激光粉末床熔融技术为中/高熵合金的设计和制备提供了新的工艺途径，激光粉末床熔融特有的快速凝固和反复热循环特性赋予了金属材料兼具元素偏析和高密度位错的胞状组织。 胞状组织影响金属材料变形行为，并最终决定材料力学性能，是增材制造金属材料性能调控的关键。 激光粉末床熔融胞状组织影响位错行为并可触发额外变形机制，与传统制备工艺中/高熵合金相比，展现出高强度塑性协同。 因此，系统综述激光粉末床熔融胞状组织对变形行为的影响机理，对完善增材制造金属材料的性能调控理论及推动其工程应用具有重要意义。

Laser powder bed fusion (LPBF) technology provides a novel processing route for the design and preparation of medium/high-entropy alloys (M/HEAs). The unique rapid solidification and repeated thermal cycling characteristics of LPBF endow the metallic material with a cellular structure featuring both elemental segregation and high-density dislocations. This cellular structure influences the deformation behavior of the metallic material and ultimately affects its mechanical properties, making tailoring the performance of additively manufactured materials key. Compared with conventionally processed M/HEAs, the cellular structure of LPBF affects dislocation behavior and can trigger additional deformation mechanisms, resulting in high strength-ductility synergy. Therefore, systematically reviewing the influence mechanism of the LPBF cellular structure on deformation behavior is highly important for improving the performance control theories of additively manufactured metallic materials and promoting their engineering applications.