Effect of Mg24Y5 intermetallic particles on grain refinement of Mg-9Li alloy

Zeng, Ying, Jiang, Bin, Zhang, Mingxing, Yin, Hengmei, Li, , Ruihong and Pan, Fusheng (2014) Effect of Mg24Y5 intermetallic particles on grain refinement of Mg-9Li alloy. Intermetallics, 45 18-23. doi:10.1016/j.intermet.2013.09.005


Author Zeng, Ying
Jiang, Bin
Zhang, Mingxing
Yin, Hengmei
Li, , Ruihong
Pan, Fusheng
Title Effect of Mg24Y5 intermetallic particles on grain refinement of Mg-9Li alloy
Journal name Intermetallics   Check publisher's open access policy
ISSN 0966-9795
1879-0216
Publication date 2014-02
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.intermet.2013.09.005
Volume 45
Start page 18
End page 23
Total pages 6
Place of publication Camden, London, United Kingdom
Publisher Elsevier Ltd
Collection year 2014
Language eng
Subject 2210 Mechanical Engineering
2211 Mechanics of Materials
2505 Materials Chemistry
2506 Metals and Alloys
1600 Chemistry
Abstract The microstructures of the as-cast and as-extruded Mg-9Li-xY alloys (x = 0, 0.3; wt%) were observed to investigate the effect of Y on the Mg-9Li alloy, and the crystallographic calculations between Mg24Y5 and the matrix were examined on the basis of the edge-to-edge matching model. The results indicated that with the addition of 0.3 wt% Y, the average grain size of α-Mg phases in the as-cast Mg-9Li alloy and β-Li phases in the as-extruded Mg-9Li alloy were reduced remarkably, which was caused by the formation of Mg24Y5 intermetallic compound. Furthermore, crystallographic calculations confirmed that Mg24Y5 particles were effective grain refiners for both α-Mg and β-Li phases in Mg-9Li alloy.
Keyword Rare earth intermetallics
Crystal growth
Microstructure
Electron microscopy scanning
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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