Preparation method of high-strength titanium-based composite material

A titanium-based composite material and composite material 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: 2021-09-17
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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  • Preparation method of high-strength titanium-based composite material
  • Preparation method of high-strength titanium-based composite material
  • Preparation method of high-strength titanium-based composite material

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preparation example Construction

[0025] The preparation method of a high intensity titanium-based composite material is implemented in accordance with the following steps:

[0026] Step 1, weigh TI powder, CRB 2 Powdered and zirconia balls, CRB 2 The mass fraction ratio of powder and Ti powder is 0.01-0.1: 1, and the particle size of Ti powder is 20-30 μm, CRB 2 The powder particle size is 0.5-1 μm, CRB 2 The quality of the powder and Ti powder and the ratio of the mass of zirconia balls are 1-3: 1, zirconia balls include big spheres and small balls, big balls and small balls of 3-5: 1, big ball diameter 9-11μm, the pellet diameter is 5-6 μm, Ti powder, CRB 2 Powder and 0.04-0.12 wt% Vacuum pump oil is placed in a mixed bottle of a three-dimensional vibration mixture machine mixed 1-1.5 h, then adding zirconia balls to continue mixing 2-3h, mixing the mixed powder vibration frequency is 30-60 Hz Get a mixed powder a;

[0027] Step 2, the mixed powder A obtained in step 1 is placed in the mold, and the mold is use...

Embodiment 1

[0031] A method of preparing high-intensity titanium-based composites, which is implemented in accordance with the following steps:

[0032] Step 1, mixing the original powder

[0033] Prepare the required original powder, Ti powder having a particle size of 20 μm, a CRB having a particle size of 0.5 μm 2 Powder; weigh 56.57 gti powder, 0.36GCRB 2 Powder, and used zirconia balls, it will be referred to as a good powder and zirconia balls; the ball ratio is 1: 2, the big ball is 3: 1, the big ball is 9-11mm, small The ball diameter is 5-6mm; mixed with a three-dimensional vibration mixture machine, the frequency of the three-dimensional vibration mixer is 50 Hz. First, pure Ti powder and CRB 2 0.04% -0.12% of the vacuum pump oil added to the plastic bottle was mixed in a plastic bottle, and then the zirconia ball was placed, mixed for 2 h, resulting in a mixed powder A;

[0034] Step 2, press molding

[0035] The mixed powder A obtained in step 1 is placed in the mold, pressed into...

Embodiment 2

[0042] The method of preparing a high strength titanium-based composite material, according to the specific embodiment the steps of:

[0043] Step 1, the original powder mixed powder

[0044] Ready desired starting powder, Ti powder particle diameter of 20μm, the particle diameter of 0.5μm CrB 2 Powder; 56.47gTi powder were weighed, 0.72gCrB 2 Powder, zirconia balls, and used, to the weighed powders and zirconia balls put back; Charge Ratio 1: 2, big balls smaller than the balls of 3: 1, a large ball diameter of 9-11mm, small balls having a diameter of 5-6mm; three-dimensional vibration for mixing powder mixed powder, mixed powder of the three-dimensional vibration frequency 50HZ. First, pure Ti powder and CrB 2 0.04% -0.12% of the vacuum pump oil added to the plastic bottle was mixed in a plastic bottle, and then the zirconia ball was placed, mixed for 2 h, resulting in a mixed powder A;

[0045] Step 2, press molding

[0046] The mixed powder A obtained in step 1 is placed in th...

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Abstract

The invention discloses a preparation method of a high-strength titanium-based composite material. The method specifically comprises the following steps of 1, weighing Ti powder, CrB2 powder and zirconium oxide balls, putting the Ti powder and 0.04-0.12wt% of vacuum pump oil into a mixing bottle of a three-dimensional vibration powder mixer, mixing for 1-1.5 hours, then adding the zirconium oxide balls, continuously mixing for 2-3 hours, and controlling the vibration frequency of the powder mixer to be 30-60Hz during mixing, so as to obtain mixed powder A; 2, putting the mixed powder A obtained in the step 1 into a mold and pressing to from a green body B; 3, sintering the green body B obtained in the step 2 by adopting a vacuum rapid hot-pressing sintering furnace to obtain a composite material C; and 4, adopting a muffle furnace for conducting heat preservation on the composite material C obtained in the step 3, then heading, and obtaining the high-strength titanium-based composite material after cooling. The composite material is better in hardness and tensile strength and more excellent in performance.

Description

Technical field [0001] The present invention belongs to the technical field of metal materials, and is related to a method of preparing a high intensity titanium-based composite. Background technique [0002] Titanium is an important structural metal developed in the 1950s, mainly used to make aircraft engine compressor components, followed by a rocket, missile, and high-speed aircraft structural parts. Many countries have made a lot of research and development of titanium and titanium alloys, which have got a lot of applications, but with the rapid development of modern science and technology, people put forward higher performance requirements for materials, and the production costs of titanium alloys The shortcomings such as high, low hardness and low hardness are greatly limited to the range of use of titanium alloys. [0003] The titanium-based composite refers to a composite material having more superior performance by adding one or more enhancements in a pure titanium or ti...

Claims

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Application Information

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Patent Type & AuthorityApplications(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