Paper Title:
Influence of RE on Microstructure and Mechanical Properties of Mg-Li-Al Alloys
  Abstract

A series of alloys were designed and prepared using vacuum melting furnace. The as-cast microstructure and phase compositions of these alloys were characterized by optical microscope, X-ray diffraction (XRD) and scanning electronic microscope (SEM). The hardness and mechanical properties of alloys at room temperature were measured as well. The results show that the addition of RE leads to the formation of intermetallic Al3La distributed within grain boundaries. The intermetallic compound with oriented structure impedes grain growth, and refines the grain. The strength and the hardness of the alloys increase with the increase of the RE content in the range of 0.2-0.8 wt %.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
211-216
DOI
10.4028/www.scientific.net/MSF.546-549.211
Citation
B. Liu, M.L. Zhang, Z. Y. Niu, "Influence of RE on Microstructure and Mechanical Properties of Mg-Li-Al Alloys", Materials Science Forum, Vols. 546-549, pp. 211-216, 2007
Online since
May 2007
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Price
$32.00
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