Laser additive manufacturing (LAM) can produce high-performance and near net shape parts of aluminum matrix composite (AMC) with higher specific strength, better wear resistance and more outstanding physical properties than aluminum alloys, which are widely used in automotive and aerospace fields. This article covers emerging researches on particle-reinforced AMCs fabricated by LAM techniques. The current research status is reviewed from the perspectives of powder preparation, microstructure characterization and mechanical properties. The microstructure evolution of AMCs is discussed in depth and the formation mechanism of in situ phase is analyzed. In addition, different strengthening mechanisms of AMCs are studied in detail. The last part summarizes the merits and demerits of AMCs and proposes the existing problems and future research directions.

与铝合金相比，激光增材制造（LAM）可以生产比铝合金更高的比强度，更好的耐磨性和更出色的物理性能的铝基复合材料（AMC）高性能和接近最终形状的零件，铝合金广泛用于汽车和航空航天领域。本文涵盖了有关通过LAM技术制造的颗粒增强AMC的新兴研究。从粉末制备，微观结构表征和力学性能等方面综述了目前的研究现状。深入探讨了AMCs的微观结构演变及其原位形成机理。相进行分析。此外，详细研究了AMC的不同强化机理。最后一部分总结了AMC的优缺点，提出了存在的问题和未来的研究方向。