The Activity of Nitrogen in the Liquid Fe-N-Cr Alloy Based on the Non-Random Solubility Model by Schmid - Fetzer


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The values of nitrogen solubility in the liquid Fe-N-Cr alloy and in liquid chromium were determined experimentally. The alloy of a chromium content of 8; 13; 18; 25; 35; and 69, respectively, and chromium of purity of 99.7 wt % were subjected to experiment. The original data on nitrogen solubility in liquid iron and the data on nitrogen solubility in liquid chromium (the authors' own studies) were converted in relation to the new standard state that is represented by pure nitrogen. The energy parameter, h Fe-Cr, was determined based on literature data. Using the coefficient values for the Fe-Cr alloy, calculated on the basis of our own investigation results, the values of the energy parameter h were determined. The determined energy parameter h in the form of a temperature function relationship will enable the determination of the numerical values of the for the Fe-Cr alloy of any arbitrary composition.



Materials Science Forum (Volumes 638-642)

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Edited by:

T. Chandra, N. Wanderka, W. Reimers , M. Ionescu






J. Siwka and A. Hutny, "The Activity of Nitrogen in the Liquid Fe-N-Cr Alloy Based on the Non-Random Solubility Model by Schmid - Fetzer", Materials Science Forum, Vols. 638-642, pp. 3021-3025, 2010

Online since:

January 2010





[1] J. Siwka, D. Sc. Thessis, Diss. TUCz, serie Metallurgy, Czestochowa, 8, (1999).

[2] A. G. Svyazhin, , J. Siwka, , Z. Skuza, et al. Crystallization, the Cast Structure and Bubble Formation in High Nitrogen Steels. Transaction. Indian Institute of Metals, vol. 55(4A), pp.183-191, (2002).

[3] A. Hutny, ,J. Siwka, The Dependence of Activity Coefficient on Intensive Thermodynamic Parameters in a Liquid Fe-N-V Alloy. Materials Science Forum, vol. 426-432, pp.4401-4410, (2003).

DOI: 10.4028/

[4] R. Schmidt, Lin Jen-Chwen, A.Y. Chang The Activity Coefficient of Nonmetalilic Elements in Binary Liquid Alloys from a Nonrandom Solvation Shell Model. Z. Metallkunde, vol. 75, pp.730-736, (1984).

[5] Jen-Chwen L., R. Schmid, A.Y. Chang Comparision of Solution Models for Nonmetalilic Solutes in Binary Liquid Alloys: Nitrogen in Fe-Cr and Fe-Ni, Metallurgical Trans B, vol. 17B, pp.785-789.

DOI: 10.1007/bf02657141

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