Nickel alloy base strip with cubic texture, and preparation method thereof

Abstract

The invention discloses a nickel alloy base strip with a cubic texture, and a preparation method thereof. The method comprises the following steps: (1) preparation for an initial alloy billet: obtaining a nickel alloy cast ingot containing tungsten with atomic percent of 9.5% and carbon with atomic percent of 0.006%-0.009% through vacuum induction smelting, and obtaining the initial alloy billet through forging and hot-rolling; (2) cold-rolling for the alloy billet: carrying out cold-rolling on the obtained initial alloy billet until the thickness is 35[mu]m-55[mu]m and the total deformation amount is 98%, and obtaining a cold-rolled nickel alloy base strip; and (3) recrystallization heat treatment for the cold-rolled alloy base strip: carrying out recrystallization heat treatment on the obtained cold-rolled alloy base strip to obtain the nickel alloy base strip with a strong cubic texture, wherein the recrystallization heat treatment process is as follows: heat insulation is carried out for 2-2.5 hours at 1100-1280 DEG C, the heating speed is 3-5 DEG C / min, and the annealing atmosphere is pure hydrogen. The nickel alloy base strip with the cubic texture is provided with the strongcubic texture, free from ferromagnetic property, and high in strength.

Description

technical field [0001] The invention relates to a technology for preparing a high-temperature coating superconducting strip industrialized textured metal base band, in particular to a cubic textured nickel alloy base band and a preparation method thereof. Background technique [0002] With the successful development of YBCO high-temperature superconducting materials, YBCO coated superconductors have potential application value in energy, transportation, medical, military and other fields. For YBCO-coated superconducting tapes prepared by RABiTS technology, that is, calendering-assisted biaxial texture technology, obtaining a metal base tape with strong cubic texture, no ferromagnetism, and high yield strength is the key to preparing high-performance coated superconducting tapes. The key to material. [0003] At present, the cubic texture Ni-5at.%W alloy substrate used for coated superconducting strips has been developed very maturely, but due to its insurmountable intrinsic...

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Problems solved by technology

[0003] At present, the cubic texture Ni-5at.%W alloy substrate used for coated superconducting strips has been developed very maturely, but due to its insurmountable intrinsic defects such as ferromagnetism and yield strength, the coating superconducting materials are limited. further wide application of

Studies have shown that when the atomic percentage of tungsten reaches more than 9%, the nickel-tungsten alloy substrate shows no ferromagnetism in the liquid nitrogen temperature zone, but its preparation method is complicated, so it has defects in industrial production.

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