Preparing method for in-situ synthesis TiC-Ti5Si3 particle reinforcement Ti-based composite material

A titanium-based composite material and particle-reinforced technology, applied in the field of titanium-based composite materials, can solve the problems of low density, high cost, complex process, etc., and achieve the effect of high density and excellent performance

Active Publication Date: 2016-04-06
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to solve the problems of serious component segregation, low compactness, low room temperature plasticity and high temperature strength, complicated process, high energy consumption and high cost of existing titanium-based composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In this embodiment, Ti-6.2Al-3Sn-4Zr-0.8Nb-2Mo is reinforced with TiC-Ti5Si3 particles, and TiC-Ti5Si3 accounts for 10% of the total mass.

[0016] Calculate and prepare titanium sponge, pure aluminum block, titanium powder, silicon carbide powder, pure tin, zirconium sponge, aluminum-niobium master alloy and aluminum-molybdenum master alloy. The molar ratio of titanium powder to silicon carbide powder is 6:1, and the titanium powder with a particle size of 45 μm and the silicon carbide powder with a particle size of 5 μm are weighed for mechanical mixing. The mixing time is 5 hours, and the ball-to-material ratio is 10:1. A mixed powder of titanium powder and silicon carbide powder mixed uniformly.

[0017] First, put 40% of the weighed amount of titanium sponge into the yttrium oxide ceramic crucible, and then sequentially load 50% of the weighed amount of pure tin, sponge zirconium, aluminum-niobium master alloy and aluminum-molybdenum master alloy, and 10% of the we...

Embodiment 2

[0021] In this example, Ti-5Al-2Sn-3Zr-1Nb-0.8Mo is reinforced with TiC-Ti5Si3 particles, and TiC-Ti5Si3 accounts for 12% of the total mass.

[0022] Calculate and prepare titanium sponge, pure aluminum block, titanium powder, silicon carbide powder, pure tin, zirconium sponge, aluminum-niobium master alloy and aluminum-molybdenum master alloy. The molar ratio of titanium powder to silicon carbide powder is 8:1. Weigh titanium powder with a particle size of 30 μm and silicon carbide powder with a particle size of 0.5 μm for mechanical mixing. The mixing time is 5 hours, and the ball-to-material ratio is 15:1. A mixed powder of uniformly mixed titanium powder and silicon carbide powder is obtained.

[0023] First, put 50% of the weighed amount of titanium sponge into the yttrium oxide ceramic crucible, then sequentially load 40% of the weighed amount of pure tin, sponge zirconium, aluminum-niobium master alloy and aluminum-molybdenum master alloy, and 15% of the weighed amount ...

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Abstract

The invention relates to the field of Ti-based composite materials, in particular to a preparing method for an in-situ synthesis TiC-Ti5Si3 particle reinforcement Ti-based composite material. The preparing method includes the specific steps that firstly, materials are weighed; secondly, mixed powder of Ti powder and SiC powder is prepared; thirdly, loading is conducted; and fourthly, vacuum induction melting is conducted, and the in-situ synthesis TiC-Ti5Si3 particle reinforcement Ti-based composite material is obtained after cooling. According to the preparing method, the in-situ synthesis Ti-based composite material high in performance can be prepared by adjusting the content of reinforcement phases and components of a titanium alloy base body, and secondary molding can also be conducted with the combination of the technology of hot forging, hot rolling, hot extruding and the like. The preparing method has the advantages that the technology is simple, cost is low, and industrial production is easy to achieve.

Description

technical field [0001] The invention relates to the field of titanium-based composite materials, in particular to a method for preparing in-situ self-generated TiC-Ti5Si3 particle-reinforced titanium-based composite materials. Background technique [0002] Titanium matrix composites (TMCs) is a new type of lightweight structural material, which has low density, high specific strength, and excellent fatigue and creep properties, and is expected to be used as a structural material in the new generation of aerospace vehicles, main battle tanks and It is widely used in advanced automotive heat-resistant parts. However, the poor plasticity and toughness of titanium-based composites at room temperature, and the low creep resistance at 600 °C limit its practical application. [0003] According to reports, in-situ self-generated particle reinforced titanium matrix composites have the advantages of both titanium alloy and ceramic particles, which is an important method to improve ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C1/10C22C14/00
CPCC22C1/03C22C1/1036C22C14/00C22C1/1052
Inventor 张长江张树志林思波侯赵平陈玉勇
Owner TAIYUAN UNIV OF TECH
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