溶融鉄合金の水素溶解度について

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The solubility of hydrogen in liquid cobalt and in liquid iron alloys have been determined by Sieverts' method at the temperature range from 1550° to 1670℃ and under an atmospheric pressure of hydrogen. The solubility of hydrogen in liquid iron decreases by addition of W, Mo, Cu and Co, and increases by addition of Ti, Nb, V and Cr. The results obtained are summarized as follows : 1. Solubility of hydrogen in liquid cobalt. log K_<Co>(=[%H]/√<P_<H_2>>)=-1940/T-1.639 2. Interaction parameter in iron alloys. ∂log f^<(Co)>_H/∂[%Co]=0.00016……<50%Co ∂log f^<(Cr)>_H/∂[%Cr]=-0.0056……<20%Cr ∂log f^<(Mo)>_H/∂[%Mo]=0.0014……<30%Mo ∂log f^<(W)>_H/∂[%W]=0.0048……<20%W ∂log f^<(V)>_H/∂[%V]=-28.9/T+0.0087……<20%V ∂log f^<(Nb)>_H/∂[%Nb]=-37.3/T+0.0166……<15%Nb ∂log f^<(Ti)>_H/∂[%Ti]=-126/T+0.0485……<2%Ti ∂log f^<(Cu)>_H/∂[%Cu]=0.0025……<10%Cu
社団法人日本鉄鋼協会の論文
1967-02-01