Erosion wear of stainless steel by abrasives entrained in a water jet

Erosion of stainless steel by abrasives entrained in a water jet often thre ats industrial equipment, such as the turbine blades of hydraulic power gen erators. It degrades system efficiency and increases maintenance costs. The current study investigates the erosion of SUS304 and SUS410 by garnet and quartz sand entrained in a water jet. The correlation between erosion time, impinging velocity, impinging angle, abrasive mass fraction, abrasive char acteristics, and the material, shown as a result of the experiment, demonst rates that the erosion mechanism is ductile mode, that the material is erod ed by micro-cutting, extrusion, and forging associated with severe, localiz ed, plastic deformation. SUS410 possesses slightly better erosion resistanc e due to its higher yield strength. The wear fates of both materials are ma inly affected by the impinging velocity and angle. The accumulative weight loss is proportional to the abrasive mass flow. The maximum wear occurs at an angle between 30 and 45 degrees. Higher velocity results in more extensi ve erosion wear.