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Preparation method of Ni-W alloy composite baseband with no or low magnetism and cubic texture

A cubic texture and composite baseband technology, which is applied in the field of preparation of cubic textured nickel-based alloy composite basebands for high-temperature coated superconductors, can solve the problems of high cubic texture, non-magnetism, and high strength.

Active Publication Date: 2013-04-24
深创超导(深圳)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the single-layer NiW alloy baseband is difficult to meet the requirements of high cubic texture content, non-magnetic, and high strength.

Method used

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  • Preparation method of Ni-W alloy composite baseband with no or low magnetism and cubic texture
  • Preparation method of Ni-W alloy composite baseband with no or low magnetism and cubic texture
  • Preparation method of Ni-W alloy composite baseband with no or low magnetism and cubic texture

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Experimental program
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Effect test

Embodiment 1

[0023] The Ni powder and W powder with a purity of 99.99% are respectively proportioned according to the ratio of the atomic percentage of W to 7% and 9.3%; Grind in a planetary high-energy ball mill with a hydrogen protective atmosphere until they are evenly mixed; put the mixed powders of two different proportions into an intermediate frequency vacuum induction furnace with a protective atmosphere for melting to obtain two Ni-W alloys with different W contents Ingot casting; then two kinds of Ni-W alloy ingots are obtained through hot forging and hot rolling; two initial ingots with the same size and a thickness of 1mm are obtained by wire cutting; The ingot was cold-rolled to 0.5mm, the deformation of each pass was controlled at 5%, and the total deformation was 50%, so as to obtain two cold-rolled ingots with the same thickness; the Ni-W alloy ingot with low W content after cold rolling was recorded as is A, and the Ni-W alloy ingot with high W content is denoted as B; the...

Embodiment 2

[0025] Ni powder and W powder with a purity of 99.99% were proportioned according to the ratio of W atomic percentage of 9.3% and 12% respectively; Grind in a planetary high-energy ball mill with a hydrogen protective atmosphere until they are evenly mixed; put the mixed powders of two different proportions into an intermediate frequency vacuum induction furnace with a protective atmosphere for melting to obtain two Ni-W alloys with different W contents Ingot casting; then two kinds of Ni-W alloy ingots are obtained through hot forging and hot rolling; two initial ingots with the same size and a thickness of 2mm are obtained by wire cutting; The ingot is cold-rolled to 1 mm, the deformation of each pass is controlled at 9%, and the total deformation is 50%, so as to obtain two cold-rolled ingots with the same thickness; the Ni-W alloy ingot with low W content after cold rolling is recorded as A, the Ni-W alloy ingot with high W content is denoted as B; the contact surface of t...

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Abstract

The invention provides a preparation method of a Ni-W alloy composite baseband with no or low magnetism and a cubic texture and belongs to the technical field of preparation of high-temperature coating superconducting basebands. The method comprises the following steps: respectively preparing two Ni-W alloy billets with different W contents and the same size; overlaying, welding and fixing the two Ni-W alloy billets together; coldly rolling the two Ni-W alloy billets, wherein the total deformation is 50%; carrying out restorative heat treatment on the two Ni-W alloy billets during rolling; cutting off edge cracks and burrs of the Ni-W alloy billets; dividing the Ni-W alloy billets into twos from the middle parts; carrying out accumulative roll bonding on the Ni-W alloy billets, so that outermost layers of the multi-layer overlaid and rolled billets are all Ni-W alloys with low W contents, wherein the accumulative roll bonding repeats overlaying, welding, rolling and restorative heat treatment for 1-4 times; carrying out restorative annealing on the Ni-W alloy billets between cold rolling and rolling; and recrystallizing and annealing the Ni-W alloy billets in two steps. The preparation method of the Ni-W alloy composite baseband with no or low magnetism and the cubic texture, provided by the invention, can obtain the composite baseband with excellent performance.

Description

technical field [0001] The invention relates to a method for preparing a cubic-textured nickel-based alloy composite base tape for high-temperature coating superconductors, and belongs to the technical field of preparation of high-temperature coating superconducting base tapes. Background technique [0002] The history of superconductivity has been more than a hundred years since Professor Onnes discovered the superconductivity of Hg, and since the discovery of the second generation of high-temperature superconductors (yttrium barium copper oxide (YBa 2 Cu 3 o 7-X )) Since then, high-temperature superconducting materials have entered the stage of practical research and development, and the durability and stability of coated conductor oxide composite superconducting materials have attracted extensive attention from material scientists. In the preparation of second-generation coated superconductors by applying the RABiTS route, the key to obtain high-performance coated condu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/10
Inventor 索红莉孟易辰王毅尹小文马麟田辉王金华李孟晓
Owner 深创超导(深圳)科技有限公司
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