Grain Growth Behavior of 5Cr21Mn9Ni4N Steel Micro-Alloyed by Rare Earth  

作　　者：Yu Shichang Wu Shenqing Gong Youjun Gong Yuansheng Lian Mingsheng Ye Gang Cheng Yijun 

机构地区：[1]Department of Material Science and Engineering, Southeast University, Nanjing 210096, China [2]Jiangsu Shenyuan Special Steel Co. , Ltd. , Xinghua 225722, China

出　　处：《Journal of Rare Earths》2006年第1期120-120,共1页稀土学报（英文版）

摘　　要：Grain growth behavior of 5Cr21Mn9Ni4NRE steel was experimentally studied at various solid solution treatment temperatures and holding for different times. The experimental results show that the 5Cr21Mn9Ni4NRE steel has the feature of sharp austenite grain coarsening after solid solution treatment at the temperature above 1150 ℃. RE added in the steel has the benefit to restrain grain growth and increase grain growth activation energy.Grain growth behavior of 5Cr21Mn9Ni4NRE steel was experimentally studied at various solid solution treatment temperatures and holding for different times. The experimental results show that the 5Cr21Mn9Ni4NRE steel has the feature of sharp austenite grain coarsening after solid solution treatment at the temperature above 1150 ℃. RE added in the steel has the benefit to restrain grain growth and increase grain growth activation energy.

关 键 词：solid solution treatment Rockwell hardness grain growth grain growth exponent rare earths 

分 类 号：TG142.33[一般工业技术—材料科学与工程]