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Table 1 Alloy composition and diffusion coefficients

From: Phase field assisted analysis of a solidification based metal refinement process

(a) Nominal alloy composition C0 and segregation coefficients k of the impurity elements.

Element

Mn

Fe

Si

CO [%wt]

1.14e-2

4.8e-3

4.6e-3

k

0.64

0.022

0.1

(b) Diffusion coefficient in liquid for the impurity elements in terms of Arrhenius law \(D_{liq}=D_{0}\exp \left (\frac {-E}{RT}\right)\)

(Sun et al. 2013). Diffusion length l D = D/V with V = 2 μms−1 and T = 932.5 K

Element

Fe

Mn

Si

D0 [cm2s −1]

2.34e-3

1.93e-3

1.34e-3

E [Jmol −1]

4e4

3.1e4

3e4

lD [cm]

0.067

0.177

0.1395