CN111085546A - Preparation method of super-large wide alloy plate - Google Patents
Preparation method of super-large wide alloy plate Download PDFInfo
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- CN111085546A CN111085546A CN201911331754.4A CN201911331754A CN111085546A CN 111085546 A CN111085546 A CN 111085546A CN 201911331754 A CN201911331754 A CN 201911331754A CN 111085546 A CN111085546 A CN 111085546A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 12
- 239000000956 alloy Substances 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 27
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 238000010791 quenching Methods 0.000 claims abstract description 11
- 230000000171 quenching effect Effects 0.000 claims abstract description 11
- 238000005098 hot rolling Methods 0.000 claims abstract description 8
- 230000002441 reversible effect Effects 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims abstract description 7
- 238000000137 annealing Methods 0.000 claims abstract description 4
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000004381 surface treatment Methods 0.000 claims abstract description 4
- 239000010936 titanium Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 8
- 238000009864 tensile test Methods 0.000 claims description 7
- 229910000734 martensite Inorganic materials 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 238000001953 recrystallisation Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000013021 overheating Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B47/00—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- 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
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a preparation method of an ultra-large-width alloy plate, which comprises the following steps of taking a TA15 titanium alloy plate blank as a raw material, carrying out hot rolling on the plate blank for two times on a 2800mm four-roller reversible hot rolling mill at the phase transition temperature of 990 ℃, wherein the chemical components (mass fraction) are Al 6.66%, Mo1.66%, V2.20%, Zr 2.08% and the balance is Ti, obtaining a semi-finished plate blank with the thickness of 20mm, the deformation of the two times is 71% and 69%, carrying out β quenching on one part of the semi-finished plate blank, carrying out no treatment on the other part of the semi-finished plate blank, carrying out unidirectional rolling and reversing rolling on the 2 semi-finished plate blanks respectively to obtain a semi-finished plate blank with the thickness of 4mm, carrying out cladding and overlapping rolling, carrying out annealing and surface treatment, obtaining the ultra-large-width TA15 titanium alloy plate with the size of 1.2mm x 1200mm x 2500mm, reducing the superplastic forming temperature, greatly reducing the mould cost, reducing the part overheating risk, improving the production efficiency and the production quality and the production period.
Description
Technical Field
The invention relates to the field of alloy plate preparation, in particular to a preparation method of an ultra-large wide alloy plate.
Background
The superplastic forming/diffusion bonding (SPF/DB) technology has rapidly developed into the titanium alloy advanced forming technology widely applied in the world due to the unique superiority, is one of the key technologies for forming large integral complex plate members in the aerospace field, and plays a significant role in reducing the weight of the structure. The quality of the fine-grain titanium alloy plate is a key for determining whether SPF/DB titanium alloy parts can be mature and applied, the fine-grain plate preparation technology is also the most interesting titanium alloy processing frontier technology in the world, and the countries which can stably produce the wide superplasticity titanium alloy plate in batches only have the America and the Russia at present. The TA15 titanium alloy has better processing performance, good comprehensive mechanical property and processing property, has higher strength and better welding performance compared with the TC4 titanium alloy, and is mainly applied to blades and casings of engines, sheet metal parts, beams, joints, large-scale wall plates, welding bearing frames and the like of airplane bodies. In recent years, with the development of superplastic forming technology, TA15 titanium alloy superplastic plates have been used for preparing key parts such as four-layer structure airfoil surfaces, bearing wall plates and the like. But the grain size and the anisotropy control level of the currently prepared fine-grain TA15 titanium alloy plate in China are relatively poor. The main reason is that the stability of the superplastic forming process is difficult to control, so that the performance of superplastic forming parts is extremely unstable, the yield is low, and the wide application of the fine-grain titanium alloy plate is greatly limited.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the preparation method of the alloy plate with the ultra-large width, which reduces the superplastic forming temperature, thereby greatly reducing the mould cost, reducing the risk of overheating parts, shortening the processing period and improving the production efficiency and the production quality.
