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| 1 | Effect of the simultaneous application of a high static magnetic field and a low alternating current on grain structure and grain boundary of pure aluminum显示文摘Effect of the simultaneous application of a high static magnetic field and a low alternating electric current on the solidification structure of pure aluminum has been investigated. Results show that the refinement of the solidification structure is enhanced by the electric current under a certain magnetic field. However,when the magnetic field intensity exceeds a certain value, the refinement is impaired under a certain electric current. The observation by electron backscattered diffraction(EBSD) shows the complex fields have led to the increase of the low angle boundaries with the refinement. Moreover, the application of the static gradient magnetic field is capable of modifying the distribution of the refined grains. The above results may be attributed to the formation of the cavities during the electromagnetic vibration process and the high magnetic field. | Chengshuai Li Shaodong Hu Zhongming Ren Yves Fautrelle Xi Li | 2018 | Journal of Materials Science & Technology2018，34，12： | 7 |
| 2 | Effect of transverse static magnetic field on radial microstructure of hypereutectic aluminum alloy during directional solidification显示文摘The effect of different scales thermoelectric magnetic convection(TEMC)on the radial solidification microstructure of hypereutectic Al alloy has been investigated under transverse static magnetic field during directional solidification,focusing on the formation of freckle.Our experimental and numerical simulation results indicate that the TEMC circulation at sample scale under transverse static magnetic field leads to the enrichment of solute Al on one side of the sample.The TEMC and the solute enrichment degree increase with the increase of magnetic field when the magnetic field increases to 0.5 T.The enrichment degree of solute elements under magnetic field is affected by temperature gradient and growth rate.The non-uniform distribution of solute Al in the radial direction of the sample results in the non-uniform distribution of primary dendrite arm spacing(PDAS).Moreover,the applied magnetic field can lead to freckle formation and its number increases with the increase of magnetic field.The change of freckle is consistent with the anisotropy TEMC caused by the anisotropy of primary dendrite or primary dendrite network under magnetic field.Finally,the mechanism of synergism effect of the anisotropy TEMC,the distribution of solute Al and the PDAS on freckle formation and evolution is studied during directional solidification under magnetic field. | Shaodong Hu Long Hou Kang Wang Zhongmiao Liao Wen Zhu Aihua Yi Wenfang Li Yves Fautrelle Xi Li | 2021 | Journal of Materials Science & Technology2021，，17： | 4 |
| 3 | Influence of a high magnetic field on columnar dendrite growth during directional solidification显示文摘 | Xi Li Yves Fautrelle Zhongming Ren | 2007 | Acta Materialia2007，，16： | 4 |
| 4 | Effect of a high axial magnetic field on the microstructure in a directionally solidified Al–Al 2 Cu eutectic alloy显示文摘 | Xi Li Zhongming Ren Yves Fautrelle | 2006 | Acta Materialia2006，，20： | 3 |
| 5 | Controlling and adjusting the concentration distribution during solidification process using static magnetic fields显示文摘As concentration distribution changes have important effects on material structures and properties,controlling the concentration distribution is essential to alloy performance.The aim of the present work is to control and adjust the concentration distribution by the static magnetic field.It is found that the magnetic field disperses grain boundary segregation and causes the uniform distribution of concentration.Further,by the three-dimensional computed tomography(3 D-CT) reconstruction,the flow distribution is seen and the effect mechanism of the magnetic field is revealed.The present work may clarify the ambiguous understanding on the effect of the static magnetic field on solidification process. | Pinfang Jiang Jiantao Wang Long Hou Yves Fautrelle Xi Li | 2020 | Journal of Materials Science & Technology2020，47，15： | 3 |
| 6 | Investigation of thermoelectric magnetic convection and its effect on solidification structure during directional solidification under a low axial magnetic field显示文摘 | Xi Li Annie Gagnoud Zhongming Ren Yves Fautrelle Rene Moreau | 2009 | Acta Materialia2009，，7： | 3 |
| 7 | Influence of thermoelectric effects on the solid–liquid interface shape and cellular morphology in the mushy zone during the directional solidification of Al–Cu alloys under a magnetic field显示文摘 | Xi Li Yves Fautrelle Zhongming Ren | 2007 | Acta Materialia2007，，11： | 3 |
| 8 | Experimental evidence for liquid/solid interface instability caused by the stress in the solid during directional solidification under a strong magnetic field显示文摘 | Xi Li Yudong Zhang Yves Fautrelle Zhongming Ren Claude Esling | 2008 | Scripta Materialia2008，，7： | 2 |
