The Experts below are selected from a list of 14493 Experts worldwide ranked by ideXlab platform
Y Fautrelle - One of the best experts on this subject based on the ideXlab platform.
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Influence of a transverse magnetic field on Solidification Structure during directional Solidification
2015Co-Authors: Y Fautrelle, J Wang, A Gagnoud, Z. M. Ren, Nguyen ThiAbstract:Three alloys were directionally solidified at low growth speeds under a transverse magnetic field. The results show that the application of the transverse magnetic field significantly modified the Solidification Structure. Indeed, we found that along with the refinement of cells/dendrites, the magnetic field caused the deformation of liquid-solid interfaces, extensive segregations (i.e., freckles and channels) in the mushy zone. Moreover, we observed that dendrite fragments and equiaxed grains were moved approximately along the direction perpendicular to the magnetic field. Modification of the Solidification Structure under a weak magnetic field is attributed to a TEMC-driven heat transfer and interdendritic solute transport and a TEMF-driven motion of dendrite fragments.
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Effect of a transverse magnetic field on Solidification Structure in directionally solidified Al-Cu-Ag ternary alloys
EPL - Europhysics Letters, 2015Co-Authors: Guang Guan, Y Fautrelle, Rene Moreau, Zhongming RenAbstract:The effect of a transverse magnetic field on Solidification Structure in directionally solidified Al-Cu-Ag ternary alloys was investigated experimentally. The results show that the application of the transverse magnetic field significantly modified the Solidification Structures. Indeed, the magnetic field caused the formation of macrosegregation and the transformation of the liquid/solid interface from cellular to planar. Moreover, it was found that the magnetic field refined the eutectic cell and decreased the mushy zone length. This may be attributed to the thermoelectric magnetic convection between eutectic cells.
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effect of a weak transverse magnetic field on Solidification Structure during directional Solidification
Acta Materialia, 2014Co-Authors: Y Fautrelle, J Wang, A Gagnoud, Xi Li, Dafan Du, Henri Nguyenthi, Nathalie MangelincknoelAbstract:Abstract Six alloys were directionally solidified at low growth speeds (1–5 μm s −1 ) under a weak transverse magnetic field (⩽0.5 T). The results show that the application of a weak transverse magnetic field significantly modified the Solidification Structure. Indeed, it was found that, along with the refinement of cells/dendrites, the magnetic field caused the deformation of liquid–solid interfaces, extensive segregations (i.e., freckles and channels) in the mushy zone, and a change in the mushy zone length. Further, in situ monitoring of the initial transient of the directional Solidification was carried out by means of synchrotron X-ray radiography. It was observed that dendrite fragments and equiaxed grains were moved approximately along the direction perpendicular to the magnetic field. This result shows that a thermoelectric magnetic force (TEMF) acted on the liquid or the solid during directional Solidification under a weak magnetic field. The TEMF during directional Solidification under a transverse magnetic field was investigated numerically. The results reveal that a unidirectional TEMF acted on the solid and induced thermoelectric magnetic convection (TEMC) in the liquid. Modification of the Solidification Structure under a weak magnetic field is attributed to TEMC-driven heat transfer and interdendritic solute transport and TEMF-driven motion of dendrite fragments.
Xi Li - One of the best experts on this subject based on the ideXlab platform.
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effect of a weak transverse magnetic field on Solidification Structure during directional Solidification
Acta Materialia, 2014Co-Authors: Y Fautrelle, J Wang, A Gagnoud, Xi Li, Dafan Du, Henri Nguyenthi, Nathalie MangelincknoelAbstract:Abstract Six alloys were directionally solidified at low growth speeds (1–5 μm s −1 ) under a weak transverse magnetic field (⩽0.5 T). The results show that the application of a weak transverse magnetic field significantly modified the Solidification Structure. Indeed, it was found that, along with the refinement of cells/dendrites, the magnetic field caused the deformation of liquid–solid interfaces, extensive segregations (i.e., freckles and channels) in the mushy zone, and a change in the mushy zone length. Further, in situ monitoring of the initial transient of the directional Solidification was carried out by means of synchrotron X-ray radiography. It was observed that dendrite fragments and equiaxed grains were moved approximately along the direction perpendicular to the magnetic field. This result shows that a thermoelectric magnetic force (TEMF) acted on the liquid or the solid during directional Solidification under a weak magnetic field. The TEMF during directional Solidification under a transverse magnetic field was investigated numerically. The results reveal that a unidirectional TEMF acted on the solid and induced thermoelectric magnetic convection (TEMC) in the liquid. Modification of the Solidification Structure under a weak magnetic field is attributed to TEMC-driven heat transfer and interdendritic solute transport and TEMF-driven motion of dendrite fragments.
J Wang - One of the best experts on this subject based on the ideXlab platform.
