Abstract：The ture stress-strain curves of BNbRE and U71Mn heavy rails from 850 to 1150℃ were measured by one-pass compression tests on Gleeble-1500D. The effects of finishing temperatures and RE on dynamic recrystallization were investigated. The air cooled microstructures after deformation were observed by SEM. The results show that dynamic recrystallization of deforming austenite being rolled can be prohibited significantly by adding RE and the finer spacing of pearlite is obtained. Therefore, fine and uniform microstructures can be obtained at higher finishing temperature by adding RE.
收稿日期: 2011-03-11
出版日期: 2012-06-27
引用本文:
包喜荣，陈林，郭亚鹏. 稀土元素对重轨钢动态再结晶和珠光体片间距的影响[J]. 钢铁, 2012, 47(6): 76-78.
BAO Xi-rong,CHEN Lin,GUO Ya-peng. Effect of RE on Dynamic Recrystallization and Pearlite Spacing of Heavy Rail Steel. Iron and Steel, 2012, 47(6): 76-78.
2012, Vol. 47 
