溶融鉄の水素溶解度におよぼす炭素, 珪素, 燐およびニッケルの影響について

概要

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The solubility of hydrogen in liquid iron, liquid nickel and liquid iron alloys has been studied by SIEVERTS' method at the temperature range of 1450-1670℃ and under the atmospheric pressure of hydrogen. The carbon, silicon and phosphorus decrease the solubility of hydrogen in alloys, while nickel increases it. The iron-silicon alloy has the minimum solubility of hydrogen at the concentration of 31-34%Si. The results obtained are summarized as follows : 1. Solubility of hydrogen in liquid iron log K_<Fe-H>(=[%H]/√<P_<H_2>>)=-1900/T-1.577 2. Solubility of hydrogen in liquid nickel log K_<Ni-H>(=[%H]/√<P_<H_2>>)=-939/T-1.869 3. Interaction parameter in iron alloys ∂log f^<(C)>_H/∂[%C]=414/T-0.204………<2%C ∂log f^<(Si)>_H/∂[%Si]=0.031………<2%Si ∂log f^<(P)>_H/∂[%P]=0.015………<6%P ∂log f^<(Ni)>_H/∂[%Ni]=-10.4/T+0.0040……<50%Ni
社団法人日本鉄鋼協会の論文
1966-12-01