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Acta Metall Sin  1992, Vol. 28 Issue (6): 52-58    DOI:
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EVALUATION OF COMPONENT ACTIVITY IN C-Fe-X(X=Si; Mn, Cr, Ni) MELTS
JIANG Guochang;ZHANG Xiaobing;XU Kuangdi Shanghai University of Technology Correspondent Department of Metallargy and Materials Engineering; Shanghai University of Technology; Shanghai 200072
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JIANG Guochang;ZHANG Xiaobing;XU Kuangdi Shanghai University of Technology Correspondent Department of Metallargy and Materials Engineering; Shanghai University of Technology; Shanghai 200072. EVALUATION OF COMPONENT ACTIVITY IN C-Fe-X(X=Si; Mn, Cr, Ni) MELTS. Acta Metall Sin, 1992, 28(6): 52-58.

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Abstract  The parameters in the polynomial expression of partial mole free energy of Cwere evaluated by value fitting method on the basis of boundary conditions of liquid domainon the system C-Fe-X(X=Si, Mn, Cr, Ni). Then the activity coefficient of the element Xmaybe calculated with the I-D method. The approach suggested is proved to be useful for theactiveity evaluation of every element in the whole liquid domain of the concerncd 4C-Fe-Xternary systems. The results are found in a good agreement with those of citedprovious literatures.
Key words:  component activity coefficient      C-Fe-Mn system      C-Fe-Si system      C-Fe-Cr system      C-Fe-Ni system     
Received:  18 June 1992     
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