Preparation method of high-strength and strong-cube-texture Ni-W baseband

Abstract

The invention discloses a preparation method of a high-strength and strong-cube-texture Ni-W baseband. The preparation method of the high-strength and strong-cube-texture Ni-W baseband comprises the following steps of (1) alloy thin strip continuous casting and heat treatment, wherein the percentage content of tungsten atoms is 12%, a continuous casting thin strip technology is adopted to obtain aNi-W binary alloy billet, the thickness of the billet is 2.0 mm, the content of the impurity elements of S, C and P is controlled to be 30 ppm or below correspondingly, and a heat treatment on the billet is carried out, wherein the technique of the heat treatment is to preserve heat for 2 hours at the temperature of 1300 DEG C; (2) hot rolling of the alloy billet, wherein the hot rolling on the billet is carried out, and a hot rolling technique comprises the parameters that the rolling temperature is 1380 DEG C, the final rolling temperature ranges from 1150 to 1180 DEG C, the one-pass hot rolling is carried out and the deformation amount is 50%; and (3) cold rolling and heat treatment on a hot rolled plate, wherein cold rolling is carried out after the hot rolled plate is descaled, the cold rolling deformation amount is 70-78%, and a cold-rolled strip is subjected to a recovery heat treatment, wherein the technique of the recovery heat treatment comprises the step that the heat preservation is carried out for 2 min at 700 DEG C; and then a recrystallization heat treatment is carried out, wherein the technique of recrystallization heat treatment comprises the step that heat preservation is carried out for 20 min at 1260-1300 DEG C under an external magnetic field of 8-12 T. The high-strength and strong-cube-texture Ni-W baseband has the advantages of being high in strength andstrong in cube texture.

Description

technical field [0001] The invention relates to a preparation method of a high-temperature coated superconductor strip reinforced textured metal base band, in particular to a preparation method of a non-ferromagnetic high-strength textured nickel-tungsten alloy base band. Background technique [0002] The second-generation high-temperature superconducting materials have a wide range of application values ​​in the fields of strong electricity, strong magnetism, and weak electricity. [0003] The second-generation coated superconducting tape is composed of a ductile metal substrate and its epitaxially grown multilayer film. The ferromagnetism, strong cubic texture and mechanical properties of the metal substrate tape are the most important in the field of coating superconducting tape preparation. problem to be solved. At present, the Ni-5at.% W alloy base strip has been commercially produced, but the mechanical strength and magnetic properties of the Ni-5at.% W alloy base str...

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Problems solved by technology

At present, the Ni-5at.% W alloy base strip has been commercially produced, but the mechanical strength and magnetic properties of the Ni-5at.% W alloy base strip cannot meet the requirements of high-performance coated superconducting strips, making the application of superconducting materials The field is limited to a large extent. Although the mechanical properties and magnetic properties can be effectively improved with the increase of W content, it is suitable for the research of high-performance basebands, but it is difficult to obtain strong cubic texture through traditional preparation routes, resulting in high-performance nickel-tungsten The alloy baseband has not yet been commercially produced, which is a difficulty in the current research on nickel-tungsten alloy basebands

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