Plastic deformation below worn surfaces

Remarks on the application of two-dimensional shape factors under severe wear conditions

“…Taking into account the observations presented in the Refs. [5,20] and considering the extensive plastic deformation of metals as an intrinsic phenomenon during severe abrasion-closely related to the clogging occurrencethe used two-dimensional shape factors to describe the severity of a wear system involving coated abrasive papers against engineering materials, such as steels and cast irons, should be done carefully.…”

Effect of Abrasive Particle Size on Abrasive Wear Resistance in Otomotive Steels

“…It was also suggested that the fraction of the load carried by particle in elastic contact increased with decreasing grit size since it is unlikely that the abrasive grits gradually become more angular with increased size. Moore and Douthwaite [11], have tried to explain the size effect by plastic deformation concept below worn surfaces. They estimated the equivalent plastic strain and the flow stress as a function of depth below worn surface and calculated the work done in deforming the material below the groove and energy absorbed in plowing the surface.…”

Defect Profile Induced by Friction and Wear Processes Detected by Positron Annihilation Method

“…The deformation is caused by the normal and shear tractions at the contact interface and is an integral part of the friction and wear processes. The microscopic examination of the highly deformed near-surface regions has shown that plastic deformation plays an important role in sliding wear, abrasion, and erosion processes [1][2][3]. The deformation results in void formation, crack nucleation and propagation, extrusion and other processes that lead to the material removal.…”