M2052 合金能够吸收外部振动能量，实现对机械系统减振降噪。 利用激光粉末床熔融制备 M2052 合金有望满足航空航天精密设备的服役需求。 本研究系统探究了 M2052 合金的基础成形工艺特性，揭示其缺陷形成原因，分析其显微组织和物相组成并在此基础上对拉伸性能进行评价。 结果表明，激光粉末床熔融 M2052 合金成形工艺窗口极窄，欠熔合的产生归因于激光输入能量不足，裂纹的产生与不当的工艺参数组合有关。 沉积态合金呈现出精细的胞状枝晶微观结构及柱状晶生长趋势，具有明显的[100]晶粒取向，并形成了单一 γ-(Mn, Cu)固溶体。 室温拉伸的屈服强度为(345±5) MPa、抗拉强度为(404±2) MPa、伸长率为 5.21%±0.57%，表现出脆性断裂特征，大量微裂纹和孔洞形成是 M2052合金脆性断裂的主要原因。

 M2052 alloys can absorb external vibrational energy, thereby reducing machine system vibration and noise. Theutilization of laser powder bed fusion for the preparation of M2052 alloys holds promise for meeting the servicerequirements of aerospace precision equipment. The fundamental forming process characteristics of the M2052 alloy weresystematically investigated, the factors leading to defect formation were explained, and the microstructure and phasecomposition of the M2052 alloy were analysed. An evaluation of the tensile properties was then conducted on the basis ofthese findings. These results indicate that the process window for the laser powder bed fusion of the M2052 alloy isexceedingly narrow. A lack of fusion occurs because of insufficient laser input energy, whereas the occurrence of cracks isattributed to inappropriate parameter combinations. The as-deposited alloy displays fine cellular dendrites, along with atrend of columnar crystal growth, exhibiting a pronounced [100] grain orientation and forming a single γ-(Mn, Cu) solidsolution phase. The yield strength is (345±5) MPa, the ultimate tensile strength is (404±2) MPa, and the elongation is 5.21%±0.57% at room temperature, demonstrating characteristics of brittle fracture. The primary reasons for M2052 alloybrittle fracture are the formation of numerous microcracks and holes.