Quantitative analysis of the micromechanical behavior and work hardening in Fe-0.1C–10Mn steel via in-situ high-energy X-ray diffraction
In the current work, the micromechanical behavior and work hardening behavior of Fe-0.1C–10Mn (in wt.%) steel deformed at 100, 63, 25 and −50 °C were investigated via in-situ high-energy X-ray diffraction (HE-XRD) technique. As the deformation temperature decreased, the yield strength (YS) and ultim...
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2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542402074X |
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| author | Hongwei Gao Minghe Zhang Ze Ji Zhiye Zhang Yunli Feng Haiyang Chen Shilei Li Yandong Wang |
| author_facet | Hongwei Gao Minghe Zhang Ze Ji Zhiye Zhang Yunli Feng Haiyang Chen Shilei Li Yandong Wang |
| author_sort | Hongwei Gao |
| collection | DOAJ |
| description | In the current work, the micromechanical behavior and work hardening behavior of Fe-0.1C–10Mn (in wt.%) steel deformed at 100, 63, 25 and −50 °C were investigated via in-situ high-energy X-ray diffraction (HE-XRD) technique. As the deformation temperature decreased, the yield strength (YS) and ultimate tensile strength (UTS) increased, while the total elongation (TE) reached a maximum value at 25 °C. The transformation kinetics of retained austenite (RA) was fitted by the Olson and Cohen (OC) model. The phase stress and flow stress contributed by the constituent phases were obtained based on the lattice strain and the volume fraction of the corresponding phase. The work hardening rate was decomposed into four contributors related to the TRIP effect and load partitioning, ie., the austenite phase stress, load partitioning between austenite and martensite, martensitic formation rate and load partitioning between ferrite and austenite. The influence of each contributor on the work hardening behavior was quantitatively evaluated and stacked, the stacked results agreed reasonably well with the experimental work hardening rate obtained from the true stress-strain curve. Finally, the volume fraction of austenite to martensite transformation promoted by the Lüders band (LB) and the stacking fault energy (SFE) of RA were found to be highly temperature-dependent. A linear relationship was revealed between the volume fraction of austenite to martensite transformation during the LB propagation and the SFE of RA. These findings offer insights into the TRIP effect and the LB propagation in medium-Mn steels. |
| format | Article |
| id | doaj-art-087aedd54dc24460b1a9d0f4b8a32ae7 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-087aedd54dc24460b1a9d0f4b8a32ae72025-08-20T02:35:26ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013377378410.1016/j.jmrt.2024.09.069Quantitative analysis of the micromechanical behavior and work hardening in Fe-0.1C–10Mn steel via in-situ high-energy X-ray diffractionHongwei Gao0Minghe Zhang1Ze Ji2Zhiye Zhang3Yunli Feng4Haiyang Chen5Shilei Li6Yandong Wang7College of Metallurgy and Energy, North China University of Science and Technology, Tangshan, 063210, ChinaCollege of Metallurgy and Energy, North China University of Science and Technology, Tangshan, 063210, China; Corresponding author.College of Metallurgy and Energy, North China University of Science and Technology, Tangshan, 063210, ChinaCollege of Metallurgy and Energy, North China University of Science and Technology, Tangshan, 063210, ChinaCollege of Metallurgy and Energy, North China University of Science and Technology, Tangshan, 063210, ChinaBeijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, ChinaBeijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, ChinaBeijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China; Corresponding author.In the current work, the micromechanical behavior and work hardening behavior of Fe-0.1C–10Mn (in wt.%) steel deformed at 100, 63, 25 and −50 °C were investigated via in-situ high-energy X-ray diffraction (HE-XRD) technique. As the deformation temperature decreased, the yield strength (YS) and ultimate tensile strength (UTS) increased, while the total elongation (TE) reached a maximum value at 25 °C. The transformation kinetics of retained austenite (RA) was fitted by the Olson and Cohen (OC) model. The phase stress and flow stress contributed by the constituent phases were obtained based on the lattice strain and the volume fraction of the corresponding phase. The work hardening rate was decomposed into four contributors related to the TRIP effect and load partitioning, ie., the austenite phase stress, load partitioning between austenite and martensite, martensitic formation rate and load partitioning between ferrite and austenite. The influence of each contributor on the work hardening behavior was quantitatively evaluated and stacked, the stacked results agreed reasonably well with the experimental work hardening rate obtained from the true stress-strain curve. Finally, the volume fraction of austenite to martensite transformation promoted by the Lüders band (LB) and the stacking fault energy (SFE) of RA were found to be highly temperature-dependent. A linear relationship was revealed between the volume fraction of austenite to martensite transformation during the LB propagation and the SFE of RA. These findings offer insights into the TRIP effect and the LB propagation in medium-Mn steels.http://www.sciencedirect.com/science/article/pii/S223878542402074XHigh-energy X-ray diffractionMedium-Mn steelsTRIP effectWork hardening behaviorStacking fault energy |
| spellingShingle | Hongwei Gao Minghe Zhang Ze Ji Zhiye Zhang Yunli Feng Haiyang Chen Shilei Li Yandong Wang Quantitative analysis of the micromechanical behavior and work hardening in Fe-0.1C–10Mn steel via in-situ high-energy X-ray diffraction Journal of Materials Research and Technology High-energy X-ray diffraction Medium-Mn steels TRIP effect Work hardening behavior Stacking fault energy |
| title | Quantitative analysis of the micromechanical behavior and work hardening in Fe-0.1C–10Mn steel via in-situ high-energy X-ray diffraction |
| title_full | Quantitative analysis of the micromechanical behavior and work hardening in Fe-0.1C–10Mn steel via in-situ high-energy X-ray diffraction |
| title_fullStr | Quantitative analysis of the micromechanical behavior and work hardening in Fe-0.1C–10Mn steel via in-situ high-energy X-ray diffraction |
| title_full_unstemmed | Quantitative analysis of the micromechanical behavior and work hardening in Fe-0.1C–10Mn steel via in-situ high-energy X-ray diffraction |
| title_short | Quantitative analysis of the micromechanical behavior and work hardening in Fe-0.1C–10Mn steel via in-situ high-energy X-ray diffraction |
| title_sort | quantitative analysis of the micromechanical behavior and work hardening in fe 0 1c 10mn steel via in situ high energy x ray diffraction |
| topic | High-energy X-ray diffraction Medium-Mn steels TRIP effect Work hardening behavior Stacking fault energy |
| url | http://www.sciencedirect.com/science/article/pii/S223878542402074X |
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