Raw Data of "Selective laser melting of a Fe-Si-Cr-B-C-based complex-shaped amorphous soft-magnetic electric motor rotor with record dimensions"

This data set includes the RAW DATA of the publication. ABSTRACT: A record large amorphous rotor bearing an intricate 3D-geometry is produced through additive manufacturing via selecting laser melting using a powder of a traditional bulk metallic glass-forming composition of the Fe-Si-Cr-B-C system. Not only does this technique overcome the technical limitations characteristic of casting processes for amorphous alloys, but the possibility to print complex 3D geometries is expected to greatly facilitate the channeling of the magnetic flux, when such component is used as a rotor in an electric machine. The as-built part is characterized in comparison to the powder material as well as as-spun ribbons using a wide range of complementary techniques, including synchrotron x-ray diffraction, calorimetry, electron microscopy as well as room temperature ferromagnetic and hardness testing. The built part has extraordinarily high values of hardness (877 HV) and remarkable high magnetic susceptibility (9.17). This latter feature leads to a better magnetic response in the presence of an external magnetic field evidenced by a faster approach to saturation. The coercivity is small (0.51 kA/M) and the magnetic saturation relatively high (1.29 T). In addition, a large anisotropic effect on the magnetization reaction in connection with the partial crystallization in the melt pool areas is investigated experimentally.

本数据集包含该学术出版物的原始数据。
摘要：本研究采用Fe-Si-Cr-B-C体系传统块体金属玻璃（bulk metallic glass）成形合金粉末，通过选区激光熔化（selective laser melting）增材制造工艺，制备出带有复杂三维几何结构的创纪录超大尺寸非晶转子。该工艺不仅克服了非晶合金铸造工艺固有的技术局限，且当该构件用作电机转子时，可通过打印复杂三维几何结构极大优化磁通量导通效率。本研究采用多种互补表征技术对成形态构件进行表征，并与原始粉末及速凝薄带（as-spun ribbons）进行对比，表征手段包括同步辐射X射线衍射（synchrotron X-ray diffraction）、量热分析、电子显微分析，以及室温铁磁性能与硬度测试。该成形态构件具有极高的硬度（877 HV）以及优异的磁化率（9.17）。该特性使得试样在外部磁场环境下展现出更优异的磁响应，表现为更快达到磁饱和状态。其矫顽力较低（0.51 kA/m），且饱和磁化强度相对较高（1.29 T）。此外，本研究通过实验探究了熔池区域局部结晶对磁化响应产生的显著各向异性效应。