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A preparation method of directional arrangement tib whiskers reinforced titanium matrix composites

A titanium-based composite material and directional arrangement technology, applied in the field of metal-based composite materials, can solve the problems of not being able to maximize the strengthening effect of TiB whiskers, achieve good interface bonding and coherent relationship, high efficiency, and small diameter Effect

Active Publication Date: 2020-06-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, regulating the arrangement of TiB whiskers by thermal deformation processing cannot maximize the strengthening effect of TiB whiskers.

Method used

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  • A preparation method of directional arrangement tib whiskers reinforced titanium matrix composites
  • A preparation method of directional arrangement tib whiskers reinforced titanium matrix composites
  • A preparation method of directional arrangement tib whiskers reinforced titanium matrix composites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A preparation method for directional arrangement of TiB whiskers reinforced titanium-based composite material, the steps of the method are as follows:

[0054] (1) 0.02g nano-TiB 2 Powder and 19.98g TC4 powder were added to the ball mill tank of SM-QB planetary ball mill, and balls and excess absolute ethanol were added according to the ball-to-material ratio of 2:1; at a speed of 600r / min, ball milled for 0.5h and mixed evenly Obtain the mixed slurry; pour the mixed slurry into a vacuum rotary evaporator, and steam it for 0.2h under the conditions of a rotating speed of 100r / min and a water bath temperature of 80°C, and obtain a mixed powder precursor after the ball milling medium is volatilized; the mixed The powder precursor was placed in an electrothermal constant temperature blast drying oven, and dried at 60° C. for 1 h to obtain a mixed powder.

[0055] Wherein, the grinding ball is composed of a large agate ball and a small agate ball with a mass ratio of 0.1:1...

Embodiment 2

[0081] A preparation method for directional arrangement of TiB whiskers reinforced titanium-based composite material, the steps of the method are as follows:

[0082] (1) 0.09g nano-TiB 2 Powder and 19.91g TC4 powder were added to the ball mill tank of SM-QB planetary ball mill, and balls and excess absolute ethanol were added according to the ball-to-material ratio of 4:1; at a speed of 300r / min, ball milled for 2h, and mixed evenly to obtain Mix the slurry; pour the mixed slurry into a vacuum rotary evaporator, turn the steam at a speed of 40r / min and a water bath temperature of 70°C for 2 hours, and obtain a mixed powder precursor after the ball milling medium is volatilized; put the mixed powder before The body was put into an electric constant temperature blast drying oven, and dried at 30°C for 0.5h to obtain a mixed powder.

[0083] Wherein, the grinding ball is composed of a large agate ball and a small agate ball with a mass ratio of 1:1, the diameter of the large ag...

Embodiment 3

[0109] A preparation method for directional arrangement of TiB whiskers reinforced titanium-based composite material, the steps of the method are as follows:

[0110] (1) 6.00g nano-TiB 2 Powder and 14.00g Ti powder were added to the ball mill tank of SM-QB planetary ball mill, and balls and excess absolute ethanol were added according to the ball-to-material ratio of 10:1; at a speed of 150r / min, ball milled for 5.0h, and mixed evenly Obtain a mixed slurry; pour the mixed slurry into a vacuum rotary evaporator, turn the steam at a speed of 40r / min and a water bath temperature of 70°C for 0.5h, and obtain a mixed powder precursor after the ball milling medium is volatilized; mix the The powder precursor was placed in an electrothermal constant temperature blast drying oven, and dried at 30° C. for 0.5 h to obtain a mixed powder.

[0111] Wherein, the grinding ball is composed of a large agate ball and a small agate ball with a mass ratio of 10:1, the diameter of the large aga...

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Abstract

The invention relates to a preparation method of a directionally-distributed TiB whisker reinforced titanium-based composite material, and belongs to the field of metal-based composite materials. Thepreparation method comprises the following steps that nano TiB2 powder and titanium powder, or nano TiB2 powder and titanium alloy powder are uniformly mixed; sintering treatment is carried out on themixed powder by adopting a discharge plasma system to obtain a composite material block body; and the dried composite material block body is packaged in a quartz tube in a vacuum mode, heat treatmentis carried out in a heat treatment furnace, and then the composite material is obtained by step-by-step cooling. The method can effectively regulate and control the organization evolution of a TiB whisker in the titanium-based composite material, the problem that the orientation regulation and control means of the TiB whisker is single is fully solved, a thermal deformation means is used for regulating and controlling the crystal whisker form, and the crystal whisker length-diameter ratio is greatly reduced and the like.

Description

technical field [0001] The invention relates to a method for preparing a TiB whisker-reinforced titanium-based composite material with directional arrangement, and belongs to the field of metal-based composite materials. Background technique [0002] Titanium and titanium alloys are a kind of melting point of about 1660 ℃, density of about 4.5g / cm 3 The refractory light metal has many advantages such as high strength, corrosion resistance, high temperature resistance, low temperature resistance, non-magnetic and small linear expansion coefficient, and is called "modern metal" and "space metal". At present, titanium and titanium alloys are widely used in aircraft engines, frames, skins, fasteners and landing gear. [0003] However, as the demand for high-performance materials in aviation, aerospace and electromechanical fields continues to increase, such as the demand for lightweight, high-strength and high-temperature-resistant materials for supersonic aircraft and next-gen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C1/05C22C14/00C22C32/00C22F1/18C22F1/02
CPCC22C1/0458C22C1/05C22C14/00C22C32/0073C22F1/02C22F1/183
Inventor 张朝晖胡正阳程兴旺王富耻宋奇尹世攀王浩王虎
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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