<報文>溶鉄中の窒素, 水素の相互作用係数に及ぼす諸元素の影響について

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  • ヨウテツ チュウ ノ チッソ , スイソ ノ ソウゴ サヨウ ケイスウ ニ オヨボス ショ ゲンソ ノ エイキョウ ニ ツイテ
  • <Original Papers>The Effects of Alloying Elements on the Interaction Parameter of Nitrogen and Hydrogen in Liquid Iron

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Physico-chemical behavior of alloying elements in molten iron has become the subject of numerous investigations during the past 25 years. Consequently, the mutual effects of elements dissolved in the iron-rich solutions, such as Fe-C-X, Fe-N-X, Fe-H-X, Fe-O-X and Fe-S-X where X represents an alloying element, have gradually come to be better understood. Thermodynamic interaction parameter ε^<(X)>_N, i.e., [numerical formula] where r_N is the activity coefficient and N_X is the mole fraction of component X is critically examined by using the solubility data already published by many researchers. It has been found that the interaction parameter ε^<(X)>_N and the atomic number of the alloying element follows a regular periodic pattern. The relation between ε^<(X)>_H and the atomic number of alloying element has been also considered.

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