CN110938757B - Preparation method of ultrahigh-strength texture nickel-based alloy baseband - Google Patents
Preparation method of ultrahigh-strength texture nickel-based alloy baseband Download PDFInfo
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- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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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
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
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- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21B1/22—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 plates, strips, bands or sheets of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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Abstract
A preparation method of an ultra-high strength texture nickel base alloy baseband comprises the following steps: (1) alloy smelting and hot rolling: the nickel-based alloy ingot with 13-15% of tungsten atom and 80-90 ppm of carbon atom is obtained by a smelting method, and is hot-rolled to 5.6-6.0 mm, and the hot-rolling process comprises the following steps: the initial rolling temperature is 1295-1310 ℃, and the final rolling temperature is 1100-1130 ℃; (2) solution treatment of alloy billets: carrying out solution treatment on the hot-rolled billet, and keeping the temperature at 1380-1400 ℃ for 26-34 min; (3) cold rolling and heat treatment: removing scale from the hot rolled plate subjected to solution treatment, then cold rolling the hot rolled plate to 100-120 mu m, and carrying out heat treatment, wherein the process comprises the following steps: heating to 690-710 ℃ at a heating rate of 1.7-2.4 ℃/min, preserving heat for 1.5-3.5 min, cooling with the furnace, preserving heat for 7-9 hours at 1350-1380 ℃, performing heat treatment in a furnace-entering manner, performing air cooling after heat preservation, and performing heat treatment in a protective atmosphere except for air cooling. The nickel-based alloy with high tungsten content has no ferromagnetism in a liquid nitrogen temperature region and has high mechanical property.
Description
Technical Field
The invention relates to a texture metal base band for a reinforced high-temperature coating superconductor, in particular to a preparation method of a non-ferromagnetic ultrahigh-strength texture nickel-based alloy base band.
Background
The second generation high temperature superconducting material has wide application prospect in the fields of electric power, traffic, military and the like, wherein, the second generation coating superconducting tape is of a multilayer composite structure and consists of a texture metal base band, a transition layer and a superconducting layer, and the second generation coating superconducting tape is used as a substrate material of the coating superconducting tape and needs high yield strength, no ferromagnetism and strong cubic texture.
The Ni-5 at.% W alloy baseband is the most mature alloy material, but the yield strength is low, the magnetic performance is realized, the composite baseband is not a perfect baseband material, and in order to improve the mechanical property and reduce the ferromagnetism, the two problems can be effectively solved by the composite baseband, but the preparation cost of the composite baseband is too high, the efficiency is low, the composite baseband is not suitable for mass production, and the high-performance nickel-tungsten alloy baseband is not commercially produced. From the preparation cost, the single-layer nickel-tungsten alloy baseband still has great research value, and the nickel-tungsten alloy with high W content has the characteristics of high strength and no ferromagnetism, but the strong cubic texture is difficult to obtain by the traditional method, so how to obtain the nickel-tungsten alloy baseband with the strong cubic texture and high tungsten content has far-reaching practical value.
Disclosure of Invention
The invention aims to provide a method for preparing an ultra-high strength texture nickel base alloy baseband so as to improve the mechanical property of a metal baseband and obtain a strong cubic texture.
Therefore, the invention provides a preparation method of an ultrahigh-strength texture nickel-based alloy baseband, which comprises the following steps: (1) alloy smelting and hot rolling: the nickel-based alloy ingot with 13-15% of tungsten atom and 80-90 ppm of carbon atom is obtained by a smelting method, and then is hot-rolled to 5.6-6.0 mm, and the hot-rolling process comprises the following steps: the initial rolling temperature is 1295-1310 ℃, and the final rolling temperature is 1100-1130 ℃; (2) solution treatment of alloy billets: carrying out solution treatment on the cast ingot after hot rolling, and keeping the temperature at 1380-1400 ℃ for 26-34 min; and, (3) cold rolling and heat treatment: the hot rolled plate obtained by the solution treatment is descaled and then is cold-rolled to 100-120 mu m, and then the cold rolled strip is subjected to heat treatment, and the process comprises the following steps: heating to 690-710 ℃ at a heating rate of 1.7-2.4 ℃/min, preserving heat for 1.5-3.5 min, cooling with the furnace, preserving heat for 7-9 hours at 1350-1380 ℃, performing heat treatment in a furnace-entering manner at the temperature, and performing air cooling after heat preservation, wherein a protective atmosphere is adopted in the heat treatment process except for air cooling.
