Determination of the Kinetics for Dynamic and Static Recrystallization by Using the Flow Curves
Improved methods to estimate the kinetics of dynamic and static recrystallization are proposed in this paper. The kinetics for dynamic and static recrystallization can be evaluated by inverse analysis of the flow curves obtained using the single-hit and double-hit hot compression tests carried out on Gleeble 3500. The dynamic and static recrystallization volume fractions can be seen as functions of plastic strain and time, respectively. The mathematical formulations between the recrystallization volume fractions and the dislocation density related to the flow stress are used in incremental forms in the study. The methods are applied to the hot compression tests of plain carbon steel and the kinetics of dynamic and static recrystallization are obtained successfully for a wide range of deformation rate at elevated temperature. The results are clarified by comparing them with those reported in previous investigations. It is confirmed that the proposed methods can provide accurate kinetics for dynamic and static recrystallization with shorter time for experiment and computation.
Microstructure Dynamic recrystallization Static recrystallization Flow curve Inverse analysis Hot compression Dislocation density
Jian WANG Hong XIAO
School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
国际会议
郑州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）