CN103194704B - Preparation method of low-cost nickel baseband with high cube texture content - Google Patents
Preparation method of low-cost nickel baseband with high cube texture content Download PDFInfo
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- CN103194704B CN103194704B CN201310135732.7A CN201310135732A CN103194704B CN 103194704 B CN103194704 B CN 103194704B CN 201310135732 A CN201310135732 A CN 201310135732A CN 103194704 B CN103194704 B CN 103194704B
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Abstract
The invention relates to a preparation method of a low-cost nickel baseband with high cube texture content, and belongs to the technical field of high-temperature superconductive coating conductor metal basebands. The method comprises the following steps of: firstly preparing an initial plate with certain cube texture content through cold rolling and annealing; carrying out cold rolling on the initial plate through 3%-10% of pass reduction, wherein total reduction is 95%-98%; and finally annealing at 700-900 DEG C for 30-60 minutes in a protective gas, wherein the heating rate is 300 DEG C/hour. Texture test analysis discovers that the method disclosed by the invention can be used for obtaining the baseband with very high cube texture content by annealing at lower temperature, thereby reducing the energy consumption and the production cost and increasing the production efficiency; and the method disclosed by the invention is low in cost and has important significance on the production, application and popularization of a second-generation high-temperature superconductive belt material.
Description
Technical field
The present invention relates to the preparation method of a kind of low cost, high cubic texture content nickel-base strip, belong to conductor of high-temperature superconductor coat metal base band technical field.
Background technology
Along with the further investigation of people finds, be that the s-generation conductor of high-temperature superconductor coat of representative has superior performance with YBCO, particularly it has a wide range of applications in field of strong electricity.Preparing high performance metal base band is the important leverage preparing high-performance coating conductor.On high cubic texture content metal base band, only just can be obtained the coating conductor of high critical current densities by epitaxial growth regime deposition transition layer and superconducting layer, the based belt material therefore as coating conductor easily must obtain high cubic texture content.At present, studying based belt material is the most widely Ni and NiW alloy base band.But, along with the increase of alloying element W content, the stacking fault energy of alloy reduces gradually, the deformation mechanism of this alloy in deformation process is changed, result in the change of deformation states texture, finally cause the recrystallization texture generation considerable change after annealing, in base band, the formation of cubic texture becomes very difficult, not easily obtains strong cubic texture.At present, preparing the most frequently used method of biaxial texture nickel-base strip is that biaxial texture base band (RABiTS) method is assisted in rolling, the method is to certain deflection (more than 95%) by cold roller and deformed for metallic nickel base band, and then anneal at a higher temperature, nickel-base strip can be made to obtain stronger cubic texture.Usually, only have cold rolling very large deformation amount (more than 95%) and at high temperature (more than 1200 DEG C) annealing time Ni and Ni alloy base band just can obtain stronger cubic texture.And for example CN1057136C disclosed " a kind of manufacture method of cubic texture nickel-base strip ", relate to a kind of the base band material and the manufacture method thereof that manufacture the YBCO superconducting thick-film of epitaxy high critical current densities, comprise the steps: that a. adopts electronics bombardment zone melting method purifying nickel ingot, make its purity be greater than 99.99%; B. heat under hydrogen shield, blank is made in forging; C. blank surface is cleaned after annealing; D. blank is carried out directed rolling, working modulus is greater than 95%; E. clean final vacuum annealing, annealing temperature is 950 DEG C ~ 1000 DEG C, and annealing time is 5 ~ 15 hours; F. room temperature is cooled in a vacuum.Adopt directed rolling method, its working modulus is greater than 95%.The cubic texture nickel-base strip of method manufacture of the present invention is adopted to have single { 100}<001> texture, crystal (100) face is parallel to the face of rolling, the <100> direction of crystal be parallel to roll to, (002) FWHM (halfwidth) of X-ray diffraction is 5.2 °, can meet the needs of epitaxy YBCO superconducting thick-film.
