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超高强度铝基复合材料研究进展

Research progress on ultra-high strength aluminum matrix composites

  • 摘要: 铝基复合材料具有轻质、高强、高模量的优点,在航空航天、船舶、交通、3C电子等领域得到了较为广泛的应用,但随着科技的不断发展,现有的铝基复合材料已无法满足日益苛刻的使用要求,开发超高强度(屈服强度≥500 MPa)的铝基复合材料迫在眉睫。本文系统总结了国内外先进超高强度铝基复合材料研究进展,介绍了超高强铝基复合材料基体材料选择,分析了增强体的种类、尺度、构型设计对超高强铝基复合材料性能的影响,重点讨论了颗粒增强体材料、晶须增强体材料和高性能纳米碳材料增强体材料的增强性能。通过变形加工和热处理工艺来提高超高强铝基复合材料的性能,总结了传统塑性变形和剧烈塑性变形的优势和不足,探讨了固溶时效热处理工艺对铝基复合材料性能的影响,并展望了超高强铝基复合材料的发展方向及面临的挑战。

     

    Abstract: Aluminum matrix composites have the advantages of being lightweight, high-strength, and high-modulus, and have been widely applied in aerospace, shipbuilding, transportation, 3C electronics, and other fields. However, with the continuous development of science and technology, the existing aluminum matrix composites can no longer meet the increasingly strict application requirements. The development of ultra-high-strength (yield strength≥500 MPa) aluminum matrix composites is extremely urgent. The research progress of the advanced ultra-high-strength aluminum matrix composites was systematically summarized at home and abroad in this paper, the selection of the matrix materials for ultra-high-strength aluminum matrix composites was introduced, the influence of type, size, and configuration design of the reinforcements on the performance of ultra-high-strength aluminum matrix composites was analyzed, and the reinforcing performance of particle reinforcement materials, whisker reinforcement materials, and high-performance carbon nanomaterial reinforcement materials was focused on. The performance of ultra-high-strength aluminum matrix composites was improved by deformation processing and heat treatment processes. The advantages and disadvantages of the traditional plastic deformation and the severe plastic deformation were summarized, the influence of solid solution aging heat treatment on the performance of the aluminum matrix composites was discussed, and the development direction and challenges of the ultra-high-strength aluminum matrix composites were prospected.

     

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