Effect of Si content on the microstructure and mechanical properties of 9Cr-ferritic/martensitic steels
9Cr-F/M−xSi (x = 0–1.0 wt%) steels were fabricated through vacuum induction melting technique and processed by hot forging, hot rolling, normalizing and tempering, subsequently. Their microstructure and mechanical properties were characterized using OM, SEM, TEM, Vickers hardness tester and tensile...
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Elsevier
2023-06-01
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| Series: | Nuclear Materials and Energy |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179123000674 |
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| author | G.J. Zhang Y. Zhou J.F. Yang H.Y. Yang M.M. Wang K. Jing Z.M. Xie L.C. Zhang R. Liu G. Li H. Wang L. Li Q.F. Fang X.P. Wang |
| author_facet | G.J. Zhang Y. Zhou J.F. Yang H.Y. Yang M.M. Wang K. Jing Z.M. Xie L.C. Zhang R. Liu G. Li H. Wang L. Li Q.F. Fang X.P. Wang |
| author_sort | G.J. Zhang |
| collection | DOAJ |
| description | 9Cr-F/M−xSi (x = 0–1.0 wt%) steels were fabricated through vacuum induction melting technique and processed by hot forging, hot rolling, normalizing and tempering, subsequently. Their microstructure and mechanical properties were characterized using OM, SEM, TEM, Vickers hardness tester and tensile tester. The steel has a typical ferrite/martensitic structure, with M23C6 and MX phases precipitated at the martensite lath boundary or in the lath. With Si content increasing, the average ultimate tensile strength (UTS) and hardness of 9Cr-F/M−xSi increase simultaneously from 678 MPa and 235 HV for 9Cr-F/M−0Si steel to 788 MPa and 265 HV for 9Cr-F/M−1.0Si steel, respectively, while the total elongation kept almost constant at 22.5%. The main strengthening mechanism is the solid solution strengthening due to silicon addition and the change in the carbide precipitation behavior caused no remarkable hardening contribution. These results can provide a reference for the composition design of structural materials for nuclear reactors. |
| first_indexed | 2024-03-13T04:44:34Z |
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| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-03-13T04:44:34Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
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| series | Nuclear Materials and Energy |
| spelling | doaj.art-8b2d5ff2a3fc4414993a46872ae4062e2023-06-19T04:28:27ZengElsevierNuclear Materials and Energy2352-17912023-06-0135101428Effect of Si content on the microstructure and mechanical properties of 9Cr-ferritic/martensitic steelsG.J. Zhang0Y. Zhou1J.F. Yang2H.Y. Yang3M.M. Wang4K. Jing5Z.M. Xie6L.C. Zhang7R. Liu8G. Li9H. Wang10L. Li11Q.F. Fang12X.P. Wang13Key Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Lu an Branch, Anhui Institute of Innovation for Industrial Technology, Lu’an 237100, China; Corresponding authors at: Key Laboratory of Materials Physics, Institute of Solid state Physics, Chinese Academy of Sciences, Hefei 230031, China.Key Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, ChinaScience and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu 610041, ChinaSchool of Mechanical Engineering, Chengdu University, Chengdu 610106, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, ChinaKey Laboratory of Materials Physic, Institute of Solid State Physics, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Corresponding authors at: Key Laboratory of Materials Physics, Institute of Solid state Physics, Chinese Academy of Sciences, Hefei 230031, China.9Cr-F/M−xSi (x = 0–1.0 wt%) steels were fabricated through vacuum induction melting technique and processed by hot forging, hot rolling, normalizing and tempering, subsequently. Their microstructure and mechanical properties were characterized using OM, SEM, TEM, Vickers hardness tester and tensile tester. The steel has a typical ferrite/martensitic structure, with M23C6 and MX phases precipitated at the martensite lath boundary or in the lath. With Si content increasing, the average ultimate tensile strength (UTS) and hardness of 9Cr-F/M−xSi increase simultaneously from 678 MPa and 235 HV for 9Cr-F/M−0Si steel to 788 MPa and 265 HV for 9Cr-F/M−1.0Si steel, respectively, while the total elongation kept almost constant at 22.5%. The main strengthening mechanism is the solid solution strengthening due to silicon addition and the change in the carbide precipitation behavior caused no remarkable hardening contribution. These results can provide a reference for the composition design of structural materials for nuclear reactors.http://www.sciencedirect.com/science/article/pii/S2352179123000674Ferrite/martensitic steelPrecipitateSiliconMicrostructureMechanical properties |
| spellingShingle | G.J. Zhang Y. Zhou J.F. Yang H.Y. Yang M.M. Wang K. Jing Z.M. Xie L.C. Zhang R. Liu G. Li H. Wang L. Li Q.F. Fang X.P. Wang Effect of Si content on the microstructure and mechanical properties of 9Cr-ferritic/martensitic steels Nuclear Materials and Energy Ferrite/martensitic steel Precipitate Silicon Microstructure Mechanical properties |
| title | Effect of Si content on the microstructure and mechanical properties of 9Cr-ferritic/martensitic steels |
| title_full | Effect of Si content on the microstructure and mechanical properties of 9Cr-ferritic/martensitic steels |
| title_fullStr | Effect of Si content on the microstructure and mechanical properties of 9Cr-ferritic/martensitic steels |
| title_full_unstemmed | Effect of Si content on the microstructure and mechanical properties of 9Cr-ferritic/martensitic steels |
| title_short | Effect of Si content on the microstructure and mechanical properties of 9Cr-ferritic/martensitic steels |
| title_sort | effect of si content on the microstructure and mechanical properties of 9cr ferritic martensitic steels |
| topic | Ferrite/martensitic steel Precipitate Silicon Microstructure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2352179123000674 |
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