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USE OF THE THERMODYNAMIC DATABASE COMPUTHERM TO CONSTRUCT A REGRESSION EQUATION TO DETERMINE THE LIQUIDUS TEMPERATURE OF 41CR4 STEEL

1 CHUDOBOVÁ Lucie
Co-authors:
1 WALEK Josef 1 SNIEGOŇ Michal 1 CUPEK Jiří 1 MICHALEK Karel 2 SATERNUS Mariola
Institutions:
1 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, lucie.chudobova@vsb.cz, josef.walek@vsb.cz, michal.sniegon@vsb.cz, jiri.cupek@vsb.cz, karel.michalek@vsb.cz
2 Politechnika Śląska, Katowice, Poland, EU, Mariola.Saternus@polsl.pl
Conference:
31st International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 18 - 19, 2022
Proceedings:
Proceedings 31st International Conference on Metallurgy and Materials
Pages:
72-77
ISBN:
978-80-88365-06-8
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2022.4449
Published:
1st November 2022
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
549 views / 294 downloads
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Abstract

The subject of this paper is the analysis of phase transformation temperatures, specifically liquidus temperature (TL) for steel quality 41Cr4. To calculate the temperatures, 66 different variants of the chemical composition of a given steel grade were compiled. The calculations were performed in the CompuTherm thermodynamic database using the Lever microsegregation model. The resulting temperatures are further supplemented by multiple regression analysis, which considers the dependence on the chemical temperature. The results of the regression analysis are used to design a regression equation to calculate the liquidus temperature. It is clear from the obtained results that the chemical composition of the steel has a significant temperature effect on the change in the calculated values.

Keywords: Steel, phase, transformation, temperature, liquidus

© 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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