CN105568090B - Anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy and its tubing manufacture method - Google Patents
Anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy and its tubing manufacture method Download PDFInfo
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- CN105568090B CN105568090B CN201511018640.6A CN201511018640A CN105568090B CN 105568090 B CN105568090 B CN 105568090B CN 201511018640 A CN201511018640 A CN 201511018640A CN 105568090 B CN105568090 B CN 105568090B
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- 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
- C22C21/10—Alloys based on aluminium with zinc 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
- 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
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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
- C22F1/053—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 zinc as the next major constituent
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Abstract
The invention discloses a kind of anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy and its tubing manufacture method, aluminium alloy by weight percentage, including Zn：6.90~7.49%, Mg：2.10~2.30%, Cu：0.05~0.10%, Mn：0.10~0.30%, Cr：0.10~0.30%, Ti：0.01~0.02%, Zr：0.15~0.2%, Sc：0.05~0.1, remaining is Al and inevitable impurity；Its strength character is substantially increased with high content Zn and low content Mg collocation；Appropriate Mn, Cr improves its intensity and repeats loading drag, and ensure that its good plasticity and toughness；Trace Ti, Zr, Sc as supplement and perfect, crystal grain thinning and precipitation strength ensure that its structure stabilization and performance it is reliable；Its overall specific strength is high, and good corrosion resistance, cost is cheap, and processability is good, and lumber recovery is high.
Description
Technical field
The present invention relates to petroleum pipeline manufacturing technology field, and in particular to a kind of anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium
Alloy and its tubing manufacture method.
Background technology
With the development of petroleum industry, to the production with performances such as high specific strength, good, the corrosion-resistant, endurances of plasticity and toughness
The demand of tubing string is more and more stronger.Aluminium alloy oil pipe possesses above-mentioned characteristic and with its excellent cost performance, and it is studied by the world
The extensive attention of various countries.
The corrosion resistant alloy oil pipe such as Ni-based conjunction of nickel-base alloy oil pipe, iron generally used as petroleum resources flow string at present
Polishes pipe, two phase stainless steel oil pipe, martensitic stain less steel oil pipe etc. are more to be set using precious metal element high-alloyings such as Ni, Mo, Cr
Meter, cost is higher, and specific strength is low, and complex process, difficulty of processing is big, and processing characteristics requires higher, and lumber recovery is low, delivery cycle
Long, completion tubular column sulfurated hydrogen stress etching-resisting performance is low.
The aluminium alloy oil pipe produced using aluminium alloy pipe, can simplify production technology, reduce difficulty of processing, significantly improve pipe
Material lumber recovery, production cost and delivery cycle is greatly lowered.In addition, completion tubular column weight can significantly be mitigated using aluminium alloy oil pipe
Measure, be greatly lowered the stress concentration of different depth completion tubular column, improve tubing string service life and security.
But deepening continuously with Oil And Gas Exploration And Development, the corrosive environment of flow string is severe all the more, particularly aluminium
Alloy oil pipe needs to face higher Cl-Corrosive environment, traditional aluminium alloy oil pipe material are difficult while intensity requirement is met
To meet resistance to Cl-Corrosive nature requirement.Exploitation has high intensity and resistance to Cl-The aluminium alloy oil pipe aluminium alloy of corrosion and its manufacture
Method has important scientific value and application prospect.
The content of the invention
For problems of the prior art, a kind of technique of present invention offer is simple, and cost is cheap, and specific strength is high, resistance to
The good aluminium alloy oil pipe aluminium alloy of chloride ion corrosion performance and its tubing manufacture method.
The present invention is to be achieved through the following technical solutions：
A kind of anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy, by weight percentage, including Zn：6.90~
7.49%, Mg：2.10~2.30%, Cu：0.05~0.10%, Mn：0.10~0.30%, Cr：0.10~0.30%, Ti：
0.01~0.02%, Zr：0.15~0.2%, Sc：0.05~0.1, remaining is Al and impurity.
Preferably, Si contents are not more than aluminium alloy gross weight no more than 0.10%, the Fe contents of aluminium alloy gross weight in impurity
The 0.10% of amount.
A kind of method for manufacturing anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy pipe, is comprised the technical steps that：
1) by weight percentage, by Zn：6.90~7.49%, Mg：2.10~2.30%, Cu：0.05~0.10%,
Mn：0.10~0.30%, Cr：0.10~0.30%, Ti：0.01~0.02%, Zr：0.15~0.2%, Sc：0.05~0.1,
Surplus is Al and impurity, smelt and obtained hollow ingot blank is cast after external refining；
2) hollow ingot blank is heated and carries out two-stage Homogenization Treatments；
3) by the hollow ingot blank after two-stage Homogenization Treatments at high temperature through being extruded；
4) pipe after extruding is subjected to double_stage guide processing and quenches cooling；
5) pre-tension deformation of the pipe progress tubing after cooling down will be quenched；
6) tubing after pre-tension deformation is subjected to artificial aging processing, obtains anti-chlorine ion corrosion type aluminium alloy oil pipe use
Aluminium alloy pipe.
