文档介绍：Available online at
ScienceDirect
Journal of Magnesium and Alloys 1 (2013) 297e302
-of-magnesium-and-alloys/2213-9567
Full length article
Effect of Ca addition on grain refinement of Mge9Lie1Al alloy
Ying Zeng a,b, Bin Jiang a,b,*, Dehui Huang a, Jiahong Dai a, Fusheng Pan a,b
a National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400030, China
b Advanced Materials Center, Chongqing Academy of Science and Technology, Chongqing 401123, China
Received 13 November 2013; revised 10 December 2013; accepted 13 December 2013
Abstract
The as-cast and as-extruded Mge9Lie1AlexCa alloys (x ¼ 0, ; wt%) were prepared by a simple alloying process followed by hot
extrusion with an extrusion ratio of . The microstructures of the as-cast and as-extruded Mge9Lie1AlexCa alloys were observed to
investigate the effect of calcium (Ca) element on the Mge9Lie1Al (LA91) alloy, and the crystallographic calculations between Al2Ca and the
matrix (a-Mg and b-Li phases) were examined on the basis of the edge-to-edge matching model. The