The microstructures and mechanical properties of cast Mg-Zn-Al-RE alloys

Xiao, Wenlong, Jia, Shusheng, Wang, Lidong, Wu, Yaoming and Wang, Limin (2009) The microstructures and mechanical properties of cast Mg-Zn-Al-RE alloys. Journal of Alloys And Compounds, 480 2: L33-L36. doi:10.1016/j.jallcom.2009.02.087


Author Xiao, Wenlong
Jia, Shusheng
Wang, Lidong
Wu, Yaoming
Wang, Limin
Title The microstructures and mechanical properties of cast Mg-Zn-Al-RE alloys
Journal name Journal of Alloys And Compounds   Check publisher's open access policy
ISSN 0925-8388
1873-4669
Publication date 2009-07-08
Sub-type Article (original research)
DOI 10.1016/j.jallcom.2009.02.087
Volume 480
Issue 2
Start page L33
End page L36
Total pages 4
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Formatted abstract
The microstructures and mechanical properties of cast Mg-Zn-Al-RE alloys with 4 wt.% RE and variable Zn and Al contents were investigated. The results show that the alloys mainly consist of α-Mg, Al2REZn2, Al4RE and τ-Mg32(Al,Zn)49 phases, and a little amount of the β-Mg17Al12 phase will also be formed with certain Zn and Al contents. When increasing the Zn or Al content, the distribution of the Al2REZn2 and Al4RE phases will be changed from cluster to dispersed, and the content of τ-Mg32(Al,Zn)49 phase increased gradually. The distribution of the Al2REZn2 and Al4RE phases, and the content of β- or τ-phase are critical to the mechanical properties of Mg-Zn-Al-RE alloys. The Mg-6Zn-5Al-4RE alloy with cluster Al2REZn2 phase and low content of β-phase, exhibits the optimal mechanical properties, and the ultimate tensile strength, yield strength and elongation are 242 MPa, 140 MPa and 6.4% at room temperature, respectively.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Faculty of Engineering, Architecture and Information Technology Publications
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Created: Tue, 25 Oct 2011, 14:29:33 EST by Viviane Victoria Crosthwaite on behalf of Faculty Of Engineering, Architecture & Info Tech