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| In-Situ Analyzing the Influence of Thermoelectromagnetic Convection on the Nucleation Ahead of the Advancing Interface During Directional Solidification | |
| 作者姓名： | WANG Jiang FAUTRELLE Yves REN Zhong-ming LI Xi NGUYEN-THI Henri MANGELINCK-NOEL Nathalie SALLOUM ABOU JAOUDE Georges ZHONG Yun-bo KALDRE Imants BOJAREVICS Andris BULIGINS Leonid |
| 作者单位： | SIMAP/EPM-Madylam,BP 75 ENSEEG,38402 St-Martin d’Heres,France;Department of Material Science and Engineering,Shanghai University;Aix Marseille University,Campus Saint-Jerome,Case 142,13397 Marseille Cedex 20,France;CNRS,IM2NP,Campus Saint-Jerome,Case 142,13397 Marseille Cedex 20, France;University of Latvia/IPUL,Salaspils,Latvia |
| 基金项目： | Item Sponsored by the CNRS/ANR OPTIMAG project,the Natural Science Foundation of China (No.50911130365) ;the National 973 Project (No.2011CB610404) |
| 摘 要： | Sn-3wt%Pb alloy was directionally solidified without and with a 0.08T transverse magnetic field(TMF),and real-time recorded by in-situ synchrotron X-ray imaging.Results indicate that TMF shortened the distance from the location of nucleation to the advancing interface,and accelerated the growth rate of the equiaxed crystal,which caused the columnar-to-equiaxed transition(CET)finally.The thermoelectromagnetic convection(TEMC)in front of the interface and around the crystal’s dendritic branch should respond to changes of the distance and the growth rate. |
| 关 键 词： | thermoelectromagnetic convection columnar-to-equiaxed transition synchrotron x-ray directional solidification |
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