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DETERMINATION OF SOLIDUS AND LIQUIDUS TEMPERATURES IN THE LOW CARBON STEEL USING THREE DEVICES FOR HIGH-TEMPERATURE THERMAL ANALYSIS AND SPECIALIZED PROGRAMS

1 GRYC Karel
Co-authors:
2 SMETANA Bedřich 1 STROUHALOVÁ Michaela 2 ŽALUDOVÁ Monika 1 MICHALEK Karel 2 ZLÁ Simona 3 VÁLEK Ladislav 2 KALUP Aleš 2 DOBROVSKÁ Jana
Institutions:
1 VSB - Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Department of Metallurgy and Foundry, and Regional Materials Science and Technology Centre, Ostrava, Czech Republic,EU, karel.gryc@vsb.cz, marketa.tkadleckova@vsb.cz, ladislav.socha@vsb.cz, karel.michalek@vsb.cz
2 VSB - Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Department of Physical Chemistry and Theory of Technological Processes, and Regional Materials Science and Technology Centre, Ostrava, Czech Republic, bedrich.smetana@vsb.cz, monika.zaludova@vsb.cz, jana.dobrovska@vsb.cz
3 ArcelorMittal Ostrava a.s., Research, Ostrava, Czech Republic, EU, ladislav.valek@arcelormittal.com
Conference:
23rd International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 21 - 23, 2014
Proceedings:
Proceedings 23rd International Conference on Metallurgy and Materials
Pages:
57-63
ISBN:
978-80-87294-52-9
ISSN:
2694-9296
Published:
18th June 2014
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
440 views / 670 downloads
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Abstract

The paper is devoted to a discussion of the results obtained by the simultaneous use of three methods of thermal analysis in three different specialized devices with the aim to precise solidus and liquidus temperatures. The low carbon as-cast steel (130 mm round format) from Continuous Casting Machine No. 3in ArcelorMittal Ostrava a.s. (CCM No. 3) was studied. The series of experiments with large samples (approx. 23 g) based on direct thermal analysis was carried out on Netzsch STA 449 F3 Jupiter device. The differential scanning calorimetry (DSC) method with special 3D sensor for other samples (approx. 1 g) was applied on Setaram MHTC 96 device. The third device (Setaram SETSYS 18TM) was used for solidus and liquidus temperatures determination by differential thermal analysis method on small steel samples (approx. 150 mg). Thermo analytically determined solidus and liquidus temperatures were then compared with values obtained by calculations (specialized Thermocalc, IDS and CompuTherm software) and with liquidus temperature currently defined in CCM No. 3 practice for continuous casting of discussed steel grade.

Keywords: steel, round billet, solidus temperature, liquidus temperature, thermal analysis, software

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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