Continuous casting of AZ31B magnesium alloy sheet from semisolid slurry

Experiments for casting AZ31B magnesium alloy sheets were performed in a semisolid continuous casting process. The semisolid slurry was produced using an inclined cooling plate, and the sheet was continuously cast by a twin roll caster. The casting sheet width was influenced by the roll speed, amount of semisolid slurry fed into the twin rollers, and the nozzle angle of inclination to the lower roll. The widest sheet was obtained at a 21.5 m/min rolling speed , a −5 degree nozzle inclination angle, and 10.2×10−3 m3/min of slurry. The sheet surface was smooth, and granular grains appeared throughout the sheet.