Crystal plasticity and the delamination theory of wear

Abstract

Some implications of crystal plasticity effects with respect to the delamination theory of wear are discussed. Critical experiments to clarify the soft versus hard surface question, of interest with respect both to wear and to deformation in general, are suggested. A specific dislocation model for hexagonal close-packed (h.c.p.) metals under wear conditions is proposed and a correlation with stacking fault energy for face-centred cubic (f.c.c.) and h.c.p. metals is discussed.