A kind of preparation method of high-strength titanium-based composite material

A titanium-based composite material and high-strength technology, which is applied in the field of preparation of high-strength titanium-based composite materials, can solve the problems of poor plasticity and strength, achieve good hardness and tensile strength, excellent performance, and improve plastic toughness.

Active Publication Date: 2022-04-26
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing high-strength titanium-based composite materials, which solves the problems of poor strength and poor plasticity of titanium-based composite materials in the prior art

Method used

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  • A kind of preparation method of high-strength titanium-based composite material
  • A kind of preparation method of high-strength titanium-based composite material
  • A kind of preparation method of high-strength titanium-based composite material

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preparation example Construction

[0025] A method for preparing a high-strength titanium-based composite material of the present invention is specifically implemented according to the following steps:

[0026] Step 1, weigh Ti powder, CrB 2 Powder and Zirconia Balls, CrB 2 The mass fraction ratio of powder to Ti powder is 0.01-0.1:1, the particle size of Ti powder is 20-30μm, CrB 2 Powder particle size is 0.5-1μm, CrB 2 The ratio of the mass of powder to Ti powder and the mass of zirconia balls is 1-3:1, zirconia balls include large balls and small balls, the ratio of large balls to small balls is 3-5:1, and the diameter of large balls is 9-11μm, the ball diameter is 5-6μm, Ti powder, CrB 2 Put the powder and 0.04-0.12wt% vacuum pump oil into the mixing bottle of the three-dimensional vibrating powder mixer and mix for 1-1.5 hours, then add zirconia balls and continue mixing for 2-3 hours. The vibration frequency of the powder mixer during mixing is 30-60Hz , to obtain mixed powder A;

[0027] Step 2. Put...

Embodiment 1

[0031] A method for preparing a high-strength titanium-based composite material, specifically implemented according to the following steps:

[0032] Step 1, mix the original powder

[0033] Prepare the required raw powder, Ti powder with a particle size of 20 μm, and CrB with a particle size of 0.5 μm 2 powder; respectively weigh 56.57gTi powder, 0.36gCrB 2 Powder, and the zirconia balls used, put the weighed powder and zirconia balls for use; The diameter of the ball is 5-6mm; the powder is mixed by a three-dimensional vibration mixer, and the frequency of the three-dimensional vibration mixer is 50HZ. First, pure Ti powder and CrB 2 Add 0.04%-0.12% mass fraction of vacuum pump oil to the powder, put it into a plastic bottle and mix for 1 hour, then put in zirconia balls, and mix for 2 hours to obtain mixed powder A;

[0034] Step 2, press molding

[0035] Put the mixed powder A obtained in step 1 into a mold and press it to form a green body B. During the pressing proce...

Embodiment 2

[0042] A method for preparing a high-strength titanium-based composite material, specifically implemented according to the following steps:

[0043] Step 1, mix the original powder

[0044] Prepare the required raw powder, Ti powder with a particle size of 20 μm, and CrB with a particle size of 0.5 μm 2 powder; respectively weigh 56.47gTi powder, 0.72gCrB 2 Powder, and the zirconia balls used, put the weighed powder and zirconia balls for use; The diameter of the ball is 5-6mm; the powder is mixed by a three-dimensional vibration mixer, and the frequency of the three-dimensional vibration mixer is 50HZ. First, pure Ti powder and CrB 2 Add 0.04%-0.12% mass fraction of vacuum pump oil to the powder, put it into a plastic bottle and mix for 1 hour, then put in zirconia balls, and mix for 2 hours to obtain mixed powder A;

[0045] Step 2, press molding

[0046] Put the mixed powder A obtained in step 1 into a mold for pressing, and press it into a green body B, keep uniform p...

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Abstract

The invention discloses a method for preparing a high-strength titanium-based composite material, specifically, 1. Weigh Ti powder, CrB 2 Powder powder and zirconia balls, put Ti powder and 0.04‑0.12wt% vacuum pump oil into the mixing bottle of the three-dimensional vibrating powder mixer and mix for 1‑1.5h, then add zirconia balls and continue mixing for 2‑3h, while mixing The vibration frequency of the powder machine is 30-60Hz to obtain mixed powder A; 2. Put the mixed powder A obtained in step 1 into a mold for pressing to form a green body B; 3. Use the green body B obtained in step 2 to Sintering in a vacuum rapid hot-pressing sintering furnace to obtain a composite material C; 4. Using a muffle furnace to keep the composite material C obtained in step 3 warm, and then thicken it, and obtain a high-strength titanium-based composite material after cooling. The composite material of the invention has better hardness and tensile strength and more excellent performance.

Description

technical field [0001] The invention belongs to the technical field of metal material preparation and relates to a preparation method of a high-strength titanium-based composite material. Background technique [0002] Titanium is an important structural metal developed in the 1950s. It is mainly used to make aircraft engine compressor components, followed by structural parts of rockets, missiles and high-speed aircraft. Many countries have done a lot of research and development on titanium and titanium alloys, which have been used in many applications. However, with the rapid development of modern science and technology, people have put forward higher performance requirements for materials. The production cost of titanium alloys The shortcomings of high, low stiffness and low hardness greatly limit the scope of use of titanium alloys. [0003] Titanium-based composites refer to composite materials with more superior performance by adding one or more reinforcing phases to pu...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C22C49/11C22C49/14C22C47/14C22C101/22
CPCC22C49/11C22C49/14C22C47/14
Inventor贾磊李宏磊吕振林
OwnerXIAN UNIV OF TECH