Abstract

The nucleation behavior of liquid iron with various iron oxides was investigated through an in situ synchrotron radiation analysis and undercooling measurements. When Al and Si were added into the liquid in an oxygen atmosphere, three typical nucleation behaviors with three different undercooling values were observed during a thermocycling treatment. Further investigation showed that the nucleation undercooling (ΔT) increased linearly with variations in the nearest neighbor distance (r1) values of the liquid.

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