Resumen de Numerical modeling of the controlled solidification process

Stefan Nagy, Teodor Leuca, Claudiu Mich Vancea

• Purpose – This paper aims to present a numeric modeling of the electromagnetic and thermal phenomena for the non‐ferromagnetic alloys casting equipment that control the solidification structure's formation.

  Design/methodology/approach – The paper uses a numerical modeling program for the controlled solidification process modeling to allow visualization of the thermal field variation.

  Findings – The probes cast using this method will have a uniform structure, without micro‐fissures. If the solid's part growth of the molten is controlled, we can stop the process that creates solidification centers, thus the material structure will be homogenous. A solution for this matter is given by the control of the solidification structure using forced heating of the liquid part with eddy currents and forced cooling of the solid part. The evolution of the area with eddy currents and the cooled one controls the phase transformation.

  Originality/value – The paper presents a procedure to solve the coupled electromagnetic and thermal field problem in the casting systems techniques: solidification with controlled phase variation layer.