Motion of Solid Grains During Magnetic Field-Assisted Directional Solidification

Journal Article · Fri Jun 15 00:00:00 EDT 2018 · Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science

DOI:https://doi.org/10.1007/S11663-018-1199-6· OSTI ID:22857971

Wang, Jiang ^[1]; Lin, Xin ^[2]; Fautrelle, Yves ^[3]; Nguyen-Thi, Henri ^[4]; Ren, Zhongming ^[1]

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1. Shanghai University, State Key Laboratory of Advanced Special Steel (China)
2. Northwestern Polytechnical University, State Key Laboratory of Solidification Processing (China)
3. SIMAP/EPM (France)
4. Aix Marseille University (France)

In this paper, we report the visible evidence for thermoelectric magnetic forces (TEMFs) during magnetic field-assisted directional solidification, and their potential to control the motion of solid grains(dendrite fragments or equiaxed grains). These motions are observed by means of synchrotron X-ray radiography and compared with analytic calculations for a spherical particle’s motion driven only by TEMFs, which confirms that the observed solid grain motions are the combined result of the TEMFs and gravity. We also carried out corresponding 3D numerical simulations to validate the calculations and further prove our conclusion that TEMF acts on the solid grain and affects its motion trajectory.

• OSTI ID: 22857971
• Journal Information: Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science, Vol. 49, Issue 3; Other Information: Copyright (c) 2018 The Minerals, Metals & Materials Society and ASM International; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 1073-5615
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANALYTICAL SOLUTION
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
MAGNETIC FIELDS
SOLIDIFICATION
SPHERICAL CONFIGURATION
TRAJECTORIES
X-RAY RADIOGRAPHY