Elucidating the deformation behaviour of DX54 steel under a continuous strain path change
Continuous strain path changes significantly influence material formability in industrial stamping. A deeper understanding of this effect requires investigating the evolution of crystallographic texture and the underlying deformation mechanisms. This study investigates the impact of a uniaxial to bi...
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Elsevier
2025-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425016035 |
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| author | Sisir Dhara Rahul Rakshit Sumit Hazra Sumantra Mandal Sushanta Kumar Panda |
| author_facet | Sisir Dhara Rahul Rakshit Sumit Hazra Sumantra Mandal Sushanta Kumar Panda |
| author_sort | Sisir Dhara |
| collection | DOAJ |
| description | Continuous strain path changes significantly influence material formability in industrial stamping. A deeper understanding of this effect requires investigating the evolution of crystallographic texture and the underlying deformation mechanisms. This study investigates the impact of a uniaxial to biaxial continuous strain path change on the microstructure and texture evolution of DX54 steel. Cruciform samples were tested in-situ using electron backscatter diffraction in a scanning electron microscope (SEM), with additional digital image correlation experiments conducted outside the SEM to monitor strain evolution. The uniaxial path accumulated higher effective strain before the transition, resulting in a more pronounced texture than in the subsequent biaxial path, particularly along the α- and γ-fibers. Visco-plastic self-consistent (VPSC) simulations were used to predict texture evolution and elucidate the dominant deformation mechanisms. VPSC simulations incorporating latent hardening yielded more accurate texture predictions than those with isotropic hardening, especially in the uniaxial path. VPSC results indicated a sharp increase in active slip systems during the strain path change. A transition in slip activity was observed, with {110}<111> slip decreasing and {112}<111> slip becoming dominant at later stages of deformation in both strain paths. This enhanced {112}<111> activity contributed to the strengthening of the α-fiber at the {114}<110> and γ-fiber at the {111}<110> texture components, thereby influencing strain hardening behaviour during deformation along both strain paths. |
| format | Article |
| id | doaj-art-8941796f42a4471d9b4f20bfbb6936b6 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-8941796f42a4471d9b4f20bfbb6936b62025-08-20T03:16:01ZengElsevierJournal of Materials Research and Technology2238-78542025-07-01372627264210.1016/j.jmrt.2025.06.181Elucidating the deformation behaviour of DX54 steel under a continuous strain path changeSisir Dhara0Rahul Rakshit1Sumit Hazra2Sumantra Mandal3Sushanta Kumar Panda4WMG, University of Warwick, Coventry, CV4 7AL, UK; Corresponding author.Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur, 721302, India; Department of Materials Science and Engineering, University of Arizona, Tucson, AZ, 85721, USA; Corresponding author. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur, 721302, India.WMG, University of Warwick, Coventry, CV4 7AL, UKDepartment of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur, 721302, IndiaDepartment of Mechanical Engineering, Indian Institute of Technology, Kharagpur, 721302, IndiaContinuous strain path changes significantly influence material formability in industrial stamping. A deeper understanding of this effect requires investigating the evolution of crystallographic texture and the underlying deformation mechanisms. This study investigates the impact of a uniaxial to biaxial continuous strain path change on the microstructure and texture evolution of DX54 steel. Cruciform samples were tested in-situ using electron backscatter diffraction in a scanning electron microscope (SEM), with additional digital image correlation experiments conducted outside the SEM to monitor strain evolution. The uniaxial path accumulated higher effective strain before the transition, resulting in a more pronounced texture than in the subsequent biaxial path, particularly along the α- and γ-fibers. Visco-plastic self-consistent (VPSC) simulations were used to predict texture evolution and elucidate the dominant deformation mechanisms. VPSC simulations incorporating latent hardening yielded more accurate texture predictions than those with isotropic hardening, especially in the uniaxial path. VPSC results indicated a sharp increase in active slip systems during the strain path change. A transition in slip activity was observed, with {110}<111> slip decreasing and {112}<111> slip becoming dominant at later stages of deformation in both strain paths. This enhanced {112}<111> activity contributed to the strengthening of the α-fiber at the {114}<110> and γ-fiber at the {111}<110> texture components, thereby influencing strain hardening behaviour during deformation along both strain paths.http://www.sciencedirect.com/science/article/pii/S2238785425016035In-situ EBSDVPSC crystal plasticityContinuous strain path changeTextureSlip system activity |
| spellingShingle | Sisir Dhara Rahul Rakshit Sumit Hazra Sumantra Mandal Sushanta Kumar Panda Elucidating the deformation behaviour of DX54 steel under a continuous strain path change Journal of Materials Research and Technology In-situ EBSD VPSC crystal plasticity Continuous strain path change Texture Slip system activity |
| title | Elucidating the deformation behaviour of DX54 steel under a continuous strain path change |
| title_full | Elucidating the deformation behaviour of DX54 steel under a continuous strain path change |
| title_fullStr | Elucidating the deformation behaviour of DX54 steel under a continuous strain path change |
| title_full_unstemmed | Elucidating the deformation behaviour of DX54 steel under a continuous strain path change |
| title_short | Elucidating the deformation behaviour of DX54 steel under a continuous strain path change |
| title_sort | elucidating the deformation behaviour of dx54 steel under a continuous strain path change |
| topic | In-situ EBSD VPSC crystal plasticity Continuous strain path change Texture Slip system activity |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425016035 |
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