Multiphase ceramic hybrid composite reinforced metal matrix composite material and preparation process thereof

A composite material and composite reinforcement technology, used in heat exchange equipment, stators, transmissions, etc., can solve the problems of poor particle uniformity, insufficient reinforcement effect of a single reinforcement phase, and low performance such as modulus, and achieve clean surface and market application. The effect of great potential and simple preparation process

Active Publication Date: 2010-06-23
CHINALCO MATERIALS APPL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a multi-phase ceramic hybrid composite reinforced metal matrix composite material and its preparation process, aiming to effectively sol

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Multiphase ceramic composite hybrid reinforced metal matrix composites are specifically (TiC+TiB 2 +SiC) / ZL108 aluminum matrix composite.

[0027] ZL108 cast aluminum alloy is selected as the base, and the base is melted in the furnace by the common aluminum alloy melting method. After adding CH-T type sodium-free covering agent on the surface of the melt, the temperature is raised to 660-900°C, argon is passed through, and the preheated Al-Ti master alloy and KBF are added. 4 reaction salt and B 4 C prefabricated blocks, the amount added is based on the generation of enhanced phase TiC, TiB 2 The mass percentages of the SiC particles are controlled at 4% and 6%, respectively, and stirred at a speed of 500-2000r / min for 10-20min; The volume percentage of SiC particles is 5%, and the reinforcement phase TiC, TiB 2 , The mass ratio of SiC is 1:1.5:1. Start the stirring system and stir at a speed of 1200r / min for 20 to 30 minutes. After the particles are evenly distri...

Embodiment 2

[0029] Multiphase ceramic composite hybrid reinforced metal matrix composites are specifically (TiC+TiB 2 +SiC) / 2024 aluminum matrix composite.

[0030] 2024 is selected as the matrix, and the matrix is ​​melted by the ordinary aluminum alloy melting method in the melting furnace. After the matrix is ​​melted, the melt is finely modified, slag-removed, and refined. After adding CH-T type sodium-free covering agent on the surface of the melt, the temperature is raised to 660~900°C, argon is passed through, and the preheated Al-Ti master alloy and NaBF are added. 4 Reactive salt and Al-Ti-C prefabricated blocks, the amount added is based on the formation of reinforcement phase TiC, TiB 2 The mass percentages of the SiC particles are controlled at 8% and 10%, respectively, and stirred at a speed of 500-2000r / min for 10-20min; after the reaction is completed, the reaction salt slag is removed, and the stirring and compounding process of the reinforced phase SiC particles is carri...

Embodiment 3

[0032] Multiphase ceramic composite hybrid reinforced metal matrix composites are specifically (TiC+TiB 2 +SiC) / AZ31 magnesium matrix composite.

[0033] AZ31 is selected as the matrix, and the matrix is ​​melted by the ordinary magnesium alloy melting method in the smelting furnace. After the matrix is ​​melted, the melt is refined, slag-blasted, and refined. After adding a covering agent on the surface of the melt, the temperature is raised to 660-900°C, argon is passed through, and the preheated Mg-Ti master alloy and KBF are added. 4 reaction salt and B 4 C prefabricated blocks, the amount added is based on the product TiC, TiB 2 The mass percentages of the SiC particles are controlled at 10% and 20%, respectively, and stirred at a speed of 500-2000r / min for 10-20min; after the reaction is completed and the reaction salt slag is removed, the stirring and compounding process of the reinforced phase SiC particles is carried out in a vacuum furnace, and the control The vol...

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Abstract

The invention relates to a multiphase ceramic hybrid composite reinforced metal matrix composite material and a preparation process thereof, a substrate of the material is aluminum and an alloy thereof and magnesium and the alloy thereof, the hybrid reinforced phase is in-situ TiC and TiB2 and SiC particles added through the vacuum stirring and casting method, the weight percent of the reinforced phase of TiC and TiB2 particles is 4-20% by weight respectively, and the volume percent of SiC particles is 4-25% by volume. The preparation process comprises the following steps: firstly melting a substrate, and carrying out fining, fluxing, refining and degassing on the substrate; introducing argon for protection, then carrying out in-situ reaction and the vacuum stirring and casting composite process, further carrying out vacuum refining and degassing treatment, unloading vacuum, skimming dross and oxide inclusion, standing, and then carrying out casting, thereby preparing the high-performance multiphase ceramic hybrid composite reinforced (TiC+TiB2+SiC)/M(M=Al and the alloy thereof, Mg and the alloy thereof) metal matrix composite material. The preparation process can fully play the complementary role of multiphase hybrid reinforcement and the advantages thereof, thereby significantly improving various performances of the composite material; and the process is simple and easy to realize mass production.

Description

technical field [0001] The invention relates to a metal-matrix composite material and a preparation method, in particular to a multiphase ceramic hybrid composite reinforced metal-matrix composite material and a preparation process thereof. Background technique [0002] Metal matrix composites are an important field in the development and application of modern high-tech science and technology. They not only have the advantages of the matrix, but also have the characteristics produced by the introduction of reinforcement phases, such as high specific strength, high specific stiffness, high specific toughness, high temperature resistance, and properties such as fatigue. Among them, aluminum-based, magnesium-based and titanium-based metal matrix composites are the most studied. This type of material is suitable for the manufacture of new environmentally friendly pistons, cylinders, brake pads and other components, and is also an ideal material for the manufacture of connecting...

Claims

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Application Information

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IPC IPC(8): C22C1/10C22C21/00C22C23/00B22D19/00
Inventor 毛建伟张建平乐永康
Owner CHINALCO MATERIALS APPL RES INST CO LTD
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