Control of Al_2O_3 inclusions in austenite stainless steel  

作　　者：PAN Shihua REN Ying 

机构地区：[1]Baosteel Stainless Steel Co.,Ltd. [2]School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing

出　　处：《Baosteel Technical Research》2015年第3期41-45,共5页宝钢技术研究（英文版）

摘　　要：In the present study, samples were extensively collected throughout the stainless steel manufacturing process. The three-dimensional morphology of inclusions was revealed by non-aqueous solution electrolysis. The high concentration of aluminum in ferrosilicon caused the increment of [Al]s in steel and Al2 O3 in inclusions, which led to the higher melting temperature of inclusions. It was concluded that the application of low Al ferrosilicon and calcium treatment could prevent the formation of Al2 O3-rich inclusions.In the present study, samples were extensively collected throughout the stainless steel manufacturing process. The three-dimensional morphology of inclusions was revealed by non-aqueous solution electrolysis. The high concentration of aluminum in ferrosilicon caused the increment of [Al]s in steel and Al2 O3 in inclusions, which led to the higher melting temperature of inclusions. It was concluded that the application of low Al ferrosilicon and calcium treatment could prevent the formation of Al2 O3-rich inclusions.

关 键 词：austenite stainless steel INCLUSIONS low Al ferrosilicon calcium treatment 

分 类 号：TF764.1[冶金工程—钢铁冶金]