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Influence of a transverse magnetic field on Solidification Structure during directional Solidification
2015Co-Authors: Y Fautrelle, J Wang, A Gagnoud, Z. M. Ren, Nguyen ThiAbstract:Three alloys were directionally solidified at low growth speeds under a transverse magnetic field. The results show that the application of the transverse magnetic field significantly modified the Solidification Structure. Indeed, we found that along with the refinement of cells/dendrites, the magnetic field caused the deformation of liquid-solid interfaces, extensive segregations (i.e., freckles and channels) in the mushy zone. Moreover, we observed that dendrite fragments and equiaxed grains were moved approximately along the direction perpendicular to the magnetic field. Modification of the Solidification Structure under a weak magnetic field is attributed to a TEMC-driven heat transfer and interdendritic solute transport and a TEMF-driven motion of dendrite fragments.
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effect of a weak transverse magnetic field on Solidification Structure during directional Solidification
Acta Materialia, 2014Co-Authors: Y Fautrelle, J Wang, A Gagnoud, Xi Li, Dafan Du, Henri Nguyenthi, Nathalie MangelincknoelAbstract:Abstract Six alloys were directionally solidified at low growth speeds (1–5 μm s −1 ) under a weak transverse magnetic field (⩽0.5 T). The results show that the application of a weak transverse magnetic field significantly modified the Solidification Structure. Indeed, it was found that, along with the refinement of cells/dendrites, the magnetic field caused the deformation of liquid–solid interfaces, extensive segregations (i.e., freckles and channels) in the mushy zone, and a change in the mushy zone length. Further, in situ monitoring of the initial transient of the directional Solidification was carried out by means of synchrotron X-ray radiography. It was observed that dendrite fragments and equiaxed grains were moved approximately along the direction perpendicular to the magnetic field. This result shows that a thermoelectric magnetic force (TEMF) acted on the liquid or the solid during directional Solidification under a weak magnetic field. The TEMF during directional Solidification under a transverse magnetic field was investigated numerically. The results reveal that a unidirectional TEMF acted on the solid and induced thermoelectric magnetic convection (TEMC) in the liquid. Modification of the Solidification Structure under a weak magnetic field is attributed to TEMC-driven heat transfer and interdendritic solute transport and TEMF-driven motion of dendrite fragments.
Nathalie Mangelincknoel - One of the best experts on this subject based on the ideXlab platform.
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effect of a weak transverse magnetic field on Solidification Structure during directional Solidification
Acta Materialia, 2014Co-Authors: Y Fautrelle, J Wang, A Gagnoud, Xi Li, Dafan Du, Henri Nguyenthi, Nathalie MangelincknoelAbstract:Abstract Six alloys were directionally solidified at low growth speeds (1–5 μm s −1 ) under a weak transverse magnetic field (⩽0.5 T). The results show that the application of a weak transverse magnetic field significantly modified the Solidification Structure. Indeed, it was found that, along with the refinement of cells/dendrites, the magnetic field caused the deformation of liquid–solid interfaces, extensive segregations (i.e., freckles and channels) in the mushy zone, and a change in the mushy zone length. Further, in situ monitoring of the initial transient of the directional Solidification was carried out by means of synchrotron X-ray radiography. It was observed that dendrite fragments and equiaxed grains were moved approximately along the direction perpendicular to the magnetic field. This result shows that a thermoelectric magnetic force (TEMF) acted on the liquid or the solid during directional Solidification under a weak magnetic field. The TEMF during directional Solidification under a transverse magnetic field was investigated numerically. The results reveal that a unidirectional TEMF acted on the solid and induced thermoelectric magnetic convection (TEMC) in the liquid. Modification of the Solidification Structure under a weak magnetic field is attributed to TEMC-driven heat transfer and interdendritic solute transport and TEMF-driven motion of dendrite fragments.
Henri Nguyenthi - One of the best experts on this subject based on the ideXlab platform.
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effect of a weak transverse magnetic field on Solidification Structure during directional Solidification
Acta Materialia, 2014Co-Authors: Y Fautrelle, J Wang, A Gagnoud, Xi Li, Dafan Du, Henri Nguyenthi, Nathalie MangelincknoelAbstract:Abstract Six alloys were directionally solidified at low growth speeds (1–5 μm s −1 ) under a weak transverse magnetic field (⩽0.5 T). The results show that the application of a weak transverse magnetic field significantly modified the Solidification Structure. Indeed, it was found that, along with the refinement of cells/dendrites, the magnetic field caused the deformation of liquid–solid interfaces, extensive segregations (i.e., freckles and channels) in the mushy zone, and a change in the mushy zone length. Further, in situ monitoring of the initial transient of the directional Solidification was carried out by means of synchrotron X-ray radiography. It was observed that dendrite fragments and equiaxed grains were moved approximately along the direction perpendicular to the magnetic field. This result shows that a thermoelectric magnetic force (TEMF) acted on the liquid or the solid during directional Solidification under a weak magnetic field. The TEMF during directional Solidification under a transverse magnetic field was investigated numerically. The results reveal that a unidirectional TEMF acted on the solid and induced thermoelectric magnetic convection (TEMC) in the liquid. Modification of the Solidification Structure under a weak magnetic field is attributed to TEMC-driven heat transfer and interdendritic solute transport and TEMF-driven motion of dendrite fragments.