Regensburg 2025 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 23: Phase Transformations
MM 23.1: Talk
Wednesday, March 19, 2025, 17:15–17:30, H23
study on solid/liquid interfacial energy of Al-Cu alloys and its anisotropy under a static magnetic fields — •Chenglin Huang1, Peter Galenko2, Rainer Backofen3, Ken Elder4, Sansan Shuai1, Jiang Wang1, and Zhongming Ren1 — 1State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, 200444, P. R. C — 2Department of Physics and Astronomy, Friedrich Schiller University of Jena, 07743, Germany — 3Institute of Scientific Computing, Technische Universität Dresden, 01062 , Germany — 4Department of Physics, Oakland University, Rochester, MI, 48309-4487, USA
In recent decades, external magnetic fields have been widely used in materials processing to control microstructure and optimize properties. Key phenomena include magnetic levitation, crystallographic orientation changes, magnetically induced phase transitions, and TEMHD. External magnetic fields also impact thermophysical properties such as phase transition temperatures, resistivity, viscosity, diffusion, and surface tension. These effects are closely linked to interface changes, where properties differ from the bulk. Despite their importance, quantitative studies on solid/liquid interfaces under magnetic fields remain limited. Accurately measuring interfacial energy and anisotropy, and exploring atomic-scale behavior under magnetic fields, are key challenges. This research systematically investigates the effects of external magnetic fields on interfacial energy and its anisotropy in Al-Cu alloys, offering theoretical and practical insights for controlling solidification under such fields.
Keywords: External magnetic fields; Solidification; Solid/liquid interfacial energies; Magnetic-coupled phase field crystal model; Superconducting magnet