The Surface Tension of Liquid Iron Containing Nitrogen and Oxygen
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概要
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The surface tension liquid of Fe–N, Fe–O and Fe–N–O alloys was measured with sessile drop method at 1 823 K. The effect of nitrogen, oxygen and coexistent nitrogen and oxygen on the surface tension of liquid iron was investigated. The results show that both nitrogen and oxygen are surface-active elements in the liquid iron. The surface tension of liquid iron decreased with increasing nitrogen and oxygen contents. The surface-active nature of nitrogen decreases with increasing of oxygen content. The variation of surface tension with the activity of the surface-active elements was obtained as follows: Fe–N alloy: σ=1930–267 ln(1+45<I>a</I>N), [O]=20–30 mass ppmFe–N alloy: σ=1990–318ln(1+130<I>a</I>o), <I>P</I>N2=3.1×10–5atm Fe–O–N alloy: σ=1990–318ln(1+130<I>a</I>o)–(282–7636<I>a</I>o–83152<I>a</I>o2) ln(1+45<I>a</I>N)
- 社団法人 日本鉄鋼協会の論文
- 1998-10-15
著者
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Jun Zhu
Graduate Student Department Of Materials Science And Engineering Faculty Of Engineering Kyushu Insti
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Mukai Kusuhiro
Department Of Materials Sciece And Engineering Faculty Of Engineering Kyushu Institute Of Technology
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Mukai Kusuhiro
Department Of Materials Science And Engineering Faculty Of Engineering Kyushu Institute Of Technolog
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