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The Thermodynamic Properties of Fe‐Mn‐C Melt at Reduced Pressure
Author(s) -
Wang Haichuan,
Wang Shijun,
Zhou Yun,
Gao Li,
Dong Yuanchi,
Sun Haiping
Publication year - 2005
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200506088
Subject(s) - manganese , solubility , mole fraction , carbon fibers , alloy , chemistry , fraction (chemistry) , inorganic chemistry , analytical chemistry (journal) , materials science , metallurgy , organic chemistry , composite number , composite material
The solubility of carbon in the Fe‐Mn‐C system was measured under reduced pressure of 1 Pa at 1573 K and 1673 K, respectively. The carbon solubility in terms of mole fraction in the iron based solution was found varying with manganese mole fraction in the solution and with temperature, as x C = 0.1819 + 0.2531 x Mn at 1573 K and x C = 0.1981 + 0.2515 x Mn at 1673K. Manganese has a stronger influence on the carbon solubility at lower pressure than it has at higher pressure. The pressure was found to have an insignificant effect on the carbon solubility when manganese in the melt was absent. The activity interaction parameters between manganese and carbon in the alloy were determined from carbon solubilities at 1573 and 1673 K. Analysis of the experimental results showed that under vacuum conditions, the activity interaction parameter of manganese with carbon is higher than that at atmospheric pressure.