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| THERMODYNAMIC PROPERTIES OF Fe-Cu-C AND Fe-Cu-Co-C MELTS |
| by PENG Ruiwu; WANG Guangyu; ZHANG Junyue (Shanghai Institute of Metallurgy; Academia Sinica) |
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Cite this article:
by PENG Ruiwu; WANG Guangyu; ZHANG Junyue (Shanghai Institute of Metallurgy; Academia Sinica). THERMODYNAMIC PROPERTIES OF Fe-Cu-C AND Fe-Cu-Co-C MELTS. Acta Metall Sin, 1983, 19(3): 77-83.
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Abstract The solubility of C and the activity coefficient of Cu and Fc in Fc-Cu-C and Fc-Cu-Co-C systems at 1550℃ were calculated. The results indicate that the activity coefficient of Cu increases and of Fe decreases with the increase of C content. On the basis of data obtained, the first and second order activity interaction coefficients in Fc-Cu-C systcm and interaction coefficients of free energy or enthalpy at constant activity as well as the partial molar heat of mixing of C affected by the Cu content were estimated. Compared with the thermodynamic functions of other Fc-j-C systems after previous works, the regular correlation between these thermodynamic properties and the atomic number of j element seems to be noticeable.
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Received: 18 March 1983
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