Corrosive wear phenomena are apparent in hydraulic machinery that handle slurries. This study focuses on the development of an integrated methodology of material assessment that is employed to underst under impinging slurry. The technique involves mass loss measurements and post-test analysis of the surface, which comprises measurement of wear scar depths and volumes, that yield the quantification of the various material degradation processes that occur directly under, and adjacent to, the impinging jet. A medium carbon steel and a stainless steel have been investigated, since they exhibit different corrosive wear behaviour.

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Cathodic protection prolongs the service life of fluid transport and offshore engineering components by suppressing corrosion. This study assesses the effect of two cathodic protection methods; impressed current cathodic protection (ICCP) and sacrificial anode cathodic protection (SACP), to three ferrous-based materials in laboratory controlled corrosive wear conditions. The SACP was as effective as ICCP on protection of the low alloy steel and white chromium cast iron under both solid and solid-free corrosive wear conditions. Under solid-liquid impingement, significant reductions in material loss were also observed in both the direct impingement zone and the outer area (oblique angle of attack). This demonstrates the substantial impact of cathodic protection systems that are exposed in erosion-corrosion dominated environments.

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