Multi-field Coupled Numerical Simulation of Hot Reversible Rolling Process of GCr15 Steel Rod
In this paper,based on rolling technology of hot reversible rolling mill,a multi-filed coupled finite element (FE) model of hot reversible rolling process of large dimension cross-section GCr15 steel rod is established.Thermal,mechanical and microstructural phenomena during the rolling process are coupled in the model.By employing grain growth experiment,double and single hit hot compression experiments,the austenite grain size growth mathematical model and recrystallization behavior mathematical models are determined.And a designed subprogram is coupled in the FE model.Actual hot reversible rolling process of GCr15 steel is simulated using the model and the distribution and evolution of different filed-variables,such as temperature,effective strain and austenite grain size are obtained.To verify the model predictions,hot rolling experiments are carried out and the temperature and microstructure of the rolling metal are compared with the predicted results.The comparison between the two sets of data shows a good agreement.
Hot Reversible Rod Rolling FEM Recrystallization Microstructure
Sendong Gu Liwen Zhang Jinhua Ruan Hongyu Mei Yu Zhen Xinhua Shi
School of Material Science and Engineering,Dalian University of Technology,Dalian 116023,Liaoning,Ch Suzhou Suxin Special Steel Group Co.,Ltd.,Suzhou 215151 Jiangsu,China
国际会议
沈阳
英文
354-360
2013-07-06(万方平台首次上网日期,不代表论文的发表时间)