In order to achieve the aim of the invention, the invention adopts the specific scheme that:
a preparation method of an oversized wide-width alloy plate comprises the following steps of taking a TA15 titanium alloy plate blank as a raw material, carrying out hot rolling on the plate blank for two times on a 2800mm four-roller reversible hot rolling mill at a phase transition temperature of 990 ℃, wherein the chemical components (mass fraction) are Al 6.66%, Mo1.66%, V2.20%, Zr2.08% and the balance is Ti, obtaining a semi-finished plate blank with the thickness of 20mm, the deformation of the semi-finished plate blank for two times is 71% and 69%, carrying out quenching β on one part of the semi-finished plate blank, carrying out non-treatment on the other part of the semi-finished plate blank, carrying out unidirectional rolling and reversing rolling on the 2 semi-finished plate blanks respectively to obtain a semi-finished plate blank with the thickness of 4mm, carrying out cladding and overlapping rolling, and carrying out annealing and surface treatment to obtain the oversized wide-width TA15 titanium alloy plate with the size of 1.2mm x 1200mm x 2500 mm.
Further, since the titanium alloy is likely to generate an oxide layer at the time of thermal deformation, which affects the test results, a glass lubricant is applied to the surface of the sample before the tensile test.
Further, after the β quenching process is added, the microstructure of the plate is more uniform, the grain size is smaller, the β quenching process comprises 2 main processes, firstly, the plate is heated to the phase transition temperature and is kept warm, because the deformation energy is accumulated in the pre-rolling heat, α secondary phase coarsening and spheroidizing occur to perform static recrystallization, the purpose of homogenizing the insufficiently deformed structure of the plate in a high-temperature environment is realized, then, the plate is cooled by water, supersaturated martensite is separated out, and in the subsequent rolling process, the martensite is broken and spheroidized in large deformation, so that the purpose of tissue refinement is realized.
Furthermore, the difference between transverse deformation and longitudinal deformation can be obviously reduced by adopting reverse rolling, so that crystal grains are uniformly deformed, the tissue defects of the plate, such as texture, processing streamline and the like which are not beneficial to uniformity and are formed by rolling with larger unidirectional deformation, are improved, and the tissue uniformity is high.
Further, the TA15 titanium alloy sheet material is at 850--1Under the condition of the superplastic tensile test, the plate has superplasticity and has a relatively low temperature (850 ℃) or a relatively high strain rate (0.01 s)-1) Under the condition, the plate still has better superplastic performance.
The invention has the beneficial effects that:
the addition of β quenching process can improve the uniformity of the microstructure of the TA15 titanium alloy plate, refine the grain size and improve the room-temperature tensile strength of the plate, and the adoption of the reversing rolling process can obviously reduce the difference of the transverse and longitudinal structures of the TA15 titanium alloy plate, improve the uniformity of the structure and reduce the difference of the transverse and longitudinal properties of the plate, so that the TA15 titanium alloy plate prepared by the process D has the temperature of 850-920 ℃ and the temperature of 0.001-0.01 s-1The sheet material has superplasticity under the condition of the superplasticity tensile test. And at a lower temperature (850 ℃ C.) orHigher strain rate (0.01 s)-1) Under the condition, the plate still has better plastic property. The superplastic forming temperature is reduced, so that the mold cost is greatly reduced, the overheating risk of parts is reduced, the processing period is shortened, and the production efficiency and the production quality are improved.
Detailed Description
The present invention is further described below by way of specific examples, but the present invention is not limited to only the following examples. Variations, combinations, or substitutions of the invention, which are within the scope of the invention or the spirit, scope of the invention, will be apparent to those of skill in the art and are within the scope of the invention.
A preparation method of an oversized wide-width alloy plate comprises the following steps of taking a TA15 titanium alloy plate blank as a raw material, carrying out hot rolling on the plate blank for two times on a 2800mm four-roller reversible hot rolling mill at a phase transition temperature of 990 ℃, wherein the chemical components (mass fraction) are Al 6.66%, Mo1.66%, V2.20%, Zr2.08% and the balance is Ti, obtaining a semi-finished plate blank with the thickness of 20mm, the deformation of the semi-finished plate blank for two times is 71% and 69%, carrying out quenching β on one part of the semi-finished plate blank, carrying out non-treatment on the other part of the semi-finished plate blank, carrying out unidirectional rolling and reversing rolling on the 2 semi-finished plate blanks respectively to obtain a semi-finished plate blank with the thickness of 4mm, carrying out cladding and overlapping rolling, and carrying out annealing and surface treatment to obtain the oversized wide-width TA15 titanium alloy plate with the size of 1.2mm x 1200mm x 2500 mm.
Since titanium alloy is likely to generate an oxide layer during thermal deformation, which affects the test results, a glass lubricant is applied to the surface of the sample before the tensile test.
