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Preparation method of rare earth oxide reinforced titanium-based composite material

A technology of titanium-based composite materials and rare earth oxides, applied in additive processing, additive manufacturing, metal processing equipment, etc., can solve the problems of poor oxidation resistance of titanium-based alloy materials, and achieve good fluidity, uniform particle size, and sphericity. high effect

Pending Publication Date: 2022-07-19
HEILONGJIANG HEIKE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem of poor oxidation resistance of existing titanium-based alloy materials used for additive manufacturing, and provides a method for preparing rare earth oxide-reinforced titanium-based composite materials

Method used

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  • Preparation method of rare earth oxide reinforced titanium-based composite material

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Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: The preparation method of a rare earth oxide reinforced titanium-based composite material of this embodiment is carried out according to the following steps:

[0020] 1. Screen the titanium alloy powder, and screen out the titanium alloy powder with a particle size of 20-75 microns; the elements in the titanium alloy in atomic percent are: Al: 6.0at%, V: 4.5at%, Fe: 0.3at%, the rest is Ti;

[0021] 2. Mix the sieved titanium alloy powder with the rare earth oxide yttrium oxide, put it into a planetary ball mill, and carry out ball milling and powder mixing under the protection of argon to obtain mixed powder; the material ball used in the ball milling is 6mm in diameter and 10mm steel ball, the ratio of ball to material is 15:1, the mixing time of ball milling is 10 hours, and the mass of yttrium oxide accounts for 1% of the mass of titanium alloy powder;

[0022] 3. Transfer the mixed powder obtained in step 2 to the thermal plasma spheroidizing equipmen...

Embodiment 2

[0027] Embodiment 2: The preparation method of a rare earth oxide reinforced titanium-based composite material of this embodiment is carried out according to the following steps:

[0028] 1. Screen the titanium alloy powder, and screen out the titanium alloy powder with a particle size of 20-75 microns; the elements in the titanium alloy in atomic percent are: Al: 6.0at%, V: 4.5at%, Fe: 0.3at%, the rest is Ti;

[0029] 2. Mix the sieved titanium alloy powder with the rare earth oxide yttrium oxide, put it into a planetary ball mill, and carry out ball milling and powder mixing under the protection of argon to obtain mixed powder; the material ball used in the ball milling is 6mm in diameter And 10mm steel ball, the ratio of ball to material is 15:1, the mixing time of ball milling is 10 hours, and the mass of yttrium oxide accounts for 1.5% of the mass of titanium alloy powder;

[0030] 3. Transfer the mixed powder obtained in step 2 to the thermal plasma spheroidizing equipm...

Embodiment 3

[0035] Embodiment 3: The preparation method of a rare earth oxide reinforced titanium-based composite material of this embodiment is carried out according to the following steps:

[0036] 1. Screen the titanium alloy powder, and screen out the titanium alloy powder with a particle size of 20-75 microns; the elements in the titanium alloy in atomic percent are: Al: 6.0at%, V: 4.5at%, Fe: 0.3at%, the rest is Ti;

[0037] 2. Mix the sieved titanium alloy powder with the rare earth oxide yttrium oxide, put it into a planetary ball mill, and carry out ball milling and powder mixing under the protection of argon to obtain mixed powder; the material ball used in the ball milling is 6mm in diameter and 10mm steel ball, the ratio of ball to material is 15:1, the mixing time of ball milling is 10 hours, and the mass of yttrium oxide accounts for 1% of the mass of titanium alloy powder;

[0038] 3. Transfer the mixed powder obtained in step 2 to the thermal plasma spheroidizing equipmen...

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Abstract

The invention discloses a preparation method of a rare earth oxide reinforced titanium-based composite material, and relates to a preparation method of a titanium-based composite material. The technical problem that an existing titanium-based alloy material for additive manufacturing is poor in oxidation resistance is solved. The preparation method of the rare earth oxide reinforced titanium-based composite material comprises the following steps: mixing titanium alloy powder with the particle size of 20-75 microns and rare earth oxide, and then carrying out ball milling to obtain mixed powder; and then the mixed powder is conveyed into hot plasma spheroidizing equipment, high-purity argon serves as center gas, spheroidizing treatment is conducted, and the rare earth oxide reinforced titanium-based composite material is obtained. The oxygen content of the composite material ranges from 940 ppm to 1050 ppm. And the rare earth oxide reinforced titanium-based composite material is put into selective laser melting 3D printing equipment to be subjected to selective laser melting 3D printing forming, and the titanium alloy component is obtained. The rare earth oxide reinforced titanium-based composite material can be used in the field of additive manufacturing.

Description

technical field [0001] The invention relates to a preparation method of a titanium-based composite material. Background technique [0002] As a strategic metal material, titanium metal has the characteristics of light weight, high strength and corrosion resistance. It is a necessary material for aircraft manufacturing and aerospace industries, and it is also a key material for additive manufacturing. At present, the powder metallurgy method is the most widely used in the preparation of titanium and titanium alloy near-net shaped products with complex shape, uniform structure and high performance. Requirements for the use of precision space structural materials. [0003] Selective laser melting technology is evolved and upgraded from selective laser sintering technology, which belongs to one of metal rapid prototyping technologies. For the laser rapid prototyping technology, there are strict requirements for the metal powder in the consumables. Metal powders for additive m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/14B22F1/065B22F9/04B22F10/28B33Y10/00B33Y70/00C22C14/00
CPCB22F9/14B22F9/04C22C14/00B33Y10/00B33Y70/00B22F10/28B22F2009/043
Inventor 李岩宋美慧张煜李艳春方雪李瑶王艳丽杨娜赵晓庆徐志远
Owner HEILONGJIANG HEIKE TECH CO LTD
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