Dynamic Recrystallization Behavior of Microalloyed Forged Steel  

作　　者：WANG Jin CHEN Jun ZHAO Zhen RUAN Xue-yu 

机构地区：[1]National Die and Mold CAD Engineering Research Center, Shanghai Jiao Tong University, Shanghai 200030, China

出　　处：《Journal of Iron and Steel Research International》2008年第3期78-81,91,共5页

基　　金：National Natural Science Foundation of China (50275094)

摘　　要：The dynamic recrystallization behavior of microalloyed forged steel was investigated with a compression test in the temperature range of 1 223-1 473 K and a strain rate of 0. 01-5 s^-1. Activation energy was calculated to be 305.9 kJ/mol by regression analysis. Modeling equations were developed to represent the dynamic recrystallization volume fraction and grain size. Parameters of the modeling equations were determined as a function of the Zener-Hollomon parameter. The developed modeling equation will be combined with finite element modeling to predict microstructural change during the hot forging processing.The dynamic recrystallization behavior of microalloyed forged steel was investigated with a compression test in the temperature range of 1 223-1 473 K and a strain rate of 0. 01-5 s^-1. Activation energy was calculated to be 305.9 kJ/mol by regression analysis. Modeling equations were developed to represent the dynamic recrystallization volume fraction and grain size. Parameters of the modeling equations were determined as a function of the Zener-Hollomon parameter. The developed modeling equation will be combined with finite element modeling to predict microstructural change during the hot forging processing.

关 键 词：microalloyed forged steel dynamic recrystallization flow stress 

分 类 号：TG13[一般工业技术—材料科学与工程]