Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic Deformation
In this paper, the effects of the deformation temperature, the deformation reduction and the deformation rate on the microstructural formation, ferritic and martensitic phase transformation, stress–strain behaviors and micro-hardness in low-carbon ferritic stainless steel were investigated...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/9/4/463 |
| _version_ | 1819097542037602304 |
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| author | Yi Shao Xiaohua Li Junjie Ma Chenxi Liu Zesheng Yan |
| author_facet | Yi Shao Xiaohua Li Junjie Ma Chenxi Liu Zesheng Yan |
| author_sort | Yi Shao |
| collection | DOAJ |
| description | In this paper, the effects of the deformation temperature, the deformation reduction and the deformation rate on the microstructural formation, ferritic and martensitic phase transformation, stress–strain behaviors and micro-hardness in low-carbon ferritic stainless steel were investigated. The increase in deformation temperature promotes the formation of the fine equiaxed dynamic strain-induced transformation ferrite and suppresses the martensitic transformation. The higher deformation temperature results in a lower starting temperature for martensitic transformation. The increase in deformation can effectively promote the transformation of DSIT ferrite, and decrease the martensitic transformation rate, which is caused by the work hardening effect on the metastable austenite. The increase in the deformation rate leads to an increase in the ferrite fraction, because a high density of dislocation remains that can provide sufficient nucleation sites for ferrite transformation. The slow deformation rate results in dynamic recovery according to the stress–strain curve. |
| first_indexed | 2024-12-22T00:16:44Z |
| format | Article |
| id | doaj.art-8c4eb00815984e05b95a326be85ece4a |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-22T00:16:44Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-8c4eb00815984e05b95a326be85ece4a2022-12-21T18:45:17ZengMDPI AGMetals2075-47012019-04-019446310.3390/met9040463met9040463Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic DeformationYi Shao0Xiaohua Li1Junjie Ma2Chenxi Liu3Zesheng Yan4State Key Lab of Hydraulic Engineering Simulation and Safety, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, ChinaState Key Lab of Hydraulic Engineering Simulation and Safety, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, ChinaState Key Lab of Hydraulic Engineering Simulation and Safety, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, ChinaState Key Lab of Hydraulic Engineering Simulation and Safety, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, ChinaState Key Lab of Hydraulic Engineering Simulation and Safety, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, ChinaIn this paper, the effects of the deformation temperature, the deformation reduction and the deformation rate on the microstructural formation, ferritic and martensitic phase transformation, stress–strain behaviors and micro-hardness in low-carbon ferritic stainless steel were investigated. The increase in deformation temperature promotes the formation of the fine equiaxed dynamic strain-induced transformation ferrite and suppresses the martensitic transformation. The higher deformation temperature results in a lower starting temperature for martensitic transformation. The increase in deformation can effectively promote the transformation of DSIT ferrite, and decrease the martensitic transformation rate, which is caused by the work hardening effect on the metastable austenite. The increase in the deformation rate leads to an increase in the ferrite fraction, because a high density of dislocation remains that can provide sufficient nucleation sites for ferrite transformation. The slow deformation rate results in dynamic recovery according to the stress–strain curve.https://www.mdpi.com/2075-4701/9/4/463ferritic stainless steelplastic deformationdynamic strain-induced transformation |
| spellingShingle | Yi Shao Xiaohua Li Junjie Ma Chenxi Liu Zesheng Yan Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic Deformation Metals ferritic stainless steel plastic deformation dynamic strain-induced transformation |
| title | Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic Deformation |
| title_full | Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic Deformation |
| title_fullStr | Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic Deformation |
| title_full_unstemmed | Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic Deformation |
| title_short | Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic Deformation |
| title_sort | microstructure formation of low carbon ferritic stainless steel during high temperature plastic deformation |
| topic | ferritic stainless steel plastic deformation dynamic strain-induced transformation |
| url | https://www.mdpi.com/2075-4701/9/4/463 |
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