The method is characterized in that β quenching process is added, the microstructure of the plate is more uniform, the grain size is smaller, the β quenching process comprises 2 main processes, firstly, the plate is heated to the temperature above the phase transition temperature and is kept warm, deformation energy is accumulated in the plate in the previous rolling heat, α secondary phase coarsening and spheroidizing occur to perform static recrystallization, the purpose of homogenizing the insufficiently deformed structure of the plate in a high-temperature environment is achieved, then, the plate is cooled by water, supersaturated martensite is separated out, and in the subsequent rolling process, the martensite is broken and spheroidized in large-deformation, so that the purpose of tissue thinning is achieved.
The adoption of reverse rolling can obviously reduce the difference between transverse and longitudinal deformation, so that crystal grains are uniformly deformed, the defects of texture, processing streamline and the like which are unfavorable for uniformity and formed by rolling a plate with larger unidirectional deformation are improved, and the uniformity of the texture is high.
TA15 titanium alloy sheet at 850--1Under the condition of the superplastic tensile test, the plate has superplasticity and has a relatively low temperature (850 ℃) or a relatively high strain rate (0.01 s)-1) Under the condition, the plate still has better superplastic performance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A preparation method of an oversized wide alloy plate is characterized by comprising the following steps of taking a TA15 titanium alloy plate blank as a raw material, carrying out hot rolling on the plate blank for two times on a 2800mm four-roller reversible hot rolling mill at a phase transition temperature of 990 ℃, wherein the chemical components (mass fraction) are Al 6.66%, Mo1.66%, V2.20%, Zr 2.08% and the balance is Ti, obtaining a semi-finished plate blank with the thickness of 20mm, carrying out deformation of 71% and 69% in the two times, carrying out quenching β on one part of the semi-finished plate blank and carrying out no treatment on the other part of the semi-finished plate blank, carrying out unidirectional rolling and reversing rolling on the 2 semi-finished plate blanks respectively to obtain a semi-finished plate blank with the thickness of 4mm, carrying out cladding and overlapping rolling, and carrying out annealing and surface treatment to obtain the oversized wide TA15 titanium alloy plate with the size of 1.2mm x 1200mm x 2500 mm.
2. The method for preparing an ultra-large-width alloy sheet as claimed in claim 1, wherein a glass lubricant is coated on the surface of the sample before the tensile test, because the titanium alloy is easy to generate an oxide layer when being thermally deformed, and the test result is influenced.
3. The method for preparing the ultra-large-width alloy plate according to claim 1, wherein β quenching process is added, the microstructure of the plate is more uniform, the grain size is smaller, the β quenching process comprises 2 main processes, the plate is heated to a temperature higher than the phase transition temperature and is subjected to heat preservation, deformation energy is accumulated in the plate due to the fact that the plate is subjected to preliminary rolling heat, secondary α phase coarsening and spheroidizing occur to perform static recrystallization, the purpose of homogenizing the insufficiently deformed structure of the plate in a high-temperature environment is achieved, the plate is cooled with water to separate out supersaturated martensite, and in the subsequent rolling process, the martensite is broken and spheroidized in large-deformation amount deformation, and the purpose of tissue refinement is achieved.
4. The method for preparing the ultra-large-width alloy plate according to claim 1, wherein the difference between the transverse deformation and the longitudinal deformation can be remarkably reduced by adopting reverse rolling, so that crystal grains are uniformly deformed, the tissue defects of the plate, such as texture, processing flow line and the like which are not beneficial to uniformity and are formed by rolling with large unidirectional deformation, are improved, and the tissue uniformity is high.
5. The method as claimed in claim 1, wherein the TA15 Ti alloy sheet is prepared at 850--1Under the condition of the superplastic tensile test, the plate has superplasticity and has a relatively low temperature (850 ℃) or a relatively high strain rate (0.01 s)-1) Under the condition, the plate still has better superplastic performance.
