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Application of Gas−Enhanced Ultrahigh Shear Mixing for refining microstructure of Al7Si1Cu0.5Mg alloy with 0.47 wt.% Zr, 0.21 wt.% Ti, 0.30 wt.% V: (a) mixing device; (b) microstructure after different treatments in liquid state with resultant grain size shown on histograms [129].
