In order to determine the optimum geometry of the ingot mold format (the format of ingot mold with a diameter per height ratio H / D <3 and the conicity of minimum 7%) was analyzed by mathematical modeling of solidification and segregation of the carbon and sulfur in it.
It was considered 205Cr115 steel type (according with , STAS 3611 - Romanian stardandization) and known also as X210Cr12 steel type (according with European standard). It has been considered an element of volume of coordinates x, y, z in the solidifying ingot and have made the following assumptions: (i) the equilibrium distribution ratio K, is applied to the solid-liquid interface; (ii) solid diffusion is negligible during solidification; and (iii) the solid density is constant during solidification. In carrying out the simulation of segregation mechanisms are resolved heat transfer equation, that simulating the solidification process and are are solved the interdendritic fluid equation of motion.
 B.Yordanov, Heat Treatment of Tool Steel X210CR12 After Modification With Nanodispersed Si3N4 , Journal of the University of Chemical Technology and Metallurgy, 46, 4 ( 2011), 423-426.
 FV Anghelina, V Bratu, IN Popescu, Estimating the stacking faults of high alloyed steels, The Scientific Bulletin of Valahia University 8(11) (2013), 7-11.
 I.N. Popescu, D Bojin, I. Carceanu, G. Novac, F.V. Anghelina, Morphological And Structural Aspects Using Electronic Microscopy And Image Analysis Of Iron Powders Obtained By Water Atomization Process, Journal of Science and Arts, 1(12)( 2010) 125-134.
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 Ya Meng and Brian G. Thomas, Heat Transfer and Solidification Model of Continuous Slab Casting : Con1D, Metallurgical and Materials Transactions B, 34B (5) (2003), 685-705.
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 Adrian Bejan, Convection Heat Transfer, John Wiley & Sons, 2013.
 F.V. Anghelina, V. Bratu, I. N. Popescu, Transfer de masă si căldură. Indrumar de laborator/ Heat & Mass Transfer Laboratory Manual , Valahia University Press ISBN 978-606-603-129 -5, 2014
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