Microstructure evolution of Fe-33Mn-4Si steel during low-cycle fatigue deformation
The microstructure evolution and mechanical behavior of an Fe-33Mn-4Si alloy steel under low-cycle fatigue deformation were investigated by using the X-ray diffraction and electron backscatter diffraction techniques.Results show that the experimental steel has an initial microstructure consisting of...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2022-04-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000556 |
| _version_ | 1797963806178017280 |
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| author | SUN Qidi YANG Weitao HAO Qingguo GUAN Xiaohu ZHANG Bin YANG Qi |
| author_facet | SUN Qidi YANG Weitao HAO Qingguo GUAN Xiaohu ZHANG Bin YANG Qi |
| author_sort | SUN Qidi |
| collection | DOAJ |
| description | The microstructure evolution and mechanical behavior of an Fe-33Mn-4Si alloy steel under low-cycle fatigue deformation were investigated by using the X-ray diffraction and electron backscatter diffraction techniques.Results show that the experimental steel has an initial microstructure consisting of austenite and thermally induced ε-martensite. The initial microstructure remarkably affects the low-cycle fatigue property of the experimental steel through influencing the ε-martensitic transformation during deformation. At the early stage of fatigue deformation (first 100 deformation cycles), with increasing deformation cycles, a rapid increase in the volume fraction of ε-martensite and the frequency of the intersection of ε-martensite with different variants result in a quick rise in cyclic average peak stress and work hardening degree. With the continuation of cyclic deformation up to fatigue fracture, the ε-martensite becomes the dominant constituent phase in the deformation microstructure, and the volume fraction of ε-martensite and the frequency of the intersection of ε-martensite increase at an appreciably slower rate, thereafter significantly slowing the increase in cyclic average peak stress and work hardening degree. |
| first_indexed | 2024-04-11T01:34:04Z |
| format | Article |
| id | doaj.art-c8aac35de2084df2940da59b93499fa6 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T01:34:04Z |
| publishDate | 2022-04-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-c8aac35de2084df2940da59b93499fa62023-01-03T09:11:53ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812022-04-0150416217110.11868/j.issn.1001-4381.2021.00055620220417Microstructure evolution of Fe-33Mn-4Si steel during low-cycle fatigue deformationSUN Qidi0YANG Weitao1HAO Qingguo2GUAN Xiaohu3ZHANG Bin4YANG Qi5Shanghai Research Institute of Materials, Shanghai 200437, ChinaShanghai Research Institute of Materials, Shanghai 200437, ChinaShanghai Research Institute of Materials, Shanghai 200437, ChinaSchool of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, ChinaAnalytical Applications Center, Shimadzu (China) Co., Ltd.Shanghai Branch, Shanghai 200233, ChinaShanghai Research Institute of Materials, Shanghai 200437, ChinaThe microstructure evolution and mechanical behavior of an Fe-33Mn-4Si alloy steel under low-cycle fatigue deformation were investigated by using the X-ray diffraction and electron backscatter diffraction techniques.Results show that the experimental steel has an initial microstructure consisting of austenite and thermally induced ε-martensite. The initial microstructure remarkably affects the low-cycle fatigue property of the experimental steel through influencing the ε-martensitic transformation during deformation. At the early stage of fatigue deformation (first 100 deformation cycles), with increasing deformation cycles, a rapid increase in the volume fraction of ε-martensite and the frequency of the intersection of ε-martensite with different variants result in a quick rise in cyclic average peak stress and work hardening degree. With the continuation of cyclic deformation up to fatigue fracture, the ε-martensite becomes the dominant constituent phase in the deformation microstructure, and the volume fraction of ε-martensite and the frequency of the intersection of ε-martensite increase at an appreciably slower rate, thereafter significantly slowing the increase in cyclic average peak stress and work hardening degree.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000556fe-mn-si steellow-cycle fatigue deformationmicrostructure evolutionε-martensiteannealing twin |
| spellingShingle | SUN Qidi YANG Weitao HAO Qingguo GUAN Xiaohu ZHANG Bin YANG Qi Microstructure evolution of Fe-33Mn-4Si steel during low-cycle fatigue deformation Cailiao gongcheng fe-mn-si steel low-cycle fatigue deformation microstructure evolution ε-martensite annealing twin |
| title | Microstructure evolution of Fe-33Mn-4Si steel during low-cycle fatigue deformation |
| title_full | Microstructure evolution of Fe-33Mn-4Si steel during low-cycle fatigue deformation |
| title_fullStr | Microstructure evolution of Fe-33Mn-4Si steel during low-cycle fatigue deformation |
| title_full_unstemmed | Microstructure evolution of Fe-33Mn-4Si steel during low-cycle fatigue deformation |
| title_short | Microstructure evolution of Fe-33Mn-4Si steel during low-cycle fatigue deformation |
| title_sort | microstructure evolution of fe 33mn 4si steel during low cycle fatigue deformation |
| topic | fe-mn-si steel low-cycle fatigue deformation microstructure evolution ε-martensite annealing twin |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000556 |
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