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Title: Mechanical property retention in remelted microparticle to nanoparticle AZ31/Al2O3 composites
Authors: Paramsothy, M. 
Nguyen, Q.B. 
Tun, K.S. 
Chan, J.
Kwok, R.
Kuma, J.V.M. 
Gupta, M. 
Keywords: AZ31/Al2O3 composites
Mechanical properties
Issue Date: 17-Sep-2010
Citation: Paramsothy, M., Nguyen, Q.B., Tun, K.S., Chan, J., Kwok, R., Kuma, J.V.M., Gupta, M. (2010-09-17). Mechanical property retention in remelted microparticle to nanoparticle AZ31/Al2O3 composites. Journal of Alloys and Compounds 506 (2) : 600-606. ScholarBank@NUS Repository.
Abstract: In this work, three AZ31/Al2O3 composites were synthesized and remelted using the disintegrated melt deposition solidification processing technique. Al2O3 particles of 50 nm, 300 nm and 1000 nm sizes were individually used to formulate the composites of 1.5 vol%, 5.0 vol% and 10.0 vol% reinforcement content, respectively. In each case after extrusion, the change in microstructure and mechanical properties before and after remelting was not significant. Given the strong affinity Mg has for oxygen from the Al2O3 particle, the insignificant change in mechanical properties indicated the friendly nature of AZ31/Al2O 3 composites towards initial remelting. In particular, compared to the submicron and micron particle reinforced composites of limited tensile ductility, the nanoparticle reinforced composite retained its significantly higher tensile ductility (up to +400% more) after the initial remelting. © 2010 Elsevier B.V. All rights reserved.
Source Title: Journal of Alloys and Compounds
ISSN: 09258388
DOI: 10.1016/j.jallcom.2010.07.123
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