Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 23, Issue 4, Pages 904-908Publisher
ELSEVIER
DOI: 10.1016/S1003-6326(13)62546-7
Keywords
Mg-9Li alloys; Sn; microstructure; heterogeneous nucleation
Categories
Funding
- National Natural Science Foundation of China [51171212, 50725413]
- National High-tech Research Program of China [2009AA03Z507]
- Chongqing Science and Technology Commission, China [2010CSTC-BJLKR, CSTC2010AA4048]
- Fundamental Research Funds for the Central Universities, China [CDJXS10132203]
Ask authors/readers for more resources
The effects of Sn addition on the microstructure of as-cast and as-extruded Mg-9Li alloys were investigated. The results show that alpha-Mg, beta-Li, Li2MgSn, and Mg2Sn are primary phases in the microstructures of the as-cast and as-extruded Mg-9Li-xSn (x=0, 5; in mass fraction, %) alloys. Li2MgSn phase evolves from continuously net-like structure in the as-cast state to fine granular in the as-extruded state. After the extrusion, Mg-9Li-5Sn alloy has finer microstructures. Li2MgSn or Mg2Sn compound can act as the heterogeneous nucleation sites for dynamic recrystallization during the extrusion due to the crystallography matching relationship. Extrusion deformation leads to dynamic recrystallization, which results in the grain refinement and uniform distribution. The as-extruded Mg-9Li-5Sn alloy possesses the lowest grain size of 45.9 mu m.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available