Convection and solidification influenced by thermo-electric effect

4th International Conference on Advances in Solidification Processes

材料科学;物理学

Wang, J.^1,2 ; Abou-Jaoude, G.S.^3,4 ; Budenkova, O.^1 ; Reinhart, G.^3,4 ; Mangelinck, N.^3,4 ; Li, X.^1 ; Nguyen-Thi, H.^3,4 ; Ren, Z.-M.^2 ; Fautrelle, Y.^1

SIMAP, EPM, Grenoble Institute of Technology, CNRS, BP 75, Saint Martin d'Heres

38402, France^1

Shanghai University, 149 YanChang Road, Shanghai

200072, China^2

Aix-Marseille Universit, France^3

CNRS, IM2NP, UMR 7334, Campus Saint-Jérôme, Case 142, Marseille Cedex 20

13397, France^4

关键词: Cu alloy;    Electric magnetic;    Equi-axed grains;    Permanent magnetic fields;    Real time visualization;    Solid particles;    Synchrotron x-ray radiography;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/117/1/012051/pdf
DOI  :  10.1088/1757-899X/117/1/012051

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

We analyse the thermo-electric-magnetic (TEM) forces both on the liquid metal and immersed solid particles which mimics equiaxed grains. Firstly, we provide a summary of analytical works performed in a previous paper. Then, we present experimental works on in situ and real time visualization of the directional solidification of Al-10wt%Cu alloy by means of synchrotron X-ray radiography during directional solidification under a transverse 0.08 T permanent magnetic field. The experiments bring definite evidence of the existence of various phenomena which could be related to the thermoelectric effect acting directly on equiaxed grains. Comparisons between the predicted and observed horizontal deviations of the particles are in fairly good agreement.