Research of Biroller Casting and Rolling AZ91D Semi-solid Magnesium Alloy Strip
Experimental study on the twin roll semi-solid strip casting and rolling of AZ91D magnesium alloy was carried out using twin roll caster.Semi-solid slurry preparation has been analyzed,and the optimal operating parameters,such as the melting temperature and the casting speed were examined.With mechanical milling at about 590 ℃,it was casting and rolling at 550～(585 ℃).The result shows that the technology of semi-solid strip casting and rolling can improve plastic processing property and refine grain.In addition,the maximal reduction arrived 46% when the magnesium alloy has been hot rolled at 380 ℃.