An investigation on anomalous deformation behavior in SUS304 austenitic stainless steel: Experiments and simulations
During tensile testing of thin specimen made of metastable austenitic stainless steels, the movement of the X-shaped localized deformation band (LDB) accompanied by stress serrations was observed. Investigating this anomalous deformation behavior is crucial to enhancing the performance and applicabi...
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425002601 |
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| author | Bo Cao Ruihe Liu Chong Gao Qian Sun Xiaojun Tan Takeshi Iwamoto Tadanori Sugino |
| author_facet | Bo Cao Ruihe Liu Chong Gao Qian Sun Xiaojun Tan Takeshi Iwamoto Tadanori Sugino |
| author_sort | Bo Cao |
| collection | DOAJ |
| description | During tensile testing of thin specimen made of metastable austenitic stainless steels, the movement of the X-shaped localized deformation band (LDB) accompanied by stress serrations was observed. Investigating this anomalous deformation behavior is crucial to enhancing the performance and applicability of these steels. In this study, tensile tests were conducted on thin tensile specimens of SUS304 stainless steel at various strain rates, and the movement of the LDB was captured using the conventional digital image correlation (DIC) method. To reproduce the phenomenon of LDB movement, 3D finite element analysis was performed, where dynamic strain aging (DSA) is considered for the reference stress of the austenitic and martensitic phases, respectively. The analytical model focused on a 1/8 region, and the 1/4 regions were extended in the longitudinal and width directions to represent characteristic features. A modified mathematical model of DSA was employed, with parameter adjustments to better reproduce the observed behavior. Additionally, environmental temperature was also varied to study its effect on the deformation behavior of thin plate and round bars, allowing for a comparison of their differences. These investigations provide deeper insight into the mechanisms underlying the anomalous deformation behavior in SUS304 stainless steel. |
| format | Article |
| id | doaj-art-451fe806f9ee4576afefa183b3f6c652 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-451fe806f9ee4576afefa183b3f6c6522025-08-20T03:11:33ZengElsevierJournal of Materials Research and Technology2238-78542025-03-01353705372710.1016/j.jmrt.2025.02.013An investigation on anomalous deformation behavior in SUS304 austenitic stainless steel: Experiments and simulationsBo Cao0Ruihe Liu1Chong Gao2Qian Sun3Xiaojun Tan4Takeshi Iwamoto5Tadanori Sugino6School of Civil Aviation, Northwestern Polytechnical University, Xi'an, 710072, China; Corresponding author.Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, JapanFaculty of Science and Engineering, Ritsumeikan University, 1-1-1 Noji-Higashi Kusatsu, 525-8577, JapanSchool of Civil Aviation, Northwestern Polytechnical University, Xi'an, 710072, ChinaSchool of Civil Aviation, Northwestern Polytechnical University, Xi'an, 710072, ChinaAcademy of Science and Technology, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan; Corresponding author.Information Science and Technology Department, Oshima National College of Maritime Technology, Yamaguchi, 742-2193, JapanDuring tensile testing of thin specimen made of metastable austenitic stainless steels, the movement of the X-shaped localized deformation band (LDB) accompanied by stress serrations was observed. Investigating this anomalous deformation behavior is crucial to enhancing the performance and applicability of these steels. In this study, tensile tests were conducted on thin tensile specimens of SUS304 stainless steel at various strain rates, and the movement of the LDB was captured using the conventional digital image correlation (DIC) method. To reproduce the phenomenon of LDB movement, 3D finite element analysis was performed, where dynamic strain aging (DSA) is considered for the reference stress of the austenitic and martensitic phases, respectively. The analytical model focused on a 1/8 region, and the 1/4 regions were extended in the longitudinal and width directions to represent characteristic features. A modified mathematical model of DSA was employed, with parameter adjustments to better reproduce the observed behavior. Additionally, environmental temperature was also varied to study its effect on the deformation behavior of thin plate and round bars, allowing for a comparison of their differences. These investigations provide deeper insight into the mechanisms underlying the anomalous deformation behavior in SUS304 stainless steel.http://www.sciencedirect.com/science/article/pii/S2238785425002601Austenitic stainless steelLüders bandPortevin Le-Chatelier effectDynamic strain agingStrain-induced martensitic transformation |
| spellingShingle | Bo Cao Ruihe Liu Chong Gao Qian Sun Xiaojun Tan Takeshi Iwamoto Tadanori Sugino An investigation on anomalous deformation behavior in SUS304 austenitic stainless steel: Experiments and simulations Journal of Materials Research and Technology Austenitic stainless steel Lüders band Portevin Le-Chatelier effect Dynamic strain aging Strain-induced martensitic transformation |
| title | An investigation on anomalous deformation behavior in SUS304 austenitic stainless steel: Experiments and simulations |
| title_full | An investigation on anomalous deformation behavior in SUS304 austenitic stainless steel: Experiments and simulations |
| title_fullStr | An investigation on anomalous deformation behavior in SUS304 austenitic stainless steel: Experiments and simulations |
| title_full_unstemmed | An investigation on anomalous deformation behavior in SUS304 austenitic stainless steel: Experiments and simulations |
| title_short | An investigation on anomalous deformation behavior in SUS304 austenitic stainless steel: Experiments and simulations |
| title_sort | investigation on anomalous deformation behavior in sus304 austenitic stainless steel experiments and simulations |
| topic | Austenitic stainless steel Lüders band Portevin Le-Chatelier effect Dynamic strain aging Strain-induced martensitic transformation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425002601 |
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