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Impact of growth velocity on grain structure formation during directional solidification of a refined Al-20wt.%Cu alloy

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Academic year: 2021

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Figure

Fig. 1: (a) Sketch of the SFINX furnace and X-radiography system for horizontal solidification experiments
Table 1. Cooling rates and corresponding average nucleation front velocities <V N > and average eutectic front velocities <V E > of the directional solidification experiments carried out on a refined Al-20wt.%Cu sample
Fig. 2: (a) Radiograph of an isolated grain; (b) the diameter d of the equivalent disk of the manually contoured grain; (c) the main axis of length L 1 and second axis of length L 2 of the grain; (d) the tilt angle θ of the grain main axis with r
Fig. 3: Sequence of radiographs showing the solidification front propagation of a refined Al- Al-20wt.% Cu solidified with R = 0.3 K/s (<V N > = 32.2 µm/s) and G app = 11.1 K/mm
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