Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting
The Nb-bearing grain-oriented silicon steel sheets were produced by conventional route and novel twin-roll casting route, respectively. The microstructure, texture and precipitate evolution were comparatively investigated by using electron backscattered diffraction (EBSD) and transmission electron m...
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MDPI AG
2020-08-01
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| Online Access: | https://www.mdpi.com/2075-4701/10/8/1085 |
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| author | Yang Wang Yuanxiang Zhang Feng Fang Xiang Lu Guo Yuan Guodong Wang |
| author_facet | Yang Wang Yuanxiang Zhang Feng Fang Xiang Lu Guo Yuan Guodong Wang |
| author_sort | Yang Wang |
| collection | DOAJ |
| description | The Nb-bearing grain-oriented silicon steel sheets were produced by conventional route and novel twin-roll casting route, respectively. The microstructure, texture and precipitate evolution were comparatively investigated by using electron backscattered diffraction (EBSD) and transmission electron microscope (TEM). The findings revealed that the precipitation behavior and the texture evolution were totally different between the two processing routes. In the conventional route, a great number of nanoscale niobium nitride particles (NbN), which acted as mainly grain growth inhibitors were precipitated during hot rolling, while in the twin-roll casting route, due to the rapid solidification, the precipitation of NbN were suppressed and a new type Nb-bearing precipitate enriched with sulfur element was observed in the as-cast strip. Besides, the primary recrystallized texture of conventional specimens was characterized by strong γ-fiber with a peak at {111} <110>, together with very few Goss components. While in the case of twin-roll casting specimens, the strongest primary recrystallized texture was {111} <112> texture and the area fraction of Goss component was much higher than that of conventional specimens. After final high temperature annealing, complete secondary recrystallization was obtained in twin-roll casting specimens and the magnetic induction of <i>B</i><sub>8</sub> was 0.1 T higher than that of conventional specimens. |
| first_indexed | 2024-03-10T17:37:04Z |
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| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T17:37:04Z |
| publishDate | 2020-08-01 |
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| spelling | doaj.art-f90105734cdb407f9eba8d610cf598dc2023-11-20T09:50:13ZengMDPI AGMetals2075-47012020-08-01108108510.3390/met10081085Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll CastingYang Wang0Yuanxiang Zhang1Feng Fang2Xiang Lu3Guo Yuan4Guodong Wang5State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaThe Nb-bearing grain-oriented silicon steel sheets were produced by conventional route and novel twin-roll casting route, respectively. The microstructure, texture and precipitate evolution were comparatively investigated by using electron backscattered diffraction (EBSD) and transmission electron microscope (TEM). The findings revealed that the precipitation behavior and the texture evolution were totally different between the two processing routes. In the conventional route, a great number of nanoscale niobium nitride particles (NbN), which acted as mainly grain growth inhibitors were precipitated during hot rolling, while in the twin-roll casting route, due to the rapid solidification, the precipitation of NbN were suppressed and a new type Nb-bearing precipitate enriched with sulfur element was observed in the as-cast strip. Besides, the primary recrystallized texture of conventional specimens was characterized by strong γ-fiber with a peak at {111} <110>, together with very few Goss components. While in the case of twin-roll casting specimens, the strongest primary recrystallized texture was {111} <112> texture and the area fraction of Goss component was much higher than that of conventional specimens. After final high temperature annealing, complete secondary recrystallization was obtained in twin-roll casting specimens and the magnetic induction of <i>B</i><sub>8</sub> was 0.1 T higher than that of conventional specimens.https://www.mdpi.com/2075-4701/10/8/1085niobium precipitatesgrain-oriented silicon steeltwin-roll strip castingtexturemicrostructure |
| spellingShingle | Yang Wang Yuanxiang Zhang Feng Fang Xiang Lu Guo Yuan Guodong Wang Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting Metals niobium precipitates grain-oriented silicon steel twin-roll strip casting texture microstructure |
| title | Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting |
| title_full | Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting |
| title_fullStr | Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting |
| title_full_unstemmed | Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting |
| title_short | Comparison of Precipitates and Texture Evolution in Nb-Bearing Grain-Oriented Silicon Steel Produced by Conventional Processing and Novel Twin-Roll Casting |
| title_sort | comparison of precipitates and texture evolution in nb bearing grain oriented silicon steel produced by conventional processing and novel twin roll casting |
| topic | niobium precipitates grain-oriented silicon steel twin-roll strip casting texture microstructure |
| url | https://www.mdpi.com/2075-4701/10/8/1085 |
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