Abstract
A double mechanical alloying process (dMA) was employed to fabricate AlFe and AlFeMn alloys containing finely distributed intermetallic compounds and inert dispersoids (Al 4C 3 and Al 2O 3). The tribological properties of the produced alloys were investigated under fretting conditions. It was shown that the fretting behaviour strongly depends on contact conditions which are mainly determined by displacement and normal load, and the wear resistance of Al alloys can be improved by dispersion of large amount of intermetallics and inert dispersoids. Compared with current and competitive wear resistant Al alloys, the dMA AlFeMn alloy shows attractive wear and friction properties. The results indicate that Al alloys fabricated by dMA are promising for wear-resistance applications.
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