Abstract
Mathematical modeling of casting of Al-33 wt. % Cu strips in a twin roll caster at speeds varying between 10 to 200 rpm (0.079 m/s–1.59 m/s) has been developed. The mathematical model involves solution of coupled fluid flow and energy equations, which incorporated phase change using enthalpy-porosity method. The simulation results suggests that at high casting speed strips will have layered structure, due to direct contact of the strand with Cu rolls resulting in outer solid layer having fine lamellar structure and slow cooling/solidification of the remaining liquid. Al-33 wt. % Cu alloy could be cast into strips at speed of 100 rpm (0.79 m/s) using vertical twin roll caster. As per the prediction of mathematical model, distinct layered structure forms when casting was carried out at high speed. Thus, layered structure could be directly cast using a twin roll caster.
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Sahoo, S., Ghosh, S. (2013). High speed twin roll casting of Al-33 wt. % Cu strips with layered structure -Inspired by mathematical modeling. In: Zhang, L., Allanore, A., Wang, C., Yurko, J.A., Crapps, J. (eds) Materials Processing Fundamentals. Springer, Cham. https://doi.org/10.1007/978-3-319-48197-5_16
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DOI: https://doi.org/10.1007/978-3-319-48197-5_16
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48584-3
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