Behavior of Sulfur in Cast Iron
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概要
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The effects of sulfur on graphite and eutectic cell formations in solidification have been studied in synthetic Fe-C, Fe-C-Si, Fe-C-P and Fe-C-Si-Mn alloys. When sulfur is added as Fe-C-S and Fe-C-Si-S alloys, in each of hyper-eutectic Fe-C and Fe-C-Si alloy systems, there is a range in which no further obstruction of graphitization occurs by the increase of sulfur. The appearance of such a range is considered to be due to the effect of sulfur which promotes graphitization in solidification. At a certain concentration sulfur makes the size of flake graphite maximum and the number of eutectic cells minimum. These effects are interpreted on the basis of the growth and the nucleation theory of crystals. The effect of sulfur on the size of flake graphite is decreased by manganese, which shows the formation of MnS in solidification.
著者
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OHNO Reiichi
The Research Institute for Iron, Steel and Other Metals
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Ohno Reiichi
The Research Instite For Iron Steel And Other Metals
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Ohno R.
The Research Institute for Iron, Steel and Other Metals
関連論文
- Study of Magnesium Treated Nodular Cast Iron by Reducing in the Electric-Arc Furnace
- Behavior of Sulfur in Cast Iron
- A Rate Equation for the Solution of Solid Iron in Liquid Copper
- Thermodynamic Considerations on Desulfurization of Cast Iron in Vacuum Melting
- Kinetic Study of Desulfurization and Deoxidation of Ferroalloys in Vacuum Melting
- Research on the Structural Changes of Cast Iron by Contact Meltlng with Various Oxides
- Rates of Dissolution of Rotating Cobalt Cylinders in Liquid Copper and Cu-Co Alloys
- Deoxidation of Fe-C and Fe-Si Alloys under Reduced Pressures
- Rate of Desulfurization of Ferroalloys in Vacuum Melting