Paper Titles
Linking Meso- and Macroscale Simulations: Crystal Plasticity of hcp Metals and Plastic Potentials
p.1741
Microstructure and Mechanical Properties of Mg Alloy Sheets Produced by Twin Roll Caster
p.1747
Press Forging of Magnesium Alloy AZ31 Sheets
p.1753
Effects of Differential Speed Rolling on Microstructure and Mechanical Properties of AZ31 Magnesium Alloy
p.1759
Influence of Microstructural Change on Damping Capacity of Mg-X%Li Alloys
p.1764
HRTEM Observation of the Precipitates in Heat-Resistant Mg-Gd-Y-Zr Alloy
p.1769
Effects of Zn and Sn Additions on the Mechanical Properties of Mg-3%Al Alloy
p.1775
Microstructure and Texture Evolution during Large Strain Hot Rolling of AZ31 Mg Alloy
p.1780
Microstructural Characteristics and Creep Properties of Mg-5Al-2Si Alloys Modified with Sn and Sr
p.1784

Influence of Microstructural Change on Damping Capacity of Mg-X%Li Alloys

Article Preview

Abstract:

The Effects of Li content and annealing treatment on microstructure and damping capacity for Mg-X%Li alloys have been investigated, based on experimental results from X-ray diffractometry (XRD), optical microscopy (OM), hardness tests and vibration damping tests in a flexural mode. The Mg-X%Li alloys containing Li of 3%, 8% and 13% consist of α (HCP) single phase, (α + β (BCC)) dual phases and β single phase, respectively. In as-rolled state, the damping capacity for Mg-Li alloys shows a similar level regardless of Li content. The annealing treatments at 200oC and 400οC give rise to an enhancement of damping capacity only for the Mg-3%Li and Mg-8%Li alloys containing α phase, and at the same annealing temperature, the Mg-3%Li alloy with fully α structure exhibits higher damping capacity. This result indicates that the damping capacity of Mg-Li alloys depends principally on α phase, and that the annealing treatment is necessary to improve its damping capacity.

You might also be interested in these eBooks
THERMEC 2006 View Preview

Info:

Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

1764-1768

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.1764

Citation:

Cite this paper

Online since:

March 2007

Authors:

Joong Hwan Jun, Ki Duk Seong, Jeong Min Kim, Ki Tae Kim, Woon Jae Jung

Keywords:

Damping Capacity, Mg-Li Alloy, Microstructure

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] Magnesium Elektron Data Sheet 462 (ELEKTRON ZA).

Google Scholar

[2] K. Sugimoto: Mem. Inst. Sci. Ind. Res. Osaka Univ. Vol. 35 (1978), p.31.

Google Scholar

[3] H. Okamoto: Desk Handbook of Phase Diagrams for Binary Alloys (ASM International, USA 2000).

Google Scholar

[4] L. Feng, B. Chen, P. Liu, T. Zhou and H. Li: Mater. Sci. Forum Vol. 488-489 (2005), p.239.

Google Scholar

[5] G.Y. Sha, Y.B. Xu and E.H. Han: Mater. Sci. Forum Vol. 488-489 (2005), p.717.

Google Scholar

[6] W. Tang, Y.B. Xu and E.H. Han: Mater. Sci. Forum Vol. 488-489 (2005), p.531.

Google Scholar

[7] Z. Trojanova, Z. Drozd, P. Lukac and F. Chmelik: Mater. Sci. Eng. A410-A411 (2005), p.148.

Google Scholar

[8] G.S. Song and M.V. Kval: Mater. Characterization Vol. 54 (2005), p.279.

Google Scholar

[9] Z. Drozd, Z. Trojanova and S. Kudela: J. Alloy Comp. Vol. 378 (2004), p.192.

Google Scholar

[10] J.H. Jun and C.S. Choi: Mater. Sci. Eng. Vol. A252 (1998), p.133.

Google Scholar

[11] A. Granato and K. Lücke: J. Appl. Phys. Vol. 27 (1956), p.583.

Google Scholar