稀土元素对重轨钢显微组织、强度的影响  

Influence of Rare Earths on the Microstructure and Strength of Heavy Rail Steel

作　　者：刘霞[1] 王晓丽[1,2] 史凤武[3] 焦国利[4] 苏晓云[1] 

机构地区：[1]包头钢铁职业技术学院,内蒙古包头014010 [2]北京科技大学冶金与生态工程学院,北京100083 [3]包钢技术中心,内蒙古包头014010 [4]包钢机制公司,内蒙古包头014010

出　　处：《稀土》2010年第5期92-95,共4页Chinese Rare Earths

摘　　要：利用Gleeble-1500D热模拟试验机,模拟分析了变形量对U71Mn、U71MnRE重轨钢轧制变形组织的影响;研究了RE元素对重轨钢的影响。实验结果表明,在模拟条件下,由于稀土元素的影响,U71MnRE重轨钢较U71Mn重轨钢的显微组织粗大且强度降低。Influence of deformation on distortion organizations of U71Mn and U71MnRE heavy rail steels under different deformation conditions and effect of elements RE on dynamic recrystallization of U71Mn and U71MnRE steels were investigated by Gleeble-1500D thermal simulationma-chine.The experimental results showed that U71MnRE heavy rail steel has coarser microstructure and lower strength than U71Mn heavy rail steel.

关 键 词：重轨钢 显微组织与性能 稀土 

分 类 号：TG142[一般工业技术—材料科学与工程]