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Low-cost and high-strength Ti-Zr-Al-F2 alloy

A high-strength, low-cost technology, applied in the field of material science and non-ferrous metals and their alloys, can solve the problems of expensive titanium alloys, and achieve the effects of low price, good plasticity and low cost

Inactive Publication Date: 2015-07-08
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the high price of titanium alloy, its dosage is much less than that of traditional steel, aluminum alloy and other metal materials.

Method used

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  • Low-cost and high-strength Ti-Zr-Al-F2 alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Industrial grade sponge Ti, sponge Zr, pure Al and pure Fe are used for compounding according to the composition 47.5Ti-47.5Zr-4.5Al-0.5Fe (wt%). Melt four times in a non-consumable electric arc furnace to ensure uniform composition. After holding at 750-850°C for 5-7 minutes, it is quickly transferred to a two-bar flat rolling mill for two rolling deformations. After the first rolling deformation, Re-insulate at the above temperature for 3-5 minutes and then carry out the second pass of deformation. The thickness of each pass is reduced by 4-5mm, and finally a plate-shaped sample with a thickness of about 4mm is obtained. The maximum thickness deformation of the total rolling is 65. -75%. After the last rolling pass, the sample is quickly immersed in water at room temperature (about 20°C) to cool, and the sample is taken out after it is completely cooled, and the surface of the rolled alloy sample is peeled and ground to obtain Ti-Zr -Al-Fe alloy sample. Processed in...

Embodiment 2

[0018] Industrial grade sponge Ti, sponge Zr, pure Al and pure Fe are used for compounding according to the composition 47.25Ti-47.25Zr-4.5Al-1.0Fe (wt%). Melt four times in a non-consumable electric arc furnace to ensure uniform composition. After holding at 750-850°C for 5-7 minutes, it is quickly transferred to a two-bar flat rolling mill for two rolling deformations. After the first rolling deformation, Re-insulate at the above temperature for 3-5 minutes and then carry out the second pass of deformation. The thickness of each pass is reduced by 4-5mm, and finally a plate-shaped sample with a thickness of about 4mm is obtained. The maximum thickness deformation of the total rolling is 65. -75%. After the last rolling pass, the sample is quickly immersed in water at room temperature (about 20°C) to cool, and the sample is taken out after it is completely cooled, and the surface of the rolled alloy sample is peeled and ground to obtain Ti-Zr -Al-Fe alloy sample. Processed ...

Embodiment 3

[0020] Industrial grade sponge Ti, sponge Zr, pure Al and pure Fe are used for compounding according to the composition 47.0Ti-47.0Zr-4.5Al-1.5Fe (wt%). Melt four times in a non-consumable electric arc furnace to ensure uniform composition. After holding at 750-850°C for 5-7 minutes, it is quickly transferred to a two-bar flat rolling mill for two rolling deformations. After the first rolling deformation, Re-insulate at the above temperature for 3-5 minutes and then carry out the second pass of deformation. The thickness of each pass is reduced by 4-5mm, and finally a plate-shaped sample with a thickness of about 4mm is obtained. The maximum thickness deformation of the total rolling is 65. -75%. After the last rolling pass, the sample is quickly immersed in water at room temperature (about 20°C) to cool, and the sample is taken out after it is completely cooled, and the surface of the rolled alloy sample is peeled and ground to obtain Ti-Zr -Al-Fe alloy sample. Processed in...

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Abstract

The invention discloses a zirconium titanate alloy which is low in cost and high in strength, relates to a Ti-Zr-Al-F2 serial alloy prepared by using cheap metal elements, and belongs to the technical field of novel materials. The alloy is characterized in that the alloy just contains low-cost Ti, Zr, Al and Fe elements and particularly comprises the following elements in percentage by weight: 4-5% of Al, 0.25-2.5% of Fe and the balance of Ti and Zr (respectively half) and inevitable impurities. The room-temperature tensile mechanical property indexes are as follows: the tensile strength sigmab is 1200-1500MPa, the yield strength sigma0.2 is 700-1350MPa, and the ductility delta is 7-15%. The alloy disclosed by the invention has the characteristics of being low in cost, high in strength, good in plasticity and free of toxic elements.

Description

technical field [0001] The invention relates to the technical fields of material science and non-ferrous metals and their alloys. Specifically, it relates to a low-cost and high-strength Ti-Zr-Al-Fe alloy prepared by using cheap elements. Background technique [0002] Titanium alloy has many excellent properties, such as low density, high specific strength, corrosion resistance, good medium temperature performance, non-magnetic, etc. It is an important metal structural material and is widely used in national defense, aviation, aerospace, racing and other fields. Specifically speaking, the importance of titanium alloys to the development of national defense, aerospace, automobiles and other fields is mainly reflected in the following aspects: ① reduce the structural weight coefficient of aerospace vehicles; ② reduce the weight of weapons and prolong the service life; Thrust-to-weight ratio; ④ Improve the safety and reliability of aerospace vehicles. Therefore, the United St...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C16/00C22C30/00
Inventor 梁顺星尹丽霞刘晓艳郑立允谢海龙
Owner HEBEI UNIV OF ENG
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