High-strength titanium alloy and preparation method thereof

A titanium alloy and high-strength technology, which is applied in the field of high-strength titanium alloys and their preparation, can solve the problems of short service life of titanium alloy aviation structures and difficulty in meeting industrial service standards in strength level, and achieve the effect of increasing yield strength and tensile strength.

Pending Publication Date: 2021-10-29
YUNNAN TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a traditional titanium alloy for aerospace structures, its strength level is still difficult to meet the increasingly stringent industrial service standards, resulting in a short service life of titanium alloy aerospace structures and limiting further applications. Therefore, the development of high-strength titanium alloys is a very meaningful work.

Method used

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  • High-strength titanium alloy and preparation method thereof
  • High-strength titanium alloy and preparation method thereof
  • High-strength titanium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1 As shown, the Ti-Al-V-M high-strength titanium alloy of this embodiment, the titanium alloy is composed of the following raw materials by mass percentage: 6% Al, 2% V, 1.5% Mo, 0.5% Zr, The balance is Ti.

[0036] The Ti-Al-V-M high-strength titanium alloy of the present embodiment comprises the following steps:

[0037] (1) Preparation of raw materials

[0038] Prepare materials according to the above components, the purity of the raw materials is higher than 99 wt%, the surface of the above raw materials is polished to remove scale, and then ultrasonically cleaned with acetone and ethanol for 10 minutes, and then accurately weighed according to the mass fraction of each element for alloy melting .

[0039] (2) Alloy melting

[0040] Use a vacuum non-consumable electric arc furnace, place the cleaned raw materials in a water-cooled copper crucible, and place a piece of pure titanium ingot in one of the crucibles, use a mechanical pump to evacuate the ...

Embodiment 2

[0043] like figure 2 As shown, the Ti-Al-V-M high-strength titanium alloy of this embodiment, the titanium alloy is composed of the following raw materials by mass percentage: 6% of Al, 1.5% of V, 1.5% of Mo, 0.5% of Sn, 0.5% Zr, the balance is Ti.

[0044] The Ti-Al-V-M high-strength titanium alloy of the present embodiment comprises the following steps:

[0045] (1) Preparation of raw materials

[0046] Prepare materials according to the above components, and the purity of the raw materials is higher than 99 wt%. The surface of the above raw materials is polished to remove scale, and then ultrasonically cleaned with acetone and ethanol for 15 minutes, and then accurately weighed according to the mass fraction of each element for alloy smelting .

[0047] (2) Alloy melting

[0048]Use a vacuum non-consumable electric arc furnace, place the cleaned raw materials in a water-cooled copper crucible, and place a piece of pure titanium ingot in one of the crucibles, use a mech...

Embodiment 3

[0051] like image 3 As shown, the Ti-Al-V-M high-strength titanium alloy of this embodiment, the titanium alloy is composed of the following raw materials by mass percentage: 6% Al, 2% V, 1% Ni, 0.5% Sn, 0.5% Zr, the balance is Ti.

[0052] The Ti-Al-V-M high-strength titanium alloy of the present embodiment comprises the following steps:

[0053] (1) Preparation of raw materials

[0054] Prepare materials according to the above components, the purity of the raw materials is higher than 99 wt%, the surface of the above raw materials is polished to remove scale, and then ultrasonically cleaned with acetone and ethanol for 6 minutes, and then accurately weighed according to the mass fraction of each element for alloy melting .

[0055] (2) Alloy melting

[0056] Use a vacuum non-consumable electric arc furnace, place the cleaned raw materials in a water-cooled copper crucible, and place a piece of pure titanium ingot in one of the crucibles, use a mechanical pump to evacuat...

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Abstract

The invention provides a high-strength titanium alloy and a preparation method thereof. The high-strength titanium alloy is a Ti-Al-V-M high-strength titanium alloy and is composed of the following raw materials of, in percentage by mass, 5%-6% of Al, 1.0%-2.0% of V, 1%-1.5% of Mo, 0.5%-1.0% of Ni, 0.5%-1.0% of Sn, 0.5%-1.0% of Zr and the balance Ti. Experimental results show that compared with a contrast alloy obtained through the same treatment process, the yield strength of the alloy is improved by 9%-22.43%, and the tensile strength of the alloy is improved by 8.62%-34.71%.

Description

technical field [0001] The invention belongs to the technical field of titanium alloys, and in particular relates to a high-strength titanium alloy and a preparation method thereof. Background technique [0002] Titanium and titanium alloys have excellent comprehensive properties such as high specific strength, corrosion resistance, low temperature resistance, non-magnetic, and good biocompatibility, and are widely used in marine engineering, biomedicine, aerospace, chemical industry, metallurgy, and other fields , is an important strategic metal. [0003] Due to its excellent machinability and mechanical properties, structural titanium alloys are used in the manufacture of high-strength, complex-shaped parts in the aerospace industry, such as wing joint structural parts of aircraft, fuselage and landing gear connection frames, hangers, etc. Engine joints and other parts, as well as the production of important or key load-bearing components that require high strength and du...

Claims

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Application Information

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IPC IPC(8): C22C14/00C22C1/02C22B9/20
CPCC22C14/00C22C1/02C22B9/20
Inventor 余堃钟海詹海艺曾翌张浩泽
Owner YUNNAN TITANIUM IND
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