| 枝晶尺度溶质再分配对连续铸造凝固过程的影响 |
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| 引用本文： | 冯妍卉,张欣欣,武文斐. 枝晶尺度溶质再分配对连续铸造凝固过程的影响[J]. 热科学与技术, 2003, 2(3): 215-220 |
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| 作者姓名： | 冯妍卉 张欣欣 武文斐 |
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| 作者单位： | 北京科技大学,机械工程学院,北京,100083;包头钢铁学院,能源与环境工程系,内蒙古,包头,014010 |
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| 基金项目： | 国家自然科学基金 ( 5 0 13 60 2 0 )，国家教委“跨世纪人才”基金 |
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| 摘 要： | 阐述了凝固微细尺度结构上的溶质再分配与宏现尺度传热传质现泉之问的关联，总结比较了多种徽现健析模型，并针对反向凝固工艺和传统的薄板坯连铸连轧(CSP)工艺的传热传质现泉进行了数值模拟，与实验数据进行对比分析。结果表明，微细尺度固—液相界面上的溶质再分配对凝固宏观传输过程的影响不可忽略。
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| 关 键 词： | 凝固 传热传质 数值模拟 微观偏析 |
| 文章编号： | 1671-8097(2003)03-0215-06 |
| 修稿时间： | 2003-04-18 |
Effect analysis of micro mass transfer on steel casting solidification process |
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| FENG Yan|hui ,ZHANG Xin|xin ,WU Wen|fei. Effect analysis of micro mass transfer on steel casting solidification process[J]. Journal of Thermal Science and Technology, 2003, 2(3): 215-220 |
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| Authors: | FENG Yan|hui ZHANG Xin|xin WU Wen|fei |
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| Affiliation: | FENG Yan|hui 1,ZHANG Xin|xin 1,WU Wen|fei 2 |
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| Abstract: | The correlation of the solute redistribution at the dendrite|arm|space scale and macro transport phenomena with phase change were discussed. Existing models for the solute redistribution during solidification were reviewed. The typical models were applied for the numerical simulation of heat and mass transfer with phase change for the new inverse casting technology and the traditional CSP technology. The results show that the effect of micro mass transfer models on the perfection of solidification processes cannot be omitted for coupled heat and mass transfer phenomena. |
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| Keywords: | solidification heat and mass transfer numerical simulation microsegregation |
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