EFFECT OF CERIUM ON BEHAVIOR OF HIGH TEMPERATURE DEFORMATION OF IF STEEL
Effect of rare earth element Ce on behavior of high temperature deformation of IF steel was discussed.Different Ce content in IF steel were heated to 1250℃ for 5 min with a heating rate of 10/s at vacuum conditions,then cooled to 1100℃,1000℃,900℃,800℃for 30s with a cooling rate of 5/s and compressed by 50%with a strain rate of 10-2 s-1 and 1 s-1 by using a Gleeble-1500D thermo-mechanical simulation machine to get the true stress-strain curves.Finally,in order to observe the compressed microstructure compressed sample were cut apart along longitudinal direction of the sheets.Results show that with a low rate of deformation of IF Steel,the dynamic recrystallization is the main softening mechanism,at a high rate of deformation dynamic recovery is the main softening mechanism.Deformation resistance of IF steel with an increasing rare earth Ce content has an inhibitory effect on recrystallization.
rare earth IF steel high temperature deformation microstructure
GAO Fu-bin FAN Jia LI Jian-wen
Technique Center,Handan Iron and steel company,HeBei Iron and steel Group,232 Fuxing Rd,Handan,Hebei,056003,China
国内会议
杭州
英文
663-668
2015-11-11（万方平台首次上网日期，不代表论文的发表时间）