Production of Aluminium Matrix Nanocomposite Feedstock for Thixoforming by an Ultrasonic Method

Sinan Kandemir; Anurag Yalamanchili; H.V. Atkinson

doi:10.4028/www.scientific.net/KEM.504-506.339

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The Influence of Particle Size on Viscosity in Thixo Material
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Production of Aluminium Matrix Nanocomposite Feedstock for Thixoforming by an Ultrasonic Method
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 504-506Production of Aluminium Matrix Nanocomposite...

Production of Aluminium Matrix Nanocomposite Feedstock for Thixoforming by an Ultrasonic Method

Abstract:

Metal matrix nanocomposites (MMNCs) could be strong candidates for use in the automotive and aerospace industry, where the mechanical performance is a crucial factor. This study aims to determine the feasibility of Al/SiC nanocomposite fabrication by the ultrasonic technique for the production of thixoforming feedstock material. Aluminium (A356) matrix composites were fabricated with the addition of 0.2 wt.% SiC nanoparticles using an ultrasonic method. Two different particle feeding mechanisms; the Al foil double capsulate method and the crucible placement approach, were employed. Better results were obtained for the double capsulate method. Also, Ti and Nb probe tips were tried to provide ultrasonic vibration in the melt. It has been shown that Nb is a promising ultrasonic probe tip material to produce MMNCs above 650 °C as it is thermodynamically stable in comparison with Ti.

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Periodical:

Key Engineering Materials (Volumes 504-506)

Pages:

339-344

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.504-506.339

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Online since:

February 2012

Authors:

Sinan Kandemir, Anurag Yalamanchili, H.V. Atkinson

Keywords:

Aluminum (Al), Metal Matrix Nanocomposites, Semi-Solid Processing, SiC Nanoparticle, Thixoforming, Ultrasonic Cavitation

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