Liu Zengxun, Hu Shuo, Li Meng, Xiao Pengcheng. Analysis of Inclusions in the Surface Layer of IF Steel Slab[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 132-135. doi: 10.7513/j.issn.1004-7638.2017.02.023
Citation:
Liu Zengxun, Hu Shuo, Li Meng, Xiao Pengcheng. Analysis of Inclusions in the Surface Layer of IF Steel Slab[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 132-135. doi: 10.7513/j.issn.1004-7638.2017.02.023
Liu Zengxun, Hu Shuo, Li Meng, Xiao Pengcheng. Analysis of Inclusions in the Surface Layer of IF Steel Slab[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 132-135. doi: 10.7513/j.issn.1004-7638.2017.02.023
Citation:
Liu Zengxun, Hu Shuo, Li Meng, Xiao Pengcheng. Analysis of Inclusions in the Surface Layer of IF Steel Slab[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 132-135. doi: 10.7513/j.issn.1004-7638.2017.02.023
College of Metallurgy & Energy, North China University of Science and Technology, Hebei Province High Quality Steel Continuous Casting Engineering Technology Research Center, Tangshan 063009, Hebei, China
For the variation of inclusions in the surface layer of IF slab,the size,quantity,distribution,composition and source of inclusions were investigated by means of total oxygen and nitrogen content analysis,optical microscopy,scanning electronic microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS).The results show that the amount of inclusions at the position of 3~4 mm from the inner arc surface is the highest,reaching 9.2 per mm2 at 3 mm inner the surface and 8.8 per mm2 at 4 mm inner the surface,while the quantity of inclusions ranges from 5.1 to 6.8 per mm2 in other positions.The distribution of inclusion in the width direction is random.The majority of surface layer inclusions are Al2O3-TiOx and Al2O3 whose size are mainly less than 20 μm,which accounts for 84% of the total amount of inclusions.