Fe-Mn-S 系の 1330℃, 1615℃ における等温状態図

概要

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The phase diagrams of solid and liquid Fe-Mn-S systems were determined by using the recent technique such as the levitation melting and electronprobe microanalysis. The results at 1330℃ show that molten sulphide phase is equilibriated with solid iron containing less than 0.14% manganese and contains less than 0.85% manganese. The solid solution of FeS and MnS is in equilibrium with iron containing more manganese than this critical content and it behaves in a slightly negative manner on the basis of Raoult's law. At 1615℃, the separation into two liquid phases occurs readily with the addition of a small amount of manganese. The compositions of two coexisting phases agree with those previously obtained by KORBER and OLSEN in spite of the fact that their sulphide was seriously contaminated by the cruicible material. The present results confirm the practical impossibility of the singular desulphurization of liquid iron by manganese.
社団法人日本鉄鋼協会の論文
1971-11-01