熔鉄中の炭素の活量におよぼす Ni, Co, W, Mo の影響 : 合金熔鉄中の炭素の活量に関する研究 I

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The equilibrium of carbon monoxide-carbon dioxide mixtures with carbon dissolved in liquid iron alloys has been studied at 1560℃ and represented by the equation : C__-(in liquid iron or alloy)+CO_2(gas)=2CO(gas) The results show fairly good agreement with the previous works on the iron-cabon system by Richardson and Dennis (F. D. Richardson, W. E. Dennis, Trans. Faraday Soc., 1953 Vol.49, pp.171∿180) and by Rist and Chipman (A. Rist, J. Chipman, Rev. de Metall. 1926, 53, pp.1∿12) Experimental difficulties arising from the deposition of carbon by decomposition of carbon monoxide have required restriction of the experiments to low-carbon alloys (0.1∿0.3%C). The relationship between the activity of carbon and the concentration of carbon and alloy elements, j, are expressed by the parameters e^(j)_c=d log fc/d[%j] equivalent to the effect of one percent of the alloy on the logarithm of the activity coefficient of carbon as follows : C+0.200 Ni+0.012 Co+0.012 W-0.003 Mo-0.009
1959-06-01