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Preparing method for titanium alloy panel

A titanium alloy and plate technology, applied in the field of titanium alloy plate preparation, can solve the problems of short service life, low plasticity and toughness, high possibility of metallurgical defects, etc., and achieve batch stability improvement, wide processing window and uniform structure Sexual ease of control

Inactive Publication Date: 2016-02-24
WUXI QINGYANG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its composition characteristics are: alloy elements allow a wide range of fluctuations (Al: 5.5%-6.75%), and allowable content of impurities (Fe: 0.3%max, O: 0.2%max, H: 0.015%max); thus bringing Higher potential for metallurgical defects, lower ductility and toughness, and shorter service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a titanium alloy plate is provided, wherein the mass percentage content of each component of the alloy includes: Al4%, Ni1%, Cu0.7%, V0.5%, Bi0.1%, Si0. 1%, In0.07%, Ni0.05%, Pd0.03%, Pr0.03%, Y0.01%, the balance is titanium and unavoidable non-metallic inclusions,

[0023] The method comprises the steps of:

[0024] (1) First prepare the raw materials according to the ratio of the titanium alloy component elements, put the raw materials into the melting furnace for melting, and then pour them into the mold to form alloy ingots, (2) perform homogenization annealing treatment on the above alloy ingots, and then melt them with the furnace Cooling, the homogenization annealing temperature is 1030°C, and the holding time is 16 hours; (3) The initial forging temperature for heating the above-mentioned annealed alloy ingot is 910°C, and the final forging temperature is 810°C. After forging, the alloy ingot At 970°C, heat preservation for 4 hours; (4) h...

Embodiment 2

[0026] A method for preparing a titanium alloy plate is provided, wherein the mass percentage content of each component of the alloy includes: Al5%, Ni2%, Cu0.8%, V0.7%, Bi0.2%, Si0. 2%, In0.09%, Ni0.06%, Pd0.04%, Pr0.04%, Y0.02%, the balance is titanium and unavoidable non-metallic inclusions,

[0027] The method comprises the steps of:

[0028] (1) First prepare the raw materials according to the ratio of the titanium alloy component elements, put the raw materials into the melting furnace for melting, and then pour them into the mold to form alloy ingots, (2) perform homogenization annealing treatment on the above alloy ingots, and then melt them with the furnace Cooling, the homogenization annealing temperature is 1030°C, and the holding time is 16 hours; (3) The initial forging temperature for heating the above-mentioned annealed alloy ingot is 910°C, and the final forging temperature is 810°C. After forging, the alloy ingot At 970°C, heat preservation for 4 hours; (4) h...

Embodiment 3

[0030] A method for preparing a titanium alloy plate is provided, wherein the mass percent content of each component of the alloy includes: Al4.5%, Ni1.5%, Cu0.75%, V0.6%, Bi0.15% %, Si0.15%, In0.08%, Ni0.055%, Pd0.035%, Pr0.035%, Y0.015%, the balance is titanium and unavoidable non-metallic inclusions,

[0031] The method comprises the steps of:

[0032](1) First prepare the raw materials according to the ratio of the titanium alloy component elements, put the raw materials into the melting furnace for melting, and then pour them into the mold to form alloy ingots, (2) perform homogenization annealing treatment on the above alloy ingots, and then melt them with the furnace Cooling, the homogenization annealing temperature is 1030°C, and the holding time is 16 hours; (3) The initial forging temperature for heating the above-mentioned annealed alloy ingot is 910°C, and the final forging temperature is 810°C. After forging, the alloy ingot At 970°C, heat preservation for 4 hour...

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Abstract

The invention relates to a preparing method for a titanium alloy panel. An alloy comprises, by mass percentage, 4%-5% of Al, 1%-2% of Ni, 0.7%-0.8% of Cu, 0.5%-0.7% of V, 0.1%-0.2% of Bi, 0.1%-0.2% of Si, 0.07%-0.09% of In, 0.05%-0.06% of Ni, 0.03%-0.04% of Pd, 0.03%-0.04% of Pr, 0.01%-0.02% of Y and the balance titanium and titanium non-metallic inclusion; and the titanium alloy panel is obtained through ingot casting, annealing treatment, forging, hot rolling, cold rolling, quenching treatment and heat preservation. The intensity of the titanium alloy panel reaches more than 1200 MPa.

Description

technical field [0001] The invention relates to a preparation method of a titanium alloy plate, which belongs to the field of tin-based alloy manufacture. Background technique [0002] Ti-6Al-4V is the most widely used and most mature typical (α+β) two-phase titanium alloy. It has been researched and developed by various countries for nearly 40 years, and has its own alloy grade. Its composition characteristics are: alloy elements allow a wide range of fluctuations (Al: 5.5%-6.75%), and the allowable content of impurities is relatively high (Fe: 0.3%max, O: 0.2%max, H: 0.015%max); thus bringing Higher potential for metallurgical defects, lower ductility and toughness, and shorter service life. For this reason, a few developed countries led by the United States and the United Kingdom have developed corresponding low-gap alloys in the past 20 years, such as the United States UNSR56401, ASTMF468, Grade23, AMS4930, Ti-64ELI, the United Kingdom IMI318ELI, France TA6VELI, etc., w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C14/00
CPCC22C1/02C22C14/00
Inventor 唐靖岚
Owner WUXI QINGYANG MACHINERY MFG
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