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TEMPERATURES OF SOLIDUS AND LIQUIDUS OF TOOL STEEL

1,2 SMETANA Bedřich
Co-authors:
1,2 ZLÁ Simona 1,2 KAWULOKOVÁ Monika 2,3 GRYC Karel 2,3 STROUHALOVÁ Michaela 1,2 KALUP Aleš 2,3 TKADLEČKOVÁ Markéta 1,2 DOBROVSKÁ Jana 2,3 MICHALEK Karel 4 JONŠTA Petr 4 SUŠOVSKÝ Michal 1 DOSTÁL Petr 1 MARTINÍK Ondřej 1 DROZDOVÁ Ľubomíra
Institutions:
1 VŠB - Technical University of Ostrava (VŠB-TUO), Faculty of Metallurgy and Materials Engineering (FMME), Department of Physical Chemistry and Theory of Technological Processes, 17. listopadu 15/2172, 708 33, Ostrava - Poruba, CZ, bedrich.smetana@vsb.cz
2 Regional Materials Science and Technology Centre (RMSTC), Laboratory for Modelling of Processes in the Liquid and Solid Phases, 17. listopadu 15/2172, 708 33, Ostrava - Poruba, CZ, bedrich.smetana@vsb.cz
3 VŠB - Technical University of Ostrava (VŠB-TUO), Faculty of Metallurgy and Materials Engineering (FMME), Department of Metallurgy and Foundry, 17. listopadu 15/2172, 708 33, Ostrava - Poruba, CZ
4 Vítkovice Heavy Machinery a.s., Ruská 2887/101, 70300, Ostrava – Vítkovice, CZ, jonsta@vitkovice.cz
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
91-96
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

The paper deals with the study of thermo-physical properties of real tool steel grade. The work is focused mainly on phase transition temperatures, particularly liquidus and solidus temperatures determination. These key phase transition temperatures were studied using two thermal analysis methods: “direct” thermal analysis (TA) and Differential Thermal Analysis (DTA). Temperatures of solidus and liquidus are discussed with values used for real casting process and with theoretically calculated temperatures using selected polynomial equations and by SWs, such as Thermo-Calc 2015b version with database TCFE8 and IDS (solidification analysis package). Differences between solidus and liquidus temperatures were encountered between theoretical and experimental values and values used for real casting process. Temperatures of solidus and liquidus were specified with use of thermal analysis methods. Discussion of obtained temperatures is performed with possible impact to the real casting process.

Keywords: solidus and liquidus temperature, thermal analysis, steel

© 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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