中文摘要：

融化的正式就职悬浮(ILM ) 精制过程被执行在极端低的碳钢(UCS ) 移开大多数 microsized 包括。Nanosized，球状体塑造了硫化物猛抛仍然保持在 UCS 分散了。在 ILM 过程期间， UCS 是熔融的并且在一个向上的磁场下面被旋转。与 Ti 添加剂的增加，旋转因为，在向上的磁场下面的熔融的钢逐出粒子结果离心，漂浮，并且磁性的力量。磁性的力量在移开 sub-micrometer-sized 粒子起一个关键作用，包的多孔的铝 titanate 镇静氧化铝原子核。因而，硫化物与不到 50 nm 遗体在钢矩阵驱散的尺寸猛抛。这些调查结果打开一条路径到忍受仅仅加强阶段的 nanosized 的干净的钢或钢的制造。

英文摘要：

An induction levitation melting （ILM） refining process is performed to remove most microsized inclusions in ultra-low carbon steel （UCS）. Nanosized, spheroid shaped sulfide precipitates remain dispersed in the UCS. During the ILM process, the UCS is molten and is rotated under an upward magnetic field. With the addition of Ti additives, the spinning molten steel under the upward magnetic field ejects particles because of resultant centrifugal, floating, and magnetic forces. Magnetic force plays a key role in removing sub-micrometer-sized particles, composed of porous aluminum titanate enwrapping alumina nuclei. Consequently, sulfide precipitates with sizes less than 50 nan remain dispersed in the steel matrix. These findings open a path to the fabrication of clean steel or steel bearing only a nanosized strengthen- ing phase.