Study on the Wear Modes of PVD Films Using Different Concentrations of Al2O3 Abrasive Particles and Textured Rotating Balls

Abrasive wear is a mechanism that results in loss of material from the interaction surface with hard particles. This type frequently found machining tools. Microscale abrasion equipment often used to characterize resistance abrasive surface. The different parameters able control micro-abrasion tests, such as ball rotation, sliding distance between and sample, slurry concentration, normal load acting on flow rate over have been widely studied. combination variables, including distance, concentration particles, their hardness, size promotes transition two-body, three-body, or mixed modes. However, influence dragging which reflected modes, still poorly One variables possible less studied texture particles tests. work intends correlate effect testing times (500, 1000, 1500 cycles) concentrations 3 μm Al2O3 (25, 35, 45 g/100 mL) micro TiN thin coating film, using balls AISI 52100 steel whose roughness were prepared by 60 s chemical etching. rotation speed each test was 80 rpm, applying 2 N. Subsequently, craters carefully analyzed SEM evaluate mode function applied load, particle distance. textured tracks observed via assess dynamics. showed that, contrarily what reported literature regarding modes where rolling promoted increasing this grooving took place instead. result rough use experiments which, due embedment grooves, mechanism. higher mechanism, since more are available scratch