Application research of ferrous matrix composites in roller ring used in high-speed wire/bar rolling mill

▶ A composite structure roller rings was fabricated by centrifugal casting. ▶ The roller rings consisted of outer WCP/Fe-C composites layer and inner Fe-C alloy matrix. ▶ Hardness attained to HRA80-85 in the composites layer, and HRA73-76 in inner Fe-C alloy matrix where the toughness was over 8 J/cm2. ▶ The wear resistance of the roller rings excelled that of high-speed steel, and approached to that of the WC hard alloy roll. ▶ The production cost of the WCP/Fe-C composites roller ring decreased by 50%.