDFInfo
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- 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
- C22F1/057—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 copper as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
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- 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
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Abstract
A kind of aluminium-cooper-maganesium alloy obtains the Novel hot machinery handling process of high combination property, belongs to aluminum alloy heat mechanical treatment technical field.The method includes procedure below：Solid solution hot rolling continuous processing, deep cooling deformation, Ageing Treatment.The systems such as solid solution, timeliness, deformation, solid solution, the artificial aging of the treatment of this process reform conventional heat engines tool, so that technological process is simply easily implemented, and enabled aluminum alloy on the premise of good plasticity and toughness are kept with reference to deep cooling deformation and Ageing Treatment, its intensity is improved, and improves the anti-fatigue performance of aluminium-cooper-maganesium alloy.It is suitable to industrial applications.
Description
Technical field：
The present invention relates to the thermo-mechanical treatment process that a kind of aluminium-cooper-maganesium alloy obtains high combination property, aluminium can be effectively improved
Copper magnesium alloy combination property；Belong to aluminum alloy heat mechanical treatment technical field.
Technical background：
With world expanding economy, in order to meet human development the need for, the industrial material for being used
Performance requirement more and more higher.Aluminium alloy as it is a kind of with specific strength high, it is specific stiffness high, good plasticity and toughness, good
The metal material of processing characteristics, is widely applied to the fields such as Aero-Space, automobile.
The aluminium alloy yield of China is huge, but there are many quality problems.Current China industrially, increasingly requires
Aluminum alloy materials have good combination property, but due to the missing of domestic technique, many is applied to the aluminium of aerospace field
Alloy material also relies on import.Therefore the performance of lifting aluminium alloy becomes focus of concern.
The method of common raising aluminium alloy capability has：When regulation and control alloying element, powder metallurgy, injection shape, return again
Effect, thermo-mechanical processi etc..In recent years in order to improve the combination property of aluminium alloy, some newer methods are have also appeared, such as：Deng
Channel angular extrusion (ECAP, equal channel angular pressing), high pressure torsion (HPT, high pressure
Torsion), accumulation rolling (ARB, accumulative roll bonding) etc., these methods have in refining alloy tissue
Thus remarkable result improves the combination property of alloy.But comparatively speaking, thermo-mechanical processi has productivity ratio higher, is more easy to behaviour
Work, lower cost, suitable for continuous production the advantages of, therefore the synthesis of aluminium alloy is improved using the method for thermo-mechanical processi
Performance has bigger practical significance.
In traditional handicraft, after the thermo-mechanical treatment process of aluminium alloy is typically solid solution, first carries out overaging and separate out large scale
Phase, is then deformed, and eliminate second simultaneously for crystal grain thinning afterwards mutually carries out solution hardening again, then carries out at timeliness
Reason.By the treatment of above-mentioned technique, the intensity of aluminium alloy can be effectively improved, but be difficult to realize the intensity and plasticity and toughness of aluminium alloy
Take into account, particularly conventional heat engines tool is processed as crystal grain thinning and passing through the large scale precipitated phase that overaging obtains needs by two
Secondary solid solution is eliminated, and secondary solution treatment can make the microstructures such as the dislocation of deformation generation reply completely and disappear, when follow-up
It is unfavorable for the formation of dislocation substructure during effect treatment, is unfavorable for the raising of its traumatic resistance energy, causes aluminium alloy using process
It is middle that damage is produced because of external force, its hydraulic performance decline is even failed.In addition, traditional thermo-mechanical treatment process flow is often more long
And it is complicated, process costs are high.
Therefore, existing aluminium alloy thermo-mechanical treatment process is optimized, performance is carried out with the synthesis for improving aluminium alloy,
Take into account and be effectively improved on the basis of intensity of aluminum alloy plasticity and toughness, aluminium alloy traumatic resistance energy is improved, as this area urgent need to resolve
Technical barrier.
