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Title of Journal: Int J Miner Metall Mater

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Abbravation: International Journal of Minerals, Metallurgy, and Materials

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University of Science and Technology Beijing

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DOI

10.1016/0167-2584(93)91084-2

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ISSN

1869-103X

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Mechanical and wear properties of AlAlSubscript

Authors: A Zolriasatein R A Khosroshahi M Emamy N Nemati
Publish Date: 2013/03/08
Volume: 20, Issue: 3, Pages: 290-297
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Abstract

βAl3Mg2 intermetallic was used as a reinforcing agent to improve the mechanical properties of an aluminum matrix Different amounts of Al3Mg2 nanoparticles ranging from 0wt to 20wt were milled with aluminum powders in a planetary ball mill for 10 h Consolidation was conducted by uniaxial pressing at 400°C under a pressure of 600 MPa for 2 h Microstructural characterization confirms the uniform distribution of Al3Mg2 nanoparticles within the matrix The effects of nanosized Al3Mg2 content on the wear and mechanical properties of the composites were also investigated The results show that as the Al3Mg2 content increases to higher levels the hardness compressive strength and wear resistance of the nanocomposites increase significantly whereas the relative density and ductility decrease Scanning electron microscopy SEM analysis of worn surfaces reveals that a transition in wear mechanisms occurs from delamination to abrasive wear by the addition of Al3Mg2 nanoparticles to the matrix

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