粉末床熔融中的多金属研究：综述

Yao Liming, Ramesh Aditya, Xiao Zhongmin, Chen Yang, Zhuang Quihui

State Key Laboratory of Robotics and Systems (HIT), Harbin 150000, China.

School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.

Materials (Basel). 2023 Jun 9;16(12):4287. doi: 10.3390/ma16124287.

This article discusses the different forms of powder bed fusion (PBF) techniques, namely laser powder bed fusion (LPBF), electron beam powder bed fusion (EB-PBF) and large-area pulsed laser powder bed fusion (L-APBF). The challenges faced in multimetal additive manufacturing, including material compatibility, porosity, cracks, loss of alloying elements and oxide inclusions, have been extensively discussed. Solutions proposed to overcome these challenges include the optimization of printing parameters, the use of support structures, and post-processing techniques. Future research on metal composites, functionally graded materials, multi-alloy structures and materials with tailored properties are needed to address these challenges and improve the quality and reliability of the final product. The advancement of multimetal additive manufacturing can offer significant benefits for various industries.

本文讨论了粉末床熔融（PBF）技术的不同形式，即激光粉末床熔融（LPBF）、电子束粉末床熔融（EB-PBF）和大面积脉冲激光粉末床熔融（L-APBF）。文中广泛讨论了多金属增材制造面临的挑战，包括材料兼容性、孔隙率、裂纹、合金元素损失和氧化物夹杂。为克服这些挑战而提出的解决方案包括优化打印参数、使用支撑结构和后处理技术。需要对金属复合材料、功能梯度材料、多合金结构和具有定制性能的材料进行未来研究，以应对这些挑战并提高最终产品的质量和可靠性。多金属增材制造的进步可为各个行业带来显著益处。