Please use this identifier to cite or link to this item: https://doi.org/10.1007/s10853-008-2649-3
Title: Effect of extrusion ratio on microstructure and mechanical properties of microwave-sintered magnesium and Mg/Y2O3 nanocomposite
Authors: Tun, K.S. 
Gupta, M. 
Issue Date: Jul-2008
Citation: Tun, K.S., Gupta, M. (2008-07). Effect of extrusion ratio on microstructure and mechanical properties of microwave-sintered magnesium and Mg/Y2O3 nanocomposite. Journal of Materials Science 43 (13) : 4503-4511. ScholarBank@NUS Repository. https://doi.org/10.1007/s10853-008-2649-3
Abstract: The present study establishes that extrusion ratio has a critical role in enhancing microstructural and mechanical characteristics of commercially pure magnesium and a magnesium-based nanocomposite. The study reveals that the best microstructural and mechanical characteristics can be achieved in a Mg/Y 2O3 nanocomposite provided it is extruded at a ratio higher than a critical extrusion ratio (19:1). An extrusion ratio at 25:1 is found to be the ratio in the present study which leads to significant enhancement in microstructural characteristics (low porosity and good distribution of particulates) and mechanical properties (microhardness, 0.2% YS and UTS) of a Mg/2 wt.%Y2O3 nanocomposite. Results of this study also show very close relationship between microhardness and strengths (0.2% YS and UTS) for both pure magnesium and Mg/Y2O3 composite extruded at different extrusion ratios. © 2008 Springer Science+Business Media, LLC.
Source Title: Journal of Materials Science
URI: http://scholarbank.nus.edu.sg/handle/10635/85938
ISSN: 00222461
DOI: 10.1007/s10853-008-2649-3
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