Nucleation Mechanism of Iron in an External Magnetic Field |
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| Authors: | Yuqing Li Wenbin Fan Xi Li Wei Ren Yongle Li |
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| Affiliation: | Physics Department,International Centre for Quantum and Molecular Structures,Shanghai Univer-sity,Shanghai 200444,China;State Key Laboratory of Advanced Special Steels,Shanghai University,Shanghai 200072,China;Department of Chemistry,Fudan University,Shanghai 200433,China;State Key Laboratory of Advanced Special Steels,Shanghai University,Shanghai 200072,China;Shanghai Key Lab of Advanced High-temperature Materials and Precision Forming,Shanghai Jiao Tong University,Shanghai 200240,China |
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| Abstract: | In this work, the solidification of liquid iron with or without external magnetic field was investigated by using two molecular dynamics methods, namely direct cooling and two-phase simulation. The influence of external magnetic field on the solidification is characterized by the critical temperature and radial distribution functions. Our computational results show that under external magnetic field, the solidification point tends to decrease significantly. By further analyzing the diffusion coefficients and viscosity, we attribute the effect to the stronger fluctuation of liquid iron atoms driven by the external magnetic field. |
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| Keywords: | Nucleation Iron Magnetic field Molecular dynamics |
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