| 交流磁场对7075铝合金中溶质分布的影响 |
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| 引用本文： | 班春燕,韩逸,龙春仙,崔建忠,巴启先.交流磁场对7075铝合金中溶质分布的影响[J].铸造技术,2006,27(3):263-265. |
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| 作者姓名： | 班春燕 韩逸 龙春仙 崔建忠 巴启先 |
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| 作者单位： | 东北大学材料电磁过程研究教育部重点实验室,辽宁,沈阳,110004 |
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| 摘 要： | 在7075铝合金凝固过程中施加磁场强度为0.06T、频率为30Hz的交流磁场,研究了交流磁场对溶质元素的晶内含量、宏观偏析的影响。从微观角度探讨了磁场对溶质分布的作用机制。实验结果表明:与未施加磁场的凝固试样相比,经过交流磁场处理后,7075铝合金中Zn、Mg、Cu等3种溶质元素的晶内含量均得到显著增加。同时,交流磁场能有效抑制这3种溶质元素的宏观偏析,在交流磁场作用下,试样的偏析率明显减小。
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| 关 键 词： | 7075铝合金 交流磁场 晶内溶质含量 宏观偏析 |
| 文章编号： | 1000-8365(2006)03-0263-03 |
| 收稿时间： | 10 20 2005 12:00AM |
| 修稿时间： | 12 30 2005 12:00AM |
Influence of AC Magnetic Field on the Solute Distribution of 7075 Al Alloy |
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| BAN Chun-yan,HAN Yi,LONG Chun-xian,CUI Jian-zhong,BA Qi-xian.Influence of AC Magnetic Field on the Solute Distribution of 7075 Al Alloy[J].Foundry Technology,2006,27(3):263-265. |
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| Authors: | BAN Chun-yan HAN Yi LONG Chun-xian CUI Jian-zhong BA Qi-xian |
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| Affiliation: | The Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China |
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| Abstract: | An AC magnetic filed with the intensity of 0.06T and frequency of 30Hz was exerted on 7075 alloy during solidification process. The effect of AC magnetic field on the solute content inside grain and macro-segregation of 7075 Al alloy was studied. It is found that, comparing with the sample solidified in the absence of magnetic field, the solute content inside grain of 7075 Al alloy including Zn, Mg and Cu obviously increase solidified under AC magnetic field. Furthermore, AC magnetic field can effectively reduce the macro-segregation of the solute elements and the segregation ratio was reduced evidently. |
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| Keywords: | 7075 Al alloy AC magnetic field Solute content inside grain Macro-segregation |
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