CN118064814A - High-strength high-plasticity aging strengthening alloy and ultrasonic aging treatment method thereof - Google Patents
High-strength high-plasticity aging strengthening alloy and ultrasonic aging treatment method thereof Download PDFInfo
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- CN118064814A CN118064814A CN202410106807.7A CN202410106807A CN118064814A CN 118064814 A CN118064814 A CN 118064814A CN 202410106807 A CN202410106807 A CN 202410106807A CN 118064814 A CN118064814 A CN 118064814A
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- 230000032683 aging Effects 0.000 title claims abstract description 139
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 112
- 239000000956 alloy Substances 0.000 title claims abstract description 112
- 238000005728 strengthening Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000243 solution Substances 0.000 claims abstract description 18
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 230000000171 quenching effect Effects 0.000 claims abstract description 7
- 239000006104 solid solution Substances 0.000 claims abstract description 7
- 238000005097 cold rolling Methods 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 3
- 238000010622 cold drawing Methods 0.000 claims description 3
- 238000000641 cold extrusion Methods 0.000 claims description 3
- 238000010273 cold forging Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000011156 metal matrix composite Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000003483 aging Methods 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 2
- 229910001008 7075 aluminium alloy Inorganic materials 0.000 description 23
- 238000001556 precipitation Methods 0.000 description 8
- 238000004321 preservation Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses a high-strength high-plasticity aging strengthening alloy and an ultrasonic aging treatment method thereof, belonging to the technical field of alloy preparation and processing, and comprising the following steps: carrying out traditional aging treatment on the aging strengthening alloy subjected to conventional solution treatment and cold plastic deformation; carrying out secondary solid solution treatment on the aging reinforced alloy, and then quenching; performing secondary cold plastic deformation on the aging reinforced alloy; performing secondary aging treatment on the aging strengthening alloy; and carrying out ultrasonic ageing treatment on the ageing strengthening alloy, thereby obtaining the high-strength high-plasticity ageing strengthening alloy. The invention can greatly reduce the ageing treatment time of the ageing strengthening alloy, save energy, shorten the production period, reduce the production cost and obtain the ageing strengthening alloy which integrates high strength and high plasticity and has excellent comprehensive performance and is difficult to obtain by traditional ageing treatment.
Description
Technical Field
The invention belongs to the technical field of alloy preparation and processing, and particularly relates to a high-strength high-plasticity aging strengthening alloy and an ultrasonic aging treatment method thereof.
Background
The aging strengthening alloy such as partial aluminum alloy, copper alloy, magnesium alloy, titanium alloy, low carbon steel, stainless steel, high temperature alloy and the like has good comprehensive mechanical properties, and is widely applied to the fields of aerospace, high-speed trains, new energy automobiles, rail vehicles, transportation, electronic appliances, metallurgical buildings, petrochemical industry, nuclear industry, mechanical equipment and the like.
In general, after the aging strengthening alloy is subjected to conventional aging treatment, the dislocation movement resistance is increased due to precipitation of a precipitated phase, and the strength of the aging strengthening alloy is increased, but the precipitated phase is preferentially precipitated at a grain boundary, so that the precipitated phase is unevenly distributed, the precipitated phase is unevenly deformed, and stress concentration at the grain boundary is caused, so that the plasticity of the aging strengthening alloy is reduced. Aiming at the problem that the distribution of the precipitated phases of the aging-strengthened alloy is uneven after the traditional aging treatment, a large number of dislocation is introduced into the aging-strengthened alloy through cold plastic deformation to serve as uneven nucleation sites of the precipitated phases so as to promote the precipitation phases to be precipitated in a large number and dispersed evenly in the aging-strengthened alloy, but the large number of dislocation in the aging-strengthened alloy can not be eliminated after the traditional aging treatment, so that the plasticity of the aging-strengthened alloy is still lower. Along with the high-speed development of modern technology, the comprehensive performance of the time-efficiency reinforced alloy has raised requirement of integrating high strength and high plasticity. However, an aging treatment method for simultaneously improving the strength and the plasticity of the aging-reinforced alloy with high efficiency and low cost does not exist so far, and development and application of the aging-reinforced high-strength high-plasticity alloy and development of the aging-reinforced alloy manufacturing industry are greatly limited.
Therefore, a novel aging treatment method for the aging-strengthened alloy is developed, the synchronous and great improvement of the strength and the plasticity of the aging-strengthened alloy is realized in a short time and high efficiency, and the method has very important significance.
