| 低频电磁铸造对7050铝合金羽毛晶组织缺陷的影响 |
| |
| 引用本文： | 左玉波,赵志浩,朱庆丰,李磊,王洋,崔建忠.低频电磁铸造对7050铝合金羽毛晶组织缺陷的影响[J].铸造技术,2007,28(5):649-652. |
| |
| 作者姓名： | 左玉波 赵志浩 朱庆丰 李磊 王洋 崔建忠 |
| |
| 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 |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| |
| 摘 要： | 常规DC铸造7050铝合金铸锭常常含有羽毛晶组织缺陷.采用低频电磁铸造技术,半连续铸造制备了直径为200 mm的7050铝合金锭坯,考察了电磁场对羽毛晶组织缺陷的影响.结果表明,在低频电磁场作用下,半连续铸造组织得到显著细化,为均匀细小的球形和多边形等轴晶组织,有效抑制了羽毛晶组织缺陷的产生.
|
| 关 键 词： | 电磁铸造 羽毛晶 宏观组织 微观组织 7050铝合金 |
| 文章编号： | 1000-8365(2007)05-0649-04 |
| 修稿时间： | 10 14 2006 12:00AM |
Influence of Low Frequency Electromagnetic Casting on Feather Crystal Defectof 7050 Aluminum Alloy |
| |
| ZUO Yu-bo,ZHAO Zhi-hao,ZHU Qing-feng,LI Lei,WANG Yang,CUI Jian-zhong.Influence of Low Frequency Electromagnetic Casting on Feather Crystal Defectof 7050 Aluminum Alloy[J].Foundry Technology,2007,28(5):649-652. |
| |
| Authors: | ZUO Yu-bo ZHAO Zhi-hao ZHU Qing-feng LI Lei WANG Yang CUI Jian-zhong |
| |
| Affiliation: | Key Lab of EPM, Ministry of Education, Northeastern University, Shenyang 110004, China |
| |
| Abstract: | Feather crystals are often existed in conventional DC casting 7050 Al alloy ingots. 7050 Al alloy ingots with diameter of 200 mm were prepared semi-continuously by Low Frequency Electromagnetic Casting process (LFEC) and influence of electromagnetic field on feather crystals was investigated. The results show that under the low frequency electromagnetic field, the structures are refined significantly and the grains are uniform and fine global or polygonal equiaxed grains, thus prevent the formation of feather crystals in LFEC 7050 Al alloy ingots. |
| |
| Keywords: | Electromagnetic casting Feather crystal Macrostructure Microstructure 7050 Al alloy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
