Modeling of the Thermodynamic Properties of Liquid Fe-Ni and Fe-Co Alloys From the Surface Tension Data

Archives of Metallurgy and Materials - Tập 56 Số 1 - Trang 13-23 - 2011
W. Gąsior1, Przemysław Fima1, Z. Moser1
1Institute of Metallurgy and Materials Science Polish Academy of Sciences, 30-059 Kraków, 25 Reymonta St., Poland

Tóm tắt

Modeling of the Thermodynamic Properties of Liquid Fe-Ni and Fe-Co Alloys From the Surface Tension DataRecently proposed method of modeling of thermodynamic properties of liquid binary alloys from their surface tension data is described. The method utilizes Melford and Hoar equation, relating surface tension with excess Gibbs free energy, combined with new description of the monatomic surface layer and β parameter. The method is tested on Fe-Ni and Fe-Co alloys and the obtained results show very good agreement with experimental thermodynamic data of other authors. The model allows also to calculate the surface tension from thermodynamic data, and it gives better agreement with experimental results than those modeled with the use of Butler equation and traditionally defined monatomic surface layer and β = 0.83.

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Archives of Metallurgy and Materials

Tập 56 Số 1

13-23

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