Nano- particulates containing ductile magnesium nanocomposites were synthesized using blend-press-sinter powder metallurgy technique followed by hot extrusion. Microstructural characterization of the nanocomposite samples showed fairly uniform reinforcement distribution, good reinforcement-matrix interfacial integrity, significant grain refinement of magnesium matrix with increasing presence of reinforcement, and the presence of minimal porosity. Mechanical properties characterization revealed that the presence of nano- reinforcement leads to marginal increases in hardness, 0.2% yield strength and ultimate tensile strength, but a significant increase in ductility and work of fracture of magnesium. The fracture mode was changed from brittle for pure Mg to mix ductile and intergranular in the case of nanocomposites.
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July 2007
Technical Papers
Development and Characterization of Ductile Nanocomposites
S. F. Hassan,
S. F. Hassan
Department of Mechanical Engineering,
National University of Singapore
, 9 Engineering Drive 1, Singapore 117575
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M. Gupta
M. Gupta
Department of Mechanical Engineering,
National University of Singapore
, 9 Engineering Drive 1, Singapore 117575
Search for other works by this author on:
S. F. Hassan
Department of Mechanical Engineering,
National University of Singapore
, 9 Engineering Drive 1, Singapore 117575
M. Gupta
Department of Mechanical Engineering,
National University of Singapore
, 9 Engineering Drive 1, Singapore 117575J. Eng. Mater. Technol. Jul 2007, 129(3): 462-467 (6 pages)
Published Online: January 11, 2007
Article history
Received:
July 3, 2006
Revised:
January 11, 2007
Citation
Hassan, S. F., and Gupta, M. (January 11, 2007). "Development and Characterization of Ductile Nanocomposites." ASME. J. Eng. Mater. Technol. July 2007; 129(3): 462–467. https://doi.org/10.1115/1.2744418
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