Roles of Silicon Content and Normalization Temperature on Cold Workability and Recrystallization of High-Grade Non-Oriented Silicon Steel
In order to decrease the difficulty of cold workability and study the recrystallization behavior of high-grade non-oriented silicon steel, Si content and normalization temperature were optimized simultaneously. The microstructure and texture of both hot-rolled sheet and normalized annealing sheet pr...
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MDPI AG
2022-04-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/12/5/593 |
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| author | Yuan Lin Hongxia Wang Shijia Wang Wenkang Zhang Lixia Wang Zhiyuan Feng Yide Wang |
| author_facet | Yuan Lin Hongxia Wang Shijia Wang Wenkang Zhang Lixia Wang Zhiyuan Feng Yide Wang |
| author_sort | Yuan Lin |
| collection | DOAJ |
| description | In order to decrease the difficulty of cold workability and study the recrystallization behavior of high-grade non-oriented silicon steel, Si content and normalization temperature were optimized simultaneously. The microstructure and texture of both hot-rolled sheet and normalized annealing sheet presented a gradient distribution. With the decrease in Si content from 3.02% to 2.54% and increase in normalization temperature from 850 °C to 920 °C, Goss texture ({110}<001>) intensity at surface layer and α-fiber (<110>//RD) texture intensity were strengthened, and α-fiber texture gradually turned to α*-fiber ({1 1 h}<1/h 1 2>) in the normalized annealing sheet. Recrystallization ratio and recrystallization grain size were increased both in the hot-rolled sheet and the normalized annealing sheet. The tensile strength and yield strength of normalized annealing sheet were reduced by 65 Mpa, which decreased the cold workability difficulty and improved cold rolling yield. The cold rolled microstructure had wider shear bands which nucleated earlier but recrystallized velocity was slower because of lower cold rolled energy storage during interval recrystallization annealing, resulting in a more heterogeneous grain size distribution in the final annealing sheet. |
| first_indexed | 2024-03-10T03:05:54Z |
| format | Article |
| id | doaj.art-90919b51f4cd49f5a327a140f220e25b |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T03:05:54Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-90919b51f4cd49f5a327a140f220e25b2023-11-23T10:34:10ZengMDPI AGCrystals2073-43522022-04-0112559310.3390/cryst12050593Roles of Silicon Content and Normalization Temperature on Cold Workability and Recrystallization of High-Grade Non-Oriented Silicon SteelYuan Lin0Hongxia Wang1Shijia Wang2Wenkang Zhang3Lixia Wang4Zhiyuan Feng5Yide Wang6College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaTechnical Center, Taiyuan Iron & Steel (Group) Co., Ltd., Taiyuan 030003, ChinaTechnical Center, Taiyuan Iron & Steel (Group) Co., Ltd., Taiyuan 030003, ChinaSchool of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaIn order to decrease the difficulty of cold workability and study the recrystallization behavior of high-grade non-oriented silicon steel, Si content and normalization temperature were optimized simultaneously. The microstructure and texture of both hot-rolled sheet and normalized annealing sheet presented a gradient distribution. With the decrease in Si content from 3.02% to 2.54% and increase in normalization temperature from 850 °C to 920 °C, Goss texture ({110}<001>) intensity at surface layer and α-fiber (<110>//RD) texture intensity were strengthened, and α-fiber texture gradually turned to α*-fiber ({1 1 h}<1/h 1 2>) in the normalized annealing sheet. Recrystallization ratio and recrystallization grain size were increased both in the hot-rolled sheet and the normalized annealing sheet. The tensile strength and yield strength of normalized annealing sheet were reduced by 65 Mpa, which decreased the cold workability difficulty and improved cold rolling yield. The cold rolled microstructure had wider shear bands which nucleated earlier but recrystallized velocity was slower because of lower cold rolled energy storage during interval recrystallization annealing, resulting in a more heterogeneous grain size distribution in the final annealing sheet.https://www.mdpi.com/2073-4352/12/5/593high-grade non-oriented silicon steelSi contentnormalization temperatureworkabilityrecrystallization behavior |
| spellingShingle | Yuan Lin Hongxia Wang Shijia Wang Wenkang Zhang Lixia Wang Zhiyuan Feng Yide Wang Roles of Silicon Content and Normalization Temperature on Cold Workability and Recrystallization of High-Grade Non-Oriented Silicon Steel Crystals high-grade non-oriented silicon steel Si content normalization temperature workability recrystallization behavior |
| title | Roles of Silicon Content and Normalization Temperature on Cold Workability and Recrystallization of High-Grade Non-Oriented Silicon Steel |
| title_full | Roles of Silicon Content and Normalization Temperature on Cold Workability and Recrystallization of High-Grade Non-Oriented Silicon Steel |
| title_fullStr | Roles of Silicon Content and Normalization Temperature on Cold Workability and Recrystallization of High-Grade Non-Oriented Silicon Steel |
| title_full_unstemmed | Roles of Silicon Content and Normalization Temperature on Cold Workability and Recrystallization of High-Grade Non-Oriented Silicon Steel |
| title_short | Roles of Silicon Content and Normalization Temperature on Cold Workability and Recrystallization of High-Grade Non-Oriented Silicon Steel |
| title_sort | roles of silicon content and normalization temperature on cold workability and recrystallization of high grade non oriented silicon steel |
| topic | high-grade non-oriented silicon steel Si content normalization temperature workability recrystallization behavior |
| url | https://www.mdpi.com/2073-4352/12/5/593 |
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