Transactions of Materials and Heat Treatment

Title：Experimental study on vertial twin-roll casting for preparing AZ31 magnesium alloy strip

Authors： WANG Guang-shan DI Hong-shuang HUANG Feng(State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110004 China)

Unit：

KeyWords： magnesium alloy twin roll casting equiaxed grain

ClassificationCode：TG339

year,vol(issue):pagenumber：2009,34(4):52-55

Abstract：

Using the characteristic of flash set and dunamic compaction in the twin roll strip casting,the magnesium alloy thin strip of near net shape was prepared.The forming technology and annealing technology of the vertical twin-roll casting technology for AZ31 mgnesium alloy were studied,and the different processes on microstructure evolution were analysed.The results show that the problem of formation in ingot is solved by twin-roll casting.Therefore,the technology can refine grain size and improve the workability of the magnesium alloy.The average equiaxed grain in diameter of 9~10 μm was obtained after annealing at 400 ℃for 60 min.

Funds：

国家重点基础研究发展计划项目(2006CB605208-1);; 教育部高等学校博士学科点专项科研基金资助项目(20050145021)

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