Mechanical Properties and Microstrutures of Nano-Sized SiC Particles Reinforced AZ91D Nanocomposites Fabricated by High Intensity Ultrasonic Assisted Casting

Abstract:

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A high intensity ultrasonic assisted casting method was used to fabricate SiC nanoparticles reinforced magnesium matrix nanocomposites (n-SiCp/AZ91D). The microstructures and mechanical properties of the nanocomposites were investigated. The results show that n-SiCp are well dispersed in the matrix and the grain size was refined. A HRTEM study of the interface between n-SiCp and the matrix suggests that SiC bonds well with matrix without forming an intermediate phase. With the lower addition of n-SiCp, the mechanical properties of nanocomposites are greatly improved. As compared to an unreinforced magnesium alloy matrix, the tensile and yield strength were improved by 43.6% and 117% respectively.

Info:

Periodical:

Materials Science Forum (Volumes 618-619)

Edited by:

M.S. Dargusch & S.M. Keay

Pages:

449-452

DOI:

10.4028/www.scientific.net/MSF.618-619.449

Citation:

S. Y. Liu et al., "Mechanical Properties and Microstrutures of Nano-Sized SiC Particles Reinforced AZ91D Nanocomposites Fabricated by High Intensity Ultrasonic Assisted Casting", Materials Science Forum, Vols. 618-619, pp. 449-452, 2009

Online since:

April 2009

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Price:

$35.00

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