Study on Molten Zone in Twin-Roll Casting of Magnesium Alloy Strip

Zhi Pu Pei; Hong Yang Zhao; Xiao Dong Hu; Dong Ying Ju

doi:10.4028/www.scientific.net/AMM.395-396.209

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 395-396Study on Molten Zone in Twin-Roll Casting of...

Study on Molten Zone in Twin-Roll Casting of Magnesium Alloy Strip

Abstract:

Thermal flow finite element simulation was carried out to deeply understand the solidification and deformation phenomena of magnesium alloy in molten zone during twin-roll casting process. The results show that temperature near the nip of the rolls is about 680K based on current conditions, and there are two vortexes in the molten pool during casting, a peak formed at solidus. Due to the metal flows in molten pool and relative rotates of the rolls, temperature field of molten zone is different from normal casting, which will cause the solidification structure changes. An experiment by using a vertical type twin-roll caster was also conducted, and the amount of deformation bands at the joint line is larger than that at the two sides. Substructures can be found due to dynamic recrystallization during casting process.

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Periodical:

Applied Mechanics and Materials (Volumes 395-396)

Pages:

209-213

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.395-396.209

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Online since:

September 2013

Authors:

Zhi Pu Pei, Hong Yang Zhao, Xiao Dong Hu, Dong Ying Ju

Keywords:

Casting Zone, Magnesium Alloy, Solidification Structure, Twin-Roll Casting

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