Siliconizing Behavior in Surface Nanostructure of Non-Oriented Silicon Steel
MO Cheng-gang1,LIU Gang1,HUANG Pu2,ZUO Liang1
1. Research Academy, Northeastern University, Shenyang 110004, Liaoning, China 2 National Engineering Research Center for Sillicon Steel, Wuhan Iron and Steel Group Co., Wuhan 430080, Hubei, China
Abstract：Nanostructured surface layer was fabricated on a 3% non-grain oriented silicon steel by means of surface mechanical attrition treatment (SMAT), and then a solid powder siliconizing treatment was carried out for the SMAT sample at 550-650℃ for 4h. The microstructural evolution was examined by using transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). Experimental results show that: average grain size of the top surface layer of 3% non-grain oriented silicon steel can be refined to about 10 nm after SMAT, and the thickness of the nanostructured surface layer is about 20μm. After the siliconizing treatment at 550-650℃ for 4h, a compound layer forms on the SMAT sample, its thickness increases from 27 to 150μm with the increment of the siliconizing temperature. The compound layer consists of FeSi and Fe3Si phases, and the FeSi phase was found to increase with the increment of the siliconizing temperature.
收稿日期: 2011-01-04
出版日期: 2012-03-20
引用本文:
莫成刚,刘刚,黄璞,左良. 无取向硅钢表面纳米结构的渗硅行为[J]. 钢铁, 2012, 47(3): 61-64.
MO Cheng-gang1,LIU Gang1,HUANG Pu2,ZUO Liang1. Siliconizing Behavior in Surface Nanostructure of Non-Oriented Silicon Steel. Iron and Steel, 2012, 47(3): 61-64.
2012, Vol. 47 
