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RESEARCH PRODUCT

Influence on the macrosegregation of binary metallic alloys by thermoelectromagnetic convection and electromagnetic stirring combination

Jacqueline EtayL. BuliginsYves FautrelleImants KaldreAndris Bojarevics

subject

ConvectionWork (thermodynamics)Materials scienceMetallurgyAlloy0211 other engineering and technologiesBinary number02 engineering and technologyMechanics[CHIM.MATE]Chemical Sciences/Material chemistryengineering.material021001 nanoscience & nanotechnologyCondensed Matter PhysicsInorganic ChemistryMetallic alloyPhysics::Fluid DynamicsElectromagnetic stirringMaterial structureMaterials Chemistryengineering0210 nano-technology021102 mining & metallurgyMelt flow index

description

International audience; Influence of a slowly rotating 0.5 T transverse magnetic field on the directionally solidified metallic alloy has been experimentally studied in this work. Main idea is to study an influence on the melt flow and material structure caused by the simultaneous electromagnetic stirring and thermoelectromagnetic convection with comparable magnitudes. Electromagnetic stirring and thermoelectromagnetic convection intensities have been estimated analytically to find optimal experimental parameters. It is experimentally demonstrated that with such an interaction it is possible to modify component macrosegregation of Sn-10 wt% Pb alloy. Helical macrosegregation within cylindrical sample is obtained as a result of simultaneous influence of thermoelectromagnetic convection (TEMC) and electromagnetic stirring of the liquid melt. Obtained experimental results allow to determine TEMC velocity by comparing the intensities of TEMC and electromagnetic stirring. (C) 2014 Elsevier B.V. All rights reserved.

10.1010/j.jcrysgro.2014.00.029https://hal.archives-ouvertes.fr/hal-01071869