The content of the invention：
Present invention aim to overcome that the deficiency of prior art provides the heat that a kind of aluminium-cooper-maganesium alloy obtains high combination property
Mechanical treatment technique, combination property and flow that process of the invention can effectively improve aluminium-cooper-maganesium alloy are short, operation side
Just.
A kind of aluminium-cooper-maganesium alloy of the present invention obtains the thermo-mechanical treatment process of high combination property, is by aluminium-cooper-maganesium alloy sample
After being heated to solid solubility temperature insulation, furnace cooling or come out of the stove and be air cooled to rolling temperature and carry out hot rolling, water quenching after hot rolling is then carried out
Deep cooling deformation process, Ageing Treatment is carried out after deep cooling deformation.
A kind of aluminium-cooper-maganesium alloy of the present invention obtains the thermo-mechanical treatment process of high combination property, comprises the steps：
The first step：Solid solution hot rolling continuous processing
By aluminium-cooper-maganesium alloy sample after hot-rolled temperature above solid solution insulation, furnace cooling or come out of the stove and be air cooled to hot-rolled temperature
Hot rolling deformation treatment is carried out, water quenching after hot rolling deformation controls finishing temperature >=440 DEG C；
Second step：Deep cooling deformation process
Aluminium-cooper-maganesium alloy sample obtained by the first step is carried out into deep cooling deformation process；Deep cooling deformation process temperature is less than -120
DEG C, deep cooling deflection >=40%；
3rd step：Ageing Treatment
Ageing Treatment will be carried out by the sample after deep cooling deformation process；
A kind of aluminium-cooper-maganesium alloy of the present invention obtains the thermo-mechanical treatment process of high combination property, in the first step, solid solution insulation
Temperature is 480 DEG C -510 DEG C, solid solution soaking time 30min-3h；Furnace cooling or come out of the stove and be air cooled to hot rolling open rolling after solid solution insulation
Temperature；Hot rolling start rolling temperature is 450 DEG C -480 DEG C, and finishing temperature is 440 DEG C -470 DEG C；Hot rolling deformation amount is 20%-80%；
Preferred solid solution holding temperature is 495 DEG C -505 DEG C, solid solution soaking time 1h-1.5h；
Preferred start rolling temperature is 470 DEG C -480 DEG C, and finishing temperature is 440 DEG C -450 DEG C, and hot rolling deformation amount is 40%-
60%；
A kind of aluminium-cooper-maganesium alloy of the present invention obtains the thermo-mechanical treatment process of high combination property, in second step, deep cooling deformation
Treatment temperature is -190 DEG C to -120 DEG C, deep cooling soaking time 5min-15min；The deflection of deep cooling deformation is 40% to 80%；
Preferred deep cooling deformation process temperature is -160 DEG C to -170 DEG C, deep cooling soaking time 10min-15min；Deep cooling becomes
Shape amount is 55%-70%；
A kind of aluminium-cooper-maganesium alloy of the present invention obtains the thermo-mechanical treatment process of high combination property, in the 3rd step, Ageing Treatment
It is artificial aging, aging temperature is 120 DEG C -210 DEG C, and aging time is 1h-48h；
Preferred aging temperature is 180 DEG C -200 DEG C, and aging time is 10h-20h；
A kind of aluminium-cooper-maganesium alloy of the present invention obtains the thermo-mechanical treatment process of high combination property, and the aluminium-cooper-maganesium alloy includes
Following components, constitute by mass percentage：
Cu1.5%-5.5%
Mg0.2%-2%
Balance of Al.
A kind of aluminium-cooper-maganesium alloy of the present invention obtains the thermo-mechanical treatment process of high combination property, and the aluminium-cooper-maganesium alloy includes
Following components, constitute by mass percentage：
Cu2%-5%
Mg0.5%-1.8%
Balance of Al.
A kind of aluminium-cooper-maganesium alloy of the present invention obtains the thermo-mechanical treatment process of high combination property, and the aluminium-cooper-maganesium alloy includes
Following components, constitute by mass percentage：Al-4.45Cu-1.5Mg.
