Dry sliding friction and wear experiments were performed with pin-on-disc techniques usifng WC and brass pins in contact with quasicrystalline (Al_65Cu_23Fe_12) and crystalline (Al_50Cu_35Fe_15 and Al_70Cu_20Fe_10) discs,which were prepared by powder metallurgy routes.the contact loads (1,5 and 10 N) used in this study produced similar coefficients of friction 0.3-0.4 for the Al_65Cu_23Fe_12 and Al_50Cu_35Fe_15 phases.these values are higher than previously reported for quasicrystalline and related crystalline phases.Possible reasons for these differences are presented.the contrasting wear behavior between different pins and discs is discussed in terms of contact area,oxidation,material transfer mechanisms and fracture characteristics.
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