Effect of Warm Rolling Temperature on the Microstructure and Texture of Microcarbon Dual-Phase (DP) Steel
The effect of warm rolling temperature on microstructure and texture of microcarbon dual-phase (DP) steel was investigated through scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). The results showed that with the increase of rol...
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MDPI AG
2020-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/5/566 |
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| author | Qiangqiang Yuan Zhigang Wang Yinghui Zhang Jieyun Ye Yao Huang Ankang Huang |
| author_facet | Qiangqiang Yuan Zhigang Wang Yinghui Zhang Jieyun Ye Yao Huang Ankang Huang |
| author_sort | Qiangqiang Yuan |
| collection | DOAJ |
| description | The effect of warm rolling temperature on microstructure and texture of microcarbon dual-phase (DP) steel was investigated through scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). The results showed that with the increase of rolling temperature, the density and thickness of the deformation band first increased and then decreased. Ferrite and fine martensite were observed in the annealed sheet, and the ferrite had a much more homogeneous distribution in the sample rolled at 450 °C. During warm rolling, the ferrite developed a dominant γ-fiber and a weak α-texture. During the annealing of the rolled sheet, the intensity of the γ-fiber was increased and a weak {001}<100> texture developed in the sample rolled at room temperature. An increase in the rolling temperature generated an initial decrease and subsequent increase in the strength of the unfavorable {001}<110> texture in the annealed sheet. In addition, the strength reached a maximum at 550 °C due to an increase in the dissolved carbon in the matrix, which was result of carbide dissolution. By contrast, the intensity of the γ-fiber remained relatively higher and was deemed the weaker {001}<110> component in the annealed sheet rolled at 450 °C. Therefore, a larger texture factor (<i>f<sub>γ-fiber</sub></i>/<i>f</i><sub>(<i>α-fiber+λ-fiber</i>)</sub>) can be produced under this process. |
| first_indexed | 2024-03-10T20:11:14Z |
| format | Article |
| id | doaj.art-3833032fe7294f92af30383027cd28f9 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T20:11:14Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-3833032fe7294f92af30383027cd28f92023-11-19T22:52:37ZengMDPI AGMetals2075-47012020-04-0110556610.3390/met10050566Effect of Warm Rolling Temperature on the Microstructure and Texture of Microcarbon Dual-Phase (DP) SteelQiangqiang Yuan0Zhigang Wang1Yinghui Zhang2Jieyun Ye3Yao Huang4Ankang Huang5School of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaThe effect of warm rolling temperature on microstructure and texture of microcarbon dual-phase (DP) steel was investigated through scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). The results showed that with the increase of rolling temperature, the density and thickness of the deformation band first increased and then decreased. Ferrite and fine martensite were observed in the annealed sheet, and the ferrite had a much more homogeneous distribution in the sample rolled at 450 °C. During warm rolling, the ferrite developed a dominant γ-fiber and a weak α-texture. During the annealing of the rolled sheet, the intensity of the γ-fiber was increased and a weak {001}<100> texture developed in the sample rolled at room temperature. An increase in the rolling temperature generated an initial decrease and subsequent increase in the strength of the unfavorable {001}<110> texture in the annealed sheet. In addition, the strength reached a maximum at 550 °C due to an increase in the dissolved carbon in the matrix, which was result of carbide dissolution. By contrast, the intensity of the γ-fiber remained relatively higher and was deemed the weaker {001}<110> component in the annealed sheet rolled at 450 °C. Therefore, a larger texture factor (<i>f<sub>γ-fiber</sub></i>/<i>f</i><sub>(<i>α-fiber+λ-fiber</i>)</sub>) can be produced under this process.https://www.mdpi.com/2075-4701/10/5/566Nb-Cr micro-alloying steelwarm rollingtexturemicrostructuresdeformation band |
| spellingShingle | Qiangqiang Yuan Zhigang Wang Yinghui Zhang Jieyun Ye Yao Huang Ankang Huang Effect of Warm Rolling Temperature on the Microstructure and Texture of Microcarbon Dual-Phase (DP) Steel Metals Nb-Cr micro-alloying steel warm rolling texture microstructures deformation band |
| title | Effect of Warm Rolling Temperature on the Microstructure and Texture of Microcarbon Dual-Phase (DP) Steel |
| title_full | Effect of Warm Rolling Temperature on the Microstructure and Texture of Microcarbon Dual-Phase (DP) Steel |
| title_fullStr | Effect of Warm Rolling Temperature on the Microstructure and Texture of Microcarbon Dual-Phase (DP) Steel |
| title_full_unstemmed | Effect of Warm Rolling Temperature on the Microstructure and Texture of Microcarbon Dual-Phase (DP) Steel |
| title_short | Effect of Warm Rolling Temperature on the Microstructure and Texture of Microcarbon Dual-Phase (DP) Steel |
| title_sort | effect of warm rolling temperature on the microstructure and texture of microcarbon dual phase dp steel |
| topic | Nb-Cr micro-alloying steel warm rolling texture microstructures deformation band |
| url | https://www.mdpi.com/2075-4701/10/5/566 |
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