@inproceedings{247bfe8eb0fb494e849cde2ccfa821f2,
title = "Thermodynamic re-assessment of Fe-Si and Fe-Si-C systems",
abstract = "An investigation of the Fe-Si binary system and Fe-Si-C ternary system was carried out by experimental phase transformation temperature measurements and by the development of a thermodynamic database assessed according the CALPHAD (CALculation of PHAse Diagrams) method. Differential Thermal Analysis measurements were performed in order to obtain an accurate experimental description of Fe-Si and Fe-Si-C systems above 1200°C. Experimental trials were focused particularly on primary phase of - ferrite in order to get measurements as precise as possible of the liquidus, solidus and peritectic temperatures. All available experimental data were taken into consideration and a set of data was selected. By merging the selected literature results and the present experimental measurements, a new experimental description of the Fe-Si-C system was determined. By using the updated experimental description, a thermodynamic reassessment was performed to obtain a new set of interaction parameters for Gibbs energies of each phase. Compared with previously known thermodynamic descriptions, a better agreement was obtained in the present study for the description of solidus in the Fe-Si system and for the location of the monovariant lines in the Fe-Si-C system. Calculations using the presently developed thermodynamic description were discussed and compared with experimental data and previous assessments.",
keywords = "Calphad, Differential Thermal Analysis, Fe-C-Si Ternary, Fe-Si Binary, Peritectic Steel, Si-C Binary, Solidification, Thermodynamic Modeling",
author = "Evangeline Ahtoy and Fayssal Oudich and Jean Lehmann and Manuel Bobadilla and Nicolas David",
note = "Publisher Copyright: {\textcopyright} ICS 2018 - 7th International Congress on Science and Technology of Steelmaking: The Challenge of Industry 4.0. All rights reserved.; 7th International Congress on Science and Technology of Steelmaking, ICS 2018 ; Conference date: 13-06-2018 Through 15-06-2018",
year = "2018",
month = jan,
day = "1",
language = "English",
series = "ICS 2018 - 7th International Congress on Science and Technology of Steelmaking: The Challenge of Industry 4.0",
publisher = "Associazione Italiana di Metallurgia",
booktitle = "ICS 2018 - 7th International Congress on Science and Technology of Steelmaking",
}