激光选区熔化-3D打印软磁合金：工艺、性能和前景

SLM-3D Printed Soft Magnetic Alloys: Process, Performance, and Prospects

摘要:

软磁合金因其具有高饱和磁感应强度、低矫顽力和高磁导率等优点，被广泛应用于各种电力电子设备中。在某些应用中，越来越需要复杂形状的组件来提高性能。增材制造技术，特别是选区激光熔化（SLM）技术，已经成为制造复杂形状软磁元件的有效方法。SLM是一种基于激光的增材制造技术，采用高功率密度激光在粉末床内熔化和融合金属粉末。这种方法可以实现快速原型制作、精确的几何控制和多材料设计的集成。本文重点介绍了SLM技术在Fe-Si、Fe-Ni、Fe-Co和非晶合金体系等软磁合金研究中的应用进展。此外，还探讨了SLM在制造过程中的实施方案，并评估了基于SLM制备技术的软磁合金研发相关的机遇和挑战。

Abstract:

Soft magnetic alloys are extensively used in various power electronic devices due to their advantageous properties, including high saturation magnetic induction, low coercivity, and high permeability. In certain applications, complex-shaped components are increasingly required for performance enhancement. Additive manufacturing technique, particularly selective laser melting (SLM), has emerged as an effective method for fabricating such complex-shaped soft magnetic components. SLM, a laser-based additive manufacturing technique, employs high-power-density lasers to melt and fuse metal powders within a powder bed selectively. This approach enables rapid prototyping, precise geometrical control, and the integration of multi-material designs. This review highlights recent advancements in the application of SLM technique for the production of soft magnetic alloys, focusing on Fe-Si, Fe-Ni, Fe-Co, and amorphous alloy systems. Moreover, it explores the implementation of SLM in manufacturing processes and evaluates both the opportunities and challenges associated with SLM-based production of soft magnetic alloys.