Preferably, in the step (1), the melting method is vacuum induction melting.
Preferably, in the step (1), the initial rolling temperature is 1300 ℃.
Preferably, in the step (2), the heat is maintained for 30min during the solution treatment.
Preferably, in the step (2), the temperature at which the solution treatment is performed is 1400 ℃.
Preferably, in the step (3), the heat treatment is carried out by heating to 700 ℃ at a temperature increase rate of 2 ℃/min, holding the temperature for 2min, and then cooling the heated product in a furnace.
Preferably, in step (3), the furnace is cooled and then the temperature is maintained at 1370 ℃ for 8 hours.
Preferably, in step (3), the protective atmosphere during the heat treatment is high purity argon.
Compared with the prior art, the nickel-based alloy with high tungsten content has no ferromagnetism in a liquid nitrogen temperature region and has high mechanical property. The invention adopts the solid solution treatment to control the thickness of the cold-rolled base strip, obtains the alloy base strip with uniform structure and small grain size in the subsequent heat treatment process in a slow temperature rise mode, and can form a cubic texture with certain strength.
Drawings
The drawings used in the present application will be briefly described below, and it should be apparent that they are merely illustrative of the concepts of the present invention.
FIG. 1 is a {111} plane polar diagram of a base band in embodiment 1 of the present invention.
FIG. 2 is a {111} plane polar diagram of the baseband in embodiment 2 of the present invention.
Detailed Description
An example of the method of manufacturing the ultra-high strength textured nickel base alloy substrate strip of the present invention will now be described.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include any obvious replacement or modification of the embodiments described herein.
Example 1
The preparation method of embodiment 1 of the invention comprises the following steps:
the method comprises the following steps:
(1) alloy melting and hot rolling
The nickel-based alloy ingot with 13 percent of tungsten atom and 80ppm of carbon atom is obtained by a smelting method, and then is hot-rolled to 5.8mm, and the hot-rolling process comprises the following steps: the initial rolling temperature is 1300 ℃, and the final rolling temperature is 1100 ℃;
(2) solution treatment of alloy ingots
Carrying out solution treatment on the cast ingot after hot rolling, and keeping the temperature at 1380 ℃ for 30 min;
(3) cold rolling and heat treatment
The hot rolled plate obtained by the solution treatment is descaled and then is cold-rolled to 100 mu m, and then the cold rolled strip is subjected to heat treatment, and the process comprises the following steps: heating to 700 ℃ at the heating rate of 2 ℃/min, preserving heat for 2min, cooling along with the furnace, preserving heat for 8 hours at 1350 ℃, performing heat treatment in a mode of entering the furnace, and performing air cooling after finishing heat preservation, wherein the protective atmosphere in the heat treatment process is high-purity argon.
The {111} plane pole figure of the surface of the alloy base strip obtained in example 1 is shown in fig. 1, and the yield strength of the base strip at room temperature is 720MPa, which is significantly higher than that of the Ni-5 at.% W alloy base strip.
