Study on dynamic recrystallization kinetics and microstructural refinement of high-strength 36CrNi3MoV steel during hot deformation
The flow characteristics and grain morphology evolution of 36CrNi3MoV steel were systematically investigated through isothermal hot compression experiments under temperatures of 900–1200 °C and strain rates of 0.001–1 s−1. The true stress-strain curves revealed that the flow stress increases with ri...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425013055 |
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| author | Anzu Guo Feng Mao Ruxing Shi Yichou Lin Litao Yin Baoning Yu Liujie Xu Chong Chen Hua Yu Ke Gao Shizhong Wei |
| author_facet | Anzu Guo Feng Mao Ruxing Shi Yichou Lin Litao Yin Baoning Yu Liujie Xu Chong Chen Hua Yu Ke Gao Shizhong Wei |
| author_sort | Anzu Guo |
| collection | DOAJ |
| description | The flow characteristics and grain morphology evolution of 36CrNi3MoV steel were systematically investigated through isothermal hot compression experiments under temperatures of 900–1200 °C and strain rates of 0.001–1 s−1. The true stress-strain curves revealed that the flow stress increases with rising strain rates and decreasing deformation temperatures. A strain-coupled constitutive equation for flow stress was constructed based on a phenomenological model. Using single-pass compression experimental data, dynamic recrystallization (DRX) volume fraction and DRX grain size models were established, both demonstrating high accuracy in predicting and characterizing the DRX behavior of the studied alloy. Furthermore, hot processing maps at different true strains were developed based on the dynamic materials model (DMM). By partitioning these maps according to power dissipation efficiency and the Prasad instability criterion, the deformation mechanisms in different regions were analyzed through corresponding microstructures. The results revealed that the optimal deformation parameters are a temperature range of 1050–1100 °C and a strain rate range of 0.1–1s−1. These findings provide theoretical guidance for optimizing hot working processes of high-strength steels. |
| format | Article |
| id | doaj-art-6f4d3c043af0497bbd6a703e80b03482 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-6f4d3c043af0497bbd6a703e80b034822025-08-20T03:08:55ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01368999901210.1016/j.jmrt.2025.05.149Study on dynamic recrystallization kinetics and microstructural refinement of high-strength 36CrNi3MoV steel during hot deformationAnzu Guo0Feng Mao1Ruxing Shi2Yichou Lin3Litao Yin4Baoning Yu5Liujie Xu6Chong Chen7Hua Yu8Ke Gao9Shizhong Wei10School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaLongmen Laboratory, Luoyang, 471000, China; National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan University of Science and Technology, Luoyang, 471000, China; CITIC Heavy Industries Co. , Ltd. , Luoyang, Henan, 471039, China; Corresponding author. Longmen Laboratory, Luoyang, 471000, ChinaCITIC Heavy Industries Co. , Ltd. , Luoyang, Henan, 471039, China; State Key Laboratory of Intelligent Mining Heavy Equipment, Luoyang, Henan 471039, ChinaCITIC Heavy Industries Co. , Ltd. , Luoyang, Henan, 471039, ChinaCITIC Heavy Industries Co. , Ltd. , Luoyang, Henan, 471039, China; State Key Laboratory of Intelligent Mining Heavy Equipment, Luoyang, Henan 471039, ChinaCITIC Heavy Industries Co. , Ltd. , Luoyang, Henan, 471039, ChinaNational Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan University of Science and Technology, Luoyang, 471000, ChinaNational Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan University of Science and Technology, Luoyang, 471000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaCITIC Heavy Industries Co. , Ltd. , Luoyang, Henan, 471039, ChinaNational Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan University of Science and Technology, Luoyang, 471000, China; Corresponding author.The flow characteristics and grain morphology evolution of 36CrNi3MoV steel were systematically investigated through isothermal hot compression experiments under temperatures of 900–1200 °C and strain rates of 0.001–1 s−1. The true stress-strain curves revealed that the flow stress increases with rising strain rates and decreasing deformation temperatures. A strain-coupled constitutive equation for flow stress was constructed based on a phenomenological model. Using single-pass compression experimental data, dynamic recrystallization (DRX) volume fraction and DRX grain size models were established, both demonstrating high accuracy in predicting and characterizing the DRX behavior of the studied alloy. Furthermore, hot processing maps at different true strains were developed based on the dynamic materials model (DMM). By partitioning these maps according to power dissipation efficiency and the Prasad instability criterion, the deformation mechanisms in different regions were analyzed through corresponding microstructures. The results revealed that the optimal deformation parameters are a temperature range of 1050–1100 °C and a strain rate range of 0.1–1s−1. These findings provide theoretical guidance for optimizing hot working processes of high-strength steels.http://www.sciencedirect.com/science/article/pii/S223878542501305536CrNi3MoVDynamic recrystallizationConstitutive equationProcessing map |
| spellingShingle | Anzu Guo Feng Mao Ruxing Shi Yichou Lin Litao Yin Baoning Yu Liujie Xu Chong Chen Hua Yu Ke Gao Shizhong Wei Study on dynamic recrystallization kinetics and microstructural refinement of high-strength 36CrNi3MoV steel during hot deformation Journal of Materials Research and Technology 36CrNi3MoV Dynamic recrystallization Constitutive equation Processing map |
| title | Study on dynamic recrystallization kinetics and microstructural refinement of high-strength 36CrNi3MoV steel during hot deformation |
| title_full | Study on dynamic recrystallization kinetics and microstructural refinement of high-strength 36CrNi3MoV steel during hot deformation |
| title_fullStr | Study on dynamic recrystallization kinetics and microstructural refinement of high-strength 36CrNi3MoV steel during hot deformation |
| title_full_unstemmed | Study on dynamic recrystallization kinetics and microstructural refinement of high-strength 36CrNi3MoV steel during hot deformation |
| title_short | Study on dynamic recrystallization kinetics and microstructural refinement of high-strength 36CrNi3MoV steel during hot deformation |
| title_sort | study on dynamic recrystallization kinetics and microstructural refinement of high strength 36crni3mov steel during hot deformation |
| topic | 36CrNi3MoV Dynamic recrystallization Constitutive equation Processing map |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425013055 |
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