Effect of an upward magnetic field on nanosized sulfide precipitation in ultra-low carbon steel

被引：0
作者：
Kang-jia Duan
Ling Zhang
Xi-zhi Yuan
Shan-shan Han
Yu Liu
Qing-song Huang
机构：
[1] Sichuan University,School of Chemical Engineering
[2] Chongqing University,School of Materials Science and Engineering
[3] Helmholtz-Zentrum Dresden-Rossendorf (HZDR),Institute of Ion Beam Physics and Materials Research
来源：
International Journal of Minerals, Metallurgy, and Materials | 2015年 / 22卷
关键词：
ultra-low carbon steel; magnetic field; sulfide precipitation; induction levitation; titanium;
D O I：
暂无
中图分类号：
学科分类号：
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 nm remain dispersed in the steel matrix. These findings open a path to the fabrication of clean steel or steel bearing only a nanosized strengthening phase.
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页码：714 / 720
页数：6
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