University of Oulu

Shu, Q., Visuri, VV., Alatarvas, T. et al. Model for Inclusion Precipitation Kinetics During Solidification of Steel Applications in MnS and TiN Inclusions. Metall Mater Trans B 51, 2905–2916 (2020).

Model for inclusion precipitation kinetics during solidification of steel applications in MnS and TiN inclusions

Saved in:
Author: Shu, Qifeng1; Visuri, Ville-Valtteri1; Alatarvas, Tuomas1;
Organizations: 1Process Metallurgy Research Unit, University of Oulu, 90014, Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.9 MB)
Persistent link:
Language: English
Published: Springer Nature, 2020
Publish Date: 2021-01-19


A simulation model for inclusion precipitation kinetics during solidification of steel was proposed in this work. With the aim to calculate the inclusion size distribution during solidification of steel, the microsegregation calculation combined with the Kampmann–Wagner numerical (KWN) model for nucleation and growth of inclusion was incorporated into the present simulation model for calculating the evolution of inclusion size distribution during solidification of steel. The inclusion agglomeration due to Brownian collisions was also taken into account. The present simulation model was first applied in simulating precipitation of MnS during steel solidification and validated by the experimental data available in the literature. The effects of cooling rates and sulfur concentrations on the precipitation of MnS were investigated by the model calculations. Then, the present simulation model was applied in simulating the precipitation of TiN inclusions during steel solidification. The calculated mean size was found to be in good agreement with data available in the literature. Finally, the model was employed for studying the effects of interfacial tension between TiN and steel due to sulfur concentration change and cooling rates on the inclusion precipitation kinetics. It was found that interfacial tension between TiN and steel has a crucial influence on the precipitation of TiN. With an increase of the cooling rate, the size distribution of TiN transforms from the lognormal distribution to the bimodal distribution.

see all

Series: Metallurgical and materials transactions. B, Process metallurgy and materials processing science
ISSN: 1073-5615
ISSN-E: 1543-1916
ISSN-L: 1073-5615
Volume: 51
Issue: 6
Pages: 2905 - 2916
DOI: 10.1007/s11663-020-01955-0
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
Funding: The financial support from the Academy of Finland for Genome of Steel (Grant No. 311934) is gratefully acknowledged. Open access funding provided by University of Oulu including Oulu University Hospital.
Copyright information: © The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit