Abstract
Abstract Resistance to wear is an important factor in design and selection of structural components in motion and in contact with a mating surface. The present work deals with studies on fretting wear behavior of mechanically alloyed 1.0 wt.% nano-Y2O3 dispersed 71.0Fe–25.5Cr–2.0Al–0.5Ti (wt.%) ferritic steel consolidated by hot isostatic pressing at 600, 800 and 1000 °C under 1.2 GPa uniaxial pressure applied for 1 h. The wear experiments were carried out in gross slip fretting regime against 6 mm diameter tungsten carbide ball at ambient temperature. The highest resistance to fretting wear has been observed in the alloy sintered at 1000 °C. The fretting involves localized plastic deformation and oxidation as evidenced by post wear surface profile and micro-compositional analysis, respectively.
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