溶鉄の炭素飽和溶解度におよぼすモリブデン, タングステン, 銅の影響および多元系溶体の炭素の活量計算法

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Effects of molybdenum, wolfram and copper on solubility of graphite in liquid iron were studied at 1550℃. Interaction parameters at graphite saturation were given as follows : (∂Inγ_c/∂N_Mo)N′_<c=0.207>=-3.20, (∂Inγ_c/∂N_W)N′_<c=0.207>=-1.31, (∂Inγ_c/∂N_<Cu>)N′_<c=0.207>=+4.77 A general approximate equation for calculating the activity coefficient of carbon in a multicomponent solution was given as follows : (log γ_c)_<Nc, Nj1, Nj2, >……=(log γ′_c)_<Nc>+Σ(∂logγ_c/∂N_<j1>)_<Nc, O, O, …>×N_<j1> Validity of the above equation was discussed by using the present data. Interaction parameters of an infinite dilute solution and the graphite saturated solution were compared with each other and discussed.
社団法人日本鉄鋼協会の論文
1960-10-01