ChemInform Abstract: THERMODYNAMIC PROPERTIES OF MANGANESE‐SILICON MELTS

Thermodynamics of Titanium and Nitrogen in Fe-Si Melt

“…9. The lines calculated using different e Si Ti values reported by other workers [2][3][4] are also shown in the figure. In this calculation, the e N Si value of 0.0491 at 1 873 K determined in the present study was used.…”

“…5, and it can be expressed as 177.5/TϪ0.12. The thermodynamic parameters determined in the present study are compared with previous results [2][3][4] in Table 3. where K 4 is the equilibrium constant for Reaction (4), and f N is the activity coefficient of nitrogen in 1 mass% standard state in liquid iron.…”

“…Limited investigations have been carried out on the thermodynamics of Fe-Si-Ti 2,3) and Fe-C-Si-Ti system. 4) The e Si Ti value in liquid iron was first reported as 2.1 at 1 873 K by Batalin et al 2) However, this value is too large to explain the titanium nitride formation or the deoxidation equilibria in practical processes. Yuanchang et al 4) determined the first-and second-order interaction parameter values of e Si Ti and r…”

Interaction between Silicon and Titanium in Molten Steel.

“…However, interaction parameter between silicon and titanium in steels have been reported only by Batalin et al 1) Their value is too large to explain the deoxidation equilibrium of the practical process and their method of experiment might have any problems.…”

Silicon Deoxidation Equilibrium of Molten Fe-Mo Alloy

“…For example, for the calculation of the silicon deoxidation equilibria in alloyed steel including molybdenum, it is necessary to know the interaction parameter of molybdenum for silicon, of which a very large positive value is previously reported. 1,2) When the silicon deoxidation equilibria for the alloyed steel are calculated using the value in the literature, the oxygen content of molten iron remarkably decreases with the increase in the molybdenum content. On the other hand, in practical operation, the remarkable decrease of the oxygen content has not been found.…”