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A non-magnetic strong cubic texture copper-based alloy composite substrate and its preparation method

A technology of strong cubic texture and copper-based alloy, which is applied in the field of preparation of the second-generation coated superconductor textured metal substrate, can solve the problem of low yield strength of the copper-nickel alloy substrate, hysteresis loss, and the impact on the transition layer and the superconducting layer Preparation and other issues to achieve the effect of improving yield strength and high temperature oxidation resistance

Inactive Publication Date: 2016-03-16
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the Ni-5at.%W alloy baseband has been commercially produced, it will cause hysteresis loss when transporting alternating current due to its ferromagnetism in the liquid nitrogen temperature range. Problem, a large number of studies have reported non-ferromagnetic copper-nickel alloy base band, but the yield strength of copper-nickel alloy base band is not high, and in the process of recrystallization heat treatment, if it is under the condition of passing inert gas, due to the trace amount In the presence of oxygen, it is still easy to oxidize at high temperature, which seriously affects the preparation of the subsequent transition layer and superconducting layer

Method used

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  • A non-magnetic strong cubic texture copper-based alloy composite substrate and its preparation method
  • A non-magnetic strong cubic texture copper-based alloy composite substrate and its preparation method
  • A non-magnetic strong cubic texture copper-based alloy composite substrate and its preparation method

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Embodiment 1

[0010] Copper block and nickel block with a purity of 99.99% are proportioned according to the mass percentage of copper of 60%, and the mixed material after proportioning is melted in a vacuum induction melting furnace to obtain a copper-nickel alloy ingot. Then the copper-nickel alloy ingot and the yttrium with a purity of 99.99% are placed in a vacuum induction melting furnace for melting to obtain a Cu-Ni-Y ternary alloy ingot, and the mass percentage of Y is 0.05%; followed by high-temperature forging and heating The initial alloy billet is rolled, and the high-temperature forging and hot rolling processes are 850 ° C for 2 hours; then the initial alloy billet after hot rolling is cold-rolled with a deformation of 20% in each pass and a total deformation of 98%. ; Finally, the cold-rolled alloy base strip is subjected to recrystallization heat treatment under a nitrogen protective atmosphere. The specific process parameters of the recrystallization heat treatment are that ...

Embodiment 2

[0012] The copper block and nickel block with a purity of 99.99% are proportioned according to the mass percentage of copper of 70%, and the mixed material after proportioning is melted in a vacuum induction melting furnace to obtain a copper-nickel alloy ingot. Then put copper-nickel alloy ingot and yttrium with a purity of 99.99% in a vacuum induction melting furnace to obtain Cu-Ni-Y ternary alloy ingot, the mass percentage of Y is 0.1%; followed by high-temperature forging and heating The initial alloy ingot is rolled, and the high-temperature forging and hot rolling processes are both at 800°C for 2 hours; then the initial alloy ingot after hot rolling is cold-rolled with a deformation of 25% in each pass and a total deformation of 98%. ; Finally, the cold-rolled alloy base strip is subjected to recrystallization heat treatment under a nitrogen protective atmosphere. The specific process parameters of the recrystallization heat treatment are to put the cold-rolled alloy ba...

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Abstract

The invention discloses a nonmagnetic high-cube texture copper-base alloy composite base band and a preparation method thereof, and belongs to the technical field of preparation of second-generation coating superconductor texture metal base bands. The technical scheme puts emphasis on that the nonmagnetic high-cube texture copper-base alloy composite base band is Cu-Ni-Y ternary alloy composite base band obtained by smelting a copper-nickel cast ingot and yttrium with the purity of 99.99% in a vacuum induction smelting furnace, wherein the mass percentage of the yttrium is 0.05%-0.1%. The invention also discloses a preparation method of the nonmagnetic high-cube texture copper-base alloy composite base band. The preparation method disclosed by the invention can not only obtain the high-texture degree copper-base alloy composite base band, but also improve the yield strength and high temperature oxidation resistance of the copper-base alloy composite base band, and can realize the industrialized production of the high-property texture copper-base alloy composite base band.

Description

technical field [0001] The invention relates to a nonmagnetic strong cubic textured copper-based alloy composite substrate and a preparation method thereof, belonging to the technical field of preparation of second-generation coated superconductor textured metal substrates. Background technique [0002] Since the discovery of the second generation of high-temperature superconducting materials, countries all over the world have made breakthroughs in the field of superconducting research, opening up broad application prospects for high-temperature superconducting materials. In the preparation of the second generation of high-temperature coated superconductors, RABiTS technology is a commonly used coating superconductor preparation technology. This method is to sequentially grow the transition layer and the superconducting layer on the metal substrate with biaxial texture, as Textured metal substrates for coated superconductivity not only need strong cubic texture to epitaxiall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C9/06C22F1/08
Inventor 刘志勇何庭伟张文晋杨枫宋桂林
Owner HENAN NORMAL UNIV