| 电磁场对7050铝合金凝固组织和元素分布影响 |
| |
| 引用本文： | 刘金炎,王家淳,郭世杰,马科,薛冠霞,曹志强.电磁场对7050铝合金凝固组织和元素分布影响[J].材料科学与工艺,2010,18(1):7-10. |
| |
| 作者姓名： | 刘金炎 王家淳 郭世杰 马科 薛冠霞 曹志强 |
| |
| 作者单位： | 苏州有色金属研究院有限公司,苏州,215026;大连理工大学,铸造工程中心,辽宁,大连,116024 |
| |
| 基金项目： | 江苏省自然科技基金项目(BK2008562) |
| |
| 摘 要： | 为了研究中频电磁场对7050铝合金凝固组织和元素分布的影响,在未施加电磁场,施加1000Hz、6000A电磁场和1000Hz、4000A电磁场下进行7050铝合金凝固试验.利用金相显微镜和电子背散射衍射分析技术分析了锭坯微观组织,利用化学分析方法测定溶质元素沿锭坯边部到中心的分布情况.结果表明:外加中频电磁场有效地细化晶粒,影响溶质元素分布.未施加电磁场下,锭坯晶粒最大,发生反偏析;1000Hz、4000A电磁场下,锭坯晶粒次之,发生反偏析;1000Hz、6000A电磁场下,锭坯晶粒最细,发生正偏析.
|
| 关 键 词： | 电磁场 细化晶粒 宏观偏析 7050铝合金 |
Influence of electromagnetic fields on microstructures and solute element distribution of 7050 aluminum alloy during the solidification |
| |
| LIU Jin-yan,WANG Jia-chun,GUO Shi-jie,MA Ke,XUE Guan-xia and CAO Zhi-qiang.Influence of electromagnetic fields on microstructures and solute element distribution of 7050 aluminum alloy during the solidification[J].Materials Science and Technology,2010,18(1):7-10. |
| |
| Authors: | LIU Jin-yan WANG Jia-chun GUO Shi-jie MA Ke XUE Guan-xia and CAO Zhi-qiang |
| |
| Affiliation: | 1. Suzhou Nonferrous Metals Science and Technology;Suzhou 215026;China;2. Research Center of Foundry Engineering;Dalian University of Technology;Dalian 116024;China |
| |
| Abstract: | To study the influence of electromagnetic fields on microstructures and solute element distribution of 7050 aluminum alloy during the solidification,the solidification experiments of 7050 aluminum alloy were performed both in the absence and in the presence of medium-frequency electromagnetic fields (1000 Hz,4000 A and 1000 Hz,6000 A). Microstructures of an ingot were investigated by metallurgical microscope and electron-back-scattering-diffraction,and distributions of alloying elements were investigated by... |
| |
| Keywords: | electromagnetic field crystal grain refinement macrosegregation 7050 aluminum alloy |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《材料科学与工艺》浏览原始摘要信息 |
|
点击此处可从《材料科学与工艺》下载全文 |
|
