Please use this identifier to cite or link to this item:
|Title:||Dynamic tensile properties of magnesium nanocomposite|
|Authors:||Guo, Y.B. |
Split Hopkinson Tensile Bar
|Citation:||Guo, Y.B., Shim, V.P.W., Tan, B.W.F. (2012). Dynamic tensile properties of magnesium nanocomposite. Materials Science Forum 706-709 : 780-785. ScholarBank@NUS Repository. https://doi.org/10.4028/www.scientific.net/MSF.706-709.780|
|Abstract:||In this study, a Mg-6wt%Al alloy and its composite containing 0.22vol% Al 2O 3 nanoparticles are fabricated using a disintegrated melt deposition technique, and samples are subjected to quasi-static and dynamic tension. Compared to quasi-static loading, both materials exhibit significantly higher yield stresses and tensile strengths, much better ductility, and thus a higher energy absorption capacity under dynamic tension. In terms of nano-particle addition, its influence on the mechanical properties are not notable; enhancement of the elastic modulus, yield stress and tensile strength are negligible, and there is a small reduction in ductility. The tensile behaviour obtained in this investigation was compared with results of previous compression tests, and significant tension-compression asymmetry in the response is observed. The tensile yield stress is noticeably larger than that in compression, and the profile of the stress-strain curve for tension differs from that for compression - it is convex upwards for tension, but concave upwards for compression. A possible reason for this asymmetry is the occurrence of twinning in compression and its absence in tension. © 2012 Trans Tech Publications, Switzerland.|
|Source Title:||Materials Science Forum|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 16, 2019
WEB OF SCIENCETM
checked on Jan 7, 2019
checked on Jan 12, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.