In the present invention, the solid solution hot rolling continuous processing refers to after solid solubility temperature insulation, to be cooled to required temperature and enter
The treatment of row hot rolling deformation, carries out water quenching immediately after；Sample its state after hot rolling is carried out is set to be supersaturated state, while subsequently
Solid solution can be no longer carried out before Ageing Treatment.Solid solution holding temperature in the process is 480 DEG C to 510 DEG C, solid solution insulation
Time is 30min to 3h, and start rolling temperature needed for hot rolling deformation treatment is 450 DEG C to 480 DEG C, and finishing temperature is 440 DEG C to 470
DEG C, the deflection of hot rolling deformation treatment is 20% to 80%.Deep cooling deformation after solid solution hot rolling continuous processing refers to by aluminium
Alloy sample is cooled down with liquid nitrogen, specimen temperature is reduced to -190 DEG C to -120 DEG C, and rolling deformation, deep cooling are then carried out again
The deflection of deformation is 40% to 80%.Ageing Treatment is carried out again by the sample after deep cooling deformation, and the Ageing Treatment is behaved
Man-hour imitates, and temperature is 120 DEG C to 210 DEG C, and the time is 1h to 48h.
Compared to traditional handicraft, it is an advantage of the invention that：
1st, the present invention organically combines the independent process of the solid solution in traditional handicraft, hot rolling treatment two, using solid solution heat
Roll continuous processing, i.e., sample is incubated under solid solubility temperature, its abundant solid solution is reached supersaturated state, then furnace cooling or
Come out of the stove and be air cooled to hot-rolled temperature and carry out hot rolling, quench at once afterwards.Wherein 440 DEG C to 480 DEG C of hot-rolled temperature is higher than in the present invention
The conventional hot-rolled temperature (400 DEG C to 440 DEG C) of aluminum bronze magnadure；Above-mentioned process combination of the invention, tries aluminium-cooper-maganesium alloy
Sample is by still keeping hypersaturated state after hot rolling treatment, it is suppressed that the precipitation of solute atoms, it is to avoid in traditional handicraft
Secondary Solid Solution Treatment, is simplified technique more continuous, flow, the shape of the aluminum alloy specimen particularly after by hot rolling
State is supersaturated state, suppresses solute atoms and separates out, and is that follow-up deep cooling and timeliness intensive treatment have prepared good matrix.
2nd, the present invention does not carry out Secondary Solid Solution Treatment, only can enter Mobile state again during deformation in solid solution hot rolling continuous processing
Crystallization and dynamic recovery, compared to conventional heat engines tool treatment carry out Secondary Solid Solution Treatment when can recrystallize, it is of the invention most
Finished product recrystal grain ratio is relatively low.Aluminium alloy is general to carry out Recrystallization nucleation by way of subgrain merges, due to merging
More dislocations are absorbed on the crystal boundary of the larger subgrain for being formed afterwards, is high-angle boundary so as to gradate, therefore aluminum bronze magnesium
The usual high-angle boundary ratio of recrystal grain of the alloy after the secondary solution treatment processed through conventional heat engines tool is higher.Due to tying again
Jingjing grain high-angle boundary ratio is higher, in ag(e)ing process, the precipitated phase of large-size is easily separated out on high-angle boundary,
This can reduce the grain-boundary strength of aluminium-cooper-maganesium alloy, cause aluminium-cooper-maganesium alloy that grain boundary fracture easily occurs under plus load state,
Enable aluminum alloy to toughness reduction.The aluminium-cooper-maganesium alloy that the technology of the present invention is obtained, because recrystal grain ratio is relatively low, therefore its big angle
Degree crystal boundary ratio is low compared with the aluminium-cooper-maganesium alloy obtained by the treatment of conventional heat engines tool, thus reduces brilliant in wide-angle in ag(e)ing process
The possibility of large scale phase is separated out in boundary, the big of grain boundaries is reduced compared to the aluminium-cooper-maganesium alloy after being processed through conventional heat engines tool
Size phase, it is to avoid the reduction of grain-boundary strength, suffered resistance is bigger when making crackle along brilliant extension, and traumatic resistance can be more traditional
Aluminium alloy under thermo-mechanical processi is significantly improved.
