Research on the Relation between Cast Iron and Oxygen. I : The Mechanism of the Formation of White Cast Iron under the Influence of Oxygen
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概要
- 論文の詳細を見る
It has been known that oxygen in the melt gives rise to the tendency of forming white cast iron, but the mechanism of such a phenomenon is yet unknown. We have herein clarified this mechanism on the basis of the atomic arrangement of the melt of cast iron and the double diagram. In molten cast iron, oxygen atoms behave partly as free atoms and partly as Fe-C-O-Fe clusters, and the latter prevents the melt from solidifying at the eutectic point C' (austenite-graphite) by unbalancing the lever relation of E' C' F', with the result that the eutectic point drops from C' to C of austenite-Fe_3C, inducing the formation of white cast iron. Theoretically, the oxygen, content effective for white cast iron formation was estimated to be about 0.01 per cent, an amount equivalent to the carbon percentage corresponding to E-E'.
- 東北大学の論文
著者
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Homma Masao
The Research Instite For Iron Steel And Other Metals
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Iwase Keizo
The Research Institute For Iron Steel And Other Metals
関連論文
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- Studies of the Quality, Relaxation and Wear Resisting Properties of Vanadium High Grade Cast Iron
- Wear Properties of Various Cast Irons Having Different Graphite Shapes
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