what is best way to producing of wire rod 10 mm or less of superalloys such as Alloy 718 (Inconel 718) to reach optimum mechanical properties? casting in VIM (Vacuum induction melting) is probably first step, is it essential remelting (ESR or VAR) for wire production? what is aspect necessary for mold dimension (diameter) in casting and remelting to produce wire rod of 10 mm?