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SOLIDUS, LIQUIDUS AND PERITECTIC TRANSFORMATION TEMPERATURES OF FECCRNI-MO BASED ALLOYS

1,2 SMETANA Bedřich
Co-authors:
1,2 ZLÁ Simona 1,2 KAWULOKOVÁ Monika 1 DROZDOVÁ Ľubomíra 1,2 DOBROVSKÁ Jana 1,2 KALUP Aleš 1,2 ŘEHÁČKOVÁ Lenka 1,2 ROSYPALOVÁ Silvie 2,3 STROUHALOVÁ Michaela 2,3 MICHALEK Karel 4 JONŠTA Petr 4 SUŠOVSKÝ Michal
Institutions:
1 Department of Physical Chemistry and Theory of Technological Processes, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, Ostrava-Poruba, 708 33, bedrich.smetana@vsb.cz
2 Regional materials science and technology centre, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, Ostrava-Poruba, 708 33
3 Department of Metallurgy and Foundry, VŠB-Technical University of Ostrava, 17. listopadu 15/2172, OstravaPoruba, 708 33
4 Vítkovice Heavy Machinery a.s., Ruská 2887/101, 70300, Ostrava – Vítkovice, CZ, jonsta@vitkovice.cz
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
59-64
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
730 views / 445 downloads
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Abstract

The paper deals with the study of key thermophysical properties - phase transition temperatures (liquidus, peritectic transformation and solidus) with use of DTA (Differential Thermal Analysis) and “direct” thermal analysis (TA). Results obtained with these two very often used methods at heating and cooling process are presented. There are presented results from the high temperature region with focus on the melting and solidifying region of Fe-C-Cr-Ni-Mo based metallic alloys. The paper discusses obtained results at heating/cooling process, with different loads of analyzed samples and other factors that can influence the obtained results. The evaluation of DTA – curves and heating/cooling curves is demonstrated. The obtained experimental phase transition temperatures are mutually compared and discussed. Temperatures of liquidus, peritectic transformation and solidus are discussed with values theoretically calculated by selected SWs, such as Thermo-Calc and IDS (solidification analysis package) and with values delivered by steel company producer. Differences between liquidus, peritectic transformation and solidus temperatures were encountered (in some cases substantial) between theoretical and experimental values.

Keywords: temperatures, liquidus, peritectic transformation, solidus, FeCCrNi-Mo alloys

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