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| Calculation of the self-formation driving force for composite microstructure in liquid immiscible alloy system | |
| 作者姓名： | LIU Xingjun WANG Cuiping Ikuo OHNUMA Ryosuke KAINUMA Kiyohito ISHIDA CHEN Xiaohu |
| 作者单位： | Department of Materials Science and Engineering,Xiamen University,Xiamen 361005,China;Department of Materials Science,Tohoku University,Sendai 980-8579,Japan,Department of Materials Science and Engineering,Xiamen University,Xiamen 361005,China,Department of Materials Science,Tohoku University,Sendai 980-8579,Japan,Department of Materials Science,Tohoku University,Sendai 980-8579,Japan,Department of Materials Science,Tohoku University,Sendai 980-8579,Japan,School of Materials Science and Engineering,National Huaqiao University,Quanzhou 362021,China |
| 基金项目： | 国家自然科学基金，Fujian International Cooperation Foundation，福建省自然科学基金 |
| 摘 要： | Using Becker's method, we calculate the interfacial energy between two liquid phases in an immiscible system. Based on the Gibbs-Thomson equation, the force acting on the droplet towards the thermal center can be obtained by integrating the interfacial energy between the droplet and matrix liquid phase, which is related to both the radius of a droplet and the temperature gradient. In addition, the forces of gravitation and buoyancy also act on the droplet. The calculated results indicate that the resultant for these forces together mainly decides the microstructure morphology of the solidified alloy. The calculated results are in good agreement with the corresponding experimental results. |
| 关 键 词： | liquid immiscible alloy system interfacial energy composite materials phase diagram |
Calculation of the self-formation driving force for composite microstructure in liquid immiscible alloy system |
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| LIU Xingjun,WANG Cuiping,Ikuo OHNUMA,Ryosuke KAINUMA,Kiyohito ISHIDA,CHEN Xiaohu.Calculation of the self-formation driving force for composite microstructure in liquid immiscible alloy system[J].Progress in Natural Science,2005,15(2):169-173. | |
| Authors: | LIU Xingjun Wang Cuiping Ikuo OHNUMA Ryosuke KAINUMA Kiyohito Ishida Chen Xiaohu |
| Institution: | 1. Department of Materials Science and Engineering,Xiamen University,Xiamen 361005,China;Department of Materials Science,Tohoku University,Sendai 980-8579,Japan 2. Department of Materials Science and Engineering,Xiamen University,Xiamen 361005,China 3. Department of Materials Science,Tohoku University,Sendai 980-8579,Japan 4. School of Materials Science and Engineering,National Huaqiao University,Quanzhou 362021,China |
| Abstract: | Using Becker's method, we calculate the interfacial energy between two liquid phases in an immiscible system. Based on the Gibbs-Thomson equation, the force acting on the droplet towards the thermal center can be obtained by integrating the interfacial energy between the droplet and matrix liquid phase, which is related to both the radius of a droplet and the temperature gradient. In addition, the forces of gravitation and buoyancy also act on the droplet. The calculated results indicate that the resultant for these forces together mainly decides the microstructure morphology of the solidified alloy. The calculated results are in good agreement with the corresponding experimental results. |
| Keywords: | liquid immiscible alloy system interfacial energy composite materials phase diagram |
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