【作者】 李玉华； 郑建强； 林国强； 刘宏玉；

【Author】 LI Yu-Hua~1,ZHENG Jian-Qiang~1,LIN Guo-Qiang~1,LIU Hong-yu~2 (1.Research and Develop Department of Nanjing Iron and Steel Co.,Ltd.,Nanjing,Jiangsu 210035; 2.College of Science,Wuhan University of Science and Technology,Wuhan 430081,Hubei.)

【机构】 南京钢铁联合有限公司研发中心； 武汉科技大学理学院；

【摘要】 采用光学显微镜、SEM和EPMA分析了帘线钢中钛夹杂物形貌,定性分析了其成分,并运用热力学、凝固偏析及长大动力学理论初步计算得出,在目前南钢80级帘线钢生产条件下,TiN只能在凝固率大于98%的两相区或固相区生成,TiN夹杂的最大尺寸小于7μm。更多还原

【Abstract】 In this paper,feature and composition of titatium inclusions was analysized by using OM、SEM and EPMA.At the same time,The rough calculation results of formation thermody-namics, solidification segregation and growth kinetics of TiN particles show that TiN formation takes place only in two-phase region or solid region which solidification ratio is greater than 98%;the greatest size of precipited TiN particles is less tnanμm. technical requirement of steel cord was introduced.And,at the base of current equipment更多还原