Microstructure assessment is crucial for the design and production of
high-quality alloys such as cast aluminum alloy ingots. Along with the
effect of a more homogeneous microstructure to result in much better
mechanical properties, better as-cast alloy quality indicates a higher
efficiency of the aluminum alloys production process. During the aluminum
alloy solidification process many microstructural defects can occur, which
deteriorate the mechanical properties and hence decrease the usability of
such an ingot. Application of the electromagnetic field during the vertical
continuous casting process significantly reduces occurrence of these
defects. In the present study, EN AW 7075 alloy samples were cast with and
without application of an electromagnetic field and examined regarding the
microstructure, electrical conductivity, and changes in the phase
composition. The obtained results clearly show that it is possible to
decrease or avoid casting defects by the electromagnetic field application
as verified by the microstructure characterization and quantification,
electrical conductivity tests and differential thermal analysis (DTA).
Applications of Electromagnetic Field to Continuous Casting Process of Steel
