High-strength aluminum-base material and preparation method thereof

Abstract

The invention belongs to the technical field of metal materials, and particularly relates to a high-strength aluminum-based material and a preparation method thereof; the aluminum-based material contains the following raw materials in parts by weight: 75-105 pure aluminum, 35-55 aluminum borate, and 5-5 nanometer carbon fiber 25. Composite metal powder 4-15, reinforcing particles 10-30; the present invention effectively enhances the mechanical properties of aluminum-based materials and further enhances the strength of aluminum-based materials. At the same time, the present invention mixes pure aluminum and aluminum borate as a matrix, The reinforcement phase in the form of particles is added in the molten state, so that the two are homogeneously fused, and the strength of the aluminum-based material is further improved.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a high-strength aluminum-based material and a preparation method thereof. Background technique [0002] Composite material is a material with strong vitality that emerges in response to the needs of modern scientific development. It is made by combining two or more compatible materials with different components, properties, and sometimes shapes in a physical way. It is a kind of material that makes full use of the advantages of various materials and endows excellent performance that a single material does not have. The performance of composite materials also has the important feature of designability. Aluminum has many advantages in making composite materials. Features, such as light weight, low density, good plasticity, aluminum matrix composite technology is easy to master, easy to process, etc. In addition, aluminum matrix composite materials have high spec...

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Problems solved by technology

[0003] With the rapid development of aluminum-based composite materials, the application fields are also expanding. They are used in electronics, automobiles, aviation, aerospace, military industry, transportation and other fields. The performance requirements of aluminum-based composite materials are becoming more and more stringent. Among them, strength is an important index for evaluating aluminum-based composite materials, and it is also a rigid index used in various fields. However, the quality of aluminum-based composite materials currently prepared is uneven, and it is difficult to meet the needs of the current market. For example, some prepared aluminum-based materials It contains impurities such as Mn and Cr, which will cause the alloy to form brittle phases and directly reduce the hardness of the aluminum-based material. For example, when preparing composite materials, SiC is added to achieve the purpose of enhancing the strength of the composite material, but with With the increase of the SiC volume fraction, the strength and modulus of the composite material are greatly improved, but the plasticity is significantly reduced. It can be seen that, on the one hand, due to the unscientific treatment of impurities, the material forms a brittle phase and reduces the strength. , or by adding a reinforcing agent to increase the strength, it will damage other properties, which also limits the application of composite materials. In view of this, strength is an important index for evaluating aluminum-based composite materials, and it is also used in various fields. Therefore, when preparing aluminum-based composite materials, while ensuring the integrity of other performance indicators, further improving the strength of aluminum-based materials so that they can be used in various fields is the focus of current research

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