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

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  • Primetals Technologies Austria GmbH

Abstract

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.

Details

Original languageEnglish
Pages (from-to)4110-4115
Number of pages6
JournalJournal of Materials Research and Technology
Volume28.2024
Issue numberJanuary-February
DOIs
Publication statusE-pub ahead of print - 5 Jan 2024