Disclosure of Invention
In order to solve the problems, the invention combines the traditional aging treatment and the ultrasonic aging treatment, and carries out ultrasonic aging treatment on the aging strengthening alloy after solution treatment and cold plastic deformation, and provides the ultrasonic aging treatment method for the high-strength high-plastic aging strengthening alloy.
According to a first aspect of the technical scheme of the invention, the invention provides a high-strength high-plasticity aging strengthening alloy ultrasonic aging treatment method, which comprises the following specific steps:
Step 1: carrying out traditional aging treatment on the aging strengthening alloy subjected to conventional solution treatment and cold plastic deformation;
Step 2: carrying out secondary solid solution treatment on the ageing strengthening alloy treated in the step 1, and then quenching;
Step 3: carrying out secondary cold plastic deformation on the ageing strengthening alloy treated in the step 2;
Step 4: performing secondary aging treatment on the aging strengthening alloy treated in the step 3;
step 5: and (3) carrying out ultrasonic aging treatment on the aging strengthening alloy treated in the step (4), thereby obtaining the high-strength high-plasticity aging strengthening alloy.
Further, in the step 1, the aging strengthening alloy is one of an aluminum alloy, a copper alloy, a magnesium alloy, a titanium alloy, a zinc alloy, steel, a high temperature alloy, a metal layered composite material, and a metal matrix composite material.
Further, in the step 1, the cold plastic deformation is at least one of cold rolling, cold extrusion, cold forging, and cold drawing.
Further, the deformation amount of the cold plastic deformation or the secondary cold plastic deformation is 20% -80%.
Further, the ultrasonic aging treatment is directly performed after the conventional aging treatment is performed on the aging strengthening alloy.
Further, the temperature of the conventional solution treatment or the secondary solution treatment is 200 to 1250 ℃.
Further, the temperature of the conventional aging treatment or the secondary aging treatment is 100-1000 ℃.
Further, in the step 5, the power of the ultrasonic wave used for the ultrasonic aging treatment is 400-10000W, preferably 400-3000W.
According to a second aspect of the technical scheme of the invention, a high-strength high-plasticity aging strengthening alloy is provided, and the high-strength high-plasticity aging strengthening alloy is prepared by adopting the ultrasonic aging treatment method according to any one of the above aspects.
The invention has the beneficial effects that:
1. The ultrasonic aging treatment method can accurately regulate and control the distribution and the size of the precipitated phases and the dislocation density of the aging-strengthened alloy, the precipitated phases are uniformly distributed and dispersed, the size is small, the micro/nano scale precipitated phases can be constructed to be uniformly separated and precipitated at intervals, the dislocation density is low, the dislocation entanglement is less, and the strength and the plasticity of the aging-strengthened alloy can be greatly and synchronously improved.
2. The ultrasonic aging treatment method can greatly reduce the aging treatment time of the aging strengthening alloy, save energy, shorten the production period of the aging strengthening alloy, reduce the production cost of the aging strengthening alloy, and simultaneously has the characteristics of short flow, high efficiency and the like.
3. The aging strengthening alloy disclosed by the invention has the excellent comprehensive properties of high strength and high plasticity which are difficult to obtain by the traditional aging treatment alloy.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are required to be used in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an ultrasonic aging treatment method for a high-strength high-plasticity aging strengthening alloy according to the technical scheme of the invention.
Fig. 2 is a graph showing the precipitation phases and dislocation conditions inside the ultrasonic aging 7075 aluminum alloy of example 1.
Fig. 3 is a graph showing the precipitation phases and dislocation conditions inside the conventional aging treatment T6 state 7075 aluminum alloy of the comparative example.
Detailed Description
The present invention is described in detail below with reference to the following examples, which are only for further illustration of the present invention, but should not be construed as limiting the scope of the present invention, and any insubstantial modifications and adjustments made to the following examples according to the technical matter of the present invention are still within the scope of the technical solutions of the present invention.
The technical scheme of the invention firstly provides a high-strength high-plasticity aging strengthening alloy ultrasonic aging treatment method, which comprises the following specific steps as shown in figure 1:
step 101: and carrying out conventional aging treatment on the aging strengthening alloy subjected to conventional solution treatment and cold plastic deformation.
