Positive strain rate dependence: optimizing TRIP effect for high-speed deformation in lean duplex stainless steel
We developed a unique lean duplex stainless steel with a highly unstable austenite phase, exhibiting positive strain rate dependence in tensile properties. Specifically, increased strain rates enhanced the strength-ductility synergy. Adiabatic heating was actively utilized to stabilize austenite, ex...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-01-01
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| Series: | Materials Research Letters |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2024.2415903 |
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| author | Yongxin Wang Lei Chen Xingzhou Cai Motomichi Koyama Zhenting Wang Xiaolong Li Zhikun Bai Xiaocong Ma Miao Jin |
| author_facet | Yongxin Wang Lei Chen Xingzhou Cai Motomichi Koyama Zhenting Wang Xiaolong Li Zhikun Bai Xiaocong Ma Miao Jin |
| author_sort | Yongxin Wang |
| collection | DOAJ |
| description | We developed a unique lean duplex stainless steel with a highly unstable austenite phase, exhibiting positive strain rate dependence in tensile properties. Specifically, increased strain rates enhanced the strength-ductility synergy. Adiabatic heating was actively utilized to stabilize austenite, extending the TRIP effect over a wide strain range and maintaining high strain hardening rates until a large strain particularly at high strain rates. Additionally, brittle cracking in ferrite and martensite was significantly reduced with increasing strain rate, resulting in a brittle-to-ductile transition. This discovery offers novel insights into alloy design strategies for metastable steels, improving production efficiency in forming processes. |
| format | Article |
| id | doaj-art-cdc9f121598644c593fec8e401dbb99b |
| institution | Kabale University |
| issn | 2166-3831 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj-art-cdc9f121598644c593fec8e401dbb99b2025-01-08T06:03:51ZengTaylor & Francis GroupMaterials Research Letters2166-38312025-01-01131425010.1080/21663831.2024.2415903Positive strain rate dependence: optimizing TRIP effect for high-speed deformation in lean duplex stainless steelYongxin Wang0Lei Chen1Xingzhou Cai2Motomichi Koyama3Zhenting Wang4Xiaolong Li5Zhikun Bai6Xiaocong Ma7Miao Jin8School of Mechanical Engineering, Yanshan University, Qinhuangdao, People’s Republic of ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao, People’s Republic of ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao, People’s Republic of ChinaInstitute for Materials Research, Tohoku University, Sendai, JapanInstitute for Materials Research, Tohoku University, Sendai, JapanSchool of Mechanical Engineering, Yanshan University, Qinhuangdao, People’s Republic of ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao, People’s Republic of ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao, People’s Republic of ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao, People’s Republic of ChinaWe developed a unique lean duplex stainless steel with a highly unstable austenite phase, exhibiting positive strain rate dependence in tensile properties. Specifically, increased strain rates enhanced the strength-ductility synergy. Adiabatic heating was actively utilized to stabilize austenite, extending the TRIP effect over a wide strain range and maintaining high strain hardening rates until a large strain particularly at high strain rates. Additionally, brittle cracking in ferrite and martensite was significantly reduced with increasing strain rate, resulting in a brittle-to-ductile transition. This discovery offers novel insights into alloy design strategies for metastable steels, improving production efficiency in forming processes.https://www.tandfonline.com/doi/10.1080/21663831.2024.2415903Lean duplex stainless steelstrain rateaustenite stabilityTransformation-Induced Plasticity (TRIP) effectfracture behavior |
| spellingShingle | Yongxin Wang Lei Chen Xingzhou Cai Motomichi Koyama Zhenting Wang Xiaolong Li Zhikun Bai Xiaocong Ma Miao Jin Positive strain rate dependence: optimizing TRIP effect for high-speed deformation in lean duplex stainless steel Materials Research Letters Lean duplex stainless steel strain rate austenite stability Transformation-Induced Plasticity (TRIP) effect fracture behavior |
| title | Positive strain rate dependence: optimizing TRIP effect for high-speed deformation in lean duplex stainless steel |
| title_full | Positive strain rate dependence: optimizing TRIP effect for high-speed deformation in lean duplex stainless steel |
| title_fullStr | Positive strain rate dependence: optimizing TRIP effect for high-speed deformation in lean duplex stainless steel |
| title_full_unstemmed | Positive strain rate dependence: optimizing TRIP effect for high-speed deformation in lean duplex stainless steel |
| title_short | Positive strain rate dependence: optimizing TRIP effect for high-speed deformation in lean duplex stainless steel |
| title_sort | positive strain rate dependence optimizing trip effect for high speed deformation in lean duplex stainless steel |
| topic | Lean duplex stainless steel strain rate austenite stability Transformation-Induced Plasticity (TRIP) effect fracture behavior |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2024.2415903 |
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