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Published in:
2016 | OriginalPaper | Chapter
Comparison of ARC Slag Remelting vs. P-ESR Melting for High Nitrogen Steels
Authors : Dr. Roman Ritzenhoff, Prof. Lev Medovar, Volodymyr Petrenko, Ganna Stovpchenko
Published in: Proceedings of the 2013 International Symposium on Liquid Metal Processing & Casting
Publisher: Springer International Publishing
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High Nitrogen Steels with nitrogen contents above atmospheric solubility are usually melted using an advanced P-ESR process under elevated pressure. The nitrogen pick up can be controlled by Si3N4 or nitrogen gas. This paper provide a comparison of alloying by nitrogen gas by ASR vs P-ESR process in terms of processing and nitrogen distribution. In two series of ASR and P-ESR separate trials the nitrogen content was increased at remelting in nitrogen atmosphere practically twice in spite of big difference in nitrogen pressure. Comparison of P-ESR and ASR processes abilities in steel alloying by nitrogen from gas phase shown quite close results that gives us reasons for experiments continuation.