Multi-field coupled numerical simulation of microstructure evolution during the hot rolling process of GCr15 steel rod

Gu, Shitan; Zhang, Liwen; Yue, Chong-xiang; Ruan, Jinhua; Zhang, Jianlin; Gao, Hui-ju

doi:10.1016/j.commatsci.2011.01.034

Cited by 26 publications

(12 citation statements)

References 37 publications

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“…It has been widely used in manufacturing bearing ring, ball screw and other mechanical components. A number of research groups have studied the plastic behavior and material properties of GCr15 steel under specified forming processes by experiment and FE simulation method [15][16][17]. However, research reports focusing on modeling the constitutive equation of GCr15 steel under hot deformation condition are still unavailable.…”

Section: Introductionmentioning

confidence: 99%

Constitutive modeling for flow behavior of GCr15 steel under hot compression experiments

et al. 2013

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Section: Introductionmentioning

confidence: 99%

Constitutive modeling for flow behavior of GCr15 steel under hot compression experiments

et al. 2013

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“…The subprogram calculates DRX volume fraction and DRX grain sizes step by step. The average grain sizes (D ave ) are calculated according to the Eq 1 (Ref 13,14). The computational process continues until the compression period t total is over.…”

Section: Fe Model For Hot Compression Processmentioning

confidence: 99%

Modeling the Effects of Processing Parameters on Dynamic Recrystallization Behavior of Deformed 38MnVS6 Steel

Zhang

et al. 2015

J. of Materi Eng and Perform

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The dynamic recrystallization (DRX) and grain growth mathematical models of 38MnVS6 steel were obtained on the basis of the results from hot compression tests and isothermal annealing tests on a Gleeble-1500 thermo-mechanical simulator. A three-dimensional finite element model was established to investigate the compression process. In order to predict the evolution of DRX volume fraction and austenite grain sizes, a subprogram was designed and coupled in the FE model. The effects of deformation temperatures and strain rates on microstructural evolution and distribution of 38MnVS6 steel during hot compression process were simulated. The simulated results show that the distributions of DRX volume fraction are inhomogeneous in the deformed workpiece, and the degree of DRX increases with increasing deformation temperature and decreasing strain rate. The average rate of DRX increases with the increase of deformation temperature and strain rate. Additionally, with the decrease of deformation temperature and the increase of strain rate, the inhomogeneity of DRX grain sizes increases and the average complete DRX grain sizes become finer. The simulated values of average complete DRX grain sizes show a good agreement with the measured ones.

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“…Many scholars have made their dedication and continued efforts in the experimental research of 100Cr6. With the establishment of macro-microscopic constitutive equations of 100Cr6 steel [ 11 , 12 ], Gu et al [ 13 ] investigated the multi-field coupled numerical simulation of microstructure during hot rolling. The distribution and evolution of microstructure characteristics was presented.…”

Section: Introductionmentioning

confidence: 99%

Influence of Plastic Deformation on Microstructural Evolution of 100Cr6 Bearing Ring in Hot Ring Rolling

2020

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The hot ring rolling technology as the crucial procedure for the manufacture of bearing rings plays an important role in determining the final microstructure of bearing rings. In this work, the influence of the hot ring rolling process on the microstructural evolution of 100Cr6 bearing rings was investigated using a three-dimensional (3D) numerical model and microstructural characterization. It was found that the significant microstructural refinement occurs at the different regions of the rings. However, owing to the non-uniform plastic deformation of hot rolling, the refinement rate of grain size and decrease of pearlite lamellar spacing (PLS) also showed uniformity at different regions of the rings. Furthermore, the degree of grain refinement had been limited with the increase of rolling reduction. Due to the refined grain size and decreased PLS, the Vickers hardness increased with the increase of rolling reduction. Moreover, the Vickers hardness from the outer surface to the inner surface of the ring is asymmetrical u-shaped, which had the law of lower hardness in the center area and higher hardness on the surface.

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Multi-field coupled numerical simulation of microstructure evolution during the hot rolling process of GCr15 steel rod

Cited by 26 publications

References 37 publications

Constitutive modeling for flow behavior of GCr15 steel under hot compression experiments

Constitutive modeling for flow behavior of GCr15 steel under hot compression experiments

Modeling the Effects of Processing Parameters on Dynamic Recrystallization Behavior of Deformed 38MnVS6 Steel

Influence of Plastic Deformation on Microstructural Evolution of 100Cr6 Bearing Ring in Hot Ring Rolling

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