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Title: The synergistic ability of Al2O3 nanoparticles to enhance mechanical response of hybrid alloy AZ31/AZ91
Authors: Paramsothy, M. 
Chan, J.
Kwok, R.
Gupta, M. 
Keywords: Al2O3 nanoparticle
AZ31/AZ91 nanocomposite
Hybrid alloy
Mechanical properties
Issue Date: Jun-2011
Citation: Paramsothy, M., Chan, J., Kwok, R., Gupta, M. (2011-06). The synergistic ability of Al2O3 nanoparticles to enhance mechanical response of hybrid alloy AZ31/AZ91. Journal of Alloys and Compounds 509 (28) : 7572-7578. ScholarBank@NUS Repository.
Abstract: AZ31/AZ91 hybrid alloy nanocomposite containing Al2O3 nanoparticle reinforcement was fabricated using solidification processing followed by hot extrusion. The nanocomposite exhibited similar grain size to the monolithic hybrid alloy, reasonable Al2O3 nanoparticle distribution, non-dominant (0 0 0 2) texture in the longitudinal direction, and 25% higher hardness than the monolithic hybrid alloy. Compared to the monolithic hybrid alloy (in tension), the nanocomposite synergistically exhibited higher 0.2%TYS, UTS, failure strain and work of fracture (WOF) (+12%, +7%, +99% and +108%, respectively). Compared to the monolithic hybrid alloy (in compression), the nanocomposite exhibited higher 0.2%CYS and UCS, and lower failure strain and WOF (+5%, +3%, -7% and -7%, respectively). The beneficial effects of Al 2O3 nanoparticle addition on the enhancement of tensile and compressive properties of AZ31/AZ91 hybrid alloy are investigated in this paper. © 2011 Elsevier B.V. All rights reserved.
Source Title: Journal of Alloys and Compounds
ISSN: 09258388
DOI: 10.1016/j.jallcom.2011.04.120
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