Improvement in erosion-corrosion resistance of high-chromium cast irons by trace boron

This study was focused on tailoring an existing HCCI used in the oil sands industry by adding trace boron. Microstructure and relevant properties of the modified cast irons were characterized and evaluated. It was demonstrated that trace boron markedly increased the resistance of the cast iron to slurry erosion. The mechanism responsible for the improvement was analyzed based on observed variations in microstructure and properties.