Paper Titles
Plastic Deformation Behavior of Mg-Li Alloys at Ambient and Elevated Temperatures
p.531
The Effects of Grain Size on Ductility of AZ31 Magnesium Alloy
p.535
Strengthening Behaviours of AZ31 Mg-Alloy during Warm Forming
p.539
Plastic Deformation on High Purity Magnesium Prepared by Deposition Technique
p.543
Plastic Deformation Behaviors and Microstructures of a Wrought Mg-Zn-Rare Earth Alloy
p.547
Dynamic Analysis on Thermal Deformed AZ61B Magnesium Alloy
p.551
Mechanisms of Plastic Deformation in Pure Mg and AZ31 Mg Alloy Polycrystals
p.555
The Effect of Thermomechanical Treatment on the Mechanical Behavior of Mg-Al-Zn Alloys
p.559
Hot Compression Behavior of Liquidus Casting ZK60 Magnesium Alloy
p.563

Plastic Deformation Behaviors and Microstructures of a Wrought Mg-Zn-Rare Earth Alloy

Article Preview

Abstract:

The hot compression simulation of an experimental Mg-Zn-Nd alloy at different temperatures is studied by the Gleebe-1500 equipment. The deformation is performed with the strain rates 0.1s-1, 0.01s-1 and 0.002s-1. The plastic deformation behavior is analyzed at different temperatures and the deformation activation energy is calculated. The microstructures of experimental alloy during the deformation process are observed. The results show that the working hardening, dynamic recovery and dynamic recrystallization (DRX) operate under different temperatures and strain rate. The DRX starts when the temperature is over 473K and the DRX grain size after hot deformation is only 5~10μm. So the refined grains improve both the tensile strength and elongation of alloys at room temperature. The precipitate phase Mg12Nd impede the movement of dislocations, it benefit to the mechanical properties and grain refining of magnesium alloy.

You might also be interested in these eBooks
Magnesium - Science, Technology and Applications View Preview

Info:

Periodical:

Materials Science Forum (Volumes 488-489)

Pages:

547-550

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.488-489.547

Citation:

Cite this paper

Online since:

July 2005

Authors:

Kun Yu, Wen Xian Li, Ri Chu Wang, Yude Xiao, Zhengqin Ma

Keywords:

Mg-Zn-Nd Alloy, Plastic Deformation Behavior, Wrought

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] I.J. Polmear, Light Alloys: Metallurgy of Light Metals, 2nd London: Edward Arnold, (1989) p.1.

Google Scholar

[2] Y. Kojima, Mater. Sci. Forum, Vol. 350~351(2000) p.3.

Google Scholar

[3] Y. Kojima, Mater. Sci. Forum, Vol. 419~422(2003) p.3.

Google Scholar

[4] K.U. Kainer, Magnesium alloy and technology, (Weinheim: Wiley-VCH Verlag Gmbh&Co. KgaA, 2003).

Google Scholar

[5] Asm International, Magnesium And Magnesium Alloy, (OH: Metal Park 1999).

Google Scholar

[6] R. W. Cahn , Microstructures and Properties of Nonferrous Alloys, (Beijing: Science Press 1999).

Google Scholar

[7] Kun Yu, Wenxian Li, J. Mater. Sci. &Tech., Vol. 18(2002) p.378.

Google Scholar

[8] A. Mwembela, E.B. Konopleva, H.J. Mcqueen. Scripta. Mater. Vol. 37(1997) p.1789.

Google Scholar

[9] A. Galiyev, R. Kaibyshev, G. Gottstein, Acta. Mater. Vol. 49(2001) p.1199 Fig. 4. Dislocations and Mg12Nd phase in the experimental alloy ←Mg12Nd.

Google Scholar