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| INTERACTION BETWEEN RARE EARTH ELEMENTS AND CARBON IN LIQUID IRON |
| by DU Ting; YUE Kexiang (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing) (Manuscript received 21 January; 1985; revised manuscript 23 July; 1986) |
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Cite this article:
by DU Ting; YUE Kexiang (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing) (Manuscript received 21 January; 1985; revised manuscript 23 July; 1986). INTERACTION BETWEEN RARE EARTH ELEMENTS AND CARBON IN LIQUID IRON. Acta Metall Sin, 1987, 23(4): 385-388.
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Abstract The influence of rare earth elements on carbon solubility, interaction coefficients as well as equilibrium constants of REC_2 formation in liquid iron were investigated at. 1300, 1400, 1500 and 1600℃. Ce, Y, La, Nd and Sm may increase the solubility of C in liquid iron. The temperature dependences of interaction coefficients between rare earth elements and carbon in either carbon saturated or dilute liquid iron were estimated. It has been proved that various REC_2 are formed in liquid iron under observation of metallography and SEM. The temperature dependences of the equilibrium constants of the reactions of REC_2 formation and the standard free energy of formations of REC_2 in liquid iron were also determined. Five equilibrium diagrams of rare earth elements and carbon have been drawn.
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Received: 18 April 1987
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1 吴夜明,杜挺.钢铁研究总院学报,1983;3(2) :162
2 王龙妹,杜挺.钢铁研究总院学报,1984;4(4) :481
3 Sigowth G K, Elliott J F. Met Sci, 1974; 8:298
4 乐可襄,杜挺,李继宗,沈汝美,金属学报,1987;23:A9 |
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