The effect of natural and forced melt convection on dendritic solidification in Ga–In alloys

Effect of traveling magnetic field on solute distribution and dendritic growth in unidirectionally solidifying Sn–50 wt%Pb alloy: An in situ observation

“…The TMF was applied after t = 247 s when the dendrite front had occupied about one third of the field of view, t = 0 s is assigned to the onset of cooling. [26,27] in the solidification of Ga-In alloys. Moreover, the growth of dendrites are also affected by several small crystals ahead of the solidification front, see for instance the grains 1, 2 and 3 in Fig.…”

“…The induced movement of interdendritic liquid between the primary and secondary dendrite arms was suggested to be the mechanism for the increased fragmentation rate. Shevchenko et al [26] studied the effect of natural and electromagnetically driven forced convection on dendritic solidification in Ga-25wt.%In alloy. The flow induced variation of the local solute concentration results in an unsteady development of the primary dendrites and promotes or inhibits the development of secondary and tertiary arms.…”

Free dendritic tip growth velocities measured in Al-Ge

“…In binary alloys the tip growth is mainly governed by the distribution of the solutal diffusion field around the tip. Sedimentation of the dense solute as a result of a vertical sample orientation can considerably influence the tip kinetics [38].…”

A 2D1/2 model for natural convection and solidification in a narrow enclosure

“…Reference experimental investigations of convective effects in solidification are very often made in very slender configurations. This is the case, in particular, for in situ X-ray imaging of solidification [1][2][3][4], which requires very thin samples. This is also the case of the directional solidification benchmark AFRODITE on which the present paper focuses.…”