Effect of high shear rate on solidification microstructure of semisolid AZ91D alloy

• Published in: Transactions of Nonferrous Metals Society of China Vol. 20; pp. s868 - s872
• Main Authors: ZHU, Guang-lei, XU, Jun, ZHANG, Zhi-feng, LIU, Guo-jun, Fan, Z.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2010
• Subjects: AZ91D; China; high shear rate; Magnesium base alloys; Microstructure; Morphology; Nucleation; rotation speed; semisolid; Semisolids; Shear rate; Shearing; solidification; Turbulent flow; rotation speed; semisolid; solidification; AZ91D; high shear rate

To investigate the effects of rotation speed and shearing time on morphology of semisolid AZ91D alloy, experimental work was undertaken using a twin-screw slurry maker. The results show that increasing the rotation speed and reasonable time can give rise to substantial grain refinement during contin...