The present work has been carried out to investigate the effect of particle shape, density and hardness on erosion wear of aluminum alloy 6063 (AA6063) and stainless steel 304L (SS 304L) in aqueous mixture of three erodents namely quartz, alumina and silicon carbide (SiC). The wear of the two materials has seen maximum with alumina particles and minimum with quartz particles. Surface topography of the worn surfaces by scanning electron microscope (SEM) has shown that the craters formed due to impact of blocky shaped quartz particles at acute impact angles are flat and short in length compared to that due to the angular shaped alumina or SiC particles. This resulted in higher cutting wear by alumina or SiC particles as compared to the quartz particles.

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