| ＣＲＥＭ法半连铸Ａｌ合金过程中电磁场对溶质元素固溶的影响机理 |
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| 引用本文： | 张勤,班春燕,崔建忠,巴启先,路贵民,张北江.ＣＲＥＭ法半连铸Ａｌ合金过程中电磁场对溶质元素固溶的影响机理[J].物理学报,2003,52(10):2642-2648. |
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| 作者姓名： | 张勤 班春燕 崔建忠 巴启先 路贵民 张北江 |
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| 作者单位： | 材料电磁过程教育部重点实验室，东北大学,沈阳 110006 |
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| 基金项目： | 国家重大基础发展规划项目(“973”)(批准号：G199906490501)资助的课题. |
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| 摘 要： | 实验研究了低频交变电磁场作用下， 7075合金半连铸坯微观组织形貌及各溶质元素的固溶 情况；并就电磁场对液固相线位置和结晶间隔的改变进行了测定；此外还数值模拟了电磁场 对半连铸过程中液穴内部温度场和流动场的影响.从电磁场对7075合金凝固过程中的溶质分 配系数，结晶间隔，液穴内部温度场、流动场以及微观组织形貌的影响出发，尝试性地对电 磁场的强制固溶机理进行探讨性的解释和说明.
关键词：
电磁场
半连铸
铝合金
固溶
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| 关 键 词： | 电磁场 半连铸 铝合金 固溶 |
| 文章编号： | 1000-3290/2003/52(10)/2642-06 |
| 收稿时间： | 2002-11-27 |
| 修稿时间： | 3/4/2003 12:00:00 AM |
The forced solution mechanism of alloying agents of 7075 alloy as-cast ingot und er the effects of electromagnetic field |
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| Zhang Qin,Ban Chun-Yan,Cui Jian-Zhong,Ba Qi-Xian,Lu Gui-Min and Zhang Bei-Jiang.The forced solution mechanism of alloying agents of 7075 alloy as-cast ingot und er the effects of electromagnetic field[J].Acta Physica Sinica,2003,52(10):2642-2648. |
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| Authors: | Zhang Qin Ban Chun-Yan Cui Jian-Zhong Ba Qi-Xian Lu Gui-Min and Zhang Bei-Jiang |
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| Abstract: | The influence of electromagnetic field with a low frequency on the microstructure and solute solubility of 7075 alloy produced by CREM process have been investigated. Evolution of the liquidus and solidus as well as the solidification interval are also measured. Meanwhile, the flow pattern and temperature field before and after the application of electromagnetic field is also given by numerical simulation. The forced solution mechanism of alloying agents of 7075 alloy under the effects of electromagnetic field is explained from such factors as solute equilibrium coefficient of distribution, solidification interval, flow pattern and temperature field in sump and microstructure. |
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| Keywords: | electromagnetic field semi_continuous casting aluminum alloy solu bility |
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