Because aforesaid method needs very high directed Reduction by rolling and annealing temperature, production cost is higher; In addition, after W content is greater than 5%, even if adopt RABiTS method to be also difficult to obtain the base band of higher cubic texture content.Therefore, the nickel-base strip how adopting the method for low cost to obtain high cubic texture content is the current difficult problem faced.
Summary of the invention
For prior art above shortcomings, the object of the invention is to propose a kind of method preparing the nickel-base strip of high cubic texture content at a lower temperature, can prepare and have that extremely strong { nickel-base strip of 100}<001> cubic texture, to meet the needs preparing buffer layer and conductor of high-temperature superconductor coat in this type of base band.
To achieve these goals, the present invention takes following technical scheme: a kind of preparation method of low-cost nickel baseband with high cube texture content, comprises following processing step:
1) by metal pure nickel or nickel tungsten with 3% ~ 10% reduction in pass carry out cold rolling, total reduction is 80% ~ 90%;
2) metal nickel strap step 1) prepared is at Ar+4%H
2under protective atmosphere, carry out recrystallization annealing with 600 DEG C ~ 900 DEG C, annealing time is 30 ~ 60 min, obtains the band of initial cubic texture content;
3) by step 2) band prepared carries out cold rolling with the reduction in pass of 3% ~ 10%, and total reduction is 95% ~ 98%;
4) band step 3) prepared is at Ar+4%H
2under protective atmosphere, carry out recrystallization annealing with 700 DEG C ~ 900 DEG C, annealing time is 30 ~ 60min, obtains the nickel-base strip of high cubic texture content.
Further, described cold rolling employing unidirection rolling, avoids changing rolling direction and makes cubic texture generation diffusion, reduce the quality of cubic texture, shows as ω scanning and the increase of φ scanning value of a half width.
Further, the reduction in pass in the operation of rolling controls below 10%.In the operation of rolling, the increase of passage, the reduction of reduction in pass make all crystal grain all be subject to the effect of rolling load, participate in transition process, make base band deformation evenly can not produce stress concentration, be conducive to formation and the strengthening of rolling texture and C and S texture component, and C and S texture component plays a decisive role for forming strong cubic texture in annealing process.
Compared to existing technology, the present invention has following beneficial effect:
First the inventive method has prepared the metallic nickel band containing initial cubic texture by cold rolling and annealing, these initial cube orientation crystal grain can remain in cold rolling rear section, thus promote annealing time cubic texture formation, prepare the nickel-base strip (adopt the analysis of X-ray diffraction macroscopic view structure, cubic texture content more than 90% is high cubic texture content) of high cubic texture content; By controlling the cold rolling front initial cubic texture content of base band, (700 DEG C ~ 900 DEG C) annealing at a lower temperature just can prepare the nickel-base strip of high cubic texture content, final recrystallization annealing temperature can be reduced significantly, thus reduce energy consumption and production costs, in addition simple to operate, repeatable strong, do not need expensive device, be easy to scale operation, method of the present invention has a good application prospect.
Experiment prove, form sharp-pointed cubic texture when less reduction in pass is also conducive to recrystallization annealing, show as ω scanning and φ scanning halfwidth less.
Adopt nickel-base strip used for coating conductor prepared by the inventive method, there is sharp-pointed cubic texture { 100}<001>, it is 5 ~ 7 ° that base band (200) face ω scans halfwidth (FWHM), and it is 9 ~ 11 ° that (111) face φ scans halfwidth.
Accompanying drawing explanation
Fig. 1 is the pole figure of the nickel-base strip of preparation in the embodiment of the present invention 1;
Fig. 2 is the pole figure of the nickel-base strip of preparation in the embodiment of the present invention 2;
Fig. 3 is the pole figure of the nickel-base strip that the band not containing initial cubic texture is prepared by cold rolling and annealing.
