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Prediction of 42CrMo steel flow stress at high temperature

Prediction of 42CrMo steel flow stress at high temperature ...Apr 01, 2008Fig. 6a–d shows the predicted and measured flow stress curves of 42CrMo steel at temperatures of 850, 950, 1050, and 1150 °C, respectively. It can be easily found that the proposed deformation constitutive equations give an accurate and precise estima...

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Cited by 289Publish Year 2008Author Y.C. Lin, Ming-g Chen, Jue ZhongLin, Y.C., Chen, M.S. and Zhong, J. (2008) Prediction of Prediction of 42CrMo steel flow stress at high temperature

The hot deformation behavior of four different steels in the as-cast condition was investigated by means of hot compression tests conducted at temperatures ranging from 1100 °C up to 1200 °C, and at strain rates in between 0.12 and 2.4 s 1.The primary focus of this work was to check the possibility to increase the strain rate during the rough preliminary working of the ingots, i.e., to Prediction of 42CrMo steel flow stress at high temperature Cited by 289Publish Year 2008Author Y.C. Lin, Ming-g Chen, Jue ZhongPrediction of 42CrMo steel flow stress at high temperature Prediction of 42CrMo steel flow stress at high temperature The compressive deformation behavior of 42CrMo steel was investigated at temperatures ranging from 850 to 1150 °C and strain rates from 0.01 to 50 s 1 on Gleeble-1500 thermo-simulation machine. Based on the classical stressdislocation relation and the kinematics of the dynamic recrystallization, the flow stress constitutive equations of the work hardening-dynamical recovery period and dynamical recrystallization period were established for 42CrMo steel, Prediction of 42CrMo steel flow stress at high temperature Prediction of 42CrMo steel flow stress at high temperature Apr 01, 2008Fig. 6ad shows the predicted and measured flow stress curves of 42CrMo steel at temperatures of 850, 950, 1050, and 1150 °C, respectively. It can be easily found that the proposed deformation constitutive equations give an accurate and precise estimate of the flow stress for 42CrMo steel under most deformation conditions, except those cases with strain rate of 50 s 1 .

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