6533b85ffe1ef96bd12c23a4

RESEARCH PRODUCT

Direct chill casting of aluminium alloys under electromagnetic interaction by permanent magnet assembly

Mikus MilgrāvisToms BeinertsImants KaldreAndris Bojarevics

subject

Condensed Matter::Materials ScienceDirect chill castingTemperature gradientDendrite (crystal)Electromagnetic interactionMaterials sciencechemistryMaterial structureAluminiumMagnetchemistry.chemical_elementComposite materialMicrostructure

description

Direct chill casting is one of the methods used in industry to obtain good microstructure and properties of aluminium alloys. Nevertheless, for some alloys grain structure is not optimal. In this study, we offer the use of electromagnetic interaction to modify melt convection near the solidification interface. Solidification under various electromagnetic interactions has been widely studied, but usually at low solidification velocity and high thermal gradient. This type of interaction may succeed fragmentation of dendrite arms and transport of solidification nuclei thus leading to improved material structure and properties. Realization of experimental small-scale crystallizer and electromagnetic system has been described in this article.

https://doi.org/10.1088/1757-899x/355/1/012011