Review on desulfurization in electroslag remelting

Cheng-bin Shi; Yi Huang; Jian-xiao Zhang; Jing Li; Xin Zheng

doi:10.1007/s12613-020-2075-3

Volume 28 Issue 1

Jan. 2021

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2021 > 28(1): 18-29

Cheng-bin Shi, Yi Huang, Jian-xiao Zhang, Jing Li, and Xin Zheng, Review on desulfurization in electroslag remelting, Int. J. Miner. Metall. Mater., 28(2021), No. 1, pp. 18-29. https://doi.org/10.1007/s12613-020-2075-3

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Cheng-bin Shi, Yi Huang, Jian-xiao Zhang, Jing Li, and Xin Zheng, Review on desulfurization in electroslag remelting, Int. J. Miner. Metall. Mater., 28(2021), No. 1, pp. 18-29. https://doi.org/10.1007/s12613-020-2075-3

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Invited Review

Review on desulfurization in electroslag remelting

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Corresponding author:
Cheng-bin Shi E-mail: chengbin.shi@ustb.edu.cn
Received: 28 February 2020; Revised: 20 April 2020; Accepted: 21 April 2020; Available online: 24 April 2020

Abstract

Abstract

Electroslag remelting (ESR) gives a combination of liquid metal refining and solidification structure control. One of the typical aspects of liquid metal refining during ESR for the advanced steel and alloy production is desulfurization. It involves two patterns, i.e., slag–metal reaction and gas–slag reaction (gasifying desulfurization). In this paper, the advances in desulfurization practices of ESR are reviewed. The effects of processing parameters, including the initial sulfur level of consumable electrode, remelting atmosphere, deoxidation schemes of ESR, slag composition, melting rate, and electrical parameters on the desulfurization in ESR are assessed. The interrelation between desulfurization and sulfide inclusion evolution during ESR is discussed, and advancements in the production of sulfur-bearing steel at a high-sulfur level during ESR are described. The remaining challenges for future work are also proposed.
- electroslag remelting;
- desulfurization;
- sulfide inclusions;
- sulfur-bearing steel;
- gasifying desulfurization;
- desulfurization mechanism

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