Fisher: Fundamentals of Solidification, 3 rd ed., Trans Tech Publications, Bach, 1992. However, they rarely show tensile ductility at room temperature and are considered quasi-brittle materials1,2. This work provides a new path to obtain a diffusive condition for crystal growth.Ī. Metallic glasses have a very high strength, hardness and elastic limit. These were attributed to the decrease of constitutional supercooling caused by the magnetohydrodynamic effect. Interface shape distribution maps showed that the HMF increased the proportion of ellipsoid shapes and decreased the proportion of hyperbolic shapes of solid–liquid interface. A transition of dendritic arms from seaweed to dendrite was observed after applying an HMF. The HMF increased the size of crystal, but it decreased the crystal number and the curvature of dendrite tips as well as the specific surface area of dendrite. Modelling Columnar Dendritic Growth into an Undercooled Metallic Melt in the. The influence of HMF on crystal growth was investigated by X-ray computed tomography. It is also one of the most common forms of so- lidifying composites, metals and alloys, such as in electrolytically refined metal crystals and mineral stones. A diffusive growth state was achieved in the melt when the MFD was greater than a critical 2.9 T. can be explained by a single process of dendritic crystal- lization and ripening within the melt (a dendrite being a branching crystal made of several units. The atomic interdiffusion coefficient in the Al–Cu melt was measured in the HMF to define the critical magnetic flux density (MFD) for the diffusive crystal growth in the melt.

By applying a high-magnetic field (HMF), we achieved a diffusive condition for the crystal growth.

(D) gives no hint of its dendritic origin since all atoms are identical. In most cubic metals, the preferential growth directions are <100>, which results in crystal growth parallel and opposite to the heat flow.

Suppressing the melt convection in the solidifying ingot is still considered to be a challenging task. The strategies to achieve dendrite-free Li deposition by controlling the preferred crystal planes of Cu current collectors have been successfully demonstrated in recent years 155, 156, 157. The dendritic growth of metallic crystals from the liquid state.

Metallic dendrite crystal