| 电磁搅拌对铸坯化学成分偏析影响机理 |
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| 引用本文： | 吴夜明,姚留枋. 电磁搅拌对铸坯化学成分偏析影响机理[J]. 特殊钢, 1999, 20(3): 13-16 |
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| 作者姓名： | 吴夜明 姚留枋 |
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| 作者单位： | 钢铁研究总院,北京100081 |
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| 摘 要： | 提出溶质析出－扩散机理；在固－液界面处的溶质析出速率取决于扩散速率，溶质从固－液界面的传质速率取决于溶质的扩散速率。在此基础上，建立 溶质在固液相平衡分配系数，有效分配系数，扩散系数，铸坯凝固系数之间相互关系的数学模型。
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| 关 键 词： | 电磁搅拌 偏析 化学成分 连铸 铸坯 数学模型 |
Effect Mechanism of Electromagnetic Stirring on Segregation of Chemical Composition in Cast Billet |
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| Wu Yeming,Yao Liufang. Effect Mechanism of Electromagnetic Stirring on Segregation of Chemical Composition in Cast Billet[J]. Special Steel, 1999, 20(3): 13-16 |
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| Authors: | Wu Yeming Yao Liufang |
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| Abstract: | A mechanism of solute precipitatingdiffusing has been advanced that the solute precipitating rate at solid liquid interface diffusing rate,depends on solidification rate, and the rate of transfer mass depends on diffusing rate. Based on the mechanism, a mathematical model that describes the relation of equilibrium distribution ratio between liquid and solid phase, effective distribution ratio, diffusion and solidification coefficient of concast billet has been established. |
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| Keywords: | Electromagnetic Stirring Segregation Mechanism |
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