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Aluminum nanocomposites having wear resistance better than stainless steel

Published online by Cambridge University Press:  06 September 2011

Linan An ,
Jun Qu ,
Jinsong Luo ,
Yi Fan ,
Ligong Zhang ,
Jinling Liu ,
Chengying Xu  and
Peter J. Blau
Linan An*
Affiliation:
Advanced Materials Processing and Analysis Center, Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, Florida 32826
Jun Qu
Affiliation:
Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Jinsong Luo
Affiliation:
Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Yi Fan
Affiliation:
Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Ligong Zhang
Affiliation:
Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Jinling Liu
Affiliation:
Advanced Materials Processing and Analysis Center, Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, Florida 32826
Chengying Xu
Affiliation:
Advanced Materials Processing and Analysis Center, Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, Florida 32826
Peter J. Blau
Affiliation:
Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Tribological behavior of alumina-particle-reinforced aluminum composites made by powder metallurgy process has been investigated. The nanocomposite containing 15 vol% of Al2O3 nanoparticles exhibits excellent wear resistance by showing significantly low wear rate and abrasive wear mode. The wear rate of the nanocomposite is even lower than stainless steel. We have also demonstrated that such excellent wear resistance only occurred in the composite reinforced with the high volume fraction of nanosized reinforcing particles. The results were discussed in terms of the microstructure of the nanocomposite.

Keywords

NanostructureAlTribology
Type
Materials Communications
Information
Journal of Materials Research , Volume 26 , Issue 19 , 14 October 2011 , pp. 2479 - 2483
Copyright
Copyright © Materials Research Society 2011

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