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Behavior of Hydrogen during Electroslag Remelting Process

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Abstract:

Behavior of hydrogen in steel during electroslag remelting process was investigated on a laboratory-scale unit. Results indicated that a considerable amount of hydrogen was picked up by the metal at the beginning of the process. Hydrogen content decreased with the increasing of ingot height. To avoid the hydrogen peak, anhydrous components must be used. Protective atmosphere combining with premelted slag was the optimal measure to control hydrogen in steel when the solid-starting technique was carried out. According to the results in the experiment it was not the crucial factor for hydrogen in steel remelted under protective atmosphere whether slag contained lime or not at actual remelting period.

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Periodical:

Materials Science Forum (Volumes 675-677)

Pages:

843-846

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.675-677.843

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Online since:

February 2011

Authors:

Yan Wu Dong, Zhou Hua Jiang, Lian Ke Liang, Zheng Bang Li

Keywords:

Electroslag Remelting, Low Hydrogen Material, Premelted Slag, Protective Atmosphere

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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