DILATOMETRY ANALYSIS OF FECCRNI BASED SYSTEMS

1 DROZDOVÁ Ľubomíra
Co-authors:
1 SMETANA Bedřich 1 MACHŮ Mario 1 SOROKINA Svetlana 1 ZLÁ Simona 1 KAWULOKOVÁ Monika 1 NOVÁK Vlastimil 1 ŘEHÁČKOVÁ Lenka
Institution:
1 Faculty of materials science and technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic, EU, lubomira.drozdova@vsb.cz
Conference:
29th International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 20 - 22, 2020
Proceedings:
Proceedings 29th International Conference on Metallurgy and Materials
Pages:
68-73
ISBN:
978-80-87294-97-0
ISSN:
2694-9296
Published:
27th July 2020
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
108 views / 43 downloads
Abstract

Three model alloys based on FeCCrNi were studied. Alloys contained 0.34  0.36 wt. % of carbon and chromium and nickel in the range of 1.04 – 4.96 wt. %. Thermal expansion coefficient and density were studied in the temperature range of 200 – 1600 °C. Temperatures of phase transformations in the low and hightemperature area were evaluated too. The experimental data were obtained using dilatometry. The NETZSCH DIL 402 Expedis Supreme with NanoEye, the optoelectrical displacement system, was used for experiments. Measurements were done in an inert atmosphere of pure helium by a heating rate of 10 °C/min. The experimental data were compared and discussed with the calculation results using SW ThermoCalc with implemented Fe-based alloys database TCFE8.1 and SW JMatPro with implemented General steel database. The influence of various contents of chromium and nickel was studied.

Keywords: Fe-C-Cr-Ni alloys, dilatometry, thermal expansion coefficient, density, temperatures of phase transformation, Thermo-Calc, JMatPro

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