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Nonmagnetic texture NiV (nickel vanadium) alloy base band and smelting preparation method thereof

A non-magnetic and alloy technology, applied in the field of non-magnetic textured NiV alloy base strips for coated conductors and its preparation, can solve the problems of decreased stacking fault energy of alloys, unsatisfactory cubic texture content, limited practical application, etc. The effect of cubic texture

Inactive Publication Date: 2011-08-17
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the Ni9.3at.%W alloy base band is non-magnetic in the liquid nitrogen temperature range, its cubic texture content is not ideal
This is because as the W content continues to increase, the stacking fault energy of the alloy decreases sharply, resulting in a significant reduction in the cubic texture content of the NiW baseband obtained according to the traditional RABiTS technology, thus limiting its practical application.

Method used

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  • Nonmagnetic texture NiV (nickel vanadium) alloy base band and smelting preparation method thereof
  • Nonmagnetic texture NiV (nickel vanadium) alloy base band and smelting preparation method thereof
  • Nonmagnetic texture NiV (nickel vanadium) alloy base band and smelting preparation method thereof

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Effect test

Embodiment 1

[0021] The Ni block and the V block with a purity of 99.9% are smelted at 1600°C for 10 minutes under vacuum conditions to form a NiV alloy solid solution according to the proportion of V at 12%, and then cast and forged to obtain the NiV alloy. Initial ingot casting; the initial ingot is hot-rolled to obtain the initial ingot; the initial ingot is cold-rolled, and the pass deformation is 5%, and finally a cold-rolled base strip with a total deformation of 98% and a thickness of 80 μm is obtained; Rolled base strip in Ar4%H 2 Anneal at 550° C. for 30 minutes under a protective atmosphere of mixed gas, and then raise the temperature to 1100° C. and anneal for 60 minutes to obtain the final alloy base strip. The (111) and (002) surface pole figures of the alloy baseband are as follows figure 1 shown by figure 1 It can be seen that the alloy substrate has a strong cubic texture.

Embodiment 2

[0023] The Ni block and the V block with a purity of 99.99% are smelted at 1600°C for 10 minutes under vacuum conditions to form a NiV alloy solid solution according to the proportion of V at 11%, and then cast and forged to obtain the NiV alloy. Initial ingot casting; the initial ingot is hot-rolled to obtain the initial ingot; the initial ingot is cold-rolled, the pass deformation is 10%, and the final cold-rolled base strip with a total deformation of 95% and a thickness of 60 μm is obtained; Rolled base strip in Ar4%H 2 Anneal at 550° C. for 30 minutes under a protective atmosphere of mixed gas, and then raise the temperature to 900° C. and anneal for 90 minutes to obtain the final alloy base strip. The (111) and (002) surface pole figures of the alloy baseband are as follows figure 2 shown by figure 2 It can be seen that the alloy substrate has a strong cubic texture.

Embodiment 3

[0025] The Ni block and the V block with a purity of 99.9% are smelted at 1600°C for 10 minutes under vacuum conditions to form a NiV alloy solid solution according to the proportion of V at 9%, and then cast and forged to obtain the NiV alloy. Initial ingot casting; the initial ingot is hot-rolled to obtain the initial ingot; the initial ingot is cold-rolled, and the pass deformation is 15%, and finally a cold-rolled base strip with a total deformation of 95% and a thickness of 120 μm is obtained; Rolled base strip in Ar4%H 2 Anneal at 550° C. for 30 minutes under a protective atmosphere of mixed gas, and then raise the temperature to 1050° C. and anneal for 30 minutes to obtain the final alloy base strip. The (111) and (002) surface pole figures of the alloy baseband are as follows image 3 shown by image 3 It can be seen that the alloy substrate has a strong cubic texture.

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Abstract

The invention discloses a nonmagnetic texture NiV (nickel vanadium) alloy base band and a smelting preparation method thereof, belonging to the technical field of a high-temperature superconductivity coating conductor metal base band. The components of the alloy base band comprise Ni (88 to 91at.%) and V (9 to 12at.%) by the atom percentage. The smelting method for preparing the alloy base band comprises the following steps of: (1) preparation of raw materials ratio and initial billets; (2) deformation rolling of the initial billets; and (3) recrystallization and thermal treatment of a cold rolling base band. The alloy base band prepared by the smelting method has characteristics of non-magnetism, high cubic texture and the like and is suitable for industrial production.

Description

technical field [0001] The invention relates to a non-magnetic textured NiV alloy base band for a coated conductor and a preparation method thereof, belonging to the technical field of high-temperature superconducting coated conductor metal base bands. Background technique [0002] Coated superconductivity is a research hotspot and focus in the international superconductivity field. Among them, YBCO, the second-generation high-temperature superconducting material, has become a research hotspot for researchers because of its better performance and lower cost. Preparation of high-performance metal substrates is the key to obtain high-performance coated superconductors. Since the metal alloy baseband plays an important role in supporting, epitaxial transition layer and superconducting thin film, and carrying part of the current, in order to meet the needs of high-performance superconducting strips, high texture, high conductivity, small AC loss, relatively high The acquisitio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/03C22F1/10
Inventor 袁冬梅索红莉高忙忙邱火勤马麟刘敏田辉王营霞徐燕王金华
Owner BEIJING UNIV OF TECH
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