Multi-scale ceramic particle mixed high elastic modulus high strength aluminum alloy and preparation method thereof

A technology of ceramic particles and high elasticity, which is applied in the field of multi-scale ceramic particles mixed with high elastic modulus and high strength aluminum alloy and its preparation, can solve the problems of damaging the plasticity of materials, and achieve the effects of cost saving, uniform dispersion and simple operation
CN109554572AActive Publication Date: 2019-04-02JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN UNIV
Publication Date
2019-04-02

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Abstract

The invention discloses a multi-scale ceramic particle mixed high elastic modulus high strength aluminum alloy. The chemical composition and weight percentage of the multi-scale ceramic particle mixedhigh elastic modulus high strength aluminum alloy are as follows: 6.5-10% of Si, 0.3-0.7% of Mg, 2-8% of SiC, 0.1-0.6% of TiCN, AlN and TiB2 and the balance Al. The invention further provides a preparation method of the multi-scale ceramic particle mixed high elastic modulus high strength aluminum alloy, Al powder, Ti powder and BN and B4C powder are subjected to sintering and situ endogenous preparation to generate nano-sized TiCN particles and sub-micron-sized TiB2 and AlN particles, micron SiC ceramic particles are added additionally, and the high elastic modulus high strength aluminum alloy is prepared. The content of TiCN, AlN and TiB2 particles and SiC particles is optimized, the superposition effect of nano-sized ceramic particles and micron-sized ceramic particles in aluminum matrix is achieved, and the mechanical properties of the aluminum alloy are improved.
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Description

technical field

[0001] The invention relates to the field of high-performance aluminum alloy processing and its preparation. More specifically, the invention relates to a high-elastic-modulus, high-strength aluminum alloy mixed with multi-scale ceramic particles and a preparation method thereof. Background technique

[0002] Hypoeutectic Al-Si-Mg alloy is a kind of heat treatable strengthening alloy, which has natural aging ability, high strength and good plasticity. In addition, the alloy has excellent casting performance, good fluidity, small linear shrinkage, low hot cracking tendency, high air tightness and good corrosion resistance. However, with the continuous development of automobiles, rail transit, aerospace, and military fields in recent years, the requirements for the required material properties are also getting higher and higher. In addition to the requirements for light weight of materials, alloy materials are also required to maintain high mechanical properti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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