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A preparation method of multi-component reinforced high-temperature titanium-based composite material

A titanium-based composite material and high-temperature technology, which is applied in the field of preparation of multi-component reinforced high-temperature titanium-based composite materials, can solve the problems of uneven precipitation of high-temperature titanium alloy silicide, easy growth, and high-temperature performance deterioration, and achieve short holding time , prevent agglomeration and growth, low cost of raw materials

Active Publication Date: 2022-05-24
HARBIN INST OF TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of uneven precipitation of high-temperature titanium alloy silicides and easy growth leading to deterioration of high-temperature performance, and provides a method for preparing multi-component reinforced high-temperature titanium-based composite materials

Method used

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  • A preparation method of multi-component reinforced high-temperature titanium-based composite material
  • A preparation method of multi-component reinforced high-temperature titanium-based composite material
  • A preparation method of multi-component reinforced high-temperature titanium-based composite material

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specific Embodiment approach 1

[0043] Embodiment 1: In this embodiment, a method for preparing a multi-element reinforced high-temperature titanium-based composite material is specifically carried out according to the following steps:

[0044] 1. Ultrasonic cleaning of titanium rods, high-purity aluminum and high-purity tin in alcohol and drying;

[0045] 2. According to the element weight percentage: Al is 5% to 6%, Sn is 2% to 5%, Zr is 2% to 8%, Mo is 0.6% to 1.0%, W is ≤1%, Nb is ≤1% , Si is 0.25% to 0.45% and the balance of Ti, weigh sponge titanium, sponge zirconium, high-purity silicon, aluminum-molybdenum master alloy, aluminum-tungsten master alloy, aluminum-niobium master alloy, titanium rod treated in step 1, high-purity Aluminum and high-purity tin;

[0046] According to the volume percentage of the reinforcing phase: TiB is 1% to 2% and TiC is 1% to 2%, and B is weighed 4 C powder and C powder;

[0047] 3. Press the sponge titanium, high-purity aluminum, sponge zirconium, high-purity tin, hi...

specific Embodiment approach 2

[0059] Embodiment 2: This embodiment differs from Embodiment 1 in that the mass content of Mo in the aluminum-molybdenum master alloy described in step 2 is 50.5%, the mass content of W in the aluminum-tungsten master alloy is 57.44%, and the aluminum-niobium master alloy has a mass content of 57.44%. The mass content of Nb in the alloy is 83.15%. Others are the same as the first embodiment.

specific Embodiment approach 3

[0060] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is: in step 2, the reinforcing phase is also added with nano-Y 2 O 3 powder, Y 2 O 3 The volume percentage of ≤0.5. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a preparation method of a multi-component reinforced high-temperature titanium-based composite material, and the invention relates to the field of preparation methods of a multi-component reinforced high-temperature titanium-based composite material. The invention aims to solve the problems that the silicide precipitation of the existing high-temperature titanium alloy is not uniform, and the high-temperature performance is deteriorated due to easy growth. Method: Pretreatment and weighing of raw materials; pressing alloy block, secondary feeding block; preheating; smelting; heat treatment. The present invention strengthens phase TiB, TiC and Y 2 o 3 The homogenization of the silicide achieves the uniform distribution of the silicide, and the reinforcing phase can inhibit the growth of the silicide, thereby further improving the creep resistance of the alloy. The invention is used for preparing multi-component reinforced high-temperature titanium-based composite materials.

Description

technical field [0001] The invention relates to the field of preparation methods of multi-element reinforced high-temperature titanium-based composite materials. Background technique [0002] Titanium matrix composites (TMCs) have high specific strength and high temperature resistance, and have broad application prospects in the fields of aviation, aerospace, and automotive industries. Titanium matrix composites can significantly increase the tensile strength by adding reinforcing phases. However, if the bonding effect between the reinforcement phase and the matrix is ​​poor, the reinforcement phase peels or debonds during the deformation process, and the mechanical properties of the titanium matrix composites are easily deteriorated. Therefore, in the selection of the reinforcement phase, the difference in physical properties between the reinforcement phase and the matrix, especially the difference between the thermal expansion coefficients, is a priority issue. TiB and T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C1/10C21D1/26C22F1/18C22C1/03
CPCC22C14/00C22F1/183C21D1/26C22C1/1036C22C1/1015C22C1/1094C22C1/1052
Inventor 徐丽娟郑云飞梁振泉肖树龙田竟陈玉勇
Owner HARBIN INST OF TECH
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