Inclusions properties at 1673 K and room temperature with Ce addition in SS400 steel

Fei Pan; Hao-Long Chen; Yen-Hsun Su; Yen-Hao Su; Weng-Sing Hwang

doi:10.1038/s41598-017-02478-6

Scientific Reports (May 2017)

Inclusions properties at 1673 K and room temperature with Ce addition in SS400 steel

Fei Pan,
Hao-Long Chen,
Yen-Hsun Su,
Yen-Hao Su,
Weng-Sing Hwang

Affiliations

Fei Pan: Department of Materials Science and Engineering, National Cheng Kung University
Hao-Long Chen: Department of Electronic Engineering, Kao Yuan University
Yen-Hsun Su: Department of Materials Science and Engineering, National Cheng Kung University
Yen-Hao Su: Steelmaking Process Development Section, China Steel Corporation
Weng-Sing Hwang: Department of Materials Science and Engineering, National Cheng Kung University

DOI: https://doi.org/10.1038/s41598-017-02478-6
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 8

Abstract

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Abstract Inclusion species formed in SS400 steel with Ce-addition was predicted by thermodynamic calculation. The analysis of the inclusion morphology and size distribution was carried out by applying Scanning Electron Microscopy (SEM) and Transmission Electron Microscope (TEM). Nano-Fe3O4 particles were also found in cerium-deoxidized and -desulfurized steel and their shapes were nearly spherical. The complex Ce2O3 inclusions covering a layer of 218 nm composed by several MnS particles with similar diffraction pattern. Most importantly, the complex Ce2O3 characterized by using TEM diffraction is amorphous in the steel, indicating that Ce2O3 formed in the liquid iron and then MnS segregated cling to it.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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