The effect of the amount of Y2O3 doped to the MA6000 alloy produced by mechanical alloying method on wear behavior

This paper investigated the wear performances of Y2O3 doped MA6000 (Ni-Cr-Al) alloy produced by mechanical alloying (MA). Produced, all powders were pre-formed cold pressing and sintered in a vacuum environment. Sintered MA6000- X% superalloys characterized scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) analysis, density, hardness measurements. Wear tests added alloys carried out block-on-ring type device. In tests, sliding speed 1 ms-1 at room temperature (RT) was performed under five different distances (200-1000 m) three loads (5 N, 10 15 N). As result studies, it determined that MA-ed superalloy homogeneous flake shape. With increase amount Y2O3, these increased from 267 to 431 Hv, but density slightly decreased. Different intermetallic/carbur phases such as Ni3Al MoC observed compositions. show weight loss rate decreased, friction coefficient (?) with increasing additive. Besides, applied load test, increased,