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TiAl3 particle reinforced aluminum matrix composite material and preparation method and application thereof

A particle-reinforced aluminum and composite material technology, applied in the field of composite material preparation, can solve the problems of poor tensile properties, coarse particles, uneven distribution, etc., and achieve the effect of excellent performance, simple method and simple operation

Active Publication Date: 2019-06-21
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] TiAl prepared against prior art 3 TiAl in / Al composites 3 Due to the disadvantages of coarse particles, uneven distribution, and poor tensile properties caused by a large number of pores in the composite material, the present invention provides a cumulative rolling method combined with hot rolling and hot extrusion to prepare TiAl 3 The method of particle reinforced aluminum matrix composites can effectively improve the microstructure and mechanical properties of materials

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  • TiAl3 particle reinforced aluminum matrix composite material and preparation method and application thereof
  • TiAl3 particle reinforced aluminum matrix composite material and preparation method and application thereof
  • TiAl3 particle reinforced aluminum matrix composite material and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0044] The purity of the aluminum sheet in this embodiment is 99.99%, and the dimensions are: length 125mm, width 25mm, thickness 0.25mm. The average particle size of nano titanium powder is 40nm. Adopt industrial rolling mill, rolling speed is 187mm / min.

[0045] (1) First, 8 pieces of pure aluminum sheets with a size of 125×25×0.25 mm were cut out, and the surfaces were polished and cleaned. Use an analytical balance to weigh the total weight of 8 pure aluminum sheets, after calculation, weigh 10% of the total weight of the 8 pure aluminum sheets to weigh the nano-titanium powder, add the weighed nano-titanium powder to an appropriate amount of ethanol, and use ultrasonic cleaning The instrument makes the nano-titanium powder uniformly mixed in ethanol to obtain the nano-titanium powder-ethanol suspension.

[0046] (2) Pour the nano-titanium powder-ethanol suspension evenly on the surface of 7 pure aluminum sheets, after the ethanol is completely volatilized, keep the 7 pu...

Embodiment 2

[0055] The purity of the aluminum sheet in this embodiment is 99.99%, and the dimensions are: length 125mm, width 25mm, thickness 0.25mm. The average particle size of nano titanium powder is 40nm. Adopt industrial rolling mill, rolling speed is 187mm / min.

[0056] (1) First, 8 pieces of pure aluminum sheets with a size of 125×25×0.25 mm were cut out, and the surfaces were polished and cleaned. Use an analytical balance to weigh the total weight of 8 pure aluminum sheets, after calculation, weigh 10% of the total weight of the 8 pure aluminum sheets to weigh the nano-titanium powder, add the weighed nano-titanium powder to an appropriate amount of ethanol, and use ultrasonic cleaning The instrument makes the nano-titanium powder uniformly mixed in ethanol to obtain the nano-titanium powder-ethanol suspension.

[0057] (2) Pour the nano-titanium powder-ethanol suspension evenly on the surface of 7 pure aluminum sheets, after the ethanol is completely volatilized, keep the 7 pu...

Embodiment 3

[0068] The purity of the aluminum sheet in this embodiment is 99.99%, and the dimensions are: length 125mm, width 25mm, thickness 0.25mm. The average particle size of nano titanium powder is 40nm. Adopt industrial rolling mill, rolling speed is 187mm / min.

[0069] (1) First, 8 pieces of pure aluminum sheets with a size of 125×25×0.25 mm were cut out, and the surfaces were polished and cleaned. Use an analytical balance to weigh the total weight of 8 pure aluminum sheets, after calculation, weigh 10% of the total weight of the 8 pure aluminum sheets to weigh the nano-titanium powder, add the weighed nano-titanium powder to an appropriate amount of ethanol, and use ultrasonic cleaning The instrument makes the nano-titanium powder uniformly mixed in ethanol to obtain the nano-titanium powder-ethanol suspension.

[0070] (2) Pour the nano-titanium powder-ethanol suspension evenly on the surface of 7 pure aluminum sheets, after the ethanol is completely volatilized, keep the 7 pure...

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Abstract

The invention discloses a TiAl3 particle reinforced aluminum matrix composite material and a preparation method and application thereof. The preparation method comprises the following steps that nano-titanium powder is uniformly dispersed in an aluminum matrix through room temperature accumulative roll-bonding, then Ti and Al are hot rolled at a temperature lower than the melting point of aluminumto react to generate dispersed TiAl3 particles so as to obtain the TiAl3 particle reinforced aluminum matrix composite material with good compactness, and finally Al in the sample is extruded out through hot extrusion rolling at a temperature higher than the melting point of aluminum, so that the content of TiAl3 in the sample is remarkably improved, the uniformity of the TiAl3 particles is improved, and the density of the sample is further improved in the hot extrusion rolling process. The TiAl3 particle reinforced aluminum matrix composite material has good hardness and strength, the highest hardness can reach 180 Hv, which is more than 6 times as high as pure aluminum, and the highest tensile strength can reach 455 MPa, which is more than 6 times as high as pure aluminum, thus having good application prospect in the field of light and high-strength structural-functional materials.

Description

technical field [0001] The present invention relates to a kind of TiAl 3 The invention relates to particle-reinforced aluminum-based composite material and its preparation method and application, belonging to the field of composite material preparation. Background technique [0002] With the development of science and technology, the performance of a single material has been difficult to meet the increasing needs of contemporary industry. Composite materials can combine the advantages of each component, so that the material has better comprehensive performance and broaden the application field of the material. Metal matrix composites in composite materials are composite materials based on metal or alloy. With their lightweight structure and excellent electrical and thermal conductivity and wear resistance, they are gradually used in land transportation, electronics, thermal control, aerospace, industry, Many fields such as consumer products stand out and realize commercial...

Claims

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Application Information

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IPC IPC(8): C22C1/04C22F1/04B22F3/18B22F7/04
Inventor 梅青松杨向阳陈峰马烨张高攀梅鑫明惠涵煜李菊英
Owner WUHAN UNIV
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