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Modeling of Macro-scale Reaction Effects in a Secondary Lead Reverberatory Furnace Read chapter Read first chapter

2023 | OriginalPaper | Chapter

A Modified Thermodynamic Software to Control the Composition of Inclusions During Calcium Treatment Process

Authors : Weijian Wang, Lifeng Zhang

Published in: Materials Processing Fundamentals 2023

Publisher: Springer Nature Switzerland

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Abstract

Based on the minimum Gibbs free energy method, a modified thermodynamic model was established to predict the composition of inclusions during the calcium treatment process. Three types of phase were contained in the steel-inclusion system, including the molten steel phase, the liquid inclusions phase, and the solid inclusions phase. The Wanger model was applied to calculated activities of elements in the molten steel. Reported interaction parameters were evaluated and used to improve the accuracy of thermodynamic calculation results. The coexistence theory was applied to calculate activities of Al2O3 and CaO in liquid inclusions. According to the thermodynamic calculations, the effect of T.Ca content in the molten steel on the transformation of inclusions was discussed. Combining the established thermodynamic model and a calcium yield prediction model, a software for precise control of calcium treatment process was also developed.

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previous chapter Simulation on the Slag Desulfurization During the LF Refining in a Gas-Blowing Ladle
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Metadata
Title
A Modified Thermodynamic Software to Control the Composition of Inclusions During Calcium Treatment Process
Authors
Weijian Wang
Lifeng Zhang
Copyright Year
2023
Book
Materials Processing Fundamentals 2023

Print ISBN: 978-3-031-22656-4

Electronic ISBN: 978-3-031-22657-1

Copyright Year: 2023

DOI
https://doi.org/10.1007/978-3-031-22657-1_12

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