The microstructure and mechanical properties of Mg-8Zn-8Al-4RE magnesium alloy

Wang, J., Wang, J., Xiao, W., Wu, Y. and Wang, L. (2007). The microstructure and mechanical properties of Mg-8Zn-8Al-4RE magnesium alloy. In: Magnesium- Aluminium Materials-Aerospace Materials-Superconducting and Functional Materials. 2nd International Conference on Magnesium, Beijing, China, (187-190). 25-30 June 2006.

Author Wang, J.
Wang, J.
Xiao, W.
Wu, Y.
Wang, L.
Title of paper The microstructure and mechanical properties of Mg-8Zn-8Al-4RE magnesium alloy
Conference name 2nd International Conference on Magnesium
Conference location Beijing, China
Conference dates 25-30 June 2006
Proceedings title Magnesium- Aluminium Materials-Aerospace Materials-Superconducting and Functional Materials   Check publisher's open access policy
Journal name Materials Science Forum   Check publisher's open access policy
Place of Publication Stafa-Zurich, Switzerland
Publisher Trans Tech Publications
Publication Year 2007
Sub-type Fully published paper
ISBN 0878494324
9780878494323
ISSN 0255-5476
Volume 546-549
Issue 1-4
Start page 187
End page 190
Total pages 4
Language eng
Formatted Abstract/Summary
The Mg-8Zn-8Al-4RE (RE = mischmetal, mass%) magnesium alloy was prepared by using casting method. The microstructure and mechanical properties of as-cast alloy, solid solution alloy and aged alloy samples have been investigated. Optical microscopy, X-ray diffractometery and scanning electron microscope attached energy spectrometer were used to characterize the microstructure and phase composition for the alloy. Net shaped τ-Mg32(Al,Zn) 49 phase was obtained at the grain boundary, and needle-like or blocky Al11RE3 phase disperses in grain boundary and α-Mg matrix. The τ-Mg32(Al,Zn)49 phase disappeared during solution treatment and a new phase of Al2CeZn 2 formed during subsequent age treatment. The mechanical properties were performed by universal testing machine at room temperature, 150°C and 200°C, separately. The ultimate tensile strength of as-cast alloy is lower compared to an age treatment alloy at 200°C for 12h. The strengths decreased with enhancing test temperature, but elongation has not been effect by age treatment.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

 
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Created: Tue, 25 Oct 2011, 14:53:20 EST by Viviane Victoria Crosthwaite on behalf of Faculty Of Engineering, Architecture & Info Tech