Mechanism of pulse magneto-oscillation grain refinement on pure Al |
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| Authors: | Pei Ning Gong Yongyong Li Renxing Xia Zanqi Zhai Qijie |
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| Affiliation: | 1. College of Science, Shanghai University, Shanghai 200444, China
2. Shanghai Key Laboratory of Modern Metallurgy & Materials Processing, Shanghai University, Shanghai 200072, China |
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| Abstract: | Pulse magneto-oscillation (PMO) was developed as a novel technique to refine the solidification structure of pure aluminium.Its grain refining mechanism was proposed.The PMO refinement mechanism is that the nucleus falls off from the mould wall and drifts into the melt under the action of PMO.The solidification structure of Al melt depends on the linear electric current density,and also the discharge and oscillation frequencies.The radial pressure of PMO sound wave is the major factor that contributes to th... |
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| Keywords: | pulse magneto-oscillation grain refining solidification aluminium |
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