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Near alpha titanium alloy metal powder material used for additive manufacturing and preparing method thereof

A metal powder and additive manufacturing technology, applied in the field of metal powder materials, can solve problems such as the inability to fully meet the strength requirements of parts, and achieve the effect of eliminating crack defects, eliminating cracking tendency and no metallurgical defects

Active Publication Date: 2019-04-19
XIAN BRIGHT ADDTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a near-alpha titanium alloy metal powder material for additive manufacturing, which solves the problem that the existing near-alpha titanium alloy metal powder cannot fully meet the strength requirements of parts

Method used

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  • Near alpha titanium alloy metal powder material used for additive manufacturing and preparing method thereof
  • Near alpha titanium alloy metal powder material used for additive manufacturing and preparing method thereof

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preparation example Construction

[0023] A method for preparing a near-alpha titanium alloy metal powder material for additive manufacturing, specifically comprising the following steps:

[0024] Step 1, material preparation;

[0025] Specifically, the near-alpha titanium alloy metal powder material is composed of the following components according to the mass percentage: Al 3.1%-6.2%, Zr 1.0%-2.1%, Mo 0.4%-1.8%, V 0.6%-2.3%, Fe0. 2%, Sn 0.1%, C0.1%, N 0.05%, H 0.01%, O 0.13%, unavoidable impurities 0.30%, the balance is Ti, and the sum of the mass percentages of the above components is 100%.

[0026] Step 2, drying the material obtained in step 1 before additive manufacturing;

[0027] The drying process is to keep warm at 100-130°C for 2 hours, and the drying process is carried out in an argon-protected environment;

[0028] Step 3, sieving the dried material in step 2 to remove larger particles and impurities to obtain a fine and uniform powder with a particle size of 10-150 μm, which is a near-alpha tita...

Embodiment 1

[0030] A method for preparing a near-alpha titanium alloy metal powder material for additive manufacturing, specifically comprising the following steps:

[0031] Step 1, material preparation;

[0032] Specifically, the near-alpha titanium alloy metal powder material is composed of the following components according to the mass percentage: Al 3.5%, Zr1.2%, Mo 0.9%, V 1.7%, Fe0.2%, Sn 0.1%, C 0.1%, N 0.05%, H 0.01%, O 0.13%, unavoidable impurities 0.30%, the balance is Ti, and the sum of the mass percentages of the above components is 100%.

[0033] Step 2, drying the material obtained in step 1 before additive manufacturing;

[0034] The drying process is carried out at 100°C for 2 hours, and the drying process is carried out in an argon protection environment;

[0035] Step 3, sieving the dried material in step 2 to remove larger particles and impurities to obtain a fine and uniform powder with a particle size of 15-120 μm, which is a near-alpha titanium alloy metal powder m...

Embodiment 2

[0039] A method for preparing a near-alpha titanium alloy metal powder material for additive manufacturing, specifically comprising the following steps:

[0040] Step 1, material preparation;

[0041] Specifically, the near-alpha titanium alloy metal powder material is composed of the following components in terms of mass percentage: Al 4.1%, Zr1.7%, Mo 0.6%, V 2.1%, Fe0.2%, Sn 0.1%, C 0.1%, N 0.05%, H 0.01%, O 0.13%, unavoidable impurities 0.30%, the balance is Ti, and the sum of the mass percentages of the above components is 100%.

[0042] Step 2, drying the material obtained in step 1 before additive manufacturing;

[0043] The drying process is carried out at 120°C for 2 hours, and the drying process is carried out in an argon protection environment;

[0044] Step 3, sieving the dried material in step 2 to remove larger particles and impurities to obtain a fine and uniform powder with a particle size of 15-120 μm, which is a near-alpha titanium alloy metal powder materi...

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Abstract

The invention discloses a near alpha titanium alloy metal powder material used for additive manufacturing. The powder material comprises, by mass percent, 3.1 to 6.2% of Al, 1.0 to 2.1% of Zr, 0.4 to1.8% of Mo, 0.6 to 2.3% of V, 0.2 of Fe, 0.1% of Sn, 0.1% of C, 0.05% of N, 0.01% of H, 0.13% of O, 0.30% of inevitable impurities and the balance Ti, and the mass percent of the above components is 100%. The invention further discloses a preparing method of the near alpha titanium alloy metal powder material used for additive manufacturing. The method is used for the near alpha titanium alloy metal powder material, and the problem that an existing titanium alloy powder cannot meet the part strength need is solved.

Description

technical field [0001] The invention belongs to the technical field of metal powder materials, and relates to a near-alpha titanium alloy metal powder material used for additive manufacturing, and also relates to a preparation method of the metal powder material. Background technique [0002] Near-α-type titanium alloys have many advantages of both α-type and α+β-type titanium alloys, with medium room temperature and high temperature strength, good thermal stability and welding performance, and low process plasticity. As the main material of aircraft structure, near-alpha titanium alloy is used to manufacture important structural parts with high working temperature and complex stress, such as aircraft bulkheads and wall panels. However, it has narrow forming temperature range, easy local overheating, and required Disadvantages such as large forming loads also bring great difficulties to its plastic forming, while increasing processing costs and prolonging the production cycl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C22C14/00B33Y70/00B33Y40/00
CPCB22F1/0003C22C14/00B33Y40/00B33Y70/00B22F1/14
Inventor 薛蕾赵晓明赵伟王雷张宝宁
Owner XIAN BRIGHT ADDTIVE TECH CO LTD
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