黒鉛円柱から炭素を含む溶鉄中への物質移動

概要

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The rates of dissolution of carbon from the rotating or stationary graphite rods into liquid Fe-C alloy were studied in the temperature range 1270∿1550℃. It was concluded that the dissolution process was controlled by mass-transfer in the liquid. Applying non-dimensional correlation of mass-transfer under the forced convection to the experimental results on the rotating rods, the effective interdiffusivity De (cm^2/sec) in liquid Fe-C alloy were estimated. In other hand, mass-transfer coefficient k (cm/sec) on the stationary rods were estimated by using non-dimmensional correlation under the free convection and compared with the experimental results. Employing effective interdiffusivity De, experimental results on the stationary rods can be summerized as follows : (Sh)=0.115(Gr・m×Sc)^<1/3> Furthermore, effects of the heat of solution of carbon and the rates of heat-transfer on the dissolution process were briefly discussed.
社団法人日本鉄鋼協会の論文
1967-11-01