Conclusions
A study was made of the effects of temperature and composition on σ of Fe-C melts. It was found that, in the hypoeutectic range of compositions, the polytherms of σ of the melts investigated are not straight lines and are characterized by a positive temperature coefficient of σ. Carbon exhibits surface activity in liquid iron. A hypothesis is advanced in explanation of this phenomenon. The wetting of alumina by Fe-C melts was investigated at various carbon concentrations and temperatures. Raising the carbon content improves wetting in the system (Fe-C)L-A12O3.
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Translated from Poroshkovaya Metallurgiya, No. 10 (118), pp. 57–61, October, 1972.
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Nizhenko, V.I., Floka, L.I. Effect of carbon on the surface properties of liquid iron. Powder Metall Met Ceram 11, 819–823 (1972). https://doi.org/10.1007/BF00844707
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DOI: https://doi.org/10.1007/BF00844707