Control of dendrite growth by a magnetic field during directional solidification
1 State Key Laboratory of Advanced Special Steels, Shanghai University - Shanghai, 200072, PRC
2 IMAP-EPM-Madylam/G-INP/CNRS, PHELMA - BP 75, 38402 St Martin d'Heres Cedex, France
Received: 26 December 2015
Accepted: 13 April 2016
In this work, the alignment behavior of three kinds of dendrites (Al3Ni, α-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.
PACS: 81.10.Aj – Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation / 75.30.Gw – Magnetic anisotropy / 47.65.Cb – Magnetic fluids and ferrofluids
© EPLA, 2016