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A kind of preparation method of high-performance nickel-based alloy composite strip

A technology of composite strips and nickel-based alloys, applied in metal rolling, manufacturing tools, temperature control, etc., can solve problems such as difficult to achieve strong cubic texture, and achieve the effect of good interlayer interface bonding force and uniform surface structure

Active Publication Date: 2022-02-25
ZHOUKOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, nickel-tungsten alloy strips with high tungsten content can be obtained through special processing methods, showing excellent comprehensive performance, but the atomic percentage of tungsten is usually within 9%, and nickel-tungsten alloy strips with higher tungsten content are still difficult to achieve Obtaining a strong cubic texture, the nickel-tungsten alloy strip is used as the substrate material of the coated superconducting strip, and its mechanical properties still need to be further improved

Method used

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  • A kind of preparation method of high-performance nickel-based alloy composite strip
  • A kind of preparation method of high-performance nickel-based alloy composite strip

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Embodiment 1

[0033] The steps of the preparation method of the embodiment of the present invention 1 are as follows:

[0034] Firstly, the Ni-9at.%W and Ni-12at.%W alloy ingots were obtained by vacuum induction melting, and the two ingots were directly hot-rolled to a thickness of 15mm, and the hot-rolling temperature was 1280°C, and then Ni-9at. The .%W hot-rolled sheet is the surface layer material, as the upper and lower layers, and the Ni-12at.%W hot-rolled sheet is the core layer material, and the continuous extrusion method is used to obtain 12mm thick Ni-9at.%W / Ni-12at.% W / Ni-9at.% W composite strip with three-layer structure;

[0035] Perform cold rolling deformation on the composite billet to obtain an alloy base strip with a thickness of 80 μm, and the thickness reduction of each pass is controlled at 5% to 20%;

[0036] Add low-temperature annealing to the above cold rolling process. The specific process is to keep warm at 480°C for 30 minutes when cold rolling to 5mm thick, an...

Embodiment 2

[0040] The steps of the preparation method of the embodiment of the present invention 2 are as follows:

[0041] Firstly, the Ni-9at.%W and Ni-12at.%W alloy ingots were obtained by vacuum induction melting, and the two ingots were directly hot-rolled to a thickness of 15mm, and the hot-rolling temperature was 1280°C, and then Ni-9at. The .%W hot-rolled sheet is the surface layer material, as the upper and lower layers, and the Ni-12at.%W hot-rolled sheet is the core layer material, and the 10mm thick Ni-9at.%W / Ni-12at.% is obtained by continuous extrusion W / Ni-9at.% W composite strip with three-layer structure;

[0042] Perform cold rolling deformation on the composite billet to obtain an alloy base strip with a thickness of 80 μm, and the thickness reduction of each pass is controlled at 5% to 20%;

[0043] Add low-temperature annealing to the above cold rolling process. The specific process is to keep warm at 480°C for 40 minutes when cold rolling to 5mm thick, and then kee...

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Abstract

The invention discloses a method for preparing a high-performance nickel-based alloy composite strip, which comprises the following steps: (1) preparation of a composite billet; (2) cold rolling of the billet; (3) recrystallization of the cold-rolled strip Annealing, finally get high-performance nickel-based alloy composite strip. The preparation method of a high-performance nickel-based alloy composite strip of the present invention obtains a nickel-tungsten composite strip with a high tungsten content by adopting a continuous extrusion method, and the interface bonding force between layers is good. Uniform and fine, a favorable deformation texture is formed during the cold rolling process, which is beneficial to the subsequent recrystallization annealing to obtain a nickel-based alloy composite strip with a strong cubic texture.

Description

technical field [0001] The invention relates to a preparation method of a high-strength, non-ferromagnetic strong cubic texture nickel-based alloy composite strip, belonging to the technical field of textured metal base strips for high-temperature coating superconducting strips. Background technique [0002] The second-generation high-temperature superconducting tape has superior physical properties and has potential application value in the fields of electric power, transportation and military affairs. The second-generation high-temperature superconducting tape is composed of a multi-layer structure, with a high-strength metal as the substrate, an epitaxial growth transition layer and a superconducting layer film. For high-performance superconducting tapes, the high-performance substrate tape Preparation is one of the key technologies. High-performance substrate strips not only need to have a strong cubic texture, but also have excellent mechanical properties, and at the sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C19/03C22F1/02C22F1/10C21D9/52B21B1/46B21B37/56B21B37/74
CPCC22C1/02C22C19/03C22F1/10C22F1/02C21D9/52B21B1/463B21B37/56B21B37/74B21B2265/10B21B2201/06
Inventor 朱晓垒王霄萍韩金钟理记涛孟明刘奎立
Owner ZHOUKOU NORMAL UNIV
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