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Novel low-cost high-strength high-plasticity titanium alloy

A low-cost, high-plasticity technology, applied in the field of titanium alloy materials, can solve the problems of low material utilization rate, high price of aluminum-vanadium master alloy, poor cold and hot processing performance, etc., achieve excellent strength and plasticity matching, broad application prospects, The effect of high strength and plasticity

Inactive Publication Date: 2021-07-23
新疆湘润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, TC4 titanium alloy has poor cold and hot processing performance, is difficult to form and is easy to crack, and the material utilization rate is low, and the aluminum vanadium master alloy added to prepare TC4 titanium alloy is expensive, resulting in high production costs of the final product, which limits the use of the alloy. Widespread use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The new low-cost, high-strength and high-plasticity titanium alloy of this embodiment is composed of the following components by weight percentage: Al 4%, V 2%, Fe 2%, Cr 1%, Zr 0.2%, O 0.3%, and the balance is Ti and Avoid impurities.

[0027] The preparation method of the new low-cost, high-strength and high-plasticity titanium alloy of this embodiment is as follows: using sponge titanium, aluminum vanadium master alloy, pure iron, electrolytic chromium, aluminum beans and titanium dioxide as raw materials, according to the design ratio Ti-4Al-2V-2Fe- 1Cr-0.2Zr-0.3O The raw materials are weighed and mixed evenly, and then pressed into electrodes. The electrodes are smelted twice in a vacuum consumable electric arc furnace to obtain alloy ingots. After the alloy ingots are peeled and sawed for risers, Open billet forging at 1150°C on a free forging press, then forging an intermediate billet at 1050°C to make a slab, then hot rolling at 950°C on a hot rolling mill, and ...

Embodiment 2

[0030] The new low-cost, high-strength and high-plasticity titanium alloy of this embodiment is composed of the following components by weight percentage: Al 5%, V 1.5%, Fe 1%, Cr 1%, Zr 0.3%, O 0.28%, and the balance is Ti and not Avoid impurities.

[0031] The preparation method of the new low-cost, high-strength and high-plasticity titanium alloy of this embodiment is: using sponge titanium, aluminum vanadium master alloy, pure iron, electrolytic chromium, aluminum beans and titanium dioxide as raw materials, according to the design ratio Ti-5Al-1.5V-1Fe -1Cr-0.3Zr-0.28O The raw materials are weighed and mixed evenly, and then pressed into electrodes. The electrodes are smelted twice in a vacuum consumable electric arc furnace to obtain alloy ingots. After the alloy ingots are peeled and sawed for risers , Open billet forging at 1120°C on a free forging press, then forge an intermediate billet at 1020°C to make a billet, then hot-roll at 930°C on a hot rolling mill, and the...

Embodiment 3

[0034] The new low-cost, high-strength and high-plasticity titanium alloy of this embodiment is composed of the following components by weight percentage: Al 5.5%, V 1%, Fe 1.5%, Cr 1%, Zr 0.3%, O 0.28%, and the balance is Ti and unavoidable impurities.

[0035] The preparation method of the new low-cost, high-strength and high-plasticity titanium alloy of this embodiment is: using sponge titanium, aluminum vanadium master alloy, pure iron, electrolytic chromium, aluminum beans and titanium dioxide as raw materials, according to the design ratio Ti-5.5Al-1V-1.5 Fe-1Cr-0.3Zr-0.28O The raw materials are weighed and mixed evenly and then pressed into electrodes. The electrodes are smelted twice in a vacuum consumable electric arc furnace to obtain alloy ingots. The alloy ingots are peeled and sawed for risers. Finally, open billet forging at a temperature of 1050°C is carried out on a free forging press, and then a slab is formed by forging an intermediate billet at a temperature...

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Abstract

The invention discloses a novel low-cost high-strength high-plasticity titanium alloy. The titanium alloy comprises the following components, in percentage by weight, of 4% to 6.5% of Al, 0.5% to 2% of V, 0.5% to 2% of Fe, 0.5% to 1% of Cr, 0.1% to 0.5% of Zr, 0.1% to 0.3% of O and the balance Ti and inevitable impurities. Compared with a TC4 titanium alloy widely used in the prior art, the titanium alloy is lower in production cost, better in hot workability, easy to produce, higher in strength and plasticity and suitable for being used in various application fields.

Description

technical field [0001] The invention belongs to the technical field of titanium alloy materials, and in particular relates to a novel low-cost, high-strength and high-plasticity titanium alloy. Background technique [0002] Titanium alloys have excellent properties such as low density, high specific strength, good corrosion resistance, and high temperature resistance, and are widely used in aviation, aerospace, ships, weapons, and chemical industries. Among them, TC4 titanium alloy is the most common and mature application of α+β two-phase titanium alloy, and its consumption accounts for more than 50% of all titanium alloys. However, TC4 titanium alloy has poor cold and hot processing performance, is difficult to form and is easy to crack, and the material utilization rate is low, and the aluminum vanadium master alloy added to prepare TC4 titanium alloy is expensive, resulting in high production costs of the final product, which limits the use of the alloy. widely used. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/03C22F1/18
CPCC22C14/00C22C1/03C22F1/183
Inventor 雷文光王幸运岳旭高文柱季红军赵小龙叶红川同晓乐杨梦迪杨铮
Owner 新疆湘润新材料科技有限公司