Exploring hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C–1.1Al(–0.1Ti–0.22Mo) steels through physical modeling and microstructure characterization
This study investigated the hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C-1.1Al(–0.1Ti–0.22Mo) steels through hot compression tests conducted at temperatures ranging from 750 °C to 1150 °C and strain rates from 0.01 s−1 to 1 s−1. The flow stress behavior was analyzed using a...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-05-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425012992 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850151503458729984 |
|---|---|
| author | H.T. Zhang H.Y. Li N. Xiao S.H. Sun H.L. Yan M.H. Cai Y.–K. Lee |
| author_facet | H.T. Zhang H.Y. Li N. Xiao S.H. Sun H.L. Yan M.H. Cai Y.–K. Lee |
| author_sort | H.T. Zhang |
| collection | DOAJ |
| description | This study investigated the hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C-1.1Al(–0.1Ti–0.22Mo) steels through hot compression tests conducted at temperatures ranging from 750 °C to 1150 °C and strain rates from 0.01 s−1 to 1 s−1. The flow stress behavior was analyzed using an Arrhenius–type constitutive equation, revealing that Ti–Mo microalloying increased the activation energy for hot deformation by 101.9 kJ/mol. Furthermore, the hot deformation behavior was modeled and predicted using the Bergström model for the work hardening/recovery stage and the Kolmogorov–Johnson–Mehl–Avrami (KJMA) model for dynamic recrystallization (DRX). Microstructural analysis of specimens deformed at 750 °C indicated that deformation–induced ferrite transformation (DIFT) facilitated softening in the intercritical region, with the Kurdjumov–Sachs (K–S) orientation relationship between the deformation–induced ferrite and the parent austenite. At 850 °C, nano–sized (Ti,Mo)C precipitates refined prior austenite grains and suppressed DRX due to a strong pinning effect. However, at 1050 °C and above, precipitate coarsening weakened the pinning effect, resulting in similar flow behavior and microstructural features in both steels. |
| format | Article |
| id | doaj-art-aa4c398ce874449cb6a05f57e839fe5d |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-aa4c398ce874449cb6a05f57e839fe5d2025-08-20T02:26:14ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01369208921910.1016/j.jmrt.2025.05.144Exploring hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C–1.1Al(–0.1Ti–0.22Mo) steels through physical modeling and microstructure characterizationH.T. Zhang0H.Y. Li1N. Xiao2S.H. Sun3H.L. Yan4M.H. Cai5Y.–K. Lee6School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, ChinaSchool of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, ChinaAnalytical and Testing Center, Northeastern University, Shenyang, 110819, ChinaXi'an Rare Metal Materials Institute Co. Ltd., 96 Weiyang Road, Xi'an, 710016, ChinaSchool of Materials Science and Engineering, Northeastern University, Shenyang, 110819, ChinaSchool of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China; State Key Lab of Rolling and Automation, Northeastern University, Shenyang, 110819, China; Corresponding author. School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China.Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea; Graduate Institute of Ferrous & Eco Materials Technology, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea; Corresponding author. Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea.This study investigated the hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C-1.1Al(–0.1Ti–0.22Mo) steels through hot compression tests conducted at temperatures ranging from 750 °C to 1150 °C and strain rates from 0.01 s−1 to 1 s−1. The flow stress behavior was analyzed using an Arrhenius–type constitutive equation, revealing that Ti–Mo microalloying increased the activation energy for hot deformation by 101.9 kJ/mol. Furthermore, the hot deformation behavior was modeled and predicted using the Bergström model for the work hardening/recovery stage and the Kolmogorov–Johnson–Mehl–Avrami (KJMA) model for dynamic recrystallization (DRX). Microstructural analysis of specimens deformed at 750 °C indicated that deformation–induced ferrite transformation (DIFT) facilitated softening in the intercritical region, with the Kurdjumov–Sachs (K–S) orientation relationship between the deformation–induced ferrite and the parent austenite. At 850 °C, nano–sized (Ti,Mo)C precipitates refined prior austenite grains and suppressed DRX due to a strong pinning effect. However, at 1050 °C and above, precipitate coarsening weakened the pinning effect, resulting in similar flow behavior and microstructural features in both steels.http://www.sciencedirect.com/science/article/pii/S2238785425012992Medium Mn steelTi–Mo microalloyingHot deformationDeformation–induced ferrite transformationDynamic recrystallization |
| spellingShingle | H.T. Zhang H.Y. Li N. Xiao S.H. Sun H.L. Yan M.H. Cai Y.–K. Lee Exploring hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C–1.1Al(–0.1Ti–0.22Mo) steels through physical modeling and microstructure characterization Journal of Materials Research and Technology Medium Mn steel Ti–Mo microalloying Hot deformation Deformation–induced ferrite transformation Dynamic recrystallization |
| title | Exploring hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C–1.1Al(–0.1Ti–0.22Mo) steels through physical modeling and microstructure characterization |
| title_full | Exploring hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C–1.1Al(–0.1Ti–0.22Mo) steels through physical modeling and microstructure characterization |
| title_fullStr | Exploring hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C–1.1Al(–0.1Ti–0.22Mo) steels through physical modeling and microstructure characterization |
| title_full_unstemmed | Exploring hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C–1.1Al(–0.1Ti–0.22Mo) steels through physical modeling and microstructure characterization |
| title_short | Exploring hot deformation mechanism and precipitation behavior of Fe–5.6Mn–0.18C–1.1Al(–0.1Ti–0.22Mo) steels through physical modeling and microstructure characterization |
| title_sort | exploring hot deformation mechanism and precipitation behavior of fe 5 6mn 0 18c 1 1al 0 1ti 0 22mo steels through physical modeling and microstructure characterization |
| topic | Medium Mn steel Ti–Mo microalloying Hot deformation Deformation–induced ferrite transformation Dynamic recrystallization |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425012992 |
| work_keys_str_mv | AT htzhang exploringhotdeformationmechanismandprecipitationbehavioroffe56mn018c11al01ti022mosteelsthroughphysicalmodelingandmicrostructurecharacterization AT hyli exploringhotdeformationmechanismandprecipitationbehavioroffe56mn018c11al01ti022mosteelsthroughphysicalmodelingandmicrostructurecharacterization AT nxiao exploringhotdeformationmechanismandprecipitationbehavioroffe56mn018c11al01ti022mosteelsthroughphysicalmodelingandmicrostructurecharacterization AT shsun exploringhotdeformationmechanismandprecipitationbehavioroffe56mn018c11al01ti022mosteelsthroughphysicalmodelingandmicrostructurecharacterization AT hlyan exploringhotdeformationmechanismandprecipitationbehavioroffe56mn018c11al01ti022mosteelsthroughphysicalmodelingandmicrostructurecharacterization AT mhcai exploringhotdeformationmechanismandprecipitationbehavioroffe56mn018c11al01ti022mosteelsthroughphysicalmodelingandmicrostructurecharacterization AT yklee exploringhotdeformationmechanismandprecipitationbehavioroffe56mn018c11al01ti022mosteelsthroughphysicalmodelingandmicrostructurecharacterization |