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

被引：2

作者：

Duan, Kang-jia ^{[1
]}

Zhang, Ling ^{[2
]}

Yuan, Xi-zhi ^{[1
]}

Han, Shan-shan ^{[1
]}

Liu, Yu ^{[3
]}

Huang, Qing-song ^{[1
]}

机构：

[1] Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China

[2] Chongqing Univ, Sch Mat Sci & Engn, Chongqing 400045, Peoples R China

[3] Helmholtz Zentrum Dresden Rossendorf HZDR, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany

来源：

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2015年 / 22卷 / 07期

基金：

中国国家自然科学基金;

关键词：

ultra-low carbon steel; magnetic field; sulfide precipitation; induction levitation; titanium; NONMETALLIC INCLUSION; MECHANICAL-PROPERTIES; FERRITE NUCLEATION; ACICULAR FERRITE; TI; TITANIUM; CARBOSULFIDE; SOLUBILITY; EVOLUTION; MN;

D O I：

10.1007/s12613-015-1126-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

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.

引用

页码：714 / 720

页数：7

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