| 9 | Morphological instability of cell and dendrite during directional solidification under a high magnetic field显示文摘 | Xi Li Yves Fautrelle Zhongming Ren | 2008 | Acta Materialia2008，，13： | 2 |
| 10 | Influence of an axial high magnetic field on the liquid–solid transformation in Al–Cu hypoeutectic alloys and on the microstructure of the solid显示文摘 | Xi Li Yves Fautrelle Zhongming Ren | 2006 | Acta Materialia2006，，4： | 2 |
| 11 | Parametric instability of a liquid metal sessile drop under the action of low-frequency alternating magnetic fields显示文摘A 2-D mathematical model is developed in order to simulate a parametric electromagnetic instability oscillation process of a liquid metal droplet under the action of low frequency magnetic field. The Arbitrary Lagrangian-Eulerian (ALE) method and weak form constraint boundary condition are introduced in this model for implementation of the surface tension and electromagnetic force on liquid droplet free surface. The results of the numerical calculations indicate the appearance of various regimes of oscillation. It is found that according to the magnetic field frequency various types of oscillation modes may be found. The oscillation is originated from an instability phenomenon. The stability diagram of liquid metal droplet in the parameter space of magnetic frequency and magnetic flux density is determined numerically. The diagram is very similar to that found in the so-called parametric instability. | 雷作胜 郭加宏 FAUTRELLE Yves ERNST Roland ETAY Jacqueline 任忠鸣 | 2013 | Journal of Hydrodynamics2013，25，2： | 2 |
| 12 | Columnar-to-equiaxed transitions in al-based alloys during directional solidification under a high magnetic field显示文摘 | Xi Li Yves Fautrelle Kader Zaidat Annie Gagnoud Zhongming Ren Rene Moreau Yudong Zhang Claude Esling | 2009 | Journal of Crystal Growth2009，，2： | 2 |
| 13 | Nucleation kinetics of paramagnetic and diamagnetic metal melts under a high magnetic field显示文摘The influence of a high magnetic field(HMF)on the nucleation kinetics of paramagnetic aluminum and diamagnetic zinc melts has been investigated by differential thermal analysis(DTA).It is found that the application of an HMF increases the undercooling of pure aluminum and pure zinc at the same heatingcooling rates.Moreover,the quantitative analysis of activation energy calculated from the DTA results using the Kissinger method manifests that the HMF reduces the activation energy of pure aluminum and pure zinc.Regardless of magnetism,the nucleation frequency under an HMF is higher than that without an HMF.Furthermore,the increase in undercooling under the HMF is mainly attributed to the increase of the contact angle,calculated by the functional relationship between the cooling rate and undercooling.This result is consistent with the increase of the calculated nucleation work for pure aluminum and pure zinc.Additionally,the increase in undercooling caused by the HMF is partly ascribed to the magnetic field-induced suppression of thermal convection in the undercooled melt. | Zhipeng Long Qiuyue Jiang Jiantao Wang Long Hou Xing Yu Yves Fautrelle Zhongming Ren Xi Li | 2021 | Journal of Materials Science & Technology2021，，14： | 2 |
| 14 | A Periodically Reversed Flow Driven by a Modulated Traveling Magnetic Field: Part I. Experiments with GaInSn显示文摘 | Xiaodong Wang Yves Fautrelle Jacqueline Etay Rene Moreau | 2009 | Metallurgical and Materials Transactions B2009，，1： | 2 |
| 15 | Dendrite fragmentation and columnar-to-equiaxed transition during directional solidification at lower growth speed under a strong magnetic field显示文摘 | Xi Li Annie Gagnoud Yves Fautrelle Zhongming Ren Rene Moreau Yudong Zhang Claude Esling | 2012 | Acta Materialia2012，，8： | 2 |
| 16 | Effect of a high magnetic field on the morphological instability and irregularity of the interface of a binary alloy during directional solidification显示文摘 | Xi Li Yves Fautrelle Zhongming Ren Annie Gagnoud Rene Moreau Yudong Zhang Claude Esling | 2009 | Acta Materialia2009，，5： | 1 |
| 17 | Effect of high magnetic fields on the microstructure in directionally solidified Bi–Mn eutectic alloy显示文摘 | Xi Li Zhongming Ren Yves Fautrelle | 2006 | Journal of Crystal Growth2006，，1： | 1 |
| 18 | Experimental analysis of the solidification of Sn–3 wt.%Pb alloy under natural convection显示文摘 | Lakhdar Hachani Bachir Saadi Xiao Dong Wang Abdallah Nouri Kader Zaidat Aissa Belgacem-Bouzida Linda Ayouni-Derouiche Ga?tan Raimondi Yves Fautrelle | 2011 | International Journal of Heat and Mass Transfer (-)2011，，7： | 1 |
| 19 | An investigation of the influence of natural convection on tin solidification using a quasi two-dimensional experimental benchmark显示文摘 | Xiaodong Wang Yves Fautrelle | 2009 | International Journal of Heat and Mass Transfer2009，，23： | 1 |
| 20 | Degeneration of columnar dendrites during directional solidification under a high magnetic field显示文摘 | Xi Li Zhongming Ren Yves Fautrelle Annie Gagnoud Yudong Zhang Claude Esling | 2008 | Scripta Materialia2008，，6： | 1 |
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