Magnesium, the lightest structural metal, is of significance to improve energy efficiency in various applications. nanocomposites were successfully fabricated by ultrasonic cavitation based dispersion of SiC nanoparticles in Mg melts. As compared to pure magnesium, the mechanical properties including tensile strength and yield strength of the nanocomposites were improved significantly, while the good ductility of pure Mg was retained. The grain size of the pure magnesium was refined significantly when SiC nanoparticles were dispersed in the Mg matrix. In the microstructure of nanocomposites, while there were still some SiC microclusters, most of the SiC nanoparticles were dispersed very well. Transmission electron microscopy study of the interface between SiC nanoparticles and magnesium matrix indicates that SiC nanoparticles bond well with Mg without forming an intermediate phase.
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e-mail: xcli@engr.wisc.edu
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June 2008
Special Section: Micromanufacturing
Mechanical Properties and Microstructure of Nanocomposites Fabricated by Ultrasonic Cavitation Based Nanomanufacturing
Guoping Cao,
Guoping Cao
Department of Mechanical Engineering,
University of Wisconsin-Madison
, 1513 University Avenue, Madison, WI 53706
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Hiromi Konishi,
Hiromi Konishi
Department of Mechanical Engineering,
University of Wisconsin-Madison
, 1513 University Avenue, Madison, WI 53706
Search for other works by this author on:
Xiaochun Li
Xiaochun Li
Department of Mechanical Engineering,
e-mail: xcli@engr.wisc.edu
University of Wisconsin-Madison
, 1513 University Avenue, Madison, WI 53706
Search for other works by this author on:
Guoping Cao
Department of Mechanical Engineering,
University of Wisconsin-Madison
, 1513 University Avenue, Madison, WI 53706
Hiromi Konishi
Department of Mechanical Engineering,
University of Wisconsin-Madison
, 1513 University Avenue, Madison, WI 53706
Xiaochun Li
Department of Mechanical Engineering,
University of Wisconsin-Madison
, 1513 University Avenue, Madison, WI 53706e-mail: xcli@engr.wisc.edu
J. Manuf. Sci. Eng. Jun 2008, 130(3): 031105 (6 pages)
Published Online: May 5, 2008
Article history
Received:
June 12, 2007
Revised:
November 4, 2007
Published:
May 5, 2008
Citation
Cao, G., Konishi, H., and Li, X. (May 5, 2008). "Mechanical Properties and Microstructure of Nanocomposites Fabricated by Ultrasonic Cavitation Based Nanomanufacturing." ASME. J. Manuf. Sci. Eng. June 2008; 130(3): 031105. https://doi.org/10.1115/1.2823086
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