Abstract
A mathematical model is presented for describing the reaction of iron-chromium-carbon melts with pure oxygen, air and oxygen-argon mixtures. The model is based on the generalization of the Asai-Muchi model for oxygen steelmaking to systems containing chromium and where the oxygen blown is diluted by an inert gas. The predictions based on the model were compared to the experimental measurements of Barnhardt obtained with heats of about 1.2 to 1.5 kg, having carbon contents ranging from 0.3 to 0.6 wt pct and chromium contents of 0.0 to 21.0 wt pct. The agreement between measurements and predictions was quite good for a variety of blowing arrangements which included top blowing with pure oxygen or air and bottom blowing with air. The fact that this good agreement was obtained by using a single value of the adjustable parameter in the model for all runs, renders very promising the extension of the model to more complicated systems.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
J. M. Saccomano, R. J. Choulet, and J. D. Ellis:J. Metals, vol. 21, February 1969, p. 59.
F. Oeters and K. Heyer:Arch. Eisenhüttenw., 1959, vol. 5, p. 381.
Y. Niri, K. Ito, and K. Sano:Testu-to-Hagane, 1969, vol. 55, no. 6, p. 437.
L. F. Barnhardt: Ph.D. Thesis, 1965, MIT, Cambridge, Mass.
J. C. Fulton and S. Ramachandran: Proceedings of the Electric Steelmaking Conference, University Press, 1972.
T. Kuwano, S. Maruhashi, and Y. Aoyama:Testu-to-Hagane, 1973, vol. 59, no. 7, p. 863.
S. Asai and I. Muchi:Testu-to-Hagane, 1972, vol. 58, no. 6, p. 675.
S. Asai and I. Muchi: Mathematical Modelling Techniques Relevant to the Iron and Steel Industry, ISI, Delft, 22, February, 1973.
S. Asai and I. Muchi: Trans. I.S.I.J., (in press).
S. Tamamoto, T. Ikeda, and K. Marukawa:Tetsu-to-Hagane, 1968, vol. 54, no. 2, p. 381.
K. Mori and H. Nomura:Tetsu-to-Hagane, 1970, vol. 55, no. 11, S 460.
K. Nakamura, T. Ohno, and K. Segawa:Proceedings of International Conference on the Science and Technology of Iron and Steel, 1970, vol. 1, p. 456.
J. Chipman:J. Iron and Steel Inst., 1955, vol. 180, p. 97.
Author information
Authors and Affiliations
Additional information
On leave from Department of Iron and Steel Engineering, Nagoya University, Nagoya, Japan.
Rights and permissions
About this article
Cite this article
Asai, S., Szekely, J. Decarburization of stainless steel: Part I. A mathematical model for laboratory scale results. Metall Trans 5, 651–657 (1974). https://doi.org/10.1007/BF02644661
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02644661