Abstract

The poor mechanical and tribological properties limit the higher requirements of aluminum alloys in engineering and industrial applications, which leads to the rapid development of aluminum matrix composites (AMCs). Particulate reinforced AMCs have attracted extensive attention in automobile, electronics and military industries due to their low density, high strength, and excellent wear resistance. However, the interfacial reaction between reinforcements and the Al matrix tends to occur in conventional preparation processes owing to the higher reaction temperatures. The spark plasma sintering (SPS) technique is considered to be an efficient method for the fabrication of metal matrix composites, which can achieve rapid sintering, lower sintering temperatures, and higher densities than conventional fabrication processes. In addition, SPS can produce AMCs with excellent non-porous microstructure, fine grain size, and a strong bonding interface between reinforcement and Al matrix. Therefore, the interfacial reaction is effectively controlled and the structural integrity is maintained, resulting in enhanced strength and ductility. Based on the advantages of particulate reinforced AMCs and the SPS technique, the particulate reinforced AMCs fabricated by SPS have been extensively studied in recent decades, but have not been systematically evaluated. Therefore, this paper reviews the state-of-the-art particulate reinforced AMCs fabricated by SPS, focusing on the microstructure characterization, strengthening mechanisms, and mechanical and physical properties. Furthermore, the future research priorities and challenges of the high-performance particulate reinforced AMCs fabricated by SPS are also prospected.

摘要

较差的力学和摩擦学性能限制了铝合金在工程和工业应用中的更高要求，这导致了铝基复合材料（AMC）的快速发展。颗粒增强AMCs因其密度低、强度高、耐磨性能优异等特点，在汽车、电子、军工等领域受到广泛关注。然而，由于反应温度较高，传统制备工艺中容易发生增强体与铝基体之间的界面反应。放电等离子烧结（SPS）技术被认为是制造金属基复合材料的有效方法，与传统制造工艺相比，它可以实现快速烧结、更低的烧结温度和更高的密度。此外，SPS 可以生产出具有优异的无孔微观结构、细晶粒尺寸以及增强体与铝基体之间牢固的结合界面的 AMC。因此，有效控制界面反应并保持结构完整性，从而提高强度和延展性。基于颗粒增强AMCs和SPS技术的优点，SPS制备的颗粒增强AMCs近几十年来得到了广泛的研究，但尚未得到系统的评价。因此，本文回顾了通过 SPS 制造的最先进的颗粒增强 AMC，重点关注微观结构表征、强化机制以及机械和物理性能。此外，