Paper Titles
Change of Inclusion and Mechanical Properties of Magnesium Alloy during Vacuum Melting
p.195
Effect of RE Content on the Fracture Behavior in Mg-Gd-Nd-Zr Alloys
p.199
Microstructure and Precipitates in Mg-Zn-Y Alloys
p.203
Study on Electromagnetic Vibration Casting (EVC) of Magnesium Alloys
p.207
Influence of RE on Microstructure and Mechanical Properties of Mg-Li-Al Alloys
p.211
Effects of Non-Flux Purification on the Microstructure and Mechanical Properties of AZ31+xCa Mg Alloy
p.217
A Constitutive Model for Casting Magnesium Alloy Based on the Analysis of a Spherical Void Model
p.221
Microstructures and Mechanical Properties of Mg-Li-Zn Alloys as Processed by ECAE
p.225
Microstructural Characterization and Mechanical Behavior of an Mg-9%Li-1%Zn Alloy
p.229

Influence of RE on Microstructure and Mechanical Properties of Mg-Li-Al Alloys

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Abstract:

A series of alloys were designed and prepared using vacuum melting furnace. The as-cast microstructure and phase compositions of these alloys were characterized by optical microscope, X-ray diffraction (XRD) and scanning electronic microscope (SEM). The hardness and mechanical properties of alloys at room temperature were measured as well. The results show that the addition of RE leads to the formation of intermetallic Al3La distributed within grain boundaries. The intermetallic compound with oriented structure impedes grain growth, and refines the grain. The strength and the hardness of the alloys increase with the increase of the RE content in the range of 0.2-0.8 wt %.

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Periodical:

Materials Science Forum (Volumes 546-549)

Pages:

211-216

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.546-549.211

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Online since:

May 2007

Authors:

Bin Liu, M.L. Zhang, Zhong Yi Niu

Keywords:

Mg-Li Alloy, RE Alloying

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] H. Haferkamp, M. Niemeyer, R. Boehem, et al: Mater. Sci. Forum Vol. 350-351 (2000), P. 31.

Google Scholar

[2] P. Crawford, R. Barrosa, J. Mendez. et al: J. Mater. Proc. Techn. Vol. 56 (1996), P, 108.

Google Scholar

[3] Z.H. Chen, H.G. Yan, J.H. Chen, et al: Magnesium Alloy (Chemical Industry Press, Beijing 2004).

Google Scholar

[4] H.J. Zhang, J. Meng, D.X. Tang: J. Chinese Rare Earth Soc. Vol. 22 (2004), P. 40.

Google Scholar

[5] Y.X. Wang, S.K. Guan, J.Q. Wang, et al: The Chinese Journal of Nonferrous Metals Vol. 13 (2003), P. 616.

Google Scholar

[6] L.Y. Wei, G. L. Dunlop, H. Westengen: Mater. Sci. Techn. Vol. 12 (1996), P. 741.

Google Scholar

[7] C.W. Ye, Z.Y. Liu, K. Zhang, et al: Foundry Vol. 54 (2005), P. 356.

Google Scholar

[8] H.L. Ren: Metallographical Experiment Technic (Metallurgical Industry Press, Beijing 2004).

Google Scholar

[9] J.M. Xiao: Study on alloy energy (Shanghai Scientific and Technical Publishers, Shanghai 1985).

Google Scholar

[10] Z.H. Huang, X.F. Guo, Z.M. Zhang, et al: Rare Metals Vol. 28 (2004), P. 683.

Google Scholar

[11] X. Chao, L.M. Peng, X.Q. Zeng, et al: Materials for Mechanical Engineering Vol. 27 (2003), P. 21.

Google Scholar

[12] Q.D. Wang, Y.Z. Lü: Special Casting & Nonferrous Alloys Vol. 19 (1999), P. 40.

Google Scholar