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A kind of preparation method of high plasticity titanium matrix composite material

A titanium-based composite material and high plasticity technology, which is applied in the field of metal material processing, can solve the problems such as the reduction of plasticity of titanium-based composite materials, and achieve the effects of improving the strength at room temperature and high temperature, weakening the decrease in strength, and overcoming the weakening of high temperature grain boundaries.

Active Publication Date: 2020-10-02
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the proportion of reinforcement increases, the obtained titanium-based composites generally decrease in plasticity, so improving the plasticity of titanium-based composites is one of the current technical bottlenecks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Ball milling and mixing powder

[0033] Weigh the two raw materials TiB2 powder and TA15 particles according to the mass ratio TiB2:TA15=1:100, then weigh the grinding balls according to the mass ratio of ball to material 5:1, and ball mill the two raw materials for 8 hours, so that the TiB2 powder is coated on TA15 The surface layer of the particles is obtained to obtain the preliminary powder I of the TA15 / TiB2 core-shell structure;

[0034] Weigh the two raw materials TiB2 powder and TA2 particles according to the mass ratio TiB2:TA2=1:100, then weigh the grinding ball according to the mass ratio of ball to material 5:1, and ball mill the two raw materials for 8 hours, so that the TiB2 powder is coated on TA2 The surface layer of the particles, the preliminary powder II of the TA2 / TiB2 core-shell structure is obtained;

[0035] 2) Mix the preliminary powder I and the preliminary powder II with a V-type powder mixer at a mass ratio of 1:1 for 8 hours, place the mi...

Embodiment 2

[0038] 1) Ball milling and mixing powder

[0039] Weigh the two raw materials TiB2 powder and TA15 particles according to the mass ratio TiB2:TA15=1.2:100, then weigh the grinding ball according to the mass ratio of ball to material 5:1, and ball mill the two raw materials for 6 hours to make the TiB2 powder coated on TA15 The surface layer of the particles is obtained to obtain the preliminary powder I of the TA15 / TiB2 core-shell structure;

[0040] Weigh the two raw materials TiB2 powder and TA2 particles according to the mass ratio TiB2:TA2=1.2:100, then weigh the grinding ball according to the mass ratio of ball to material 5:1, and ball mill the two raw materials for 6 hours, so that the TiB2 powder is coated on TA2 The surface layer of the particles, the preliminary powder II of the TA2 / TiB2 core-shell structure is obtained;

[0041] 2) Mix the preliminary powder I and the preliminary powder II with a V-shaped powder mixer at a mass ratio of 3:1 for 8 hours, place the m...

Embodiment 3

[0044] 1) Ball milling and mixing powder

[0045] Weigh the two raw materials TiB2 powder and TA15 particles according to the mass ratio TiB2:TA15=0.5:100, then weigh the grinding balls according to the mass ratio of ball to material 3:1, and ball mill the two raw materials for 4 hours, so that the TiB2 powder is coated on TA15 The surface layer of the particles is obtained to obtain the preliminary powder I of the TA15 / TiB2 core-shell structure;

[0046] Weigh the two raw materials TiB2 powder and TA2 particles according to the mass ratio TiB2:TA2=0.5:100, then weigh the grinding ball according to the mass ratio of ball to material 3:1, and ball mill the two raw materials for 4 hours, so that the TiB2 powder is coated on TA2 The surface layer of the particles, the preliminary powder II of the TA2 / TiB2 core-shell structure is obtained;

[0047] 2) Mix the preliminary powder I and the preliminary powder II with a V-type powder mixer at a mass ratio of 10:1 for 4 hours, place t...

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Abstract

The invention belongs to the field of metal material processing, in particular to a method for preparing a high-plasticity titanium-based composite material. The preparation method of the high-plasticity titanium-based composite material of the present invention comprises the following steps: 1) ball milling and powder mixing: ball milling the TiB2 powder and TA15 particles, so that the TiB2 powder is coated on the surface of the TA15 particles to obtain a TA15 / TiB2 core-shell structure Preliminary powder I; TiB2 powder and TA2 particles are ball milled, so that TiB2 powder is coated on the surface of TA2 particles, and preliminary powder II with TA2 / TiB2 core-shell structure is obtained; 2) Preliminary powder I and preliminary powder II Mixing, placing in a mold, protecting with inert gas, hot pressing and sintering, heat preservation, pressure maintaining and cooling to obtain titanium matrix composite material. The preparation method of the high-plasticity titanium-based composite material provided by the invention improves the strength and plasticity of the titanium-based composite material.

Description

technical field [0001] The invention belongs to the field of metal material processing, in particular to a method for preparing a high-plasticity titanium-based composite material. Background technique [0002] Titanium matrix composites have higher specific strength and specific modulus than titanium alloys, have excellent fatigue and creep properties, and overcome the shortcomings of original titanium alloys such as poor wear resistance and high temperature performance. In particular, the structure formed by the reinforcing phase surrounded by the spherical matrix has a better combination of strength and toughness, and theoretically has more excellent strength than ordinary titanium-based composite materials. However, as the proportion of reinforcement increases, the plasticity of the obtained titanium-based composites generally decreases more, so improving the plasticity of titanium-based composites is one of the current technical bottlenecks. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C1/05C22C1/10C22C32/00
CPCC22C1/05C22C14/00C22C32/0073
Inventor 崔国荣陈文振张文丛杨建雷
Owner HARBIN INST OF TECH AT WEIHAI