Example 2
The preparation method of embodiment 2 of the invention comprises the following steps:
(1) alloy melting and hot rolling
The nickel-based alloy ingot with the tungsten atom percentage content of 15% and the carbon atom percentage content of 90ppm is obtained by a smelting method, and then is hot-rolled to 5.8mm, and the hot-rolling process comprises the following steps: the initial rolling temperature is 1300 ℃, and the final rolling temperature is 1130 ℃;
(2) solution treatment of alloy ingots
Carrying out solution treatment on the cast ingot after hot rolling, and keeping the temperature at 1400 ℃ for 30 min;
(3) cold rolling and heat treatment
The hot rolled plate obtained by the solution treatment is descaled and then is cold-rolled to 100 mu m, and then the cold rolled strip is subjected to heat treatment, and the process comprises the following steps: heating to 700 ℃ at the heating rate of 2 ℃/min, preserving heat for 2min, cooling along with the furnace, preserving heat for 8 hours at 1370 ℃, performing heat treatment in a manner of entering the furnace at the temperature, and performing air cooling after the heat preservation is finished, wherein the protective atmosphere in the heat treatment process is high-purity argon.
The {111} plane pole figure of the surface of the alloy base strip obtained in example 2 is shown in fig. 2, and the yield strength of the base strip at room temperature is 750MPa, which is significantly higher than that of the Ni-5 at.% W alloy base strip.
Although the preferred vacuum induction melting method is used to manufacture the starting alloy ingot in step (1) of the above examples, the preparation of the starting alloy ingot of the present invention is not limited to the vacuum induction melting method, and other melting methods may be used to manufacture the starting alloy ingot, as long as the nickel-based alloy ingot having the tungsten and carbon contents satisfying the requirements of the present invention can be obtained.
The above examples are merely specific embodiments selected to illustrate the concept of the present invention, and in these examples, specific processes are components of specific aspects of the present invention, but specific parameters in specific processes are merely preferred and are not necessarily to be construed as limiting the scope of the present invention. The following steps are provided to illustrate preferred ranges of some process parameters of the preparation method of the strong cubic texture metal base band.
Step 1: alloy melting and hot rolling
The nickel-based alloy ingot with 13-15% of tungsten atom and 80-90 ppm of carbon atom is obtained by a smelting method, and then the nickel-based alloy ingot can be hot-rolled to 5.6-6.0 mm, and the hot-rolling process can be as follows: the initial rolling temperature is 1295-1310 ℃, and the final rolling temperature is 1100-1130 ℃. The tungsten atom percentage is, for example, 14%.
Step 2: solution treatment of alloy ingots
When the hot rolling billet is subjected to solution treatment, the temperature can be 1380-1400 ℃, and the heat preservation time can be 26-34 min.
And step 3: cold rolling and heat treatment
The hot rolled plate obtained by solution treatment can be cold-rolled to 100-120 μm after descaling, and the subsequent heat treatment process can be as follows: heating to 690 ℃ at a heating rate of 1.7 ℃/min-2.4 ℃/min
And (3) carrying out heat preservation at the temperature of 710 ℃ for 1.5-3.5 min, then cooling along with the furnace, then carrying out heat preservation at the temperature of 1350-1380 ℃ for 7-9 hours, carrying out heat treatment in a mode of entering the furnace at the temperature, and carrying out air cooling after the heat preservation is finished, wherein a protective atmosphere is adopted in the heat treatment process except for the air cooling.
It should be noted that: the preparation method of the invention comprises specific limitations on processes, which are special limitations made by the invention for obtaining the high-performance strong cubic texture metal base band and are preparation steps determined by the inventor through hard research and development. The specific process can enable the composite baseband to have different performances. The general scheme of the invention is the basis for achieving the objects of the invention, and the specific processes are important guarantees for achieving the objects of the invention.
The invention adopts the solid solution treatment to control the thickness of the cold-rolled base strip, obtains the alloy base strip with uniform structure and small grain size in the subsequent heat treatment process in a slow temperature rise mode, and can form a cubic texture with certain strength. The nickel-based alloy with high tungsten content has no ferromagnetism in a liquid nitrogen temperature region and has high mechanical property.
Therefore, the invention provides a preparation method of the nickel-based alloy baseband with the ultrahigh strength texture, which solves the technical obstacles in the prior art and finds a new way for obtaining the metal baseband with the strong cube texture.