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| CN201911331754.4A CN111085546A (en) | 2019-12-21 | 2019-12-21 | Preparation method of super-large wide alloy plate |
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| CN201911331754.4A CN111085546A (en) | 2019-12-21 | 2019-12-21 | Preparation method of super-large wide alloy plate |
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| CN201911331754.4A Pending CN111085546A (en) | 2019-12-21 | 2019-12-21 | Preparation method of super-large wide alloy plate |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545574A (en) * | 2020-05-20 | 2020-08-18 | 攀钢集团攀枝花钛材有限公司江油分公司 | TA15 hot rolling plate structure control method |
| CN113351676A (en) * | 2021-06-09 | 2021-09-07 | 湖北美科精毅科技有限公司 | Technique for controlling organization performance and size uniformity of wide-width integrally-extruded wallboard and board |
| CN113578967A (en) * | 2021-06-27 | 2021-11-02 | 中国科学院金属研究所 | Preparation method of 550-650 ℃ high-temperature titanium alloy foil |
| CN113578959A (en) * | 2021-06-27 | 2021-11-02 | 中国科学院金属研究所 | Preparation method of fine-grain TA15 titanium alloy foil |
| CN113930641A (en) * | 2021-10-18 | 2022-01-14 | 东北大学 | Medical beta titanium alloy plate and cold machining manufacturing method for controlling texture thereof |
| CN114101330A (en) * | 2021-11-26 | 2022-03-01 | 中色科技股份有限公司 | Rolling base plate for producing titanium alloy plate |
| CN114310161A (en) * | 2021-12-13 | 2022-04-12 | 哈尔滨工业大学 | Preparation method of light alloy three-dimensional lattice sandwich structure based on high surface quality |
| CN115739993A (en) * | 2022-11-18 | 2023-03-07 | 浙江申吉钛业股份有限公司 | Preparation method of wide titanium alloy plate |
| RU2808020C1 (en) * | 2022-12-12 | 2023-11-22 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Cold-rolled strip for production of corrosion-resistant equipment components and method for its production |
| CN117702028A (en) * | 2023-12-28 | 2024-03-15 | 北京钢研高纳科技股份有限公司 | Ti (titanium) 2 AlNb alloy fine-grain plate and superplastic forming method and application thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545574A (en) * | 2020-05-20 | 2020-08-18 | 攀钢集团攀枝花钛材有限公司江油分公司 | TA15 hot rolling plate structure control method |
| CN113351676A (en) * | 2021-06-09 | 2021-09-07 | 湖北美科精毅科技有限公司 | Technique for controlling organization performance and size uniformity of wide-width integrally-extruded wallboard and board |
| CN113351676B (en) * | 2021-06-09 | 2024-04-12 | 湖北美科精毅科技有限公司 | Method for controlling tissue performance and size uniformity of wide-width integral extruded wallboard and rolled plate |
| CN113578967A (en) * | 2021-06-27 | 2021-11-02 | 中国科学院金属研究所 | Preparation method of 550-650 ℃ high-temperature titanium alloy foil |
| CN113578959A (en) * | 2021-06-27 | 2021-11-02 | 中国科学院金属研究所 | Preparation method of fine-grain TA15 titanium alloy foil |
| CN113578967B (en) * | 2021-06-27 | 2022-05-31 | 中国科学院金属研究所 | Preparation method of 550-650 ℃ high-temperature titanium alloy foil |
| CN113578959B (en) * | 2021-06-27 | 2022-06-03 | 中国科学院金属研究所 | Preparation method of fine-grain TA15 titanium alloy foil |
| CN113930641A (en) * | 2021-10-18 | 2022-01-14 | 东北大学 | Medical beta titanium alloy plate and cold machining manufacturing method for controlling texture thereof |
| CN114101330B (en) * | 2021-11-26 | 2024-03-29 | 中色科技股份有限公司 | Rolling base plate for producing titanium alloy plate |
| CN114101330A (en) * | 2021-11-26 | 2022-03-01 | 中色科技股份有限公司 | Rolling base plate for producing titanium alloy plate |
| CN114310161A (en) * | 2021-12-13 | 2022-04-12 | 哈尔滨工业大学 | Preparation method of light alloy three-dimensional lattice sandwich structure based on high surface quality |
| CN114310161B (en) * | 2021-12-13 | 2022-11-22 | 哈尔滨工业大学 | Preparation method of light alloy three-dimensional lattice sandwich structure based on high surface quality |
| CN115739993A (en) * | 2022-11-18 | 2023-03-07 | 浙江申吉钛业股份有限公司 | Preparation method of wide titanium alloy plate |
| RU2808020C1 (en) * | 2022-12-12 | 2023-11-22 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Cold-rolled strip for production of corrosion-resistant equipment components and method for its production |
| CN117702028A (en) * | 2023-12-28 | 2024-03-15 | 北京钢研高纳科技股份有限公司 | Ti (titanium) 2 AlNb alloy fine-grain plate and superplastic forming method and application thereof |
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Application publication date: 20200501 |