Influence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheets
Three kinds of 6061 aluminum alloy cast-rolled plates with Mg/Si mass ratios of 1.23, 1.45, and 1.7 are prepared using NF6–300 vertical twin-roll casting and rolling mill. Metallurgical microscope (OM), x-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS)...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ad1e0e |
| _version_ | 1797347477089681408 |
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| author | Yu-Chong Sun Yao-Hui Jin Zhen Xu Tan Zhao Ning Wang Long-Hao Zhu Jie Geng |
| author_facet | Yu-Chong Sun Yao-Hui Jin Zhen Xu Tan Zhao Ning Wang Long-Hao Zhu Jie Geng |
| author_sort | Yu-Chong Sun |
| collection | DOAJ |
| description | Three kinds of 6061 aluminum alloy cast-rolled plates with Mg/Si mass ratios of 1.23, 1.45, and 1.7 are prepared using NF6–300 vertical twin-roll casting and rolling mill. Metallurgical microscope (OM), x-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), room temperature tensile test, and other analysis methods studied the influence law and mechanism of Mg/Si ratio on the microstructure and texture of 6061 cast-rolled sheet. The best Mg/Si ratio cast-rolled sheet is then analyzed for formability. Research indicates that with increasing Mg/Si ratio, the grain size shows first decreasing and then increasing trend. Morphology of precipitated phases at the edge and the central of the sheet are different, however, the texture type has no obvious change, and a strong {112} 〈110〉 texture and weaker rotating cube {001} 〈110〉 texture is always observed. When the Mg/Si ratio is 1.45, the average grain size is the smallest, the edge size is 39.78 μ m, the central size is 31.31 μ m, and the precipitated phase is evenly distributed at the edge and central of the cast-rolled sheet. In addition, the elongation reaches 8.9%, the n-value is 0.072, and the r-value is 1.161 when the cast-rolled sheet reaches 90° along the cast-rolled direction under T6 state heat treatment. |
| first_indexed | 2024-03-08T11:48:20Z |
| format | Article |
| id | doaj.art-482ba306feeb4f559b6d25a4725ce608 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-08T11:48:20Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-482ba306feeb4f559b6d25a4725ce6082024-01-24T15:26:25ZengIOP PublishingMaterials Research Express2053-15912024-01-0111101651610.1088/2053-1591/ad1e0eInfluence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheetsYu-Chong Sun0https://orcid.org/0009-0004-8907-3528Yao-Hui Jin1Zhen Xu2Tan Zhao3Ning Wang4Long-Hao Zhu5Jie Geng6School of Material and Metallurgy, University of Science and Technology Liaoning , Anshan 114051, People’s Republic of ChinaState Key Laboratory of Metal Material For Marine Equipment and Application, Anshan 114051, People’s Republic of ChinaSchool of Material and Metallurgy, University of Science and Technology Liaoning , Anshan 114051, People’s Republic of ChinaState Key Laboratory of Metal Material For Marine Equipment and Application, Anshan 114051, People’s Republic of ChinaSchool of Material and Metallurgy, University of Science and Technology Liaoning , Anshan 114051, People’s Republic of ChinaState Key Laboratory of Metal Material For Marine Equipment and Application, Anshan 114051, People’s Republic of ChinaSchool of Material and Metallurgy, University of Science and Technology Liaoning , Anshan 114051, People’s Republic of ChinaThree kinds of 6061 aluminum alloy cast-rolled plates with Mg/Si mass ratios of 1.23, 1.45, and 1.7 are prepared using NF6–300 vertical twin-roll casting and rolling mill. Metallurgical microscope (OM), x-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), room temperature tensile test, and other analysis methods studied the influence law and mechanism of Mg/Si ratio on the microstructure and texture of 6061 cast-rolled sheet. The best Mg/Si ratio cast-rolled sheet is then analyzed for formability. Research indicates that with increasing Mg/Si ratio, the grain size shows first decreasing and then increasing trend. Morphology of precipitated phases at the edge and the central of the sheet are different, however, the texture type has no obvious change, and a strong {112} 〈110〉 texture and weaker rotating cube {001} 〈110〉 texture is always observed. When the Mg/Si ratio is 1.45, the average grain size is the smallest, the edge size is 39.78 μ m, the central size is 31.31 μ m, and the precipitated phase is evenly distributed at the edge and central of the cast-rolled sheet. In addition, the elongation reaches 8.9%, the n-value is 0.072, and the r-value is 1.161 when the cast-rolled sheet reaches 90° along the cast-rolled direction under T6 state heat treatment.https://doi.org/10.1088/2053-1591/ad1e0e6061twin-roll castingMg/Si ratioformability |
| spellingShingle | Yu-Chong Sun Yao-Hui Jin Zhen Xu Tan Zhao Ning Wang Long-Hao Zhu Jie Geng Influence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheets Materials Research Express 6061 twin-roll casting Mg/Si ratio formability |
| title | Influence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheets |
| title_full | Influence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheets |
| title_fullStr | Influence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheets |
| title_full_unstemmed | Influence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheets |
| title_short | Influence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheets |
| title_sort | influence of mg si ratio on the microstructure and formability of 6061 cast rolled sheets |
| topic | 6061 twin-roll casting Mg/Si ratio formability |
| url | https://doi.org/10.1088/2053-1591/ad1e0e |
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