Solubility of Nitrogen in Liquid Iron and Effect of Carbon, Silicon and Manganese on the Solubility

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Bibliographic Information

Other Title
  • 熔鉄の窒素の溶解度におよぼす炭素, 珪素, マンガンの影響
  • 熔鉄の窒素の溶解度について-I
  • Solubility of nitrogen in liquid iron and iron alloys-I

Description

The solubilities of nitrogen in liquid iron and liquid Fe-C, Fe-Si and Fe-Mn alloys were measured at 1500-1700°C.<BR>The results on liquid iron confirmed that Sievert's law was followed in the range 95 to 760mmHg pressure.<BR>The results obtained were as follows:<BR>(1) The solubility of nitrogen in liquid pure iron was expressed as follows:<BR>%N=1·2×10-5×T+0·0171<BR>(2) The effect of carbon, silicon and manganese on the activity coefficient of nitrogen in liquid iron alloys was calculated by the following relation:<BR>logfN=logC0N-logCN<BR>(3) The effect of alloying elements on the activity coefficient of nitrogen in liquid iron was summarized as below:<BR>logf (C) N=+0·135·%C C<4%<BR>logf (Si) N=+0·048·%Si Si<4%<BR>logf (Mn) N=-0·020%·%Mn Mn<4%<BR>1500-1700°C

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 46 (7), 748-753, 1960

    The Iron and Steel Institute of Japan

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