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Proceedings Paper

Effect of temperature on the dynamic compressive properties of magnesium alloy and its nanocomposite
Author(s): Jing Xiao; D. W. Shu; Kok Swee Goh
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Paper Abstract

Magnesium alloys are very attractive in applications such as automotive, railway and aerospace industries due to their low density in comparison with aluminum and steel alloys. Magnesium–based composites exhibit high specific properties compared to unreinforced magnesium alloys and they are found to be promising for mechanical applications under impact and high temperature conditions beyond those possible with magnesium alloys. In the present study, the effect of temperature variation has been investigated for both magnesium alloy AZ31B and the same alloy reinforced with silicon carbide nano-particles at high strain rates. The temperature is varied in the range from -30°C to 200°C at a high strain rate of 3300 s-1. Lower stresses and larger strains to peak compressive stresses are observed with increasing temperature. An analytic comparison between AZ31B alloy and AZ31B nanocomposite was also examined and results reveal that AZ31B nanocomposite displays superior strength properties with slightly weaker ductility than AZ31B alloy at all three temperature variations. The result of this is an improved energy absorption capability possessed by AZ31B nanocomposite.

Paper Details

Date Published: 2 June 2014
PDF: 6 pages
Proc. SPIE 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics, 92340G (2 June 2014); doi: 10.1117/12.2049822
Show Author Affiliations
Jing Xiao, Nanyang Technological Univ. (Singapore)
D. W. Shu, Nanyang Technological Univ. (Singapore)
Kok Swee Goh, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 9234:
International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics
Somnuk Sirisoonthorn, Editor(s)

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