Interaction Parameters of Alloying Elements in Molten Iron

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  • 熔鉄中の諸元素間の相互作用母係数
  • ヨウテツ チュウ ノ ショ ゲンソ カン ノ ソウゴ サヨウ ボ ケイスウ

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The interaction parameters of alloying elements in molten iron were calculated statistico-thermodynamically by using relatively simple models. The interaction parameter εO(B) between a substitutional solute B and a substitutional solute C is given as follows:<BR>(This article is not displayable. Please see full text pdf.) <BR>and that between a substitutional solute B and a interstitial solute C is given by<BR>(This article is not displayable. Please see full text pdf.) <BR>The interchange energy W in the above equations was estimated from the following modified Mott’s equation:<BR>(This article is not displayable. Please see full text pdf.) <BR>where δA and δB are the solubility parameters, XA and XB are the electronegativities of the two pure components respectively, VM is the molar volume of mixture, and \barn is the appropriate number of AB bonds in the mixture. The values of the interaction parameters thus calculated were compared with those determined experimentally in Fe-Cr-X, Fe-Ni-X, Fe-C-X and Fe-S-X systems, and reasonable agreements were obtained.

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