Comparison of Silt Erosion Characteristics of Materials through Different Types of Test Methods.

Abstract

Abrasive wear patterns of materials were studied using experimental apparatuses of an impinging jet in air, an impinging jet in water and a rotating disk. These were also compared with patterns obtained with prototype turbines. Ploughing was main type, with some wedge type observed in the prototype turbine. These patterns resembled those observed for some test results with the impinging jet. Test results on the impinging jet could be shown on the abrasive wear mode diagram, applying the maximum degree of penetration Dpmax and shear strength f at the contact interface.