In a preferred embodiment, in step 101, the age-strengthened alloy is one of an aluminum alloy, a copper alloy, a magnesium alloy, a titanium alloy, a zinc alloy, steel, a superalloy, a metal layered composite, or a metal matrix composite. In a preferred embodiment, in step 101, the cold plastic deformation is at least one of cold rolling, cold extrusion, cold forging, and cold drawing.
Step 102: and (3) carrying out secondary solid solution treatment on the ageing strengthening alloy treated in the step (101), and then quenching.
In a preferred embodiment, the temperature of the conventional solution treatment in step 101 or the secondary solution treatment in step 102 is 200-1250 ℃.
Step 103: and (3) carrying out secondary cold plastic deformation on the ageing strengthening alloy treated in the step (102).
In a preferred embodiment, the deformation amount of the cold plastic deformation in the step 101 or the secondary cold plastic deformation in the step 103 is 20% -80%.
Step 104: and (3) performing secondary aging treatment on the aging strengthening alloy treated in the step (103).
In a preferred embodiment, the temperature of the conventional ageing treatment in step 101 or the secondary ageing treatment in step 104 is 100-1000 ℃.
Step 105: and (3) carrying out ultrasonic ageing treatment on the ageing strengthening alloy treated in the step (104), thereby obtaining the high-strength high-plasticity ageing strengthening alloy.
In a preferred embodiment, the ultrasonic aging is directly performed after the conventional aging of the age-strengthened alloy.
In a preferred embodiment, in step 105, the power of the ultrasonic wave used for the ultrasonic aging treatment is 400-10000W, preferably 400-3000W.
The technical scheme of the invention also provides a high-strength high-plasticity aging strengthening alloy, which is prepared by adopting the ultrasonic aging treatment method.
Example 1:
Firstly, carrying out conventional aging treatment on 7075 aluminum alloy subjected to conventional solution treatment and cold rolling deformation; then, carrying out 475 ℃ heat preservation on the 7075 aluminum alloy for 1h of secondary solid solution treatment, and then quenching in water; then cold rolling and deforming the 7075 aluminum alloy at room temperature, wherein the rolling reduction is 54%; then carrying out heat preservation at 120 ℃ for 2.5 hours on the 7075 aluminum alloy for secondary aging treatment; finally, carrying out ultrasonic aging treatment on the 7075 aluminum alloy at 130 ℃ for 2 hours, wherein the power of ultrasonic waves is 1000W. On the basis, the 7075 aluminum alloy with high strength and high plasticity, which has the advantages of less internal dislocation residue, more precipitated phases, uniform distribution and dispersion, fine size and uniform interval precipitation of micro/nano scale precipitated phases (see figure 2), the tensile strength of 570.3MPa and the elongation of 12.1 percent, is obtained.
Example 2:
Firstly, carrying out conventional aging treatment on 7075 aluminum alloy subjected to conventional solution treatment and cold rolling deformation; then, carrying out 475 ℃ heat preservation on the 7075 aluminum alloy for 1h of secondary solid solution treatment, and then quenching in water; then cold rolling and deforming the 7075 aluminum alloy at room temperature, wherein the rolling reduction rate is 39%; carrying out heat preservation at 98 ℃ for 6.3 hours on 7075 aluminum alloy for secondary aging treatment; finally, carrying out ultrasonic aging treatment on the 7075 aluminum alloy at the temperature of 100 ℃ for 1.3 hours, wherein the power of ultrasonic waves is 1000W. On the basis, the 7075 aluminum alloy with high strength and high plasticity, which has less internal dislocation residue, more precipitated phases, uniform distribution and dispersion, fine size, uniform interval precipitation of micro/nano scale precipitated phases, tensile strength of 576.7MPa and elongation of 13.0 percent, is obtained.
Example 3:
Firstly, carrying out conventional aging treatment on 7075 aluminum alloy subjected to conventional solution treatment and cold rolling deformation; then, carrying out 475 ℃ heat preservation on the 7075 aluminum alloy for 1h of secondary solid solution treatment, and then quenching in water; then cold rolling and deforming the 7075 aluminum alloy at room temperature, wherein the rolling reduction rate is 33%; then carrying out heat preservation on the 7075 aluminum alloy at 130 ℃ for 0.8h for secondary aging treatment; finally, carrying out ultrasonic aging treatment on the 7075 aluminum alloy at 160 ℃ for 2.75 hours, wherein the power of ultrasonic waves is 1000W. On the basis, the 7075 aluminum alloy with high strength and high plasticity, which has less internal dislocation residue, more precipitated phases, uniform distribution and dispersion, fine size, uniform interval precipitation of micro/nano scale precipitated phases, tensile strength of 565.4MPa and elongation of 12.4 percent, is obtained.