3rd, the present invention is by by solid solution, two kinds of combinations of technique of hot rolling, on the one hand, remains the deformation produced during hot rolling and knits
Structure, efficient hardening aluminium alloy；On the other hand, the dislocation produced during hot rolling is remained, larger dislocation density can be retained, and rear
Dislocation substructure is formed in continuous Ageing Treatment, dislocation substructure makes dislocation motion hindered when aluminium alloy is acted on by external force,
It is obviously improved the Strengthening and Toughening performance of aluminium-cooper-maganesium alloy；Traditional handicraft is avoided when Secondary Solid Solution Treatment is carried out, makes deformation texture
Reply is changed into recrystallization texture, and dislocation occurs to reply and disappear completely during solid solution, in causing aluminium-cooper-maganesium alloy matrix
Reinforcing texture and dislocation substructure quantity reduce, aluminium-cooper-maganesium alloy obdurability is difficult to the defect of matched well.
4th, the present invention is by by solid solution, two kinds of combinations of technique of hot rolling, helping, in dynamic recrystallization, to make crystal grain thin
Change, the precipitation for introducing the defects such as a large amount of dislocations to promote nanoscale precipitated phase during timeliness is deformed by follow-up deep cooling, make various strong
Change mechanism is acted on simultaneously, changes the single strengthening mechanism effect of conventional thermo-mechanical processi, is beneficial to and preferably improve the conjunction of aluminum bronze magnesium
Golden combination property, makes plasticity and toughness and intensity while being improved.The yield strength of the aluminium-cooper-maganesium alloy of present invention treatment reaches
More than 420Mpa, tensile strength reaches more than 560Mpa, and elongation percentage reaches more than 11%, and fracture toughness reaches 65MPam1/2With
On；Compared with traditional T3 is processed, in the case where good elongation percentage is kept, yield strength improves 27%；Tensile strength is carried
It is high by 22%；Fracture toughness improves 9.8%；
5th, with the method for the invention, regulation and control hot rolling continuous processing, deep cooling deformation, the technological parameter of artificial aging treatment
Ultra-fine Grained can be obtained, makes grain boundary density increase to improve the plus load required for forming dislocation pile up, while increasing crystal boundary face
Product can suppress the movement and extension of crackle, thus can improve aluminium-cooper-maganesium alloy traumatic resistance energy.
Brief description of the drawings
Accompanying drawing 1 is present invention process flow chart.
In figure：
TS--- --- --- ----solid solution holding temperature；
TC--- --- --- ----hot rolling deformation treatment temperature；
Ta--- --- --- ----aging temp.
Specific embodiment：
With reference to embodiment and traditional handicraft comparative example, the invention will be further described.
Embodiment 1：
It is the aluminium-cooper-maganesium alloy cold-reduced sheet of 12mm to use sample thickness, and its alloying component is Al-4.45Cu-1.5Mg-0.54Mn
(mass fraction %).First, sample is put into the air furnace that temperature is 493 DEG C and is incubated 1h；Then by sample from air furnace
Taking out and being cooled to 470 DEG C of start rolling temperature in atmosphere carries out hot rolling deformation treatment, and finishing temperature is 450 DEG C, and deflection is
30%；Water quenching is carried out after hot rolling at once；Deep cooling deformation process is carried out again by the sample of water quenching, and sample soaks in liquid nitrogen
15min makes its temperature be rolled when being down to -185 DEG C, and deflection is 80%；It is artificial by being carried out again after deep cooling deformation process
Timeliness, aging temp is 120 DEG C, and the time is 45h.The yield strength of aluminium-cooper-maganesium alloy, tensile strength after the present embodiment treatment,
Elongation percentage, fracture toughness (Kq) parameter is shown in Table 1.
