Influence of the Flux Composition and State of the Gas Atmosphere over the Kinetics of Nitrogen Absorption by Steels and Alloys at the Arc Slag Remelting

Medovar, B. I.; Medovar, L.B.; Saenko, V. Ya.; Pomarin, Yu. M.; Chernets, A. V.

doi:10.4028/www.scientific.net/msf.318-320.53

Cited by 8 publications

(14 citation statements)

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“…It is also reported that O has greater influence than S. 21) In pure molten iron, nitrogen absorption at atmospheric pressure is not observed till these elements are below 0.02 to 0.04 wt%. 15,19) Increase in Cr and Mn content is reported to have no significant increase in absorption rate. 19) The nitrogen absorption in molten steels purged with N 2 gas in a pressurized atmosphere showed increased N pick-up.…”

Section: Kinetic Factors Governing Nitrogen Alloyingmentioning

confidence: 99%

“…9,14) Grigerenko 14) reported that in 18%Cr-18%Mn steel, nitrogen obeyed Sievert's law up to about 0.8 to 1.0% N, beyond which there was deviation attributed to contribution from e N N . The experimentally measured nitrogen solubilities in molten Fe-Cr-Mn alloys obtained by Langenberg,17) Anson et al, 19) and Grigerenko et al 14,15) are compared with values predicted by different calculation methods as shown in Table 4. The experimental data of nitrogen solubility in Table 3.…”

Section: Inconsistencies In Nitrogen Solubility Calculationsmentioning

confidence: 99%

“…15,26) It is for this reason that the process warrants use of nitrided ferro-alloys. The pressure is reported to retain the nitrogen content in the molten metal bath.…”

Section: Kinetic Factors Governing Nitrogen Alloyingmentioning

confidence: 99%

“…22) Nitrogen solubility is reported to be more in arc melting compared to induction melting due to N getting absorbed in the arc plasma. 15) Nitrogen alloying in commercial processes is carried out predominantly with the use of additions of nitrided ferro-alloys to the molten metal bath such as in Pressure ESR, 23) air induction melting, 24) and Electric arc furnace. 24,25) In the pressure ESR process, though there is a high pressure nitrogen gas atmosphere, there is no mass transfer from the gas phase to the molten metal phase.…”

Section: Kinetic Factors Governing Nitrogen Alloyingmentioning

confidence: 99%

“…Based on experimentation, Grigerenko et al 14,15) where, f N is the Henrian activity coefficient, e N j , r N j , q N j are the first, second and third order interaction parameters of element j on N respectively. The interaction parameter values in Table 2(a), were used with the above equation to calculate the nitrogen solubility.…”

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Some Theoretical Aspects on Designing Nickel Free High Nitrogen Austenitic Stainless Steels.

et al. 2001

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Section: Kinetic Factors Governing Nitrogen Alloyingmentioning

confidence: 99%

Section: Inconsistencies In Nitrogen Solubility Calculationsmentioning

confidence: 99%

“…15,26) It is for this reason that the process warrants use of nitrided ferro-alloys. The pressure is reported to retain the nitrogen content in the molten metal bath.…”

Section: Kinetic Factors Governing Nitrogen Alloyingmentioning

confidence: 99%

Section: Kinetic Factors Governing Nitrogen Alloyingmentioning

confidence: 99%

mentioning

confidence: 99%

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Some Theoretical Aspects on Designing Nickel Free High Nitrogen Austenitic Stainless Steels.

et al. 2001

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Comparison of Arc Slag Remelting vs. P‐ESR Melting for High Nitrogen Steels

Ritzenhoff¹,

Medovar

Petrenko

et al. 2013

Proceedings of the 2013 International Symposium on Liquid Metal Processing and Casting

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Numerical Simulation of the Electroslag Casting With Liquid Metal for Producing Composite Roll

Cao

Dong

Hou

et al. 2015

steel research int.

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The electroslag casting with liquid metal (ESC LM) is a new technology for producing composite roll of high quality based on electroslag metallurgy. In the present work, a twodimensional quasi-steady state mathematical model of just one half of the ESC LM facility is developed due to the axial symmetry. Influences of operating voltage and pouring temperature on the heat transfer of the composite roll system have been studied. The Lorentz forces and Joule heat are combined with the turbulent flow and energy equations via additional source terms in these equations by the user-defined functions (UDF) based on Fluent software. Simulation results indicate that the distributions of electric potential, current density, Lorentz forces, and Joule heat are concentrated on the upper area of slag bath and a much shallower molten steel pool is obtained. By using the current carrying mold, the heat transfer from slag bath and superheat of the molten steel pool are lower than the conventional ESR process, which is beneficial to a vertical crystallization and an excellent bonding interface between the roll core and working layer of the composite roll. The study of this paper gives us a better understanding of the ESC LM process.

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Influence of the Flux Composition and State of the Gas Atmosphere over the Kinetics of Nitrogen Absorption by Steels and Alloys at the Arc Slag Remelting

Cited by 8 publications

References 0 publications

Some Theoretical Aspects on Designing Nickel Free High Nitrogen Austenitic Stainless Steels.

Some Theoretical Aspects on Designing Nickel Free High Nitrogen Austenitic Stainless Steels.

Comparison of Arc Slag Remelting vs. P‐ESR Melting for High Nitrogen Steels

Numerical Simulation of the Electroslag Casting With Liquid Metal for Producing Composite Roll

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