Hot Deformation Behavior of Q345 Steel and Its Application in Rapid Shear Connection

Materials

Shuangjie Zhang¹  Wei Wang¹  Mengwei Wu¹  Shibo Ma¹  Huajun Yan¹  Qiang Li² 

[1] School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei, China;School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China;

关键词: the thermal deformation behavior;    Arrhenius constitutive equation;    dynamic recrystallization model;    secondary development;    shear connection;    microstructural evolution;   

DOI  :  10.3390/ma12132186

来源: DOAJ

【 摘 要 】

The high-temperature deformation behavior of Q345 steel is detected by a Gleeble-3800 thermal simulator. The Arrhenius constitutive equation for high-temperature flow stress and the dynamic recrystallization model are constructed. With the secondary development technology, customized modifications are made on existing Deform-3D software. The constructed constitutive model and dynamic recrystallization model are embedded into Deform-3D to realize the secondary development of Deform-3D. The grain size and volume percentage distribution of dynamic recrystallization are obtained by simulating the shear connection process at high temperature and high speed. The results show that the constitutive equation and the dynamic recrystallization model constructed in this paper can be used to predict the evolution of the microstructure. The difference between the prediction results and the experimental data is about 3%. The accuracy of Arrhenius constitutive equation, dynamic recrystallization model and the feasibility of software secondary development are verified.

【 授权许可】

Unknown