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Method for preparing B4C/Y112 aluminum base composite material semi-solid slurry

A technology of aluminum-based composite materials and semi-solid slurry, which is applied in the field of preparation of semi-solid slurry for B4C/Y112 aluminum-based composite materials, can solve problems such as processing, unfavorable secondary plasticity of composite materials, and unsatisfactory plasticity. Easy to operate, good spheroidizing effect, fine and uniform effect

Inactive Publication Date: 2011-11-02
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with traditional metals, it has higher specific strength, specific stiffness and wear resistance; compared with ceramic materials, it has high toughness and high impact resistance. In recent decades, metal matrix composites (MMCs) Researches on metal matrix composites emerge in endlessly, and major breakthroughs have been made in some research fields, but there is still a long way to go before practical applications. At the same time, although metal matrix composites have high specific strength and specific stiffness, their plasticity is not perfect. Satisfactory, not conducive to secondary plastic processing of composite materials

Method used

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  • Method for preparing B4C/Y112 aluminum base composite material semi-solid slurry
  • Method for preparing B4C/Y112 aluminum base composite material semi-solid slurry
  • Method for preparing B4C/Y112 aluminum base composite material semi-solid slurry

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Embodiment 1

[0013] Such as figure 1 As shown, the Y112 aluminum alloy starts at 595°C with a stirring speed of 500r / min, and stirs for 5 minutes while cooling down to 575°C, and then adds preheated B with a mass fraction of 3wt%. 4 C particles, pouring at 575°C for 5 minutes with isothermal stirring to obtain semi-solid B 4 C / Y112 composite material.

Embodiment 2

[0015] Such as figure 2 As shown, the Y112 aluminum alloy starts at 595°C with a stirring speed of 500r / min, and stirs for 5 minutes while cooling down to 575°C, and then adds preheated B with a mass fraction of 12wt%. 4 C particles, pouring at 575°C for 5 minutes with isothermal stirring to obtain semi-solid B 4 C / Y112 composite material.

[0016] As can be seen from the figure, adopt the B that the present invention obtains 4 C / Y112 aluminum-based composite material has small crystal grains, high roundness, uniform distribution, simple process, safe and reliable, convenient operation, and no three waste pollution.

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Abstract

The invention provides a method for preparing B4C / Y112 aluminum base composite material semi-solid slurry. The method comprises the following steps of: first, putting a matrix material Y112 aluminum alloy ingot into a melting furnace and heating the aluminum alloy ingot to reach the temperature of 630-640 DEG C; refining the aluminum alloy ingot at the temperature; after standing for 20-30 min, cooling the aluminum alloy ingot to reach 595-605 DEG C; pouring liquid aluminum alloy into mechanical stirring equipment by using a pouring pipe; stirring the liquid aluminum alloy for 5-8 min at a speed of 400-600 r / min to reach a set stirring temperature of 565-585 DEG C; adding B4C reinforcing particles; and stirring for 5-8 min at a constant temperature of 565-585 DEG C so as to obtain the B4C / Y112 aluminum base composite material semi-solid slurry. The method for preparing the B4C / Y112 aluminum base composite material semi-solid slurry, provided by the invention, has the advantages of fine and uniform B4C / Y112 semi-solid structures, good nodulizing effect, simple process, safety, reliability, convenience for operation and no pollution of three wastes; and the semi-solid forming requirement is completely satisfied.

Description

technical field [0001] The invention relates to a preparation method of a semi-solid slurry, in particular to a preparation method of a semi-solid slurry of a B4C / Y112 aluminum-based composite material. Background technique [0002] With the rapid development of science and technology, people have higher and higher requirements for materials, which should be both light and high strength. Especially in the field of aerospace, the performance of traditional metal materials can no longer meet the needs of this industry, so metal matrix composites were born. Compared with traditional metals, it has higher specific strength, specific stiffness and wear resistance; compared with ceramic materials, it has high toughness and high impact resistance. In recent decades, metal matrix composites (MMCs) Researches on metal matrix composites emerge in endlessly, and major breakthroughs have been made in some research fields, but there is still a long way to go before practical applicatio...

Claims

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Application Information

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IPC IPC(8): C22C1/10C22C21/00C22C32/00B22D1/00B22D17/00
Inventor 闫洪黄昕闫思聪胡望杰
Owner NANCHANG UNIV
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