Flow Stress Prediction for B210P Steel at Hot Working Conditions
Prediction of the flow stress is a significant step to optimize the hot working processes.In order to establish a proper deformation constitutive equation,the compressive deformation behavior of B210P steel was investigated at temperature from 950℃ to 1150℃ and strain rates from 0.1s-1 to 10s-1 on a Gleeble-2000 thermo-simulation machine.Based on the true stress-strain data from flow stress curves,a revised model describing the relationships of the flow stress,strain rate and temperature of B210P steel at elevated temperatures is proposed considering the effect of strain on flow stress.The activation energies have been in the range of 277.740-420.241kJ/mol for different amounts of strain.Finally,the accuracy of the developed constitutive equation has been verified using standard statistical parameters.The results confirm that the developed strain-dependent constitutive equation gives an accurate and precise estimate of the flow stress in the relevant deformation conditions.
IF steel Flow Stress Constitutive Equation Hot Working
Jiang Guangwei Di Hongshuang Cao Yu Zhang Zhongwei Wang Yafei Sui Pengfei
State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,PR China;Cold State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,PR China Cold Rolling Mill,Benxi Iron & Stee Co.,Benxi 117000,PR China
国际会议
沈阳
英文
630-636
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）