Effect of DC and AC Magnetic Fields on the Solidification Structure of Commercially Pure Aluminium

Chun Yan Ban; Dan Dan Jiang; Lian Liu; Jian Zhong Cui

doi:10.4028/www.scientific.net/AMR.583.387

Paper Titles

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Fabrication of Super-Hydrophobic Film on Tinplate’s Surface by a Simple Casting Method in Material Engineering and its Application
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Study on Energy Splitting of γ-LiAlO₂:Fe³⁺ Ceramic as a Functional Inorganic Material Sintered by Microwave Based on Material Applications
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Nano-Iron Hydroxides/Oxides Modified Slag on the Treatment of Simulated Methyl Orange Wastewater
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Effect of DC and AC Magnetic Fields on the Solidification Structure of Commercially Pure Aluminium
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Synthesis and Characterization of β-Cyclodextrin Microspheres with Temperature and pH Sensibility
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Research on the Strength of Green Hydroxyapatite Coating Obtained by Electrophoretic Deposition
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The Prediction of Mechanical Properties of Graphene by Molecular Mechanics and Structural Mechanics Method
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 583Effect of DC and AC Magnetic Fields on the...

Effect of DC and AC Magnetic Fields on the Solidification Structure of Commercially Pure Aluminium

Abstract:

The effect of DC and AC magnetic fields on the macrostructure, morphology and distribution of the iron-containing intermetallics in the commercially pure Al was investigated. It is found that, at a cooling rate of 3°C/min, the grain is very coarse when the alloy solidifies both with and without magnetic fields. Comparing with the sample solidifies without magnetic field, the solidification structure has almost no change when it solidifies under DC magnetic field, while AC magnetic field changes the solidification structure obviously and makes grains show radial columnar crystals. The intermetallics is dominated by long needle-like phase when the sample solidifies under the condition of no magnetic field. Under AC magnetic field, the intermetallics is refined and accumulated towards the center of sample, and the amount of bone-like α-AlFeSi phase is increased remarkably. The mechanism of the effect of magnetic fields was discussed.