Kasperovich, Galina and Genau, Amber and Ratke, Lorenz (2011) Mushy Zone Coarsening in an AlCu30 Alloy Accelerated by a Rotating Magnetic Field. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 42 A, pp. 1657-1666. DOI: 10.1007/s11661-010-0542-6. ISSN 0360-2133.
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Official URL: http://www.springerlink.com/content/gq14v872px0861l3/
Annealing experiments were performed on a near-eutectic Al-30 wt pct Cu alloy held in temperature gradients from 0.1 to 3 K/mm for annealing times of 10 to 500 minutes, with and without the application of rotating magnetic fields. After annealing, metallographic analysis was carried out on sections of the samples with a constant fraction solid of 10 pct. X-ray tomography was also used to create three-dimensional (3-D) reconstructions of the microstructures with a spatial resolution of approximately 1 lm. The specific surface area was measured in two dimensions and three dimensions, as well as the local curvature distribution on the 3-D reconstructed images. The microstructures show clearly that fluid flow accelerates coarsening of the mush and that the temperature gradient has a pronounced and unexpected influence on the coarsening kinetics.
|Title:||Mushy Zone Coarsening in an AlCu30 Alloy Accelerated by a Rotating Magnetic Field|
|Journal or Publication Title:||Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science|
|In ISI Web of Science:||No|
|Page Range:||pp. 1657-1666|
|Keywords:||mushy zone, coarsening, fluid flow|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W FR - Forschung unter Weltraumbedingungen (old)|
|DLR - Research area:||Space|
|DLR - Program:||W FR - Forschung unter Weltraumbedingungen|
|DLR - Research theme (Project):||W - Vorhaben Materialwissenschaftliche Forschung (old)|
|Institutes and Institutions:||Institute of Materials Physics in Space|
|Deposited By:||Prof. Lorenz Ratke|
|Deposited On:||09 May 2011 09:00|
|Last Modified:||07 Feb 2013 19:44|
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