| 纵向强磁场对MnBi/Bi共晶定向凝固组织的影响 |
| |
| 引用本文： | 李喜,任忠鸣,邓康,壮云乾,徐匡迪. 纵向强磁场对MnBi/Bi共晶定向凝固组织的影响[J]. 金属学报, 2005, 41(6): 588-592 |
| |
| 作者姓名： | 李喜 任忠鸣 邓康 壮云乾 徐匡迪 |
| |
| 作者单位： | 上海大学材料科学与工程学院,上海,200072 |
| |
| 基金项目： | 国家自然科学基金项目50234020,50225416,59871026科技部基础研究快速反应项目上海市科委项目资助 |
| |
| 摘 要： | 进行了纵向强磁场下MnBi／Bi共晶定向凝固实验研究，并从热力学的角度分析了强磁场对MnBi／Bi共晶定向凝固组织的影响，发现磁场有利于纤维状MnBi／Bi共晶定向凝固组织的形成，扩大了形成纤维状共晶组织的速度范围；在同一生长速度下随着磁场强度的增加，MnBi／Bi共晶纤维组织变得更加规则，MnBi纤维粗化，纤维间距增大；而且强磁场的施加，使MnBi的形态发生了变化，小平面生长特性增强。
|
| 关 键 词： | 强磁场 MnBi／Bi共晶 定向凝固 |
| 文章编号： | 0412-1961(2005)06-0588-05 |
| 收稿时间： | 2004-09-02 |
| 修稿时间： | 2005-01-18 |
Effect of High Vertical Magnetic Field on Directional Solidification Structure of Eutectic MnBi/Bi |
| |
| LI Xi,REN Zhongming,DENG Kang,ZHUANG Yunqian,XU Kuangdi. Effect of High Vertical Magnetic Field on Directional Solidification Structure of Eutectic MnBi/Bi[J]. Acta Metallurgica Sinica, 2005, 41(6): 588-592 |
| |
| Authors: | LI Xi REN Zhongming DENG Kang ZHUANG Yunqian XU Kuangdi |
| |
| Affiliation: | Department of Materials Science and Engineering, Shanghai University, Shanghai 200072 |
| |
| Abstract: | Effect of high vertical magnetic field on the directional solidification structure of eutectic MnBi/Bi has been investigated. It has been found that high magnetic field has enhanced the formation of MnBi fiber and make the directional solidification structure of eutectic MnBi/Bi more regular; with the increase of the intensity of the magnetic field, the average spacing and diameters of MnBi fibers increase at same growth rate; magnetic field makes the morphology of MnBi phase change and enhances the faceted growth character of MnBi phase. |
| |
| Keywords: | high magnetic field MnBi/Bi eutectic directional solidification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《金属学报》浏览原始摘要信息 |
|
点击此处可从《金属学报》下载全文 |
