Formation of Lamellar and Spheroidal Graphite in Cast Iron in Relation to the Micro-Segregation of Silicon
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概要
- 論文の詳細を見る
By the addition of ferrosilicon to molten cast iron, not only is there the inoculating effect but also under certain conditions spheroidal graphite can be formed. In order to investigate the role of silicon as an additive, experiment was carried out using the potentiostatic technique as a means of etching the primary structure. When the melt was treated with large amounts of refined ferrosilicon, microregions in which silicon was highly concentrated were observed in the cast state and spheroidal graphites were mostly formed in such regions. This suggests that the formation of spheroidal graphite is related to the local super-saturation of carbon caused by adding silicon to the melt.
- 東北大学の論文
著者
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OTOTANI Tohei
The Research Institute for Iron, Steel and Other Metals
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Ototani Tohei
The Research Institute For Iron Steel And Other Metals
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SATO Takashi
The Research Institute for Iron, Steel and Other Metals
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MARUYAMA Masuteru
Hiroshima University
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- Effect of Calcium on Iron and Steel Making : On the Mechanical Properties of Plain Carbon Steel
- Effect of Calcium on Iron and Steel Making : Non-Metallic Inclusion and Austenite Grain Size of Plain Carbon Steel
- Formation of Lamellar and Spheroidal Graphite in Cast Iron in Relation to the Micro-Segregation of Silicon
- Effects of Sulphur, Oxygen and Silicon on Graphite Precipitation in Calcium Graphite Steel