Chromite vs. magnetite as an erodent for coatings to be applied in steam turbines

► Chromite and magnetite were compared as erodents, on two coatings and one alloy. ► A small difference in erosion rate was observed for the NiCr alloy at 30° impact for the two erodents. ► At 90° impact a significant difference in erosion rates was observed between the two erodents. ► There was an order of magnitude increase in the erosion rate of the CrC coatings when using chromite.