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A preparation method of nano-carbon reinforced titanium matrix composite with strong plasticity matching

A technology of titanium-based composite materials and nano-carbon, which is applied in the field of metal-based composite materials, can solve the problems of difficulty in obtaining uniform and thick metal coatings, industrial production restrictions, and pollution of plating metal waste liquid, so as to reduce high-temperature interface reactions, Improve plasticity, particle reinforcement effect

Active Publication Date: 2020-10-30
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the coating of suitable metal particles on the surface of graphene can slow down the interface reaction, it is difficult to obtain a uniform and thickness-controllable metal coating due to the limitations of the plating process.
On the other hand, due to the unevenness of the plated metal and the serious pollution caused by the improper treatment of the waste liquid, this method is severely limited in industrial production.

Method used

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  • A preparation method of nano-carbon reinforced titanium matrix composite with strong plasticity matching
  • A preparation method of nano-carbon reinforced titanium matrix composite with strong plasticity matching
  • A preparation method of nano-carbon reinforced titanium matrix composite with strong plasticity matching

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment includes the following steps:

[0031]Step 1. Modification of titanium-based powder: 195 g of pure titanium powder with a particle size of 70 μm to 150 μm and 5 g of Cu powder with an average particle size of 48 μm are subjected to high-energy ball milling to obtain metal-modified titanium-based powder; the high-energy ball mill The rotating speed adopted is 500r / min, the time is 3h, and the ball-to-material ratio is 3;

[0032] Step 2. Preparation of nano-carbon-metal modified titanium-based powder: The metal-modified titanium-based powder obtained in step 1 is mixed with 0.6g graphene nanosheets to obtain nano-carbon-metal modified titanium-based powder. ; The rotating speed adopted in the low-energy powder mixing treatment is 150r / min, the time is 3h, and the ball-to-material ratio is 3;

[0033] Step 3, preparation of nano-carbon-reinforced titanium-based composite material: the nano-carbon-metal modified titanium-based powder obtained in step 2 is ...

Embodiment 2

[0045] This embodiment includes the following steps:

[0046] Step 1. Modification of titanium-based powder: 198g of TC4 titanium alloy powder with a particle size of 53 μm to 150 μm and 2 g of Ni powder with a particle size of 75 μm are subjected to high-energy ball milling to obtain a metal-modified titanium-based powder; the high-energy ball milling treatment The rotating speed adopted is 200r / min, the time is 5h, and the ball-to-material ratio is 3;

[0047] Step 2. Preparation of nano-carbon-metal modified titanium-based powder: the metal-modified titanium-based powder obtained in step 1 and 0.6 g of graphene oxide are mixed with low-energy powder to obtain nano-carbon-metal modified titanium-based powder; The rotating speed adopted in the low-energy powder mixing treatment is 50r / min, the time is 10h, and the ball-to-material ratio is 4;

[0048] Step 3, preparation of nano-carbon-reinforced titanium-based composite material: the nano-carbon-metal modified titanium-base...

Embodiment 3

[0056] This embodiment includes the following steps:

[0057] Step 1. Modification of titanium-based powder: 198g of TC4 titanium alloy powder with a particle size of 53 μm to 150 μm and 2 g of Cr powder with a particle size of 100 μm are subjected to high-energy ball milling to obtain metal-modified titanium-based powder; the high-energy ball mill treatment The rotating speed adopted is 300r / min, the time is 2h, and the ball-to-material ratio is 4;

[0058] Step 2. Preparation of nano-carbon-metal modified titanium-based powder: The metal-modified titanium-based powder obtained in step 1 is mixed with 0.6g graphene nanosheets to obtain nano-carbon-metal modified titanium-based powder. ; The rotating speed adopted in the low-energy powder mixing treatment is 100r / min, the time is 8h, and the ball-to-material ratio is 2;

[0059] Step 3, preparation of nano-carbon-reinforced titanium-based composite material: the nano-carbon-metal modified titanium-based powder obtained in ste...

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Abstract

The invention discloses a preparation method of a strength and plasticity matched nano carbon reinforced titanium-based composite material. The preparation method comprises the steps of 1, carrying out high-energy ball milling treatment on titanium-based powder and metal powder to obtain metal modified titanium-based powder; 2, carrying out low-energy powder mixing treatment on the metal modifiedtitanium-based powder and a nano carbon material to obtain nano carbon-metal modified titanium-based powder; and 3, carrying out discharge plasma sintering on the nano carbon-metal modified titanium-based powder to obtain the nano carbon reinforced titanium-based composite material. According to the preparation method, the sheet metal powder is utilized to isolate the titanium-based powder from making contact with the nano carbon, so that the plasticity of the nano carbon reinforced titanium-based composite material is prevented from being damaged; meanwhile, the metal reacts with titanium toproduce nano-phase particles to be separated out and dispersed and distributed in the titanium-based matrix and to cooperate and couple with graphene to reinforce the nano carbon reinforced titanium-based composite material, so that the strength and the plasticity of the nano carbon reinforced titanium-based composite material are improved; and the obtained strength and plasticity matched nano carbon reinforced titanium-based composite material is applicable to the fields of aviation, aerospace and the like.

Description

technical field [0001] The invention belongs to the technical field of metal-based composite materials, and in particular relates to a preparation method of a nano-carbon-reinforced titanium-based composite material with strong plasticity matching. Background technique [0002] With the rapid development of aviation technology, titanium alloys are still the main metal matrix composite materials used in aerospace manufacturing due to their high specific strength, good corrosion resistance, and service at high temperatures. For example, silicon carbide fiber reinforced titanium matrix composites can be used to make compressor blades and so on. However, the interfacial reaction between the reinforcing fiber and the matrix metal in the titanium-based composite material is prone to generate brittle phases, which shortens the service life of the components made of the titanium-based composite material. Especially in service at higher temperature for a long time, the interface rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/04B22F3/105B22F1/00
CPCB22F1/0007B22F3/105B22F9/04B22F2003/1051B22F2009/043
Inventor 董龙龙卢金文霍望图张于胜刘跃李亮黎栋栋
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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