Preferably, by weight percentage, according to impurity in Si no more than aluminium alloy gross weight 0.10% and Fe it is little
In the requirement of aluminium alloy gross weight 0.10%, selection stock is carried out by purity to Al.
Preferably, during step 2) the two-stage Homogenization Treatments, first ingot blank is heated to 380~385 DEG C and is incubated 12h enter
The row first order homogenizes；It is then heated to 465~470 DEG C and is incubated 24h and carries out second level homogenization.
Preferably, step 3) is described when being extruded, and the temperature of ingot blank is 415~425 DEG C, and extrusion ratio is more than 18, extruding
Speed is 3~5mm/s.
Preferably, when the step 4) double_stage guide is handled, 445~450 DEG C is first to heat to and is incubated the 2h progress first order
Solution treatment；Then 460~470 DEG C are again heated to and is incubated 1h and carries out second level solution treatment.
Preferably, the pre-tension deformation amount of the step 5) pre-tension deformation is 2.0~3.0%.
Preferably, during the processing of the step 6) artificial aging, be heated to 110~120 DEG C and be incubated 72h carry out low temperature it is long when
Between artificial aging.
Compared with prior art, the present invention has technique effect beneficial below：
Aluminium alloy of the present invention, its strength character is substantially increased with high content Zn and low content Mg collocation；It is suitable
Mn, Cr of amount improve its intensity and repeat loading drag, and ensure that its good plasticity and toughness；Trace Ti, Zr, Sc are as benefit
Fill and perfect, crystal grain thinning and precipitation strength ensure that its structure stabilization and performance it is reliable；Its overall specific strength is high, corrosion resistant
Corrosion is good, and cost is cheap, and processability is good, and lumber recovery is high.
Further, by controlling inevitable Fe and Si content, the generation of breach effect is greatly avoided.
Manufacture method of the present invention, by two-stage Homogenization Treatments, pre-tension deformation and low temperature it is artificial for a long time when
Imitate the handling process that is combined, obtain transgranular ultra-fine η ' mutually with the interrupted η phases of crystal boundary based on tissue；It is inclined that different ingot castings can be eliminated
Analysis, effectively prevents ingot casting from ftractureing；Dislocation density can be increased, transgranular reinforcing precipitated phase nucleation rate is improved, improve intensity；But also
Crystal boundary η distributed mutually situations can be improved, reduce the transgranular difference in Electrode Potential between crystal boundary, improve anti-chlorine ion corrosion performance.
So as to ensure that aluminium alloy oil pipe tubing has excellent mechanical property and decay resistance.
Further, in described aluminium alloy and tubing, carried out most by rational composition and deformation Technology for Heating Processing
The tissue of finished product and quality control, the effect after the effect and processing of each composition are as follows.
Zinc and magnesium are main intensified elements in aluminium alloy oil pipe aluminium alloy.In the case of abundant solid solution, Zn and Mg are being closed
Main hardening constituent η ' (MgZn are formed in gold2).η ' mutually the reduction of solubility with temperature in the alloy and drastically decline, η ' mutually exists
Solubility under eutectic temperature drops to 4~5%, has very strong ageing strengthening effect at room temperature up to 28%.In solid solution pole
In the range of limit, intensity can be greatly improved by improving Zn, Mg content, but the fracture toughness of alloy and anti-H 2 S stress can be caused rotten
Corrosion can reduce.For a kind of anti-chlorine ion corrosion type aluminium alloy oil pipe of the present invention 6.90~7.49% are used with aluminium alloy
Zn contents and the design of 2.10~2.30% Mg contents.
Copper is important alloying element in aluminium alloy oil pipe aluminium alloy.Cu can form hardening constituent S-phase with Al and Mg
(Al2CuMg additional reinforcing effect) is produced to aluminium alloy, the intensity of aluminium alloy pipe is improved and repeats loading drag.Cu can be carried
The spread of high precipitated phase, improve intergranular structure, if grain boundary precipitate, crystal boundary are without Precipitation band.But Cu addition has generation
Intercrystalline corrosion and the tendency of spot corrosion.Designed for the anti-chlorine ion corrosion type aluminium alloy oil pipe of the present invention with aluminium alloy Cu contents
In 0.05~0.10% scope.
