Control of dendrite growth by a magnetic field during directional solidification

Yanchao Dai (1) , Dafan Du (1) , Long Hou (1) , Annie Gagnoud (2) , Zhongming Ren (1) , Yves Fautrelle (2) , Rene Moreau (2) , Xi Li (1)

1 State Key Laboratory of Advanced Special Steel
2 SIMaP - Science et Ingénierie des Matériaux et Procédés

In this work, the alignment behavior of three kinds of dendrites (Al3Ni, alpha-Al and Al2Cu dendrites) with a remarkable crystalline anisotropy during directional solidification under an axial magnetic field is studied by the EBSD technology. Experimental results reveal that the magnetic field is capable of tailoring the dendrite alignment during directional solidification. Further, based on the crystalline anisotropy, a method to control the dendrite alignment by adjusting the angle between the magnetic field and the solidification direction is proposed. Copyright (C) EPLA, 2016

Domaines: Matériaux

Yanchao Dai, Dafan Du, Long Hou, Annie Gagnoud, Zhongming Ren, et al.. Control of dendrite growth by a magnetic field during directional solidification. EPL - Europhysics Letters, 2016, 114 (1), pp.5. ⟨10.1209/0295-5075/114/18001⟩. ⟨hal-01367289⟩