Constitutive Modeling for Elevated Temperature Flow Behavior of30Cr2Ni4MoV Ultra-super-critical Rotor Steel

作     者：Fei CHEN Fa-cai REN Zhen-shan CUI Xin-min LAI 

作者机构：Institute of Forming Technology and EquipmentShanghai Jiao Tong University School of Mechanical EngineeringShanghai Jiao Tong University 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2014年第21卷第5期

页      面：521-526页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Item Sponsored by National Basic Research Program of China(2011CB012900) National Science and Technology Major Project of China(2012ZX04012011) China Postdoctoral Science Foundation(2013M531171) 

主　　题：30Cr2Ni4MoV steel hot compression dynamical recrystallization flow stress 

摘      要：In order to perform numerical simulation of forging and determine the hot deformation processing parameters for 30Cr2Ni4MoV steel, the compressive deformation behaviors of 30Cr2Ni4MoV steel were investigated at the temperatures from 970 to 1270 ℃ and strain rates from 0. 001 to 0.1 s-1 on a Gleeble-3500 thermo-mechanical simulator. The flow stress constitutive equations of the work hardening-dynamical recovery period and dynamical recrystallization period were established for 30Cr2Ni4MoV steel. The stress-strain curves of 30Cr2Ni4MoV steel predicted by the proposed model well agreed with experimental results, which confirmed that the proposed equations can be used to determine the hot deformation processing parameters for 30Cr2Ni4MoV steel.