Embodiment 2：
It is the aluminium-cooper-maganesium alloy cold-reduced sheet of 12mm to use sample thickness, and its alloying component is Al-4.45Cu-1.5Mg-0.54Mn
(mass fraction %).First, sample is put into the air furnace that temperature is 485 DEG C and is incubated 1h；Then by sample from air furnace
Taking out and being cooled to 455 DEG C of start rolling temperature in atmosphere carries out hot rolling deformation treatment, and finishing temperature is 440 DEG C, and deflection is
50%；Water quenching is carried out after hot rolling at once；Deep cooling deformation process is carried out again by the sample of water quenching, and sample soaks in liquid nitrogen
10min makes its temperature be rolled when being down to -155 DEG C, and deflection is 60%；Carried out again after being processed by room temperature rolling artificial
Timeliness, aging temp is 170 DEG C, and the time is 16h.The yield strength of aluminium-cooper-maganesium alloy, tensile strength after the present embodiment treatment,
Elongation percentage, fracture toughness (Kq) parameter is shown in Table 1.
Embodiment 3：
It is the aluminium-cooper-maganesium alloy cold-reduced sheet of 12mm to use sample thickness, and its alloying component is Al-4.45Cu-1.5Mg-0.54Mn
(mass fraction %).First, sample is put into the air furnace that temperature is 500 DEG C and is incubated 1h；Then by sample from air furnace
Taking out and being cooled to 480 DEG C of start rolling temperature in atmosphere carries out hot rolling deformation treatment, and finishing temperature is 465 DEG C, and deflection is
70%；Water quenching is carried out after hot rolling at once；Deep cooling deformation process is carried out again by the sample of water quenching, and sample soaks in liquid nitrogen
5min makes its temperature be rolled when being down to -120 DEG C, and deflection is 40%；Carried out again after being processed by room temperature rolling artificial
Timeliness, aging temp is 200 DEG C, and the time is 6h.The yield strength of aluminium-cooper-maganesium alloy, tensile strength after the present embodiment treatment,
Elongation percentage, fracture toughness (Kq) parameter is shown in Table 1.
Comparative example 1：
It is the aluminium-cooper-maganesium alloy cold-reduced sheet of 12mm to use sample thickness, and its alloying component is Al-4.45Cu-1.5Mg-0.54Mn
(mass fraction %).Solution treatment is carried out first, sample is put into the air furnace that temperature is 490 DEG C and is incubated 1h, then carry out
Quenching；20min is incubated in the air furnace that temperature is 430 DEG C afterwards, hot rolling deformation is then carried out, deflection is 50%, deformed
Quenched at once after completion；Then room temperature rolling is carried out, deflection is 60%；Carried out at solid solution again after room temperature rolling
Reason, sample is put into the air furnace that temperature is 490 DEG C and is incubated 1h, is then quenched；T3 system treatment is finally carried out, it is advanced
Row deflection is 6% room temperature rolling treatment, then carries out natrual ageing, and the time is 100h.Aluminum bronze magnesium after the treatment of this comparative example
The yield strength of alloy, tensile strength, elongation percentage, fracture toughness (Kq) parameter is shown in Table 1.
Comparative example 2：
It is the aluminium-cooper-maganesium alloy cold-reduced sheet of 12mm to use sample thickness, and its alloying component is Al-4.45Cu-1.5Mg-0.54Mn
(mass fraction %).Solution treatment is carried out first, sample is put into the air furnace that temperature is 490 DEG C and is incubated 1h, then carry out
Quenching；20min is incubated in the air furnace that temperature is 430 DEG C afterwards, hot rolling deformation is then carried out, deflection is 50%, deformed
Quenched at once after completion；Then room temperature rolling is carried out, deflection is 60%；Carried out at solid solution again after room temperature rolling
Reason, sample is put into the air furnace that temperature is 490 DEG C and is incubated 1h, is then quenched；Finally carry out T6 peak timeliness, timeliness temperature
It is 120 DEG C to spend, and the time is 24h.Yield strength, tensile strength, elongation percentage, the fracture of the aluminium-cooper-maganesium alloy after the treatment of this comparative example
Toughness (Kq) parameter is shown in Table 1.
