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High-strength high-toughness corrosion-resistant zirconium-titanium-vanadium alloy and preparation method thereof

A vanadium alloy and corrosion-resistant technology, applied in the field of high-strength, toughness and corrosion-resistant zirconium-titanium-vanadium alloy and its preparation, can solve problems such as limiting application, reducing alloy corrosion resistance, vanadium element toxicity, etc. The effect of simple processing

Inactive Publication Date: 2021-01-15
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The introduction of V element can greatly improve the mechanical properties of the alloy. Some researchers have greatly improved the ductility of the alloy by introducing vanadium element into Zr, but the vanadium element will precipitate in some phases, reducing the corrosion resistance of the alloy. Vanadium has certain toxicity, which limits its application in biomedical materials

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  • High-strength high-toughness corrosion-resistant zirconium-titanium-vanadium alloy and preparation method thereof
  • High-strength high-toughness corrosion-resistant zirconium-titanium-vanadium alloy and preparation method thereof
  • High-strength high-toughness corrosion-resistant zirconium-titanium-vanadium alloy and preparation method thereof

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[0044] The present invention also provides the present invention provides a high-strength and toughness corrosion-resistant zirconium-titanium-vanadium alloy and a preparation method thereof, comprising the following steps:

[0045] (1) Obtain the as-cast alloy billet after melting the alloy raw material;

[0046] (2) Annealing the as-cast alloy billet obtained in the step (1) to obtain a zirconium-titanium-based alloy with uniform structure, high strength, toughness and corrosion resistance.

[0047] In the invention, the alloy raw material is smelted to obtain the cast alloy billet. In the present invention, there is no special limitation on the type of the alloy raw material, and the alloy raw material well-known to those skilled in the art is used to obtain the titanium alloy with the target composition. In the present invention, the alloy raw materials are industrial-grade sponge zirconium, pure titanium and pure vanadium. In the present invention, there is no special l...

Embodiment 1

[0054] (1) According to the alloy composition Zr 50 Ti 50 (Atomic ratio ingredients), take 13.12g of industrial-grade sponge zirconium and 6.88g of pure titanium, put the raw materials into alcohol beakers respectively, and clean them with an ultrasonic cleaner for 10 minutes to remove surface impurities. After cleaning, mix according to the design ratio ;

[0055] (2) Put the prepared material in the water-cooled copper crucible of the non-consumable vacuum arc melting furnace, close the valve, and pump high vacuum to 3.0~3.5×10 -3 Pa;

[0056] (3) Before arc smelting, fill the electric arc furnace cavity with high-purity argon gas of 0.03MPa-0.05MPa (purity is 99.999%) and then smelt, smelting for 5 minutes each time, repeatedly smelting and turning the ingot five times, Obtain ingot alloy; wherein, the smelting current is 210A / S, pay attention to the change of the barometer value during the smelting process, to prevent air leakage from affecting the quality of the ingot;...

Embodiment 2

[0062] (1) According to the alloy composition Zr 49 Ti 49 V 2 (atomic ratio batching), get 12.92g purity to be industrial-grade sponge zirconium, 6.78g pure titanium and 0.29g pure titanium vanadium, put raw material respectively in the alcohol beaker, clean with ultrasonic cleaner 10 minutes and remove surface impurity, after cleaning, Dosing ingredients according to the design ratio;

[0063] (2) Put the prepared material in the water-cooled copper crucible of the non-consumable vacuum arc melting furnace, close the valve, and pump high vacuum to 3.0~3.5×10 -3 Pa;

[0064] (3) Before the arc ignition smelting, fill the electric arc furnace cavity with high-purity argon gas of 0.03MPa-0.05MPa for smelting, smelting for 5 minutes each time, repeatedly smelting and turning the ingot five times to obtain the ingot alloy; , the smelting current is 210A / S, pay attention to the change of the barometer value during the smelting process to prevent air leakage from affecting the q...

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Abstract

The invention relates to a high-strength high-toughness corrosion-resistant zirconium-titanium-vanadium alloy and a preparation method thereof. The alloy is a zirconium-titanium-vanadium alloy, and the atomic ratios of the three elements are as follows: 45-49 at% of Zr, 45-49 at% of Ti, 2-10 at% of V and the balance of inevitable impurities. The zirconium-titanium-vanadium ternary alloy with the vanadium element content being 6-10 at% shows good plasticity and yield strength, the zirconium-titanium-vanadium ternary alloy with the vanadium element content being 2-4 at% has high microhardness and yield strength, and besides, the zirconium-titanium-vanadium ternary alloy further has the characteristics of being simple in production process, good in corrosion resistance and the like.

Description

technical field [0001] The invention relates to the field of zirconium alloys and titanium alloys, in particular to a high-strength and toughness corrosion-resistant zirconium-titanium-vanadium alloy and a preparation method thereof. Background technique [0002] Based on the needs of aerospace and civilian use, the development of a material with high reliability, long life and low density has become a research hotspot for researchers from all over the world. Since the 1950s, titanium and titanium alloys have been gradually developed and applied to social production practice. [0003] After nearly 70 years of development, titanium and titanium alloys have been widely used in aerospace, petrochemical, marine engineering, biomedical, sports equipment, automobiles and other fields. It can be widely used in various fields mainly because of its high Specific strength, good heat resistance and corrosion resistance, non-toxic and non-magnetic, good biocompatibility and so on. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C16/00C22C1/02C22F1/18C22F1/02
CPCC22C16/00C22C1/02C22F1/186C22F1/02
Inventor 夏超群陈凯丁玉苗齐明星杨泰李强
Owner HEBEI UNIV OF TECH
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