Nearly beta-type high-toughness titanium alloy and preparation method thereof

A technology of tough titanium alloy and titanium alloy, which is applied in the field of nearly β-type high-strength and tough titanium alloy and its preparation, can solve the problems of waste of resources and other problems, and achieve the effects of reducing production cycle and cost, efficient coupling strengthening effect, good strength and toughness

Active Publication Date: 2019-06-07
WESTERN TITANIUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of residual waste produced in various production links of TA15 titanium alloy used in aviation and aerospace can only be treated as ordinary waste, resulting in a great waste of resources

Method used

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  • Nearly beta-type high-toughness titanium alloy and preparation method thereof
  • Nearly beta-type high-toughness titanium alloy and preparation method thereof
  • Nearly beta-type high-toughness titanium alloy and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0036] The nearly β-type high-strength and tough titanium alloy of this embodiment is composed of the following mass percentages: Al 5.0%, Zr 1.0%, Mo 3.5%, V 1.4%, Fe 2%, Cr 3%, and the balance is Ti and not Avoid impurities.

[0037] The preparation method of the near β-type high-strength and tough titanium alloy of this embodiment is: fully mix the electrode prepared by the TA15 titanium alloy reclaimed material with aluminum beans, iron nails, metal chromium, 0-grade sponge titanium, and iron-molybdenum intermediate alloy and then press it. The electrodes are assembled and welded to prepare a smelting electrode, wherein the mass percentage of the electrode prepared from the TA15 titanium alloy recycled material in the smelting electrode is 60%, and then undergo three vacuum consumable arc melting to obtain a titanium alloy ingot; the titanium alloy ingot is passed through After mechanical processing and subsequent thermal processing, a titanium alloy rod with a diameter of...

Embodiment 2

[0041] The nearly β-type high-strength and tough titanium alloy of this embodiment is composed of the following mass percentages: Al 4.5%, Zr 1.8%, Mo 4.5%, V 1.2%, Fe 1.5%, Cr 3%, B 0.05%, and the balance For Ti and unavoidable impurities.

[0042] The preparation method of the near β-type high-strength and tough titanium alloy of this embodiment is: fully mix the electrode prepared by the TA15 titanium alloy reclaimed material with aluminum beans, iron nails, metal chromium, boron powder, first-grade sponge titanium, and iron-molybdenum master alloy Afterwards, the pressed electrodes are assembled and welded to prepare smelting electrodes, wherein the mass percentage of electrodes prepared from TA15 titanium alloy recycled materials in the smelting electrodes is 70%, and then undergo three vacuum consumable arc melting to obtain titanium alloy ingots; titanium alloy After the ingot is mechanically processed and followed by thermal processing, it is prepared into a near-β-typ...

Embodiment 3

[0046] The nearly β-type high-strength and tough titanium alloy of this embodiment is composed of the following mass percentages: Al 4.2%, Zr 1.4%, Mo 4.1%, V 1.9%, Fe 2%, Cr 3.5%, B 0.12%, and the balance For Ti and unavoidable impurities.

[0047] The preparation method of the near β-type high-strength and tough titanium alloy in this embodiment is as follows: the electrode prepared from the recycled TA15 titanium alloy is fully mixed with the electrode made of aluminum beans, iron nails, metal chromium, first-grade sponge titanium, and FeMo60B master alloy, and then pressed. Welding is carried out to prepare a smelting electrode, wherein the mass percentage of the electrode prepared from TA15 titanium alloy recycled materials in the smelting electrode is 70%, and then undergoes three vacuum consumable arc melting to obtain a titanium alloy ingot; the titanium alloy ingot is machined After processing and subsequent thermal processing, a near-β-type titanium alloy rod with a ...

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Abstract

The invention discloses a nearly beta-type high-toughness titanium alloy. The nearly beta-type high-toughness titanium alloy comprises the following components in percentage by mass: 4.0%-5.5% of Al,0.8%-1.8% of Zr, 3.0%-4.5% of Mo, 1.0%-2.0% of V, 1.5%-2.5% of Fe, 2.5%-3.5% of Cr, no more than 0.12% of B, and the balance Ti and inevitable impurities. The invention also discloses a preparation method of the nearly beta-type high-toughness titanium alloy. According to the preparation method, a large amount of TA15 recycled material is adopted as a raw material; an Al-Zr system is adopted to reinforce an alpha phase in the titanium alloy, and a Mo-V-Cr-Fe system is adopted to reinforce a beta phase in the titanium alloy, so that the coupling reinforcement effect is enhanced; the titanium alloy has good strength and toughness matching; the aluminum equivalent and the molybdenum equivalent of the titanium alloy are controlled, so that the great strength and toughness of the titanium alloyis ensured; and the TA15 titanium alloy recycled material is used as a raw material, so that the preparation cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of titanium alloys, and in particular relates to a nearly β-type high-strength and tough titanium alloy and a preparation method thereof. Background technique [0002] Titanium has many characteristics: low density, high specific strength, corrosion resistance, wide temperature resistance zone, and good welding performance. It is an ideal structural material and plays an extremely important role in the development of high-tech national defense, weaponry and civilian industries. . Titanium alloys are widely used in military and commercial fields such as aviation, aerospace, ships, weapons, and chemicals, and there is a trend of gradual increase. However, the price of titanium alloy is high, generally 8-10 times that of steel, which seriously affects its application in fields with strict cost control requirements such as weapons, ships and chemicals. To make matters worse, in recent years, the price of alumi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/02C22B9/20
Inventor 侯智敏唐进戴毅邢秋丽贠鹏飞王兴杨佩谢英杰刘华张智李维吴晓东王彦皓王超男康聪华瑶
Owner WESTERN TITANIUM TECH
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