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Modeling of the surface tension of liquid Fe-P alloy by calculation of liquidus line in Fe-P binary system

Published online by Cambridge University Press:  01 June 2006

Han S. Kim ,
Y. Kobayashi  and
K. Nagai
Han S. Kim*
Affiliation:
Metallurgical Processing Group, Steel Research Center, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047 Japan
Y. Kobayashi
Affiliation:
Metallurgical Processing Group, Steel Research Center, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047 Japan
K. Nagai
Affiliation:
Metallurgical Processing Group, Steel Research Center, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047 Japan
*
a) Address all corresponding to this author. e-mail: kim.han-soo@nims.go.jp
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Abstract

The surface tension of the Fe-P binary liquid solution was computed using a Butler's model in wide composition and temperature ranges by adopting the activity coefficient data that were evaluated from the phase diagram calculation. In the surface tension modeling, the Fe-P binary system was assumed as the Fe-Fe3P pseudo-binary system. The results of the computation were critically compared with the experimental data of the literature considering the effects of the size of the adsorbed elements and the interactions among them. The results of the computation at 1823 K showed good agreement with the selected experimental data of the literature in a wide composition range from 0 to 15 mass%P. Furthermore, the results of the computation at 0.5 mass%P showed good correlation with the selected experimental data of the literature in a wide temperature range from 1823 K to 1923 K.

Keywords

AdsorptionPhase equilibriaSurface chemistry

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Type
Articles
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Journal of Materials Research , Volume 21 , Issue 6 , June 2006 , pp. 1399 - 1408
Copyright
Copyright © Materials Research Society 2006

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