About Electromagnetic and Thermal Phenomena in the Controlled Phase Transformation Melting Process

• Main Authors: Ştefan Nagy, Adrian Nagy, Dorelu Dragoş Betea
• Format: Article
• Language: English
• Published: Editura Universităţii din Oradea 2009-10-01
• Series: Journal of Electrical and Electronics Engineering
• Subjects: eddy currents; electromagnetic field; thermal field; controlled phase transformation
• Online Access: http://electroinf.uoradea.ro/reviste%20CSCS/documente/JEEE_2009/Articole_pdf_JEEE_EE_nr_2/JEEE_2009_Nr_2_EE_Nagy_About.pdf

This paper presents the electromagnetic andthermal phenomena during the melting process, withphase transformation control, of ferromagnetic alloys.The probes cast using this method will have a uniformstructure, without micro-fissures. If the solid’s partgrowth of the molten is controlled, we can stop theprocess that creates solidification centers, thus thematerial structure will be homogenous. A solution forthis matter is given by the control of the solidificationlayer (phase transformation) using forced heating ofthe liquid part with eddy currents and forced cooling ofthe solid part. The evolution of the area with eddycurrents and the cooled one, controls the phasetransformation