Abrasive wear characteristics of Fe-2C-5Cr-5Mo-5W-5Nb multi-component white cast iron

As results, the amount of wear loss of the multi-component white cast irons containing Nb is less compared to that of the multi-component white cast irons containing V, showing good abrasive wear resistance. Especially, material 5Nb-5Co showed the best abrasive wear resistance. Area ratio of eutectic carbides and secondary carbides in any of the specimens were at the same level. However, eutectic MC carbide of multi-component cast iron containing Nb was larger as compared to that of multi-component cast iron containing V, showing higher resistance to the contact with the abrasive grains. Therefore, it was suggested that by adding Nb as an alternative to V, it's possible to develop a new wear resistant material.