Tribological Behaviors of Nanostructured Surface Layer Processed by Means of Surface Mechanical Attrition Treatment

Surface mechanical attrition treatment, an approach to fabricate nanostructured surface layer on bulk metallic materials has been extensively investigated in the past few years with respect to grain refinement mechanism, friction and wear behavior and the subsequent chemical treatments. The present paper briefly overviews the friction and wear behaviors of the surface nanocrystalline layers generated by SMAT on Cu, steels and Mg alloy with emphasis on reciprocating sliding wear behaviors. The potential applications of the present approach are also prospected.