Abstract
During the refining of Si deoxidized spring steel by low-basicity slag, with the addition of BaCO3 to refining slag, many BaO-containing CaO-SiO2-Al2O3 inclusions existed in steel, which were with approximate chemical compositions to other CaO-SiO2-Al2O3 inclusions. Thermodynamic calculation revealed that (BaO) in slag can be hardly reduced by [Si] in steel, which meant that CaO-SiO2-Al2O3-BaO inclusions in Si-deoxidized spring steel cannot be produced by chemical reactions among slag-steel-inclusion, viz., they were originated from entrapped slag.
References
J.D. Seo, Y.T. Kim and D.H. Kim: 5th Int. Congress Sci. & Technol. Steelmaking, ICS 2012, Dresden, Germany, 2012, pp. 1250-54.
K. Karihara: Kobelco Technol. Rev., 2011, vol. 30, pp. 62-65.
S. Kimura, I. Hoshikawan, N. Ibaraki, S. Hattori and T. Choda: Tetsu-to-Hagané, 2002, vol. 88, pp. 755-762
S. Maede, T. Soejima and T. Saito. Steelmaking Conf. Proceed., Iron and Steel Society of USA, Warrendale, 1989, pp. 379-85.
G.M. Fauling. Iron & steelmaker, 1999, vol. 26, pp. 29-36.
H.L. Yang, J.S. Ye, X.L. Wu, Y.S. Peng, Y. Fang and X.B. Zhao: ISIJ Int., 2016, vol. 56, pp. 108-115.
K.P. Wang, M. Jiang, X.H. Wang, Y. Wang, H.Q. Zhao and Z.M. Cao: Metall. Mater. Trans. B, 2016, vol. 47B, pp. 282-290.
K.P. Wang, M. Jiang, X.H. Wang, Y. Wang, H.Q. Zhao and Z.M. Cao: Metall. Mater. Trans. B, 2017, vol. 48B, pp. 2961-2969.
Y. Li, C.Y. Chen, Z.H. Jiang, M. Sun, H. Hu and H.B. Li: ISIJ Int., 2018, vol. 58, pp. 1232-1241.
Y. Li, M. Sun, Z.H. Jiang, C.Y. Chen, X.F. Huang, S. Sun and H.B. Li: Metals, 2019, vol. 9, pp. 1-13
L.J. Chen, W.Q. Chen, Y. Hu, Z.P. Chen, Y.T. Xu and W. Yan: High Temp. Mater. Proc., 2018, vol. 73, pp. 701-709.
L.J. Chen, Y. Wan, J. Li, W.Q. Chen, Y.D. Yang and A. Mclean: Metals, 2020, vol. 10, pp. 1-13.
Thermodynamic Data for Steelmaking. M. Hino and K. Ito. Tohoku University Press, Sendai, Japan, 2010.
The authors are grateful to support of Fundamental Research Funds for Central Universities (No. FRF-DF-20-08). And on behalf of all authors, the corresponding author states that there is no conflict of interest.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Manuscript submitted February 15, 2020; accepted May 18, 2021.
Rights and permissions
About this article
Cite this article
Jiang, M., Liu, JC., Li, KL. et al. Formation Mechanism of Large CaO-SiO2-Al2O3 Inclusions in Si-Deoxidized Spring Steel Refined by Low Basicity Slag. Metall Mater Trans B 52, 1950–1954 (2021). https://doi.org/10.1007/s11663-021-02230-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11663-021-02230-6