脉冲磁致振荡(PMO)技术在ZTM-S2合金工具钢连铸坯生产中的应用  

Application of Pulsed Magneto-oscillation(PMO)Technology to Continuously Cast Billet of ZTM-S2 Alloy Tool Steel

作　　者：曹天一 李莉娟[1] 朱雷敏 豆乃远 殷子豪 陈佳艺 CAO Tianyi;LI Lijuan;ZHU Leimin;DOU Naiyuan;YIN Zihao;CHEN Jiayi(Center for Advanced Solidification Technology (CAST), Shanghai University, Shanghai 200444, China;Technical Center of Zenith Steel Group Co., Ltd., Changzhou Jiangsu 213011, China)

机构地区：[1]上海大学先进凝固技术中心,上海200444 [2]常州中天钢铁集团有限公司技术中心,江苏常州213011

出　　处：《上海金属》2021年第1期87-92,共6页Shanghai Metals

基　　金：高品质轴承钢、齿轮钢等特殊钢的研发及产业化(BA2016087)。

摘　　要：研究了脉冲磁致振荡(pulse magneto-oscillation,PMO)技术在ZTM-S2合金工具钢连铸坯生产中的应用效果。研究表明:经过PMO处理后,ZTM-S2工具钢连铸坯的等轴晶面积分数从原来的22.3%增加到了34.8%,提高了56.1%;其中心碳偏析指数从原来的1.21下降至1.13,降低了6.6%。经过PMO处理后,连铸坯的中心缩孔和元素偏析均有所改善,内在质量明显提高。Effect of application of pulse magneto-oscillation(PMO)technology to the production of ZTM-S2 alloy tool steel continuously cast billet was studied.The research showed that the area fraction of equiaxed grains in the continuously cast billet of ZTM-S2 tool steel increased from 22.3%to 34.8%,producing an increase of 56.1%after PMO treatment,and its central carbon segregation index decreased from 1.21 to 1.13,reducing by 6.6%.After PMO treatment,the central shrinkage and segregation of elements in the continuously cast billet were improved,thus significantly improving its internal quality.

关 键 词：脉冲磁致振荡 连铸坯 均质化 偏析 

分 类 号：TG1[金属学及工艺—金属学]