Abstract
Carbon dissolution into liquid iron was investigated by a kinetic model assuming the rate is limited by interfacial carbon dissociation and mass transfer in the liquid iron. The rate influencing factors and the inter-relations among them were discussed with the aid of the kinetic model.
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Abbreviations
- A:
-
solid-liquid contact area (cm2)
- a solid, a c, and a*c :
-
activities of carbon in solid, in liquid, and at interface, respectively
- C(solid) :
-
solid carbon
- [C], [C],* [C],sat and [C]0 :
-
carbon contents in liquid, at interface, of saturation, and in initial liquid, respectively (mass pct)
- f C, f*C, and f satC :
-
carbon activity coefficients in liquid, at the interface, and in the liquid saturated with carbon
- K r :
-
equilibrium constant for Reaction [1]
- k r :
-
rate constant of Reaction [1] for rate Eq. [11] (g/s cm2)
- k′ r :
-
rate constant of Reaction [1] for rate Eq. [12] (g/s cm2)
- k m :
-
mass-transfer coefficient in liquid (cm/s)
- k t :
-
overall rate constant of carbon dissolution (g/s cm2)
- r r, r m, and r d :
-
rates of the dissociation reaction, mass transfer, and dissolution of carbon (g/s)
- V m :
-
volume of liquid iron (cm3)
- ρ m :
-
density of liquid (g/cm3)
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Sun, H. Factors influencing dissolution of carbonaceous materials in liquid iron. Metall Mater Trans B 36, 893–894 (2005). https://doi.org/10.1007/s11663-005-0091-3
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DOI: https://doi.org/10.1007/s11663-005-0091-3