“…The markings on facets in this work are additional signs that there could indeed be a wear mechanism involved in internal crack initiation in Ti-6Al-4V. 36 The explanation of the presence of markings on facets in these experiments, and the absence of these markings in similar publications, 3,7,8,10,11,17,20 can be sought in the crystallographic texture of the alpha phase, which is different for the wire-drawn samples in this study compared to the forged rods used in other studies. It has been reported that facets are parallel to certain crystallographic planes, in most cases the basal plane 7,12,27,32,37,38 or the prismatic plane, 7,27 which means that the spatial angles of the facet planes are linked to the texture.…”