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Model of Metal Microstructure Evolution Considering Shear Effect and Its Simulation Application in Rolling of Heavy Cylinders

In the rolling process of heavy cylinders, the deformation section is subjected to the effects of compression and shear. In order to analyze the influences of the shear effect on the microstructure evolution characteristics, a mathematical model was established and the rolling process was simulated....

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Autores principales: Jiao, Yunjing, Dong, Zhikui, Liang, Pengwei, Sun, Jianliang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8003306/
https://www.ncbi.nlm.nih.gov/pubmed/33803860
http://dx.doi.org/10.3390/ma14061500
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author Jiao, Yunjing
Dong, Zhikui
Liang, Pengwei
Sun, Jianliang
author_facet Jiao, Yunjing
Dong, Zhikui
Liang, Pengwei
Sun, Jianliang
author_sort Jiao, Yunjing
collection PubMed
description In the rolling process of heavy cylinders, the deformation section is subjected to the effects of compression and shear. In order to analyze the influences of the shear effect on the microstructure evolution characteristics, a mathematical model was established and the rolling process was simulated. Firstly, shear-compression specimen (SCS) and ordinary cylinder specimens were designed, high-temperature compression experiments were carried out and the mathematical model of microstructure evolution considering shear effect was established; then, a program based on finite element software was developed to simulate the microstructure evolution process, and the feasibility of the development program was verified by compression experiments. Finally, a macro–micro coupling model based on the development program was established to simulate the microstructure evolution of the heavy cylinder during the rolling process. Then, the influence of the shear effect on the microstructure evolution was analyzed. The results showed that the shear effect had a great influence on the heavy cylinder. Dynamic recrystallization was more likely to occur in the heavy cylinder during the rolling process and the grain refinement was more obvious; compared with the case without considering the shear effect, the volume fraction of dynamic recrystallization was increased by 0.25%, and the grain size was refined by 30 μm.
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spelling pubmed-80033062021-03-28 Model of Metal Microstructure Evolution Considering Shear Effect and Its Simulation Application in Rolling of Heavy Cylinders Jiao, Yunjing Dong, Zhikui Liang, Pengwei Sun, Jianliang Materials (Basel) Article In the rolling process of heavy cylinders, the deformation section is subjected to the effects of compression and shear. In order to analyze the influences of the shear effect on the microstructure evolution characteristics, a mathematical model was established and the rolling process was simulated. Firstly, shear-compression specimen (SCS) and ordinary cylinder specimens were designed, high-temperature compression experiments were carried out and the mathematical model of microstructure evolution considering shear effect was established; then, a program based on finite element software was developed to simulate the microstructure evolution process, and the feasibility of the development program was verified by compression experiments. Finally, a macro–micro coupling model based on the development program was established to simulate the microstructure evolution of the heavy cylinder during the rolling process. Then, the influence of the shear effect on the microstructure evolution was analyzed. The results showed that the shear effect had a great influence on the heavy cylinder. Dynamic recrystallization was more likely to occur in the heavy cylinder during the rolling process and the grain refinement was more obvious; compared with the case without considering the shear effect, the volume fraction of dynamic recrystallization was increased by 0.25%, and the grain size was refined by 30 μm. MDPI 2021-03-18 /pmc/articles/PMC8003306/ /pubmed/33803860 http://dx.doi.org/10.3390/ma14061500 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jiao, Yunjing
Dong, Zhikui
Liang, Pengwei
Sun, Jianliang
Model of Metal Microstructure Evolution Considering Shear Effect and Its Simulation Application in Rolling of Heavy Cylinders
title Model of Metal Microstructure Evolution Considering Shear Effect and Its Simulation Application in Rolling of Heavy Cylinders
title_full Model of Metal Microstructure Evolution Considering Shear Effect and Its Simulation Application in Rolling of Heavy Cylinders
title_fullStr Model of Metal Microstructure Evolution Considering Shear Effect and Its Simulation Application in Rolling of Heavy Cylinders
title_full_unstemmed Model of Metal Microstructure Evolution Considering Shear Effect and Its Simulation Application in Rolling of Heavy Cylinders
title_short Model of Metal Microstructure Evolution Considering Shear Effect and Its Simulation Application in Rolling of Heavy Cylinders
title_sort model of metal microstructure evolution considering shear effect and its simulation application in rolling of heavy cylinders
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8003306/
https://www.ncbi.nlm.nih.gov/pubmed/33803860
http://dx.doi.org/10.3390/ma14061500
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