Abstract
Pulse magneto-oscillation (PMO) is developed as a novel technique to refine the solidification structure of pure aluminum, and its grain refinement mechanism is proposed based on the experiment. Experimental results indicate that PMO is an effective technique for the grain refinement of pure Al which is achieved mainly due to the nucleus increase in the solidifying melt. When PMO is applied during the solidification process, the nucleus falls off the mould wall and drifts in the melt. Due to its distinctive refinement effect, flexibility, and environment-friendly features, PMO has potential application in controlling the solidification process of metals.
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