Effect of nano-SiC powders on abrasion properties of ultra-low carbon martensitic stainless cast steel

The turbine steel has to suffer the dual effects of sediment erosion and corrosion. The nano-SiC powders were poured into the melt for ultra-low carbon martensitic stainless steel, and the abrasion test was carried out in sand-water mixture with and without NaCl to study the effect of nano-SiC powder addition on corrosion resistant properties of the steel. The results show that the martensitic stainless steel strengthened by nano-SiC powders shows superior abrasion performance. When the addition of SiC powders is 0.1%, the erosion rates in the sand-water mixture with 3.5% NaCl and sand-water mixture without NaCl, decrease by 86% and 90%, respectively.