Effect of Cr on steel solidification structure under EMS

摘要：

　　Solidification experiments of Cr steel under linear EMS were conducted to investigate the columnar-to-equiaxed transition(CET).The results are compared with those in carbon steel to clarify effect of Cr content and EMS.The conclusions are as follow: The criterion for dendrite fragmentation under linear EMS is obtained and verified by previous paper,then is considered valid for Cr steel.Investigation is carried out on the relation between the superficial velocity in the bulk flow and critical solid fraction at the time of dendrite fragmentation(CET occurrence).The critical solid fraction is smaller in high Cr case.As a result,the CET occurrence is more difficult in this case.

关键词： Cr steel secondary arm spacing dendrite fragmentation CET solid fraction

作者: Jin Chen Zhi-Jian Su Keiji Nakajima Ji-Cheng He

作者单位: Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education),Northeastern Univer Division of Applied Process Metallurgy,Department of Materials Science and Engineering,Royal Institu

会议类型: 国际会议

会议名称: The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)

会议地点: 北京

会议语种:英文

页码: 1-6

在线出版日期: 2012-10-22（万方平台首次上网日期，不代表论文的发表时间）