Hot Deformation Behavior of Q235 Steel during Isothermal Compression at Elevated Temperature

Ben Yang; Zhou Zheng; Li Xin Wang; Yong Gang Wu

doi:10.4028/www.scientific.net/AMR.1088.186

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1088Hot Deformation Behavior of Q235 Steel during...

Hot Deformation Behavior of Q235 Steel during Isothermal Compression at Elevated Temperature

Abstract:

The isothermal hot compression tests of Q235 steel over a wide range of temperatures (1023-1123 K), strain (0.7) and strain rates (1、5、10 s⁻¹) were performed on Gleeble-1500 system. The results show that when the deformation temperature is constant, as the strain rate increases, the flow stress also increases; Use the JC model to establish constitutive relation equation with true stress-true strain curve. And compare the prediction value of the constitutive relation equation with the experimental values, the relative error between the two is within the allowable range, indicating that the JC model constitutive relation equation applicable for the thermal deformation of Q235 steel.

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Periodical:

Advanced Materials Research (Volume 1088)

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186-190

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https://doi.org/10.4028/www.scientific.net/AMR.1088.186

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Online since:

February 2015

Authors:

Ben Yang, Zhou Zheng, Li Xin Wang, Yong Gang Wu

Keywords:

Constitutive Equation, Flow Stress, Hot Deformation, Q235 Steel

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