Manganese is intensified element economic in aluminium alloy oil pipe aluminium alloy.Mn can crystal grain thinning, hinder matrix grain grow up
And recrystallization, in the case where not reducing aluminium alloy plasticity and toughness, improve aluminium alloy pipe intensity.But excessive Mn can be reduced
The solubility of the solute elements such as Zn, Mg in the base is so as to reducing obdurability.Therefore, the Mn contents that the present invention chooses：0.10~
0.30%.
Chromium is to compensate the intensified element for causing plasticity and toughness to lose because intensity raises in aluminium alloy oil pipe aluminium alloy.Cr members
Element reduces stress corrosion opening cracking maleate sensitivity while the plasticity and toughness of tubing are improved, but excessive Cr will reduce aluminium alloy pipe
Quenching degree.Therefore, the Cr contents that the present invention chooses：0.10~0.30%.
Titanium, zirconium, scandium are crystal grain thinning in aluminium alloy oil pipe aluminium alloy, the element for suppressing recrystallization.Ti, Zr, Sc and Al
With reference to forming Al respectively3Ti、Al3Zr、Al3Sc intermetallic compounds, this intermetallic compound have two kinds of structures and form：From
The Al directly separated out in melt3Ti、Al3Zr、Al3Sc is tetragonal, can notable refining alloy as-cast grain；Another kind is
The spheroidal particle separated out during ingot homogenization, with matrix coherence, there is the work recrystallized in strong inhibition hot procedure
With.In addition, it is notable to improve alloy corrosion resistance effect for improving alloy structure uniformity by micro Sc.Considering cost and
Above-mentioned trace element effect, the Ti contents that the present invention chooses：0.01~0.02%, Zr contents：0.15~0.2%, Sc contents：
0.05~0.1%.
Iron and silicon are the objectionable impurities in aluminium alloy oil pipe aluminium alloy, be in the alloy it is inevitable, essentially from
The instrument and equipment used in raw material, melting and casting.Fe and Si is in the alloy mainly with hard and crisp FeAl3With it is free
Si forms are present, including with thick insoluble or indissoluble Mg2Si、Al6Fe、AlFeSi、Al7Cu2The brittlement phases such as Fe and eutectic
The form of compound is present.Phase containing Fe, Si is difficult dissolving at room temperature, plays breach effect, easily becomes formation of crack and make material
Material is broken.To significantly improve the corrosion resistance of alloy of the present invention, it is necessary to strictly control Fe, Si content.Therefore, controlled in the present invention
Fe contents≤0.10%, Si content≤0.10% processed.
Brief description of the drawings
Fig. 1 be present example 1 artificial aging after aluminium alloy pipe transmission electron microscope organization chart.
Fig. 2 be present example 2 artificial aging after aluminium alloy pipe transmission electron microscope organization chart.
Embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Embodiment 1
A kind of anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy of the present invention, its chemical composition are wrapped by weight percentage
Include：7.49% Zn, 2.30% Mg, 0.05% Cu, 0.26% Mn, 0.10% Cr, 0.01% Ti, 0.2%
Zr, 0.05% Sc, remaining composition is Al and inevitable impurity, wherein inevitable impurity includes accounting for aluminium alloy gross weight
The Fe, 0.06% Si of amount 0.09%.
Above-mentioned anti-chlorine ion corrosion type aluminium alloy oil pipe is that above-mentioned raw materials are carried out into smelting with the manufacture method of aluminium alloy pipe
Refine and obtained hollow ingot blank is cast after external refining, hollow ingot blank is separately heated to 385 DEG C, 465 DEG C of progress pair in heating furnace
Level Homogenization Treatments, corresponding soaking time is 12h, 24h；Hollow ingot blank extrusion temperature is 425 DEG C, extrusion ratio 18.3, extruding speed
Spend for 3mm/s；Double_stage guide treatment temperature is respectively 450 DEG C, 470 DEG C, and corresponding soaking time is 2h, 1h；It is quickly quenching into 20
℃；Pre-tension deformation amount is 2%；Artificial aging temperature is 110 DEG C, soaking time 72h.
Through the above method handle aluminium alloy pipe mechanical property for yield strength 405MPa, tensile strength 465MPa,
Elongation percentage 9.0%, the maximum corrosion rate 0.008g/ (m in 3.5% sodium chloride solution2h).Its performance indications fully meets ISO
Requirement of the standard to the 4th group of material in aluminium alloy oil pipe aluminium alloy pipe.The example metallographic structure is transgranular η ' phases and crystal boundary
η phases, reference picture 1.
