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Toward Modeling of Electrochemical Reactions during Electroslag Remelting (ESR) Process

2017; Wiley; Volume: 88; Issue: 5 Linguagem: Inglês

10.1002/srin.201700011

1869-344X

Ebrahim Karimi‐Sibaki, Abdellah Kharicha, Menghuai Wu, Andreas Ludwig, Jan Boháček,

Hydrogen embrittlement and corrosion behaviors in metals

steel research internationalVolume 88, Issue 5 1700011 Full Paper Toward Modeling of Electrochemical Reactions during Electroslag Remelting (ESR) Process Ebrahim Karimi-Sibaki, Ebrahim Karimi-Sibaki Christian-Doppler Lab for Advanced Process Simulation of Solidification and Melting, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, AustriaSearch for more papers by this authorAbdellah Kharicha, Abdellah Kharicha Christian-Doppler Lab for Advanced Process Simulation of Solidification and Melting, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, Austria Chair of Simulation and Modeling of Metallurgical Processes, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, AustriaSearch for more papers by this authorMenghuai Wu, Corresponding Author Menghuai Wu menghuai.wu@unileoben.ac.at Christian-Doppler Lab for Advanced Process Simulation of Solidification and Melting, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, Austria Chair of Simulation and Modeling of Metallurgical Processes, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, Austria Search for more papers by this authorAndreas Ludwig, Andreas Ludwig Chair of Simulation and Modeling of Metallurgical Processes, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, AustriaSearch for more papers by this authorJan Bohacek, Jan Bohacek Chair of Simulation and Modeling of Metallurgical Processes, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, AustriaSearch for more papers by this author Ebrahim Karimi-Sibaki, Ebrahim Karimi-Sibaki Christian-Doppler Lab for Advanced Process Simulation of Solidification and Melting, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, AustriaSearch for more papers by this authorAbdellah Kharicha, Abdellah Kharicha Christian-Doppler Lab for Advanced Process Simulation of Solidification and Melting, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, Austria Chair of Simulation and Modeling of Metallurgical Processes, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, AustriaSearch for more papers by this authorMenghuai Wu, Corresponding Author Menghuai Wu menghuai.wu@unileoben.ac.at Christian-Doppler Lab for Advanced Process Simulation of Solidification and Melting, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, Austria Chair of Simulation and Modeling of Metallurgical Processes, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, Austria Search for more papers by this authorAndreas Ludwig, Andreas Ludwig Chair of Simulation and Modeling of Metallurgical Processes, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, AustriaSearch for more papers by this authorJan Bohacek, Jan Bohacek Chair of Simulation and Modeling of Metallurgical Processes, Montanuniversitaet of Leoben, Franz-Josef-Str. 18, A-8700 Leoben, AustriaSearch for more papers by this author First published: 17 March 2017 https://doi.org/10.1002/srin.201700011Citations: 12Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Electrochemical reactions always occur at the electrode–slag and slag–metal melt interfaces during the electroslag remelting (ESR) process. However, those reactions together with the ion transport phenomenon in the molten slag region are still poorly understood. A numerical model considering both the ion transport and the electrochemical reactions is demanding. For this purpose, a numerical model is proposed. The ion transport is modeled by solving the Poisson–Nernst–Planck (PNP) equations, while the kinetics of the reaction at the slag–metal interface is modeled with the well-known “Butler–Volmer” formula. Demonstratively, a one- dimensional case is calculated: a DC electric current is applied to a molten multi-ion slag (CaF2–FeO) between the anode and the cathode. The modeling results show that the redox reaction occurs only for the ferrous ion (Fe2+), not for other ions at low current density ( 5 kA m−2) may not take place, although some researchers have proposed such a hypothesis. Therefore, further research steps are suggested to verify this point so that the model is fully applicable for the industrial ESR process. Citing Literature Volume88, Issue5May 20171700011 RelatedInformation