The simple microsegregation model for steel considering MnS formation in the liquid and solid phases

A simple microsegregation model for steel considering MnS formation in the liquid and solid phases is proposed. The concentration of the solutes during the solidification is calculated using the discretized Scheil-Gulliver model for steel (SGS). In the calculation, the planar dendrite is divided int...

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Main Authors: Dali You, Christian Bernhard, Michael Bernhard, Susanne Katharina Michelic
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785424000292
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author Dali You
Christian Bernhard
Michael Bernhard
Susanne Katharina Michelic
author_facet Dali You
Christian Bernhard
Michael Bernhard
Susanne Katharina Michelic
author_sort Dali You
collection DOAJ
description A simple microsegregation model for steel considering MnS formation in the liquid and solid phases is proposed. The concentration of the solutes during the solidification is calculated using the discretized Scheil-Gulliver model for steel (SGS). In the calculation, the planar dendrite is divided into a finite number (n) of elements to record the local solid concentrations and calculate the mass fraction of MnS precipitation during further cooling. The solidification part of the model is validated by measured solidification temperatures and the MnS formation amount predicted by the FactSage thermochemical software. The model was applied to evaluate the high-temperature ductility of the selected steel. The optimum Mn content of the assumed steel was obtained based on the simulation.
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spelling doaj.art-fc4e204f6d7e46c281977aa2bffc2c2d2024-01-31T05:44:34ZengElsevierJournal of Materials Research and Technology2238-78542024-01-012841104115The simple microsegregation model for steel considering MnS formation in the liquid and solid phasesDali You0Christian Bernhard1Michael Bernhard2Susanne Katharina Michelic3Primetals Technologies Austria, Turmstraße 44, 4020, Linz, AustriaMontanuniversität Leoben, Franz Josef Straße 18, A-8700, Leoben, Austria; Corresponding author.Montanuniversität Leoben, Franz Josef Straße 18, A-8700, Leoben, AustriaMontanuniversität Leoben, Franz Josef Straße 18, A-8700, Leoben, AustriaA simple microsegregation model for steel considering MnS formation in the liquid and solid phases is proposed. The concentration of the solutes during the solidification is calculated using the discretized Scheil-Gulliver model for steel (SGS). In the calculation, the planar dendrite is divided into a finite number (n) of elements to record the local solid concentrations and calculate the mass fraction of MnS precipitation during further cooling. The solidification part of the model is validated by measured solidification temperatures and the MnS formation amount predicted by the FactSage thermochemical software. The model was applied to evaluate the high-temperature ductility of the selected steel. The optimum Mn content of the assumed steel was obtained based on the simulation.http://www.sciencedirect.com/science/article/pii/S2238785424000292Microsegregation modelMnS formationSolidLiquidSteel
spellingShingle Dali You
Christian Bernhard
Michael Bernhard
Susanne Katharina Michelic
The simple microsegregation model for steel considering MnS formation in the liquid and solid phases
Journal of Materials Research and Technology
Microsegregation model
MnS formation
Solid
Liquid
Steel
title The simple microsegregation model for steel considering MnS formation in the liquid and solid phases
title_full The simple microsegregation model for steel considering MnS formation in the liquid and solid phases
title_fullStr The simple microsegregation model for steel considering MnS formation in the liquid and solid phases
title_full_unstemmed The simple microsegregation model for steel considering MnS formation in the liquid and solid phases
title_short The simple microsegregation model for steel considering MnS formation in the liquid and solid phases
title_sort simple microsegregation model for steel considering mns formation in the liquid and solid phases
topic Microsegregation model
MnS formation
Solid
Liquid
Steel
url http://www.sciencedirect.com/science/article/pii/S2238785424000292
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