Embodiment 2
A kind of anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy of the present invention, its chemical composition are wrapped by weight percentage
Include：6.95% Zn, 2.15% Mg, 0.09% Cu, 0.30% Mn, 0.20% Cr, 0.02% Ti, 0.15%
Zr, 0.08% Sc, remaining composition is Al and inevitable impurity, wherein inevitable impurity includes accounting for aluminium alloy gross weight
The Fe and 0.06% of amount 0.08% Si.
Above-mentioned anti-chlorine ion corrosion type aluminium alloy oil pipe is that above-mentioned raw materials are carried out into smelting with the manufacture method of aluminium alloy pipe
Refine and obtained hollow ingot blank is cast after external refining, hollow ingot blank is separately heated to 380 DEG C, 465 DEG C of progress pair in heating furnace
Level Homogenization Treatments, corresponding soaking time is 12h, 24h；Hollow ingot blank extrusion temperature is 420 DEG C, extrusion ratio 18.3, extruding speed
Spend for 4mm/s；Double_stage guide treatment temperature is respectively 445 DEG C, 460 DEG C, and corresponding soaking time is 2h, 1h；It is quickly quenching into 20
℃；Pre-tension deformation amount is 3%；Artificial aging temperature is 120 DEG C, and corresponding soaking time is 72h.
Through the above method handle aluminium alloy pipe mechanical property for yield strength 365MPa, tensile strength 420MPa,
Elongation percentage 10.5%, the maximum corrosion rate 0.006g/ (m in 3.5% sodium chloride solution2h).Its performance indications is fully met
Requirement of the iso standard to the 4th group of material in aluminium alloy oil pipe aluminium alloy pipe.The example metallographic structure is transgranular ultra-fine η '
Phase and crystal boundary η phases, reference picture 2.
Embodiment 3
A kind of anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy of the present invention, its chemical composition are wrapped by weight percentage
Include：6.9% Zn, 2.10% Mg, 0.10% Cu, 0.10% Mn, 0.30% Cr, 0.02% Ti, 0.17%
Zr, 0.10% Sc, remaining composition is Al and inevitable impurity, wherein inevitable impurity includes accounting for aluminium alloy gross weight
The Fe and 0.08% of amount 0.07% Si.
Above-mentioned anti-chlorine ion corrosion type aluminium alloy oil pipe is that above-mentioned raw materials are carried out into smelting with the manufacture method of aluminium alloy pipe
Refine and obtained hollow ingot blank is cast after external refining, hollow ingot blank is separately heated to 380 DEG C, 470 DEG C of progress pair in heating furnace
Level Homogenization Treatments, corresponding soaking time is 12h, 24h；Hollow ingot blank extrusion temperature is 415 DEG C, extrusion ratio 18.5, extruding speed
Spend for 5mm/s；Double_stage guide treatment temperature is respectively 447 DEG C, 465 DEG C, and corresponding soaking time is 2h, 1h；It is quickly quenching into 20
℃；Pre-tension deformation amount is 2.5%；Artificial aging temperature is 115 DEG C, and corresponding soaking time is 72h.
Through the above method handle aluminium alloy pipe mechanical property for yield strength 365MPa, tensile strength 420MPa,
Elongation percentage 10.5%, the maximum corrosion rate 0.006g/ (m in 3.5% sodium chloride solution2h).Its performance indications is fully met
Requirement of the iso standard to the 4th group of material in aluminium alloy oil pipe aluminium alloy pipe.The example metallographic structure is transgranular ultra-fine η '
Phase and crystal boundary η phases.
The good mechanical performance of the aluminium alloy pipe handled through the above method, its performance indications fully meet iso standard pair
The requirement of first group of material in aluminium alloy oil pipe tubing.The example metallographic structure be transgranular ultra-fine η ' mutually with the interrupted η phases of crystal boundary.
Compared with conventional corrosion resistant alloy oil pipe is with tubing composition, the present invention on alloy formula using aluminium be matrix with compared with
It is high Zn contents (6.90~7.49%), certain Mg contents (2.10~2.30%), relatively low Cu (0.05~0.10%), suitable
When Mn (0.10~0.30%) and Cr (0.10~0.30%), micro Ti (0.01~0.02%), Zr (0.15~0.2%)
With Sc (0.05~0.1%), be added without the elements such as Mo, Ni, composition design is simple, cost is relatively low, takes full advantage of Zn, Mg element
Precipitation enhancement and Mn, Cr element solution strengthening effect；Above components matching thermomechanical treatment process, is not only increased
The combination property of product, and flexible extruding production technology can be taken, improve productivity ratio.In addition, possess compared with low content of Cu
With reference to the product that thermomechanical treatment and the long aging technique of low temperature are produced while higher intensity is kept, with well resistance to
Chloride ion corrosion performance, enabling aluminum alloy to oil pipe tubing has good crack arrest ability.The tubing produced have transgranular η ' mutually and
Crystal boundary η phase constitutions, requirements of the ISO13085 to the 4th group of material in aluminium alloy oil pipe tubing is fully met, and production can be reduced
Manufacturing cost and add production manufacturability.
