Paper Titles
Influence of Vacancy Formation and Mg Migration on Cracking in Spot Welding AA5754 Alloys
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Ageing Characteristics and Microstructural Evolution in Microalloyed Al Alloys
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Microstructural Aspects by Electron Microscopy Observed in Al-Mg Based Alloys after Special P/M Processes
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Microsegregation Effect of Copper in Solidification of A356 Alloy
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Control of the Alloying Element Distribution in Al-Alloys by High Magnetic Fields
p.457
The Influence of 0.1% Sc Addition on the Microstructure and Texture Development in Al-Zn-Mg-Cu-Zr Alloys
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Substructures and Fatigue Crack Growth in HIPing and Semi-Liquid Die Casting A356 Alloys
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Behavior Analysis of Environmental Hydrogen in High-Magnesium Al-Mg Alloys by Hydrogen Microprint Technique
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Effect of Mn Addition on the Mechanical Properties in Al-Cu-Li-Mg-Ag-Zr Alloys
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Control of the Alloying Element Distribution in Al-Alloys by High Magnetic Fields

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Abstract:

The distribution and solidified structure of alloying elements are important for the quality and the properties of alloys. In the present study, the solidification behavior of aluminum-rich alloys is studied under various high magnetic field conditions, and the influences of uniform and gradient magnetic fields with different intensity and direction on the distribution and the morphology of solute elements of Al-Cu and Al-Mg alloys are investigated. It is found that because of the differences of the electromagnetic force (Lorentz and magnetization forces) acting on Cu element and Mg element with different physical properties in the matrix, the regularities of distribution for Cu element and Mg element are opposite just in the intracrystalline and intergranular under high uniform magnetic field condition, and not only the content but the distributions of Cu and Mg elements are obviously different under high gradient magnetic field conditions as well. It can be concluded that high magnetic field has different effect on the solute distribution in alloys with different physical properties such as density, susceptibility, conductivity, etc. And the experimental results indicate that it is possible to control the terminal solubility and morphology of the solute elements in alloys by high magnetic fields.

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

457-462

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.457

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Online since:

March 2007

Authors:

Qiang Wang, Xue Jun Pang, Chun Jiang Wang, Tie Liu, Dong Gang Li, Ji Cheng He

Keywords:

Electromagnetic Processing of Materials (EPM), High Magnetic Field, Solid Solution, Solidification Process, Solidified Structures

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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