Solubilities of nitrogen in liquid Fe-Ti, Fe-V, Fe-Cr, Fe-Mo, and Fe-W alloys are determined in the temperature range of 1580°C to 1 680°C by sampling method.The results obtained show that addition of Ti, V, Cr, Mo, and W increases the solubility of nitrogen in liquid iron. The effects of alloying elements on the activity of nitrogen in liquid iron at 1 580° are expressed as follows:logf TiN=-0.9 [%Ti] <0.15%Ti, PN2=0.040.17atm logf VN=-0.10 [%V] <6.5%Vlogf CrN=-0.047 [%Cr] <9%Cr logf MoN=-0, 009 [%Mo] <9%Mo logf WN=-0.003 [%W] <9%W.
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Ishii et al. (1982) studied this question.
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