High-hardness wear-resistance netty structured double-metal titanium base composite material and preparation method thereof

A technology of titanium-based composite materials and network structure, which is applied in the field of high-hardness and wear-resistant network-structured bimetallic titanium-based composite materials and its preparation, can solve the problems affecting the service life and scope of use of titanium-based composite materials, and plastic deformation resistance. The shear ability and surface oxidation resistance are poor, and the bonding ability is different, so as to inhibit the reaction of in-situ self-generated titanium carbide, improve the composite compactness and bonding strength, and increase the hardness.

Active Publication Date: 2019-12-20
西安稀有金属材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low hardness of the titanium matrix of the titanium matrix composite, the difference in the bonding ability between the reinforcement and the titanium matrix, and the poor resistance to plastic deformation and surface oxidation, the wear resistance is poor, which seriously affects the titanium matrix. Service life and scope of use of composite materials

Method used

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  • High-hardness wear-resistance netty structured double-metal titanium base composite material and preparation method thereof
  • High-hardness wear-resistance netty structured double-metal titanium base composite material and preparation method thereof
  • High-hardness wear-resistance netty structured double-metal titanium base composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] In this example, the high-hardness and wear-resistant reticulated bimetallic titanium-based composite material uses CT20 titanium alloy as the matrix, and the intermetallic compound Ti produced by copper and CT20 titanium alloy in situ. 2 The Cu particle phase and copper are uniformly and continuously distributed on the surface of the CT20 titanium alloy substrate in turn in a ring shape, forming a network structure Ti-Cu bimetallic titanium matrix composite material; the average equivalent diameter of the mesh in the network structure is 150 μm.

[0030] The preparation method of the high-hardness and wear-resistant reticulated bimetallic titanium-based composite material in this embodiment includes the following steps:

[0031] Step 1. Selection of powder: Select 100g of spherical CT20 titanium alloy powder with a particle size of 80 mesh to 120 mesh, a Mohs hardness of 6.0, and a sphericity of 0.8 as the matrix powder, and select 100g of a particle size of 120 mesh t...

Embodiment 2

[0041] In this example, the high-hardness and wear-resistant reticulated bimetallic titanium-based composite material uses CT20 titanium alloy as the matrix, and the intermetallic compound Ti produced by copper and CT20 titanium alloy in situ. 2 The Cu particle phase and copper are uniformly and continuously distributed on the surface of the CT20 titanium alloy substrate in turn in a ring shape, forming a network structure Ti-Cu bimetallic titanium matrix composite material; the average equivalent diameter of the mesh in the network structure is 80 μm.

[0042] The preparation method of the high-hardness and wear-resistant reticulated bimetallic titanium-based composite material in this embodiment includes the following steps:

[0043] Step 1. Selection of powder: select 120 g of spherical CT20 titanium alloy powder with a particle size of 150 mesh to 200 mesh, a Mohs hardness of 6.0, and a sphericity of 0.9 as the matrix powder, and select 80 g of a particle size of 150 mesh ...

Embodiment 3

[0050] In this embodiment, the high-hardness and wear-resistant reticulated bimetallic titanium-based composite material uses CT20 titanium alloy as the matrix, and the intermetallic compound Ti formed by nickel and CT20 titanium alloy in situ. 2 The Ni particle phase and nickel are uniformly and continuously distributed on the surface of the CT20 titanium alloy substrate in turn in a ring shape, forming a network structure Ti-Ni bimetallic titanium matrix composite material; the average equivalent diameter of the grid in the network structure is 120 μm.

[0051] The preparation method of the high-hardness and wear-resistant reticulated bimetallic titanium-based composite material in this embodiment includes the following steps:

[0052] Step 1. Selection of powder: select 100 g of spherical CT20 titanium alloy powder with a particle size of 100 mesh to 150 mesh, a Mohs hardness of 6.2, and a sphericity of 1.0 as the matrix powder, and select 50 g of a particle size of 200 mes...

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Abstract

The invention discloses a high-hardness wear-resistance netty structured double-metal titanium base composite material. With titanium or titanium alloys as basal bodies, metal for compounding, intermetallic compound particle phases automatically generated on the titanium or titanium alloy basal bodies in situ, and the metal for compounding are distributed on the surfaces of the titanium or titanium alloy basal bodies in a lantern form in sequence to form the netty structured double-metal titanium base composite material. The invention further discloses a preparation method of the high-hardnesswear-resistance netty structured double-metal titanium base composite material; and in the method, the high-energy ball milling compounding is performed on basal body powder and metal powder for compounding after high-energy ball milling; and then, the sintering is performed. The friction and wear resistance and the hardness of the double-metal titanium base composite material are improved by using an excellent self-lubricating effect of the metal for compounding and a distribution strengthening effect of the intermetallic compound particle phases; and the double-metal titanium base compositepowder is prepared by adopting the high-energy ball milling method without needing cleaning, sensitization and activation of the raw materials, so that the process is simple, the operability is high,and the large-scale industrialization is facilitated.

Description

technical field [0001] The invention belongs to the technical field of metal-based composite material preparation, and in particular relates to a high-hardness wear-resistant mesh-structured double-metal titanium-based composite material and a preparation method thereof. Background technique [0002] With the rapid development of modern science and technology, many industrial fields have put forward higher requirements for the comprehensive performance of materials used. However, traditional single-matrix composite materials, such as titanium-based composite materials, have great limitations in their performance, especially in extreme service environments such as high temperature and high pressure, and often have major defects, which can no longer meet the high toughness of aerospace and other fields , wear resistance and low density requirements. A variety of metal materials with different physical and chemical properties are compounded together by special technology to fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/04
CPCC22C14/00C22C1/0458C22C1/047
Inventor 赵永庆于佳石卢金文董龙龙霍望图张于胜
Owner 西安稀有金属材料研究院有限公司
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