| 旋转磁场对Bi-In合金凝固微观组织的影响 |
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| 引用本文： | 陈志,陈长乐,郝丽梅,洪振宇. 旋转磁场对Bi-In合金凝固微观组织的影响[J]. 铸造, 2007, 56(10): 1041-1043,1047 |
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| 作者姓名： | 陈志 陈长乐 郝丽梅 洪振宇 |
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| 作者单位： | 1. 西北工业大学理学院应用物理系,陕西西安,710072
2. 西安科技大学基础部,陕西西安,710054 |
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| 摘 要： | 研究了常规条件和旋转磁场条件下Bi-In合金的凝固组织特性。试验结果表明:旋转磁场条件下的Bi-63%In亚共晶合金、Bi-69%In过共晶合金的组织均得到了改善和冷却速率明显加快。分析认为枝晶的碎断和细化主要是旋转磁场所致,并从磁流体力学和固/液自由能两个方面进行了详细的阐述。
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| 关 键 词： | 旋转磁场 Bi-In合金 枝晶碎断 熔体流动 凝固 |
| 文章编号： | 1001-4977（2007）10-1041-04 |
| 修稿时间： | 2007-04-022007-05-29 |
Effect of Rotating Magnetic Field on the Solidification Microstructures of Bi-In Alloys |
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| CHEN Zhi,CHEN Chang-le,HAO Li-mei,HONG Zhen-yu. Effect of Rotating Magnetic Field on the Solidification Microstructures of Bi-In Alloys[J]. Foundry, 2007, 56(10): 1041-1043,1047 |
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| Authors: | CHEN Zhi CHEN Chang-le HAO Li-mei HONG Zhen-yu |
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| Abstract: | The influence of the common condition and rotating magnetic field(RMF)condition on the solidification microstructure of Bi-In alloys is studied. Experiment results indicate that RMF can improve micrastructures of Bi-63%In hypoeutectic alloys and Bi-69%In hypereutectic alloys, increase cooling velocity distinctly. It is analysed in detail that RMF is the main cause of fragmentation and refining dendritic from magnetic hydrodynamics and solid/liquid interface free energy two aspects. |
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| Keywords: | rotating magnetic field Bi-In alloys dendritic fragmentation metal flow solidification |
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