L. F. Koroleva
MODIFIED NANOPARTICLE OXIDES FOR FINAL POLISHING
A concept of mechanochemical final polishing of hardened steels and non-ferrous metals with nanodispersed abrasive materials is discussed. It has been found that the solid solution of aluminum and iron oxides based on corundum and hematite, Al2-xFexO3 and Fe2-yAlyO3, which is derived from hydroxocomplexes, is tribochemically active, provides high productivity and nanoroughened surface (Ra 0.002 to 0.005 µm) in the processes of final polishing of ShKh15-type steels with austenitic-martensitic structure, as well as copper, aluminum and titanium and their alloys. The modification of the solid solution of aluminum and iron oxides with molybdenum, manganese and zirconium oxides provides a nanoroughened surface of non-ferrous metals in the processes of final polishing.
Keywords: modification, solid solutions, oxides, final polishing, mechanochemistry