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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 5    No. 3    September 1995

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SOLIDIFICATION OF Zn-Pb ALLOY UNDER SIMULANT MICROGRAVITY CONDITION OF ORTHOGONAL ELECTRIC AND MAGNETIC FIELDS
Zhao Jiuzhou; Guo Jingjie; Jia Jun; Li Qingchun

School of Materials Science and Engineering; Harbin Institute of Technology; Harbin 150001

Abstract:Solidification experiments have been done with Zn-Pb alloy under the simulant microgravity condition of orthogonal electric and magnetic fields. Computer simulation has been carried out for the processes of the coarsening of the dispersion droplets and the formation of the gravity segregation during cooling this kind of alloy in their liquid-liquid temperature regions. Experiments and analyses show that electric and magnetic fields properly selected can decrease the coarsening rate of dispersion droplets greatly and slow down the velocity at which the gravity segregation is formed.

 

Key words: solidification; electric and magnetic fields; computer simulation

ISSN 1672-7029
CN 43-1423/U

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