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http://bura.brunel.ac.uk/handle/2438/18089
Title: | Thermomechanical Treatment of High-Shear Melt-Conditioned Twin-Roll Cast Strip of Recycled AA5754 Alloy |
Authors: | Al-Helal, K Chang, I Patel, JB Fan, Z |
Issue Date: | 2-Nov-2018 |
Publisher: | Springer Verlag |
Citation: | Al-Helal, K. et al. (2018) 'Thermomechanical Treatment of High-Shear Melt-Conditioned Twin-Roll Cast Strip of Recycled AA5754 Alloy', JOM, 71 (6), pp. 2018 - 2024. doi: 10.1007/s11837-018-3190-8. |
Abstract: | A continuous high-shear melt conditioning twin-roll casting process has been developed for production of recycled aluminum alloy strip with minimum casting defects. High-shear melt conditioning is applied to increase the impurities tolerance of recycled aluminum. The results of this study showed that solidification during twin-roll casting can be controlled by using intensive melt conditioning prior to casting, which can promote equiaxed growth with minimal defects and result in improved sheet quality. Melt-conditioned twin-roll cast (MC-TRC) AA5754 alloy exhibited fine equiaxed grains and homogenized matrix structure while centerline segregation was eliminated. As-cast melt-conditioned twin-roll cast AA5754 strips showed clear grain recrystallization after thermomechanical treatment at 430°C for 30 min, representing an improvement over conventional twin-roll casting. The MC-TRC strip showed 57.2% higher elongation and 4.1% higher ultimate tensile strength compared with the TRC strip after applying melt conditioning with thermomechanical treatment. |
URI: | https://bura.brunel.ac.uk/handle/2438/18089 |
DOI: | https://doi.org/10.1007/s11837-018-3190-8 |
ISSN: | 1047-4838 |
Appears in Collections: | Brunel Centre for Advanced Solidification Technology (BCAST) |
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FullText.pdf | 1.69 MB | Adobe PDF | View/Open |
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