| Effect of RE on Granulation of Eutectic Carbide in Ledeburite Steel |
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| 作者姓名： | Wang Shuqi Jiang Qichuan |
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| 作者单位： | Department of Material Science，Jilin University of Technology，Changchun 130025，China |
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| 基金项目： | 中国科学院资助项目，59771003， |
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| 摘 要： | ＲｅｃｅｎｔｌｙｔｈｅｂｅｎｅｆｉｃｉａｌａｃｔｉｏｎｓｏｆＲＥｏｎｉｒｏｎａｎｄｓｔｅｅｌｓｈａｖｅｂｅｅｎｒｅｐｏｒｔｅｄａｒｏｕｎｄｔｈｅｗｏｒｌｄ．ＲＥｃａｎｎｏｔｏｎｌｙｄｅｏｘｉｄｉｚｅａｎｄｄｅｓｕｌｐｈｕｒｉｚｅｔｈｅｍｅｌｔａｎｄｆ...
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| 关 键 词： | Rare earths Ledeburite steel Eutectic carbide Heat treatment Granulation |
Effect of RE on Granulation of Eutectic Carbide in Ledeburite Steel |
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| Wang Shuqi,Jiang Qichuan.Effect of RE on Granulation of Eutectic Carbide in Ledeburite Steel[J].Journal of Rare Earths,1998,16(4):290-294. |
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| Authors: | Cui Xianghong He Zhenming |
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| Abstract: | The effect of RE on granulation of eutectic carbide in ledeburite steel was studied. The mechanism of RE action was also discussed. The results show that by addition of RE compounds, the austenitic grains and eutectic carbide are fined, and the amount of divorced eutectic increases. Moreover, crystal defects, such as twins in M 7C 3, increase and the segregation of Cr and Mo decreases, which reduces the stability of carbide. Thus RE can accelerate the dynamic processes of eutectic carbide granulation. The satisfactory result of granulation of carbide was obtained in the ledeburite steel modified by RE compounds. |
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| Keywords: | Rare earths Ledeburite steel Eutectic carbide Heat treatment Granulation |
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