The embodiments of the method for producing the ultra-high strength textured nickel-based alloy baseband according to the present invention are described above. The specific characteristics, such as specific process parameters, of the method for preparing the ultra-high strength textured nickel-based alloy baseband according to the present invention can be specifically designed according to the functions of the characteristics disclosed above, and the design can be realized by those skilled in the art. Moreover, the technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention, so as to achieve the purpose of the invention.
Claims (7)
1. A preparation method of an ultra-high strength texture nickel base alloy baseband comprises the following steps:
(1) alloy melting and hot rolling
The nickel-based alloy ingot with 13-15% of tungsten atom and 80-90 ppm of carbon atom is obtained by a smelting method, and then is hot-rolled to 5.6-6.0 mm, and the hot-rolling process comprises the following steps: the initial rolling temperature is 1295-1310 ℃, and the final rolling temperature is 1100-1130 ℃;
(2) solution treatment of alloy ingots
Carrying out solution treatment on the cast ingot after hot rolling, and keeping the temperature at 1380-1400 ℃ for 26-34 min; and
(3) cold rolling and heat treatment
The hot rolled plate obtained by the solution treatment is descaled and then is cold-rolled to 100-120 mu m, and then the cold rolled strip is subjected to heat treatment, and the process comprises the following steps: heating to 690-710 ℃ at a heating rate of 1.7-2.4 ℃/min, preserving heat for 1.5-3.5 min, cooling along with the furnace, preserving heat for 7-9 hours at 1350-1380 ℃, performing heat treatment in a manner of entering the furnace at the temperature, and performing air cooling after the heat preservation is finished, wherein a protective atmosphere is adopted in the heat treatment process except the air cooling, and the protective atmosphere is high-purity argon.
2. The production method according to claim 1, wherein in the step (1), the melting method is vacuum induction melting.
3. The production method according to claim 1, wherein, in the step (1), the initial rolling temperature is 1300 ℃.
4. The production method according to claim 1, wherein in the step (2), the temperature is maintained for 30min while the solution treatment is performed.
5. The production method according to claim 1, wherein in the step (2), the temperature at the time of the solution treatment is 1400 ℃.
6. The method according to claim 1, wherein in the step (3), the heat treatment is carried out by heating to 700 ℃ at a temperature increase rate of 2 ℃/min for 2min and then furnace-cooling.
7. The method according to claim 1, wherein in the step (3), the temperature is maintained at 1370 ℃ for 8 hours after the furnace cooling.
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Citations (4)
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| TW201103999A (en) * | 2009-07-22 | 2011-02-01 | China Steel Corp | Method for manufacturing nickel alloy target |
| CN106381418A (en) * | 2016-08-31 | 2017-02-08 | 河南师范大学 | Preparation method of high-cube texture Ni-10at. percent W alloy base band |
| CN106399756A (en) * | 2016-08-31 | 2017-02-15 | 河南师范大学 | Preparation method of high-performance cube texture nickel base alloy baseband |
| CN107267901A (en) * | 2017-07-04 | 2017-10-20 | 焦作大学 | A kind of preparation method of high intensity without ferromagnetism texture Ni W alloy base band |
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| EP1997923B1 (en) * | 2006-03-20 | 2016-03-09 | National Institute for Materials Science | Method for producing an ni-base superalloy |
| CN105886841A (en) * | 2016-06-13 | 2016-08-24 | 上海大学兴化特种不锈钢研究院 | Technology for increasing proportion of low sigma coincidence site lattice grain boundary of nickel-base superalloy Hastelloy N |
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| TW201103999A (en) * | 2009-07-22 | 2011-02-01 | China Steel Corp | Method for manufacturing nickel alloy target |
| CN106381418A (en) * | 2016-08-31 | 2017-02-08 | 河南师范大学 | Preparation method of high-cube texture Ni-10at. percent W alloy base band |
| CN106399756A (en) * | 2016-08-31 | 2017-02-15 | 河南师范大学 | Preparation method of high-performance cube texture nickel base alloy baseband |
| CN107267901A (en) * | 2017-07-04 | 2017-10-20 | 焦作大学 | A kind of preparation method of high intensity without ferromagnetism texture Ni W alloy base band |
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