Comparative example 3：
It is the aluminium-cooper-maganesium alloy cold-reduced sheet of 12mm to use sample thickness, and its alloying component is Al-4.45Cu-1.5Mg-0.54Mn
(mass fraction %).Solution treatment is carried out first, sample is put into the air furnace that temperature is 490 DEG C and is incubated 1h, then carry out
Quenching；20min is incubated in the air furnace that temperature is 430 DEG C afterwards, hot rolling deformation is then carried out, deflection is 50%, deformed
Quenched at once after completion；Then room temperature rolling is carried out, deflection is 60%；Carried out at solid solution again after room temperature rolling
Reason, sample is put into the air furnace that temperature is 490 DEG C and is incubated 1h, is then quenched；T8 system treatment is finally carried out, first will
It is the treatment of 6% room temperature rolling that sample carries out deflection, then it is 190 DEG C to enter trip temperature, and the time is the Ageing Treatment of 12h.This contrast
Yield strength, tensile strength, elongation percentage, the fracture toughness (K of the aluminium-cooper-maganesium alloy after example treatmentq) parameter is shown in Table 1.
Table 1：
| Embodiment | Yield strength (MPa) | Tensile strength (MPa) | Elongation percentage (%) | |
| 1 | 421.6 | 560.4 | 13.4 | 72.91 |
| 2 | 433.5 | 571.8 | 12.2 | 70.26 |
| 3 | 450.1 | 568.5 | 11.2 | 67.82 |
| Comparative example | Yield strength (MPa) | Tensile strength (MPa) | Elongation percentage (%) | |
| 1 | 354.2 | 467.2 | 16.8 | 66.36 |
| 2 | 375.3 | 495.6 | 10.7 | 55.06 |
| 3 | 481.2 | 508.0 | 4.8 | 40.83 |
By the comparing of above example and comparative example performance：The aluminum bronze magnesium for obtaining is processed through present invention process to close
Gold, its tensile strength is obviously improved with yield strength compared with conventional heat engines tool handling process, and its lifting amplitude reaches 20%
More than, and preferable elongation percentage maintaining, toughness there has also been obvious raising in addition, realize aluminium alloy plasticity and toughness and intensity
Take into account, and flow process is more simplified effectively than ever, is more convenient for improving aluminium alloy combination property.
Claims (10)
1. a kind of aluminium-cooper-maganesium alloy obtains the thermo-mechanical treatment process of high combination property, is to be heated to admittedly aluminium-cooper-maganesium alloy sample
After solubility temperature insulation, furnace cooling or come out of the stove and be air cooled to rolling temperature and carry out hot rolling, water quenching after hot rolling then carries out deep cooling deformation
Treatment, Ageing Treatment is carried out after deep cooling deformation.
2. a kind of aluminium-cooper-maganesium alloy according to claim 1 obtains the thermo-mechanical treatment process of high combination property, including under
State step：
The first step：Solid solution hot rolling continuous processing
By aluminium-cooper-maganesium alloy sample after hot-rolled temperature above solid solution insulation, furnace cooling or come out of the stove and be air cooled to hot-rolled temperature and carry out
Hot rolling deformation treatment, water quenching after hot rolling deformation controls finishing temperature >=440 DEG C；
Second step：Deep cooling deformation process
Aluminium-cooper-maganesium alloy sample obtained by the first step is carried out into deep cooling deformation process；Deep cooling deformation process temperature is less than -120 DEG C,
Deep cooling deflection >=40%；
3rd step：Ageing Treatment
Ageing Treatment will be carried out by the sample after deep cooling deformation process.
