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

Wu, Mei; Zhang, Shuangjie; Ma, Sai; Yan, Hongge; Wei, Wang; Li, Qiang

doi:10.3390/ma12132186

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…The Arrhenius model can well describe the constitutive relationship between temperature, strain rate and strain during hot deformation [31]. Its form is expressed as follows:…”

Section: Arrhenius Modelmentioning

confidence: 99%

Comparative Analysis of Three Constitutive Models and Microstructure Characteristics of Nb521 during Hot Deformation

et al. 2023

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This study presents an exploration of the flow stress constitutive model and the deformation mechanism of Nb521, both critical for its practical application. Hot-compression experiments were performed on Nb521 at temperatures ranging from 1523 K to 1723 K and strain rates ranging from 0.01 to 10 s−1. In addition, the microstructure evolution was concurrently studied through scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD). The stress–strain behaviour of Nb521 was assessed, leading to the development of three constitutive models: the Johnson–Cook model, the modified Johnson–Cook model and the Arrhenius model. In the course of the deformation process, it is consistently observed that the hardening effect surpasses the softening effect during the plastic phase, with no observable occurrence of a steady-state phase. The modified Johnson–Cook model offers superior predictive accuracy. Both grain elongation and torsion are the main deformation mechanisms of Nb521 and specific texture forms during stretching. This study also reveals that fractures at both room temperature and high temperatures are brittle in nature. The elucidation of the constitutive model and underlying deformation mechanisms in this study offers indispensable insights into the hot-deformation behaviour of Nb521.

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“…The Arrhenius model can well describe the constitutive relationship between temperature, strain rate and strain during hot deformation [31]. Its form is expressed as follows:…”

Section: Arrhenius Modelmentioning

confidence: 99%

Comparative Analysis of Three Constitutive Models and Microstructure Characteristics of Nb521 during Hot Deformation

et al. 2023

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“…Knapinski et al [8] used a Gleeble-3800 thermal/mechanical simulator (Gleeble3800, Dynamic Systems Inc, Austin, TX, USA) to study the microstructure evolution of an X80-X100 steel plate during hot deformation. Wu et al [9] implanted the model obtained from the experimental data into DEFORM-3D (DEFORM V10.2, Science Forming Technology Corporation, Clumbus, OH, USA) and obtained the distribution of the recrystallization grain size and the recrystallization volume through finite element simulation.…”

Section: Introductionmentioning

confidence: 99%

Hot Deformation Behavior and Dynamic Recrystallization of Ultra High Strength Steel

Zhong

Wang

et al. 2021

Metals

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In this paper, in order to improve the microstructure uniformity of an ultra-high strength martensitic steel with a strength greater than 2500 Mpa developed by multi-directional forging in the laboratory, a single-pass hot compression experiment with the strain rate of 0.01 to 1 s−1 and a temperature of 800 to 1150 °C was conducted. Based on the experimental data, the material parameters were determined, the constitutive model considering the influence of work hardening, the recrystallization softening on the dislocation density, and the recrystallized grain size model were established. After introducing the model into the finite element software DEFORM-3D, the thermal compression experiment was simulated, and the results were consistent with the experimental results. The rule for obtaining forging stock with a uniform and refinement microstructure was acquired by comparing the simulation and the experimental results, which are helpful to formulate an appropriate forging process.

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Numerical Simulation Research and Application of Convex Roll for Efficient Soft Reduction of Continuous Casting Slab

Zhou

Yin

Zhang

2022

Metall Mater Trans B

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

Cited by 6 publications

References 26 publications

Comparative Analysis of Three Constitutive Models and Microstructure Characteristics of Nb521 during Hot Deformation

Comparative Analysis of Three Constitutive Models and Microstructure Characteristics of Nb521 during Hot Deformation

Hot Deformation Behavior and Dynamic Recrystallization of Ultra High Strength Steel

Numerical Simulation Research and Application of Convex Roll for Efficient Soft Reduction of Continuous Casting Slab

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