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2023 | OriginalPaper | Chapter

Effect of MgO, Ti2O3, and Al2O3 Inclusions on the Formation of Manganese-Depleted Zones Through First-Principles Calculation

Authors : Er-kang Liu, Qi Wang, Chen-yu Ma, Zhi-hong Guo, Ya-xu Zheng, Li-guang Zhu

Published in: TMS 2023 152nd Annual Meeting & Exhibition Supplemental Proceedings

Publisher: Springer Nature Switzerland

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Abstract

Using inclusions with a certain composite, which act as heterogeneous nucleation sites for intragranular acicular ferrite (IAF), has been acknowledged as an effective way for grain refinement. In this study, we investigated the strength of interaction between Mn solute atoms and different oxide inclusions (such as MgO, Ti2O3, and Al2O3) experimentally and using first-principles calculations, to identify the ability that oxides that can lead to the formation of local Mn-depleted zones (MDZ) promoting the nucleation of intragranular ferrite. The calculated results show that Ti2O3 are easy, MgO are moderately easy, and Al2O3 are invalid to form Mn-doped inclusions. Furthermore, the experimental results confirm that a wide MDZ appear at Ti2O3–steel interface, which effectively induces the nucleation of ferrite.

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Metadata
Title
Effect of MgO, Ti2O3, and Al2O3 Inclusions on the Formation of Manganese-Depleted Zones Through First-Principles Calculation
Authors
Er-kang Liu
Qi Wang
Chen-yu Ma
Zhi-hong Guo
Ya-xu Zheng
Li-guang Zhu
Copyright Year
2023
Book
TMS 2023 152nd Annual Meeting & Exhibition Supplemental Proceedings

Print ISBN: 978-3-031-22523-9

Electronic ISBN: 978-3-031-22524-6

Copyright Year: 2023

DOI
https://doi.org/10.1007/978-3-031-22524-6_98

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