Effect of indenter geometry and relationship between abrasive wear and hardness in early stage of repetitive sliding

Study of scratching Mg-based BMG using nanoindenter with Berkovich probe

“…The experimental results of the abrasive wear [27] confirmed that abrasive phenomena of aluminum alloys were strongly related to indenter geometry. For a spherical indenter, the abrasive wear resistance depended mainly on the hardness of the material;…”

“…whereas, for a conical indenter, the abrasive wear resistance primarily depended on the plastic deformation generated during scratch tests [27]. Therefore, in this study, Berkovich indenter is explored.…”

A novel multi-pass dual-indenter scratch test to unravel abrasion damage formation in construction steels

“…Moreover, da Silva and de Mello [31], and Da Silva et al [32] also employed parallel scratches but introducing a superimposition between scratches, which suggested that the wear mechanisms depend on the degree of superimposition. Furthermore, in addition to parallel scratches, the repetitive scratching in the same track [33] and the interaction of crossing scratches [34] were also employed to investigate the wear mechanisms. Compared to the single pass scratch on a pristine initial surface, all multiple scratching methods provide more insights on wear mechanisms, the interactions of scratches and the effects of work hardening.…”

Comparison of Ductile Damage Models During Scratch Tests - A Numerical Study

“…It has been argued that failure is prohibited by high compressive hydrostatic stress at large negative values of triaxiality [16]. Lou et al [17] suggested that fracture strain depends on lode angle as well as stress traxiality, as shown in (5). A variable cut-off value for stress triaxiality at different lode angles was proposed to describe damage initiation at a variety of stress state situations, including compressive loading, and is such referred to as a Lode-dependent Fracture Strain model (LFS).…”

“…Scratch tests have been widely used to study the abrasive wear of materials at different conditions. For instance, Mezlini et al [4,5] investigated how subsurface hardness and indenter geometry can change the wear modes in single and repetitive scratch tests. These studies confirm that an increase in the attack angle will shift the deformation from ploughing mode to cutting mode.…”