(1)Wearbytransferenceofmaterialfromonesurfacetoanotherduringrelativemotionduetoaprocessofsolid-phasewelding.Particlesthatareremovedfromonesurfaceareeitherpermanentlyortemporarilyattachedtotheothersurface.
(2)Wearduetolocalizedbondingbetweencontactingsolidsurfacesleadingtomaterialtransferbetweenthetwosurfacesorlossfromeithersurface.Comparewithabrasivewear.