溶接過程における溶滓と溶鋼との間の化学反応に関する物理化学的研究(第 3 報) : 脱酸剤として Fe-Mn と Fe-Al を併用した場合

概要

論文の詳細を見る
A physico-chemical study has been made on the chemical reactions between slags and metals in welding processes using two series of electrodes containing 10% Fe-Al and 5% Fe-Mn, or 15% Fe-Al and 5% Fe-Mn in the coatings as deoxidizers, and the following results were obtained. (1) Equilibrium index K'_<Mn> decreases with increasing basicities of slags B_L and Fe-Al contents in the coatings. The relations between K'_<Mn> and B_L are represented by the following equations; log K'_<Mn(10Al, Mn Deoxidation)>=-0.047B_L+0.167 log K'_<Mn(15Al, Mn Deoxidation)>=-0.047B_L-0.013 (2) K'_<Al> increases with increasing B_L and Fe-Al contents. The relations between K'_<Al> and B_L are represented by the following equations; log K'_<Al(10Al, Mn Deoxidation)>=+0.074B_L+3.175 log K'_<Al(15Al, Mn Deoxidation)>=+0.074B_L+3.517 (3) K'_<SiO_2> decreases with increasing B_L, and increases with increasing Fe-Al contents. The relations between K'_<SiO_2> and B_L are represented by the following equations; log K'_<SiO_2(10Al, Mn Deoxidation)>=-0.408B_L-0.757 log K'_<SiO_2(15Al, Mn Deoxidation)>=-0.408B_L-0.585 (4) K'_<TiO_2> decreases with increasing B_L, and increases with increasing Fe-Al contents. The relations between K'_<TiO_2> and B_L are represented by the following equations; log K'_<TiO_2(10Al, Mn Deoxidation)>=-0.204B_L-1.807 log K'_<TiO_2(15Al, Mn Deoxidation)>=-0.204B_L-1.574 (5) The activity coefficients y_<M_mO_n> of various oxides in weld slags are represented by the following equations, where y_<M_mO_n>⟶1,when B_L⟶ O; log y MnO=+0.047B_L log y Al_2O_3=-0.074B_L log y SiO_2=-0.408B_L log y TiO_2=-0.204B_L
社団法人溶接学会の論文
1962-04-25

溶接過程における溶滓と溶鋼との間の化学反応に関する物理化学的研究(第 3 報) : 脱酸剤として Fe-Mn と Fe-Al を併用した場合

スポンサーリンク

概要

著者

関連論文

スポンサーリンク