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Title: Feasibility study on utilizing carbon dioxide during the processing of Mg-Al alloys
Authors: Subramanian, J. 
Guan, K.C.
Kuma, J. 
Gupta, M. 
Keywords: Carbon utilization
Magnesium alloys
Mechanical properties
Metal casting
Issue Date: Aug-2011
Citation: Subramanian, J., Guan, K.C., Kuma, J., Gupta, M. (2011-08). Feasibility study on utilizing carbon dioxide during the processing of Mg-Al alloys. Journal of Materials Processing Technology 211 (8) : 1416-1422. ScholarBank@NUS Repository.
Abstract: The feasibility of utilizing carbon dioxide (CO2) during magnesium-aluminium (Mg-Al) alloys processing was investigated by incorporating CO2 gas during melting and casting of the alloys. Mg-Al alloys containing ∼3 wt.% and ∼5 wt.% Al were processed with and without CO2 atmosphere using the disintegrated melt deposition (DMD) technique. The cast alloys after extrusion were characterized for their structural, physical and mechanical properties to identify the utilization of carbon dioxide during processing. Results indicated that sound, defect-free Mg-Alloys were produced with CO2 processing. Improvement in mechanical properties such as hardness, tensile strength and compressive yield strength were observed. The in situ formation of Al4C3 phase during processing was identified as the reason for the improvement in the properties, which indicated the utilization of carbon dioxide by the melt. © 2011 Elsevier B.V. All rights reserved.
Source Title: Journal of Materials Processing Technology
ISSN: 09240136
DOI: 10.1016/j.jmatprotec.2011.03.016
Appears in Collections:Staff Publications

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