Surface Defects of Cold-Rolled Ti-IF Steel Sheets due to Non-Metallic Inclusions
Surface defects of the cold-rolled sheets of Ti-IF steel were studied and analyzed. After analyzing surface defects of cold-rolled sheets, such as shelling defects, holes and sliver defects by SEM/EDS, a variety of inclusions were found. In addition, the distribution of macro-inclusions in slabs was analyzed by MIDAS method. The results show the macroscopic inclusion bands of head slabs and normal slabs are in 1/8 slab thickness regions of both inner arc side and outer arc side. The formation process of the defects in the cold-rolled sheets was simulated with an experimental cold-rolling machine for comparison. The results show that there were three kinds of inclusions underneath the surface defects: AI2O3, SiC>2 and particles from slag entrainment, which were the main reason for defect formation during cold rolling.
Ti-IF steel cold-rolled sheet surface defects inclusion
CUIHeng WUHua-jie YUEFeng WU Wei-shuang WANGMin BAOYan-ping CHEN Bin JI Chen-xi
Engineering Research Institute, University of Science and Technology Beijing, Beijing 100083, China Shougang Research Institute of Technology, Beijing 100043, China
国际会议
The 2nd International Symposium on Clean Steel(第二届洁净钢生产技术学术研讨会)
沈阳
英文
335-340
2011-08-23（万方平台首次上网日期，不代表论文的发表时间）