Influence of Mn Content and Hot Deformation on Transformation Behavior of C-Mn Steels  

作　　者：LI Long DING Hua DU Lin-xiu WEN Jing-lin SONG Hong-mei ZHANG Pi-jun 

机构地区：[1]School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China [2]State Key Lab of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning, China [3]Technology Center, Baoshan Iron and Steel Group Co. , Shanghai 201900, China

出　　处：《Journal of Iron and Steel Research International》2008年第2期51-55,共5页

基　　金：Item Sponsored by National Natural Science Foundation and Baoshan Iron and Steel Group Co.(50271015)

摘　　要：The hot deformation behaviors and the microstructural evolution of plain C-Mn steels with similar contents of C and Si but different contents of Mn have been investigated by compressive processing using Gleeble-1500 mechanical simulator.Influence of Mn and hot deformation on continuous cooling transformation of steels has been studied.The experimental results showed that deformation in austenite region accelerated transformation process,and the extent is dependent on the hot deformation and cooling conditions.The hot deformation would promote transformation process,but the increase of transformation temperature is dependent on Mn contents.The results have also shown that the effect of deformation on ferrite transformation becomes more obvious with the increase of Mn content at relatively low cooling rate.The hot deformation behaviors and the microstructural evolution of plain C-Mn steels with similar contents of C and Si but different contents of Mn have been investigated by compressive processing using Gleeble-1500 mechanical simulator.Influence of Mn and hot deformation on continuous cooling transformation of steels has been studied.The experimental results showed that deformation in austenite region accelerated transformation process,and the extent is dependent on the hot deformation and cooling conditions.The hot deformation would promote transformation process,but the increase of transformation temperature is dependent on Mn contents.The results have also shown that the effect of deformation on ferrite transformation becomes more obvious with the increase of Mn content at relatively low cooling rate.

关 键 词：C-Mn steel hot deformation cooling rate phase transformation BAINITE 

分 类 号：TG26[金属学及工艺—铸造]