A kind of Cu-alloyed Ti-8Si alloy and preparation method thereof

An alloying and ti-8si technology, applied in the field of materials, can solve the problems of low overall performance of titanium-silicon alloys, and achieve the effects of excellent economy, simple operation, and improved friction and wear properties

Active Publication Date: 2017-08-29
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that the overall performance of the existing copper-alloyed titanium-silicon alloy is not high, the present invention invents a method for preparing titanium-silicon alloy by "high-energy ball milling-molding molding-vacuum pressureless sintering", and prepares a titanium-silicon alloy by adding the metal element Cu. A titanium alloy material with good comprehensive performance and high content of titanium silicon compound

Method used

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  • A kind of Cu-alloyed Ti-8Si alloy and preparation method thereof
  • A kind of Cu-alloyed Ti-8Si alloy and preparation method thereof
  • A kind of Cu-alloyed Ti-8Si alloy and preparation method thereof

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Effect test

Embodiment 1

[0030] Such as Figure 1~4 shown.

[0031] A preparation method of Cu-alloyed Ti-8Si alloy Ti-7.6Si-5Cu:

[0032] First, prepare 30g of Ti, Si, Cu single substance mixed powder, wherein Ti powder 87.4wt.% (26.22g), Si powder 7.6wt.% (2.28g), Cu powder 5wt.% (1.5g), the mixed powder Place in a beaker and stir well;

[0033] Secondly, first weigh 240g of agate balls and place them in a 500ml nylon ball mill jar according to the ball-to-material ratio of 8:1, then place the weighed and evenly mixed mixed powder in a nylon ball mill jar, and seal it with a cover;

[0034] Then, install the ball mill jar on the planetary ball mill, start the ball mill, the ball mill parameter is set to 300r / min, the ball mill stops for 10 minutes after 30 minutes, and after grinding for 48 hours, take out the powder in the ball mill jar;

[0035] Further, put the mixed powder taken out in a vacuum drying oven, heat it up to 60°C with the drying oven, keep it warm for more than 4 hours, and pass ...

Embodiment 2

[0046] A preparation method of Cu-alloyed Ti-8Si alloy Ti-7.2Si-10Cu:

[0047] First, prepare 30g of Ti, Si, Cu single substance mixed powder, wherein Ti powder 24.84g, Si powder 2.16g, Cu powder 3g), the mixed powder is placed in a beaker and stirred evenly;

[0048] Secondly, first weigh 300g of agate balls and place them in a 500ml nylon ball mill jar according to the ball-to-material ratio of 10:1, then place the weighed and evenly mixed mixed powder in the nylon ball mill jar, and seal it with a cover;

[0049] Then, install the ball milling jar on the planetary ball mill, start ball milling, the ball milling parameter is set to 350r / min, every ball milling 30min stop 10min, after ball milling 50h, take out the powder in the ball milling jar;

[0050] Further, put the mixed powder taken out in a vacuum drying oven, heat the drying oven to at least 60°C for 4 hours, and pass through a 300-mesh sieve to obtain the desired powder;

[0051] After that, the obtained powder is...

Embodiment 3

[0056] A preparation method of Cu-alloyed Ti-8Si alloy Ti-6.4Si-20Cu:

[0057] First, prepare 30g of Ti, Si, Cu simple substance mixed powder, wherein Ti powder 22.08g, Si powder 1.92g, Cu powder 6g), the mixed powder is placed in a beaker and stirred evenly;

[0058] Secondly, first weigh 360g of agate balls and place them in a 500ml nylon ball milling jar according to the ball-to-material ratio of 12:1, then place the weighed and evenly mixed mixed powder in a nylon ball milling jar, cover and seal;

[0059] Then, install the ball milling jar on the planetary ball mill, start ball milling, the ball milling parameter is set to 400r / min, the ball milling is 30min and stop for 10min, after ball milling for 55h, take out the powder in the ball milling jar;

[0060] Further, put the mixed powder taken out in a vacuum drying oven, heat the drying oven to at least 60°C for 4 hours, and pass through a 300-mesh sieve to obtain the desired powder;

[0061] Afterwards, the obtained po...

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Abstract

A copper-alloyed Ti-8Si alloy and a preparation method thereof. The copper-alloyed Ti-8Si alloy is prepared from titanium powder, silicon powder and copper powder. The preparation method includes the steps of: uniformly mixing the titanium powder, silicon powder and copper powder and performing high-energy ball milling to partially alloy the powder material; drying and sieving the ball-milled powder material and compression-molding the dried powder material to form a briquette; and finally performing vacuum pressure-free sintering to completely alloy the briquette. The Ti-(8-0.08x)Si-xCu alloy has uniform surface component, is increased in compactness, microhardness, elasticity modulus, fracture toughness, anti-oxidizing property, corrosion resistance and frictional wear performance at certain degrees, and has a wide application prospect in the fields of aerospace, traffic transportation and weapon equipment.

Description

technical field [0001] The present invention relates to a kind of material technology, especially Cu alloyed Ti-8Si alloy and its preparation method, in particular a titanium-silicon series Cu alloyed Ti-8Si alloy with improved compactness, oxidation resistance and friction and wear performance. 8Si alloy and its preparation method. Background technique [0002] Because titanium alloys have beneficial properties such as high specific strength, high specific stiffness, and corrosion resistance, in the next few decades, my country's large aircraft engineering, ships and future marine development, high-performance engines, new fighters, manned spaceflight projects, There is an increasing demand for titanium alloys in fields such as lunar exploration projects, aviation, supersonic cruise missiles, sea exploration projects, a new generation of armed helicopters, national economic industries, and medical devices that improve people's quality of life. Aerospace is one of the fields...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C1/04
CPCC22C1/0458C22C14/00
Inventor 许晓静吴刘军仲奕颖刘庆辉陈婷卓韩天戈晓岚
Owner JIANGSU UNIV
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