Respectively containing { 100 }, { 110 } and { 111 } pole figure in above-mentioned accompanying drawing.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Embodiment 1: a kind of preparation method of low-cost nickel baseband with high cube texture content, comprises following processing step:
1) metal pure nickel is carried out 80% deflection cold rolling, pass deformation is 5%;
2) at Ar+4%H
2under protective atmosphere, at 700 DEG C of annealing 1h, obtaining initial cubic texture content is the material of 30%;
3) nickel strap containing initial cubic texture is carried out 96% deformation quantity cold rolling, passage deformation quantity is 5%, and final thickness is 80 μm;
4) by cold rolling nickel strap at Ar+4%H
2under protective atmosphere, 900 DEG C of annealing 30min, obtain the nickel-base strip (see figure 1) that cubic texture content is 98.2%.
Embodiment 2: a kind of preparation method of low-cost nickel baseband with high cube texture content, comprises following processing step:
1) by Ni
5it is cold rolling that W alloy sheet material carries out 80% deflection, and pass deformation is 5%;
2) at Ar+4%H
2under protective atmosphere, at 900 DEG C of annealing 1h, obtaining initial cubic texture content is the material of 15%;
3) nickel strap containing initial cubic texture is carried out 96% deformation quantity cold rolling, passage deformation quantity is 5%, and final thickness is 80 μm;
4) by cold rolling nickel strap at Ar+4%H
2under protective atmosphere, 900 DEG C of annealing 60min, obtain the nickel-base strip (see figure 2) that cubic texture content is 94.8%.
Embodiment 3: a kind of preparation method of low-cost nickel baseband with high cube texture content, comprises following processing step:
1) by Ni
5it is cold rolling that W carries out 90% deflection, and pass deformation is 5%;
2) at Ar+4%H
2under protective atmosphere, at 800 DEG C of annealing 1h, obtaining initial cubic texture content is the material of 10%;
3) nickel strap containing initial cubic texture texture is carried out 96% deformation quantity cold rolling, passage deformation quantity is 5%, and final thickness is 80 μm;
4) by cold rolling nickel strap at Ar+4%H
2under protective atmosphere, 900 DEG C of annealing 30min, obtain the nickel-base strip that cubic texture content is 91.6%.
Embodiment 4: a kind of preparation method of low-cost nickel baseband with high cube texture content, comprises following processing step:
1) metal pure nickel is carried out 80% deflection cold rolling, pass deformation is 5%;
2) at Ar+4%H
2under protective atmosphere, at 600 DEG C of annealing 1h, obtaining initial cubic texture content is the material of 15%;
3) nickel strap containing initial cubic texture texture is carried out 96% deformation quantity cold rolling, passage deformation quantity is 5%, and final thickness is 80 μm;
4) by cold rolling nickel strap at Ar+4%H
2under protective atmosphere, 900 DEG C of annealing 30min, obtain the nickel-base strip that cubic texture content is 93.5%.
Simultaneous test: by not containing the pure nickel sample of initial cube, be cold-rolled to 96% deformation quantity, to anneal at 900 DEG C under argon hydrogen mixture is protected respectively 30min with similarity condition in example, the content of its recrystallize cubic texture is that 82.2%(is shown in Fig. 3).Compared with the base band containing initial cubic texture in described example, cubic texture content will lack a lot.And containing initial cubic texture, Cold Reduction is the Ni of 96%
5w base band anneal at 900 DEG C only to obtain after 30min 65.4% cubic texture.
Find that adopting the method to anneal at a lower temperature just can obtain the base band of very high cubic texture content by texture test analysis, thus energy consumption and production cost can be reduced, enhance productivity.Method of the present invention has great importance to the production of second-generation high-temperature superconductor and application.
The inventive method has prepared the metallic nickel band containing initial cubic texture by cold rolling and annealing; By controlling the cold rolling front initial cubic texture content of base band, can anneal at a lower temperature and obtaining having the Ni base band of very strong cubic texture, recrystallization annealing temperature can be reduced significantly, thus reduce energy consumption and production costs; Recrystallize cubic texture is controlled by controlling initial cubic texture.In addition simple to operate, repeatable strong, do not need expensive device, be easy to scale operation, method of the present invention has a good application prospect.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. a preparation method for low-cost nickel baseband with high cube texture content, comprises following processing step:
1) by metal pure nickel with 3% ~ 10% reduction in pass carry out cold rolling, total reduction is 80% ~ 90%;
2) metal nickel strap step 1) prepared is at Ar+4%H
2under protective atmosphere, carry out recrystallization annealing with 600 DEG C ~ 900 DEG C, annealing time is 30 ~ 60 min, obtains the band of initial cubic texture content;
3) by step 2) band prepared carries out cold rolling with the reduction in pass of 3% ~ 10%, and total reduction is 95% ~ 98%;
4) band step 3) prepared is at Ar+4%H
2under protective atmosphere, carry out recrystallization annealing with 700 DEG C ~ 900 DEG C, annealing time is 30 ~ 60min, obtains the nickel-base strip of high cubic texture content.
