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

8th International Scientific Colloquium on Modelling for Materials Processing

Bojarevis, Andris^1 ; Kaldre, Imants^1 ; Milgravis, Mikus^1 ; Beinerts, Toms^1

Institute of Physics, University of Latvia, Miera 32, Salaspils

LV-2169, Latvia^1

关键词: Direct chill casting;    Electromagnetic interactions;    Electromagnetic systems;    Microstructure and properties;    Permanent magnet assemblies;    Solidification interface;    Solidification nuclei;    Solidification velocity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/355/1/012011/pdf
DOI  :  10.1088/1757-899X/355/1/012011

来源: IOP

【 摘 要 】

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.