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dc.contributor.authorHuang, Y-
dc.contributor.authorBayandorian, I-
dc.contributor.authorFan, Z-
dc.identifier.citationIOP Conference Series: Materials Science and Engineering, 27: 012065, (2011)en_US
dc.description.abstractThe existing twin roll casting technique for magnesium alloys suffers heterogeneity in both microstructure and chemistry and downstream processing is required to improve the strip quality, resulting in cost rise. In the present work, twin roll casting was carried out using an AZ31 magnesium alloy, with the application of intensive shearing melt conditioning prior to casting. The effect of process parameters such as pouring temperature and casting speed on microstructure control during casting and subsequent downstream processing was studied. Experimental results showed that the melt conditioning treatment allowed the production of AZ31 strips with uniform and refined microstructure free of centreline segregations. It was also shown that an optimized combination of pouring temperature and casting speed, in conjunction with a strip thickness control operation, resulted in uniformly distributed stored energies due to enhanced plastic deformation, which promoted recrystallization during casting and subsequent heat treatment. Strips prepared by twin roll casting and homogenization developed similar microstructural features to those prepared by twin roll casting followed by lengthy downstream processing by homogenization, hot rolling and annealing and displayed a weaker basal texture, exhibiting a potentially better formability.en_US
dc.description.sponsorshipThe EPSRC (UK)en_US
dc.subjectMicrostructure controlen_US
dc.subjectTwin roll castingen_US
dc.subjectAZ31 magnesium alloyen_US
dc.titleMicrostructure control during twin roll casting of an AZ31 magnesium alloyen_US
dc.typeConference Paperen_US
dc.relation.isPartOfIOP Conference Series: Materials Science and Engineering-
Appears in Collections:Brunel Centre for Advanced Solidification Technology (BCAST)

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