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A micro-nano double-scale particle reinforced titanium matrix composite material and its preparation method

A titanium-based composite material and particle reinforcement technology, applied in the field of titanium-based composite materials, can solve the problems of low room temperature plasticity and high temperature strength, low compactness, complex process, etc., and achieve the effects of low cost, uniform particles and simple process

Inactive Publication Date: 2017-08-29
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: how to solve the problems of low density, low room temperature plasticity and high temperature strength, complex process, high energy consumption and high cost of existing titanium-based composite materials

Method used

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  • A micro-nano double-scale particle reinforced titanium matrix composite material and its preparation method
  • A micro-nano double-scale particle reinforced titanium matrix composite material and its preparation method

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Embodiment Construction

[0015] In this embodiment, (TiB+Y 2 o 3 ) / Ti-6Al-4Sn-10Zr-1Mo-1Nb-1W-0.3Si titanium-based composite material example for illustration, wherein in the composite material, according to weight percentage composition: 6% Al, 4% Sn, 10% Zr, 1% Mo, 1% Nb, 1% W, 0.3% Si, 2.2% TiB 2 , 1% of Y 2 o 3 , the balance is Ti and unavoidable impurity elements, according to volume percentage: 4% TiB, 1% Y 2 o 3 (In this composite material, B exists in the form of TiB, but for the convenience of calculation, TiB is converted into TiB 2 , because B in the raw material is TiB 2 Existing in the form of TiB in smelting 2 React with Ti to generate TiB) Other materials account for 95%.

[0016] Its production steps are as follows:

[0017] 1. Calculate and weigh sponge titanium (purity 99.9%), high-purity aluminum block (purity 99.9%), pure tin ingot (purity 99.9%), pure zirconium (purity 99.9%), Al-Mo master alloy (Mo content is 73.01%), Al-Nb master alloy (Nb content is 55.08%), Al-W mast...

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Abstract

The invention relates to the field of titanium-based composite materials, in particular to a micro-nano double-scale particle-reinforced titanium-based composite material and a preparation method thereof. A titanium-based composite material reinforced with micro-nano dual-scale particles, which is composed of 3.0%-7.0% Al, 3%-6% Sn, 8%-12% Zr, and 0.5%-2% Mo according to weight percentage , 0.5%~2% Nb, 0.5%~2% W, 0.1%~1% Si, 1%~4% TiB2, 0.5%~2% Y2O3, the balance is Ti and unavoidable impurities Elements, according to volume percentage: 1%~10% TiB, 0.5%~3% Y2O3. The invention also relates to a manufacturing method. The invention has simple process and low cost, and can prepare micro-nano dual-scale particle-reinforced titanium-based composite material with uniform particle dispersion, fine crystal grains and high strength and toughness.

Description

technical field [0001] The invention relates to the field of titanium-based composite materials, in particular to a micro-nano double-scale particle-reinforced titanium-based composite material and a preparation method thereof. Background technique [0002] Titanium matrix composites (TMCs) is a new type of lightweight structural material, which has low density, high specific strength, high specific stiffness, and excellent fatigue and creep resistance, and is expected to be used in the new generation of aerospace vehicles, main battle tanks And it has been widely used in advanced automotive heat-resistant parts. The research on titanium-based composite materials began in the 1970s. In the mid-1980s, the US space shuttle and overall high-performance turbine engine technology, as well as Europe, Japan and other countries promoted its development. The CermeTi series TiC / Ti-6Al-4V composite materials developed by Dynamet Technology Corporation of the United States are used as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C32/00C22C1/03C22C1/10C22F1/18
CPCC22C1/1036C22C14/00C22C32/0005C22F1/183C22C1/1047
Inventor 张长江张树志曲建平侯赵平
Owner TAIYUAN UNIV OF TECH