Comparative example:
the 7075 aluminum alloy after conventional solution treatment and cold rolling deformation is subjected to conventional aging treatment to obtain the 7075 aluminum alloy in a T6 state, wherein the 7075 aluminum alloy has less internal precipitation, uneven distribution, single scale, more dislocation residues (see figure 3), the tensile strength of 552MPa and the elongation of 11.2 percent.
In summary, the invention provides a high-strength high-plasticity aging-strengthening alloy and an ultrasonic aging treatment method thereof, wherein the aging-strengthening alloy after solution treatment and cold plastic deformation is subjected to aging treatment by combining the traditional aging treatment with the ultrasonic aging treatment, and the strength and plasticity of the aging-strengthening alloy are synchronously improved by obtaining a large number of precipitated phases which are finely dispersed and uniformly distributed in the aging-strengthening alloy and greatly reducing dislocation density, so that the high-strength high-plasticity aging-strengthening alloy with excellent comprehensive performance is obtained. The invention can greatly reduce the ageing treatment time of the ageing strengthening alloy, save energy, shorten the production period, reduce the production cost and obtain the ageing strengthening alloy which integrates high strength and high plasticity and has excellent comprehensive performance and is difficult to obtain by traditional ageing treatment.
The above is merely provided as a specific embodiment of the present invention, but the protection of the present invention is not limited thereto, and any equivalent changes or substitutions of the features of the present invention will occur to those skilled in the art, and are encompassed within the scope of the present invention. The scope of the invention is based on the scope defined by the claims.
Claims (10)
1. The ultrasonic aging treatment method of the high-strength high-plasticity aging strengthening alloy is characterized by comprising the following specific steps of:
Step 1: carrying out traditional aging treatment on the aging strengthening alloy subjected to conventional solution treatment and cold plastic deformation;
Step 2: carrying out secondary solid solution treatment on the ageing strengthening alloy treated in the step 1, and then quenching;
Step 3: carrying out secondary cold plastic deformation on the ageing strengthening alloy treated in the step 2;
Step 4: performing secondary aging treatment on the aging strengthening alloy treated in the step 3;
step 5: and (3) carrying out ultrasonic aging treatment on the aging strengthening alloy treated in the step (4), thereby obtaining the high-strength high-plasticity aging strengthening alloy.
2. The ultrasonic aging treatment method for the high-strength and high-plastic aging strengthening alloy according to claim 1, wherein the aging strengthening alloy is one of an aluminum alloy, a copper alloy, a magnesium alloy, a titanium alloy, a zinc alloy, steel, a high-temperature alloy, a metal layered composite material or a metal matrix composite material.
3. The ultrasonic aging treatment method for the high-strength and high-plastic aging strengthening alloy according to claim 1, wherein the cold plastic deformation is at least one of cold rolling, cold extrusion, cold forging and cold drawing.
4. The ultrasonic aging treatment method for the high-strength high-plasticity aging-strengthening alloy according to claim 1, wherein the ultrasonic aging treatment is directly performed after the conventional aging treatment is performed on the aging-strengthening alloy.
5. The ultrasonic aging treatment method for the high-strength and high-plastic aging strengthening alloy according to claim 1, wherein the deformation amount of the cold plastic deformation or the secondary cold plastic deformation is 20% -80%.
6. The ultrasonic aging treatment method for a high-strength and high-plastic aging strengthening alloy according to claim 1, wherein the temperature of the conventional solution treatment or the secondary solution treatment is 200-1250 ℃.
7. The ultrasonic aging treatment method for the high-strength high-plastic aging strengthening alloy according to claim 1, wherein the temperature of the conventional aging treatment or the secondary aging treatment is 100-1000 ℃.
8. The ultrasonic aging treatment method for the high-strength high-plastic aging strengthening alloy according to claim 1, wherein the ultrasonic power adopted by the ultrasonic aging treatment is 400-10000W, preferably 400-3000W.
9. The ultrasonic aging treatment method for the high-strength and high-plasticity aging reinforced alloy, according to claim 8, wherein the power of ultrasonic waves adopted by the ultrasonic aging treatment is 400-3000W.
10. A high strength high plasticity age hardening alloy, characterized in that the high strength high plasticity age hardening alloy is prepared by the ultrasonic aging treatment method according to any one of claims 1 to 9.
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