C72DA高碳钢小方坯凝固组织模拟  

Solidification microstructure simulation of C72DA high carbon steel billet

作　　者：白雪松 李曜光 孙彦辉 谢海深[2] 贾建平[2] 王建忠[2] BAI Xuesong;LI Yaoguang;SUN Yanhui;XIE Haishen;JIA Jianping;WANG Jianzhong(Collaborative Innovation Center for Common Technology of Iron and Steel,Beijing University of Science and Technology,Beiing 100083,China;Xuanhua Iron and Steel Group Co.,Ltd.,Zhangjiakou 075100,China)

机构地区：[1]北京科技大学钢铁共性技术协同创新中心,北京100083 [2]宣化钢铁集团有限责任公司,河北张家口075100

出　　处：《炼钢》2020年第4期60-64,共5页Steelmaking

摘　　要：为提高某钢厂C72DA钢内部质量,减少铸坯中心偏析,利用ProCAST软件对铸坯凝固组织进行模拟,并将凝固组织的模拟结果与铸坯的偏析情况进行对比。结果表明铸坯表面到中心碳偏析的变化规律与模拟得出的平均晶粒半径、最大晶粒面积变化规律相似。由此得出可以通过细化晶粒的方法来改善C72DA钢碳偏析。In order to improve the internal quality of C72 DA steel and reduce the center segregation of billet,the solidification structure of billet was simulated by Pro CAST software,and the simulation results of solidification structure were compared with that of billet segregation. The results show that the variation of carbon segregation from billet surface to center is similar to that of average grain radius and maximum grain area obtained by simulation. It is concluded that carbon segregation can be improved by grain refinement.

关 键 词：高碳钢 小方坯 凝固组织模拟 碳偏析 

分 类 号：TF777.1[冶金工程—钢铁冶金]