The performance for the aluminium alloy oil pipe tubing produced according to above-mentioned technical proposal reaches claimed below：
(1), tensile strength, target：Rp0.2=365~405MPa, Rm≧420MPa。
(2), elongation percentage, target：δ5≧9.0；
(3), resisting corrosion of chlorine ion, target：Maximum corrosion rate is less than 0.02g/ (m in 3.5% sodium chloride solution2h)。
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover
Among scope of the presently claimed invention.
Claims (3)
1. manufacture the method for anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy pipe, it is characterised in that including following technique
Step：
1) by weight percentage, by Zn：6.90~7.49%, Mg：2.10~2.30%, Cu：0.05~0.10%, Mn：
0.10~0.30%, Cr：0.10~0.30%, Ti：0.01~0.02%, Zr：0.15~0.2%, Sc：0.05~0.1, surplus
For Al and impurity, smelt and obtained hollow ingot blank is cast after external refining；By weight percentage, according to impurity in Si
No more than the requirement that aluminium alloy gross weight 0.10% and Fe are not more than aluminium alloy gross weight 0.10%, Al is selected by purity
Stock；
2) hollow ingot blank is heated and carries out two-stage Homogenization Treatments；First it is heated to 380~385 DEG C by ingot blank and is incubated 12h carry out
The first order homogenizes；It is then heated to 465~470 DEG C and is incubated 24h and carries out second level homogenization；
3) by the hollow ingot blank after two-stage Homogenization Treatments at high temperature through being extruded；During extruding the temperature of ingot blank be 415~
425 DEG C, extrusion ratio is more than 18, and extrusion speed is 3~5mm/s；
4) pipe after extruding is subjected to double_stage guide processing and quenches cooling；During double_stage guide processing, 445 are first to heat to~
450 DEG C and be incubated 2h carry out first order solution treatment；Then 460~470 DEG C are again heated to and is incubated 1h and carries out second level solid solution
Processing；
5) pre-tension deformation of the pipe progress tubing after cooling down will be quenched；
6) tubing after pre-tension deformation is subjected to artificial aging processing, obtains anti-chlorine ion corrosion type aluminium alloy oil pipe and closed with aluminium
Golden tubing.
2. the method for manufacture anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy pipe according to claim 1, it is special
Sign is that the pre-tension deformation amount of the step 5) pre-tension deformation is 2.0~3.0%.
3. the method for manufacture anti-chlorine ion corrosion type aluminium alloy oil pipe aluminium alloy pipe according to claim 1, it is special
Sign is, during step 6) the artificial aging processing, be heated to 110~120 DEG C and be incubated 72h carry out low temperature it is artificial for a long time when
Effect.
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| CN107385292A (en) * | 2017-06-29 | 2017-11-24 | 中国石油天然气集团公司 | A kind of ultradeep well aluminium alloy casing pipe and its manufacture method |
| CN109355538B (en) * | 2018-12-05 | 2020-10-20 | 辽宁忠旺集团有限公司 | Production process of high-strength 7-series aluminum alloy pipe |
| CN109457149A (en) * | 2018-12-05 | 2019-03-12 | 天津忠旺铝业有限公司 | A kind of processing method of 7 line aluminium alloy slab |
| CN110699581B (en) * | 2019-08-20 | 2021-02-26 | 上海交通大学 | Soluble acid-resistant aluminum alloy oil pipe, preparation method thereof and aluminum alloy used by same |
| CN113046661B (en) * | 2019-12-26 | 2022-05-27 | 有研工程技术研究院有限公司 | Heat treatment method for improving structure and performance of 7xxx series aluminum alloy |
| CN112692233A (en) * | 2020-12-16 | 2021-04-23 | 重庆怡之驰机械有限公司 | Processing technology of automobile four-column engine case cover |
| CN113403511B (en) * | 2021-05-27 | 2023-04-07 | 江苏大学 | High-strength and high-toughness weldable in-situ nano reinforced rare earth aluminum alloy and preparation method thereof |
| CN114790528B (en) * | 2022-05-27 | 2023-11-28 | 广东齐力澳美高新材料股份有限公司 | AlZnMgCu alloy with low Zr, low deformation resistance and high strength |
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