基于氧化物冶金技术的钛/铝脱氧技术应用研究  

Applied research of aluminum and titanium deoxidation based on oxide metallurgy technology

作　　者：尚德礼[1] 李德刚[1] 吕春风[1] 康磊[1] 邓伟[1] 

机构地区：[1]鞍钢股份有限公司技术中心,鞍山114009

出　　处：《北京科技大学学报》2010年第11期1418-1421,1446,共5页Journal of University of Science and Technology Beijing

摘　　要：通过实验分析了钛脱氧的钢液再采用铝终脱氧后钢中夹杂物的形态和成分,并研究了钢的组织形貌和力学性能.结果表明:Al质量分数为0.015%时,钢中仍然存在大量的Ti氧化物,Ti氧化物具有促进针状铁素体形核的能力,从而使组织得到细化,其冲击功比不加铝脱氧钢提高了33%,证明了铝终脱氧的可行性.The morphology and chemical composition of inclusions were analyzed with experiment in molten steel deoxidized by Al after Ti deoxidation;the structures and mechanical properties of this steel were also studied.It is shown that the type of inclusions in the steel is mainly titanium oxide when the mass fraction of aluminum is 0.015%.Titanium oxide could promote the formation of acicular ferrite which refines the microstructure of the steel.Compared with the steel without Al deoxidation,the impact toughness of the steel deoxidized by Al increases by 33%,proving the feasibility of final aluminum deoxidation.

关 键 词：炼钢 针状铁素体 夹杂物 脱氧 

分 类 号：TF703.5[冶金工程—钢铁冶金]