3. a kind of aluminium-cooper-maganesium alloy according to claim 2 obtains the thermo-mechanical treatment process of high combination property, its feature
It is：
Solid solution holding temperature is 480 DEG C -510 DEG C, solid solution soaking time 30min-3h.
4. a kind of aluminium-cooper-maganesium alloy according to claim 3 obtains the thermo-mechanical treatment process of high combination property, its feature
It is：
Furnace cooling or come out of the stove and be air cooled to hot rolling start rolling temperature after solid solution insulation.
5. a kind of aluminium-cooper-maganesium alloy according to claim 2 obtains the thermo-mechanical treatment process of high combination property, its feature
It is：Hot rolling start rolling temperature is 450-480 DEG C, and finishing temperature is 440-470 DEG C.
6. a kind of aluminium-cooper-maganesium alloy according to claim 5 obtains the thermo-mechanical treatment process of high combination property, its feature
It is：Hot rolling deformation amount is 20%-80%.
7. a kind of aluminium-cooper-maganesium alloy thermo-mechanical treatment process according to claim 2, it is characterised in that：Deep cooling deformation process
Temperature is -190 DEG C -120 DEG C, deep cooling soaking time≤15min.
8. a kind of aluminium-cooper-maganesium alloy according to claim 7 obtains the thermo-mechanical treatment process of high combination property, its feature
It is：The deflection of deep cooling deformation is 40%-80%.
9. a kind of aluminium-cooper-maganesium alloy according to claim 2 obtains the thermo-mechanical treatment process of high combination property, its feature
It is：Ageing Treatment is artificial aging, and aging temperature is 120 DEG C -210 DEG C, and aging time is 1h-48h.
10. a kind of aluminium-cooper-maganesium alloy according to claim 1-9 any one obtains the thermo-mechanical processi of high combination property
Technique, the aluminium-cooper-maganesium alloy includes following components, constitutes by mass percentage：
Cu1.5%-5.5%
Mg0.2%-2%
Balance of Al.
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| CN108998711A (en) * | 2018-07-12 | 2018-12-14 | 上海交通大学 | A kind of high tough Mg-Li wrought alloy and preparation method thereof |
| CN111206194A (en) * | 2020-02-24 | 2020-05-29 | 湖南人文科技学院 | Thermal mechanical treatment process for preparing aluminum alloy with high comprehensive performance |
| CN111389918A (en) * | 2020-03-27 | 2020-07-10 | 营口理工学院 | Rolling processing method of magnesium alloy plate |
| CN112646998A (en) * | 2020-12-16 | 2021-04-13 | 中国航发北京航空材料研究院 | Aluminum alloy for aircraft wall plate and preparation method of plate |
| CN112680587A (en) * | 2020-11-12 | 2021-04-20 | 淮阴工学院 | Method for improving hardness of aluminum-magnesium alloy welding wire |
| CN114086039A (en) * | 2020-08-24 | 2022-02-25 | 南京理工大学 | Preparation method of high-strength high-toughness nanosheet structure aluminum magnesium alloy |
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| CN114086039A (en) * | 2020-08-24 | 2022-02-25 | 南京理工大学 | Preparation method of high-strength high-toughness nanosheet structure aluminum magnesium alloy |
| CN114086039B (en) * | 2020-08-24 | 2022-05-20 | 南京理工大学 | Preparation method of high-strength high-toughness nanosheet layer structure aluminum magnesium alloy |
| CN112680587A (en) * | 2020-11-12 | 2021-04-20 | 淮阴工学院 | Method for improving hardness of aluminum-magnesium alloy welding wire |
| CN112646998A (en) * | 2020-12-16 | 2021-04-13 | 中国航发北京航空材料研究院 | Aluminum alloy for aircraft wall plate and preparation method of plate |
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