On the Behaviour of Graphite in Graphitic Cast Steel
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概要
- 論文の詳細を見る
Graphitic cast steels are in the hypereutectoid range and have spheroidal graphites in the as-cast state. This research can be summarized as follows : (1) Gray cast irons with the strongest graphitizing tendency have oxygen and sulfur contents in the ranges of 20〜30 and 150〜300 ppm, respectively. It can be assumed that their contents of the graphitic cast steels are equal to those of gray cast irons having the strongest graphitizing tendency. (2) Use of carbide slag before and after melting down of raw iron materials effectively decreases oxygen contents of these steels and improves their behaviour of graphitization ; that is, the form of graphite is more spheroidal, nodules are increased and sizes become smaller than those when carbide slag is not used. (3) Concerning the fading phenomena after inoculation, there is almost no degradation in the spheroidal form of graphite, and the size of graphite becomes smaller with the lapse of time.
- 東北大学の論文
著者
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Homma Masao
The Research Institute For Iron Steel And Other Metals Tohoku University
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Homma Masao
The Research Instite For Iron Steel And Other Metals
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MAEKAWA Shizuya
Nippon Seiko Co. Ltd.
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SUZUKI Koreaki
Nippon Seiko Co. Ltd.
関連論文
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- Studies on the Wear Resisting Properties of the Spheroidal Graphite Cast Steel
- Malleable Cast Iron Specially Controlled on the Mutual Relations among Silicon, Manganese and Sulfur
- Some Investigations on the Cerium-treated Cast Iron
- On Various Properties of Nodular Graphite Cast Steel
- Study of Magnesium Treated Nodular Cast Iron by Reducing in the Electric-Arc Furnace
- Refining Method for Refining Cast Iron by the Electrolysis of Slag
- Research on the Structural Changes of Cast Iron by Contact Meltlng with Various Oxides
- Study On Wear Resisting Properties of Deoxidized High Grade Cast Iron. I : On Wear of Flake Graphite Cast Iron
- 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
- Research on the Relation between Cast Iron and Oxygen. I : The Mechanism of the Formation of White Cast Iron under the Influence of Oxygen
- Abnormal Steel and its Structure
- Experimental Research on Super-Heating of Molten Cast Iron
- Research on the Relation between Cast Iron and Oxygen. II : On the Mechanism of the Formation of White Cast Iron in the Presence of Carbide Forming Elements
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- On the Behaviour of Graphite in Graphitic Cast Steel
- Research on the High Silicon Malleable Cast Iron by the Addition of Bismuth
- Welding of Cast Iron and Nodular Graphite Cast Steel. II : Arc-Welding of Nodular Graphite Cast Steel
- Welding of Cast Iron and Nodular Graphite Cast Steel. I : Properties of the Heat Affected Zone of Cast Iron
- Changes in the Graphite Structures of Flake Graphite and Spheroidal Graphite Cast Irons by the Fusion in a Short Time
- Considerations on Super-Heating of Molten Cast Iron
- Rate of Desulfurization of Ferroalloys in Vacuum Melting
- Effect of Simultaneous Addition of Magnesium and Rare Earth Alloy on the Manufacturing of Nodular Graphite Cast Iron