2. a preparation method for low-cost nickel baseband with high cube texture content, comprises following processing step:
1) by nickel tungsten with 3% ~ 10% reduction in pass carry out cold rolling, total reduction is 80% ~ 90%;
2) metal nickel strap step 1) prepared is at Ar+4%H
2under protective atmosphere, carry out recrystallization annealing with 600 DEG C ~ 900 DEG C, annealing time is 30 ~ 60 min, obtains the band of initial cubic texture content;
3) by step 2) band prepared carries out cold rolling with the reduction in pass of 3% ~ 10%, and total reduction is 95% ~ 98%;
4) band step 3) prepared is at Ar+4%H
2under protective atmosphere, carry out recrystallization annealing with 700 DEG C ~ 900 DEG C, annealing time is 30 ~ 60min, obtains the nickel-base strip of high cubic texture content;
Described nickel-base strip is NiW base band, and wherein the atomic percentage conc of W is less than 7%.
3. the preparation method of low-cost nickel baseband with high cube texture content according to claim 1 or 2, is characterized in that, in described step 1) and step 3), and described cold rolling employing unidirection rolling.
4. the preparation method of low-cost nickel baseband with high cube texture content according to claim 1 or 2, is characterized in that, in described step 1) and step 3), described cold rolling reduction in pass controls below 10%.
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| CN104942032A (en) * | 2014-03-26 | 2015-09-30 | 无锡市东杨电子有限公司 | Nickel strap production acid-pickling-free process |
| CN106816228B (en) * | 2016-12-16 | 2018-08-24 | 上海超导科技股份有限公司 | Preparation method of the second-generation high-temperature superconductor without textured metal strip |
| CN106816227B (en) * | 2016-12-16 | 2018-08-24 | 上海超导科技股份有限公司 | The preparation method of second-generation high-temperature superconductor metal toughness template |
| CN113426829B (en) * | 2021-06-11 | 2022-08-30 | 无锡市东杨新材料股份有限公司 | Method for reducing S-bend of ultrathin cold-rolled pure nickel strip |
| CN113953317B (en) * | 2021-08-30 | 2024-02-13 | 江苏圣珀新材料科技有限公司 | Cold rolling preparation process of nickel-based alloy strip |
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| DE10143680C1 (en) * | 2001-08-30 | 2003-05-08 | Leibniz Inst Fuer Festkoerper | Process for the production of metal strips with high-grade cube texture |
| DE10342965A1 (en) * | 2003-09-10 | 2005-06-02 | Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. | Nickel-based semifinished product with a recrystallization cube texture and process for its production |
| CN100374596C (en) * | 2006-05-19 | 2008-03-12 | 北京工业大学 | Ni-base alloy composite baseband and powder metallurgy method for preparing same |
| CN102500638B (en) * | 2011-11-24 | 2014-07-23 | 北京工业大学 | Method for producing high-cube-texture high-tungsten-content NI (nickel)-W (tungsten) alloy substrate bands |
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| Effect of Annealing Ways on the Formation of Cube Texture in Ni-5at% W Substrates for YBCO Coated Conductors;Chen Xingpin et al.;《Rare Metal Materials and Engineering》;20111031;第40卷(第3期);全文 * |
| 加工率和热处理制度对Ni5W合金基带立方织构形成的影响;刘春芳 等;《稀有金属材料与工程》;20060228;第35卷(第2期);全文 * |
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