TY - JOUR

T1 - The simple microsegregation model for steel considering MnS formation in the liquid and solid phases

AU - You, Dali

AU - Bernhard, Christian

AU - Bernhard, Michael Christian

AU - Michelic, Susanne Katharina

PY - 2024/1/5

Y1 - 2024/1/5

N2 - 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 valuate the hightemperature ductility of the selected steel. The optimum Mn content of the assumed steel was obtained based on the simulation.

AB - 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 valuate the hightemperature ductility of the selected steel. The optimum Mn content of the assumed steel was obtained based on the simulation.

M3 - Article

VL - 28

SP - 4110

EP - 4115

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

SN - 2238-7854

ER -