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High-performance zirconium-titanium binary alloy and preparation method thereof

A binary alloy and titanium alloy technology, applied in the field of new zirconium-titanium alloy and its preparation, can solve the problems of wear resistance, unsatisfactory dimensional stability, low strength, low hardness, etc., and achieve excellent radiation resistance, low The effect of density and simple preparation process

Inactive Publication Date: 2020-01-21
HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the hardness of the TC4 titanium alloy substrate is low (HRC30), the strength is low (900MPa), and the wear resistance and dimensional stability are not satisfactory.

Method used

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  • High-performance zirconium-titanium binary alloy and preparation method thereof

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Effect test

Embodiment 1

[0018] Industrial-grade zirconium sponge and titanium sponge are used for batching according to the atomic ratio of 55:45. After the surface is treated to remove scale, it is cleaned with ultrasonic waves and dried with a hair dryer. Mix the raw materials evenly and place them in a non-consumable electric arc furnace protected by an argon atmosphere, and turn over and smelt them 5 times for 6 minutes each time to ensure sufficient smelting to obtain an alloy ingot with a uniform composition. The smelted alloy ingot is put into a tube furnace, filled with argon gas for protection, kept at 900°C for 4 hours, and cooled with the furnace to make the composition of the alloy ingot more uniform. Put the zirconium-titanium alloy ingot that has been homogenized and annealed into a box-type resistance furnace, heat it to 700°C, keep it at this temperature for 40 minutes, and then quickly transfer the alloy ingot to a twin-roll mill for multi-pass rolling deformation . After the first ...

Embodiment 2

[0020] Industrial-grade zirconium sponge and titanium sponge are used for ingredients according to the atomic ratio of 65:35. After the surface is treated to remove scale, it is cleaned with ultrasonic waves and dried with a hair dryer. Mix the raw materials evenly and put them into a non-consumable electric arc furnace protected by an argon atmosphere, and turn over and smelt them 5 times, each time for 8 minutes, to ensure sufficient smelting to obtain alloy ingots with uniform composition. The smelted alloy ingot is put into a tube furnace, filled with argon for protection, kept at 1100°C for 4 hours, and cooled with the furnace to make the composition of the alloy ingot more uniform. Put the zirconium-titanium alloy ingot that has been homogenized and annealed into a box-type resistance furnace, heat it to 900°C, keep it at this temperature for 40 minutes, and then quickly transfer the alloy ingot to a twin-roll mill for multi-pass rolling deformation . After the first ro...

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Abstract

The invention discloses a high-performance zirconium-titanium binary alloy and a preparation method of the high-performance zirconium-titanium binary alloy. The zirconium-titanium binary alloy is composed of, by atomic percentage, 55-65% of zirconium and 35-45% of titanium. The preparation method of the high-performance zirconium-titanium binary alloy comprises the following steps that the raw materials are uniformly mixed according to atomic percentage and then the raw materials are put in a non-consumable smelting furnace for smelting, wherein a smelting furnace is filled with argon as a protective atmosphere; the repeatedly smelted ingot is subjected to high-temperature homogenization treatment, and then the ingot is subjected to multi-pass rolling deformation after being heated in a box-type resistance furnace until the deformation amount of the alloy ingot reaches 70%; after the last pass of rolling deformation, the obtained alloy sheet is placed in the atmosphere and cooled to room temperature; and the surface of the alloy sheet cooled to room temperature is subjected to peeling and acid pickling, and the final zirconium-titanium binary alloy is obtained after surface grinding. By the adoption of the high-performance zirconium-titanium binary alloy and the preparation method, the tensile strength of the high-performance zirconium-titanium binary alloy reaches more than 1,052, the elongation can reach more than 7%, compared with the prior art, the high-performance zirconium-titanium binary alloy reaches better comprehensive mechanical properties, and meanwhile, high-performance zirconium-titanium binary alloy has the beneficial effects of low density, good corrosion resistance and the like.

Description

technical field [0001] The invention discloses a high-performance novel zirconium-titanium alloy and a preparation method thereof, belonging to the field of new material preparation. Background technique [0002] In aerospace and other fields, alloy steel is the most widely used in the construction of space activities. The main types of alloy steel used are stainless steel, GCr15, 20CrMnTi and so on. Although alloy steel has been used in practical applications for a long time and the material system is relatively mature, it has a large thermal expansion coefficient, poor dimensional stability, poor low temperature resistance, high density, low specific strength, and due to the atomic oxygen in the space, Radiation and other factors, the service life is generally lower than expected. As a result, the active space components fail in advance, causing mechanical failure of the spacecraft, and affecting the service life of the spacecraft. At present, the main substitute materi...

Claims

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Application Information

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IPC IPC(8): C22C16/00C22C1/02C22F1/18
CPCC22C1/02C22C16/00C22F1/186
Inventor 周云凯
Owner HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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