Improved strength-plasticity in a lean duplex stainless steel through multiple cold rolling and short-term annealing
In this study, a lean duplex stainless steel (DSS) 2001 with a bimodal ferrite structure and fine austenite phase was obtained by innovative multiple cold rolling and short-term incomplete annealing. The yield strength of this bimodal structural stainless steel was significantly increased from 436.2...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425017600 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849744610292662272 |
|---|---|
| author | Jiale Zhang Yumeng Zhang Laizhu Jiang Xiangyong Xiao Qingmao Kong Xiaodong Wang Kolan Madhav Reddy |
| author_facet | Jiale Zhang Yumeng Zhang Laizhu Jiang Xiangyong Xiao Qingmao Kong Xiaodong Wang Kolan Madhav Reddy |
| author_sort | Jiale Zhang |
| collection | DOAJ |
| description | In this study, a lean duplex stainless steel (DSS) 2001 with a bimodal ferrite structure and fine austenite phase was obtained by innovative multiple cold rolling and short-term incomplete annealing. The yield strength of this bimodal structural stainless steel was significantly increased from 436.2 MPa to 640.2 MPa, while maintaining a high tensile strength of 929 MPa and elongation of about 52 %. Microstructural characterization reveals that combining multiple cold rolling with incomplete annealing promotes ferrite grain refinement and induces the formation of a bimodal grain structure through partial recrystallization. Additionally, staged annealing promotes nitrogen retention and subsequent enrichment in the austenite phase, thereby enhancing mechanical stability and inhibiting the occurrence of transformation induced plasticity (TRIP) effect at early deformation stage. This study offers valuable insights for optimizing alloy heat treatment and rolling process selection for such DSS. |
| format | Article |
| id | doaj-art-4acef3cbda6849bdb0352bacc4308b3e |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-4acef3cbda6849bdb0352bacc4308b3e2025-08-20T03:13:11ZengElsevierJournal of Materials Research and Technology2238-78542025-07-01374189419710.1016/j.jmrt.2025.07.102Improved strength-plasticity in a lean duplex stainless steel through multiple cold rolling and short-term annealingJiale Zhang0Yumeng Zhang1Laizhu Jiang2Xiangyong Xiao3Qingmao Kong4Xiaodong Wang5Kolan Madhav Reddy6State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR ChinaState Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR ChinaFujian Tsingtuo Special Steel Technology and Research Co., Ltd., Ningde, 355006, PR ChinaFujian Tsingtuo Special Steel Technology and Research Co., Ltd., Ningde, 355006, PR ChinaFujian Tsingtuo Special Steel Technology and Research Co., Ltd., Ningde, 355006, PR ChinaState Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Shanghai Key Laboratory of Hydrogen Science & Center of Hydrogen Science, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Corresponding author. State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Corresponding author.In this study, a lean duplex stainless steel (DSS) 2001 with a bimodal ferrite structure and fine austenite phase was obtained by innovative multiple cold rolling and short-term incomplete annealing. The yield strength of this bimodal structural stainless steel was significantly increased from 436.2 MPa to 640.2 MPa, while maintaining a high tensile strength of 929 MPa and elongation of about 52 %. Microstructural characterization reveals that combining multiple cold rolling with incomplete annealing promotes ferrite grain refinement and induces the formation of a bimodal grain structure through partial recrystallization. Additionally, staged annealing promotes nitrogen retention and subsequent enrichment in the austenite phase, thereby enhancing mechanical stability and inhibiting the occurrence of transformation induced plasticity (TRIP) effect at early deformation stage. This study offers valuable insights for optimizing alloy heat treatment and rolling process selection for such DSS.http://www.sciencedirect.com/science/article/pii/S2238785425017600Duplex stainless steelBimodal structureMechanical propertiesMicrostructural characterization |
| spellingShingle | Jiale Zhang Yumeng Zhang Laizhu Jiang Xiangyong Xiao Qingmao Kong Xiaodong Wang Kolan Madhav Reddy Improved strength-plasticity in a lean duplex stainless steel through multiple cold rolling and short-term annealing Journal of Materials Research and Technology Duplex stainless steel Bimodal structure Mechanical properties Microstructural characterization |
| title | Improved strength-plasticity in a lean duplex stainless steel through multiple cold rolling and short-term annealing |
| title_full | Improved strength-plasticity in a lean duplex stainless steel through multiple cold rolling and short-term annealing |
| title_fullStr | Improved strength-plasticity in a lean duplex stainless steel through multiple cold rolling and short-term annealing |
| title_full_unstemmed | Improved strength-plasticity in a lean duplex stainless steel through multiple cold rolling and short-term annealing |
| title_short | Improved strength-plasticity in a lean duplex stainless steel through multiple cold rolling and short-term annealing |
| title_sort | improved strength plasticity in a lean duplex stainless steel through multiple cold rolling and short term annealing |
| topic | Duplex stainless steel Bimodal structure Mechanical properties Microstructural characterization |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425017600 |
| work_keys_str_mv | AT jialezhang improvedstrengthplasticityinaleanduplexstainlesssteelthroughmultiplecoldrollingandshorttermannealing AT yumengzhang improvedstrengthplasticityinaleanduplexstainlesssteelthroughmultiplecoldrollingandshorttermannealing AT laizhujiang improvedstrengthplasticityinaleanduplexstainlesssteelthroughmultiplecoldrollingandshorttermannealing AT xiangyongxiao improvedstrengthplasticityinaleanduplexstainlesssteelthroughmultiplecoldrollingandshorttermannealing AT qingmaokong improvedstrengthplasticityinaleanduplexstainlesssteelthroughmultiplecoldrollingandshorttermannealing AT xiaodongwang improvedstrengthplasticityinaleanduplexstainlesssteelthroughmultiplecoldrollingandshorttermannealing AT kolanmadhavreddy improvedstrengthplasticityinaleanduplexstainlesssteelthroughmultiplecoldrollingandshorttermannealing |