Journal of Northeastern University ›› 2007, Vol. 28 ›› Issue (11): 1586-1589.DOI: -

• OriginalPaper • Previous Articles     Next Articles

Continuous rheo-extrusion of AZ61 magnesium alloy

Guan, Ren-Guo (1); Wang, Chao (1); Xing, Zhen-Huan (1); Chen, Li-Qing (2)   

  1. (1) School of Materials and Metallurgical, Northeastern University, Shenyang 110004, China; (2) State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-11-15 Published:2013-06-24
  • Contact: Guan, R.-G.
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Abstract: A continuous rheo-extruding process was developed to prepare successfully the AZ61 alloy wire with diameter up to φ10 mm. Under the actions of kneading and shearing by roller and fixed shoe, the fine, spherical and equiaxed grains form from liquid alloy. In the extruding forming process, the deformation of solid phase in the central part is small, while the edgewise deformation is big, then the ultra-fine grain microstructure comes in the arc flowing part. Casting temperature can affect solid fraction and further exert a great influence on the forming process, and the appropriate casting temperature is 680°C. The cross-sectional microstructures of the AZ61 alloy wire prepared is favorable and shows the characteristic of two-phase plastic flow.

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