Nowadays, as an emerging technology, additive manufacturing (AM) has received numerous attentions from researchers around the world. The method comprises layer-by-layer manufacturing of products according to the 3D CAD models of the objects. Among other things, AM is capable of producing metal matrix composites (MMCs). Hence, plenty of works in the literature are dedicated to developing different types of MMCs through AM processes. Hence, this paper provides a comprehensive overview on the latest research that has been carried out on the development of the powder-based AM manufactured MMCs from a scientific and technological viewpoint, aimed at highlighting the opportunities and challenges of this innovative manufacturing process. For instance, it is documented that AM is not only able to resolve the reinforcement/matrix bonding issues usually faced with during conventional manufacturing of MMCs, but also it is capable of producing functionally graded composites and geometrically complex objects. Furthermore, it provides the opportunity for a uniform distribution of the reinforcing phase in the metallic matrix and is able to produce composites using refractory metals thanks to the local heat source employed in the method. Despite the aforementioned advantages, there are still some challenges needing more attention from the researchers. Rapid cooling nature of the process, significantly different coefficient of expansion of the matrix and reinforcement, processability, and the lack of suitable parameters and standards for the production of defect-free AM MMCs seem to be among the most important issues to deal with in future works.

如今，作为一种新兴技术，增材制造（AM）已受到世界各地研究人员的广泛关注。该方法包括根据对象的3D CAD模型逐层制造产品。除其他事项外，AM能够生产金属基复合材料（MMC）。因此，大量文献致力于通过AM流程开发不同类型的MMC。因此，本文从科学的角度对粉末状AM制造的MMC的开发进行了最新研究的全面概述，旨在突出这种创新制造工艺的机遇和挑战。例如，据记录，AM不仅能够解决传统MMC制造过程中通常面临的增强/基体粘结问题，而且还能够生产功能渐变的复合材料和几何形状复杂的物体。此外，由于在该方法中采用了局部热源，因此它为增强相在金属基体中的均匀分布提供了机会，并且能够使用难熔金属生产复合材料。尽管具有上述优点，但是仍然存在一些挑战，需要研究人员给予更多的注意。工艺的快速冷却特性，基体的膨胀系数和增强，加工性能，