Measurements of the bulk velocity during solidification of metallic alloys
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This work was supported by the National Science Foundation of China under Grant No. 50301011.
Measurements of the Bulk Velocity during Solidification of Metallic Alloys S. ECKERT, B. WILLERS, and G. GERBETH The ultrasound Doppler velocimetry (UDV) was applied to measure the bulk flow in a Sn-15 wt pct Pb alloy solidified directionally from a water-cooled copper chill. The flow is driven by a rotating magnetic field (RMF). Our results show that the velocity profiles undergo distinct modifications during solidification indicating the occurrence of more sophisticated flow patterns as known from the isothermal case. Furthermore, the UDV data allow an assessment of the current position of the dendritic solidification front.
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