| Role of RE and Mg on Graphitization of Spheroidal Graphite Malleable Cast Iron |
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| 作者姓名： | 刘金海 楼恩贤 方刚 |
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| 作者单位： | Liu Jin-Hai(Hebei Institute of Technotogy，Mianjin 300130，China)Lou En-Xian; Fang Gang(Beijing Agricultural Engineering University) |
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| 摘 要： | ＲｏｌｅｏｆＲＥａｎｄＭｇｏｎＧｒａｐｈｉｔｉｚａｔｉｏｎｏｆＳｐｈｅｒｏｉｄａｌＧｒａｐｈｉｔｅＭａｌｌｅａｂｌｅＣａｓｔＩｒｏｎ￥ＬｉｕＪｉｎ－Ｈａｉ（ＨｅｂｅｉＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｔｏｇｙ，Ｍｉａｎｊｉｎ３００１３０，Ｃｈｉｎａ）...
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Role of RE and Mg on Graphitization of Spheroidal Graphite Malleable Cast Iron |
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| Liu Jin-Hai.Role of RE and Mg on Graphitization of Spheroidal Graphite Malleable Cast Iron[J].Journal of Rare Earths,1994(3). |
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| Authors: | Liu Jin-Hai |
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| Abstract: | Spheroidal graphite malleable cast iron is a new structural material developed in the recent years. This paper studies the influence of the residual content of rare earth and magnesium on the nodule counts. the time of first stage graphitization and the rate of ferritization of it. Moreover, the role of sulfides of rare earth and magnesium in the process of graphitization has been analyzed. The results show that the residual content of rare earth and magnesium has a notable influence on the graphitic nodule counts and the time of the first stage graphitization of spheroidal graphite, but has unremarkable influence on the time of the second stage graphitization. There are a large number of spherical sulfides of rare earth and magnesium in as-cast structure, which will act as the nucleus of graphite in the process of first stage graphitization. |
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| Keywords: | Rare earth Magnesium Spheroidal graphite malleable cast iron Grapbitization |
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