Original scientific paper

Determination of solidus and liquidus temperatures for S34MnV steel grade by thermal analysis and calculations

K. Gryc ; VŠB-TU Ostrava, Faculty of Metalurgy and Materials Engineering, Ostrava, Czech Republic
B. Smetana ; VŠB-TU Ostrava, Faculty of Metalurgy and Materials Engineering, Ostrava, Czech Republic
M. Tkadlečková ; VŠB-TU Ostrava, Faculty of Metalurgy and Materials Engineering, Ostrava, Czech Republic
M. Žaludová ; VŠB-TU Ostrava, Faculty of Metalurgy and Materials Engineering, Ostrava, Czech Republic
K. Michalek ; VŠB-TU Ostrava, Faculty of Metalurgy and Materials Engineering, Ostrava, Czech Republic
L. Socha ; VŠB-TU Ostrava, Faculty of Metalurgy and Materials Engineering, Ostrava, Czech Republic
J. Dobrovská ; VŠB-TU Ostrava, Faculty of Metalurgy and Materials Engineering, Ostrava, Czech Republic
K. Janiszewski ; Silesian University of Technology, Department of Metallurgy, Katowice, Poland
P. Machovčák ; Vítkovice Heavy Machinery, a.s., Ostrava, Czech Republic

Abstract

The paper is devoted to the comparison of the results in the frame of solidus and liquidus temperatures obtained by thermo analytical methods with the generally used empirically based formulas and thermo dynamical Computherm software. The series of thermal analysis measurements of high temperature phase transformations of real steel grade (S34MnV) under conditions of two analytical devices (Netzsch STA 449 F3 Jupiter; Setaram Multi High Temperature Calorimeter (MHTC)) were carried out. Two thermo analytical methods were used (DSC and Direct Thermal Analysis). The different weight of samples was used (2,6 g; 23 g). The liquidus and solidus temperatures for close to equilibrium conditions during heating (DSC: 1 °C/min; 2 °C/min) and during cooling (Direct Thermal Analysis: 1 °C/min) were determined and compared. Then, the discussion on the different values obtained by experiments and empirically based calculation is realised.

Keywords

steel; thermal analysis; empirical formula; liquidus temperature; solidus temperature

Hrčak ID:

119534

URI

https://hrcak.srce.hr/119534

Publication date:

1.7.2014.

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