Processed 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 processed data of the pubblication. 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.本数据集包含该发表文献的处理后数据。 摘要：本研究通过选区激光熔化（selective laser melting）增材制造（additive manufacturing）工艺，以Fe-Si-Cr-B-C体系传统大块金属玻璃（bulk metallic glass）形成合金粉末为原料，制备了具有复杂三维几何结构的创纪录大尺寸非晶转子。该工艺不仅解决了非晶合金铸造工艺固有的技术局限，且当该部件作为电机转子使用时，可通过打印复杂三维几何结构极大优化磁通量传导效率。本研究采用同步辐射X射线衍射、量热法、电子显微镜表征以及室温铁磁性能测试、硬度测试等多种互补表征手段，对成形件、原始粉末与熔纺薄带进行了对比表征。该成形件具有极高的硬度（877 HV）以及优异的磁化率（9.17）。这一特性使得该部件在外磁场下具备更优异的磁响应，表现为更快达到磁饱和状态。其矫顽力较低（0.51 kA/m），磁饱和磁感应强度较高（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过程产生的显著各向异性效应。