Influences of Gd on the microstructure and strength of Mg-4.5Zn alloy

Yang, Jie, Xiao, Wenlong, Wang, Lidong, Wu, Yaoming, Wang, Limin and Zhang, Hongjie (2008) Influences of Gd on the microstructure and strength of Mg-4.5Zn alloy. Materials Characterization, 59 11: 1667-1674. doi:10.1016/j.matchar.2008.03.007

Author Yang, Jie
Xiao, Wenlong
Wang, Lidong
Wu, Yaoming
Wang, Limin
Zhang, Hongjie
Title Influences of Gd on the microstructure and strength of Mg-4.5Zn alloy
Journal name Materials Characterization   Check publisher's open access policy
ISSN 1044-5803
Publication date 2008-11
Sub-type Article (original research)
DOI 10.1016/j.matchar.2008.03.007
Volume 59
Issue 11
Start page 1667
End page 1674
Total pages 8
Place of publication Philadelphia, PA, United States
Publisher Elsevier
Language eng
Formatted abstract
Microstructure and mechanical properties of peak-aged Mg–4.5Zn–xGd (x = 0, 0.5, 1.0 and 1.5 wt.%) alloys have been investigated. The results showed that the grain size of the alloys was refined gradually with increasing Gd. Mg5Gd and Mg3Gd2Zn3 phases were found in the Gd-containing alloys. The strengths were greatly improved with Gd additions, and the highest strength level was obtained in the Mg–4.5Zn–1.5Gd alloy, in which the ultimate tensile strength and yield strength were 231 MPa and 113 MPa, respectively. Through comparing with the Mg–4.5Zn alloy, the increments of ultimate tensile strength and yield strength were 22 MPa and 56 MPa, respectively. The improved strength was mainly correlated to the grain refining effect, the strengthening effect of the Mg5Gd and Mg3Gd2Zn3 phases and also the hardening effect of the solutioned Gd atoms.
Keyword Mg–Zn–Gd alloys
Solution treatment
Mechanical properties
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, 15:00:43 EST by Viviane Victoria Crosthwaite on behalf of Faculty Of Engineering, Architecture & Info Tech