This investigation deals with forming nano carbon cast iron with the stir casting method, its x-ray and microscopic characterization and measurement of Rockwell C scale hardness before and after heat treatment . Atom Force Microscope and X Ray characterization were carried out on the multi walled carbon nano tube reinforcements as well as the nano carbon cast iron formed by adding the nano carbon with the grey cast iron. As the nano carbon reinforcements tend to agglomerate in the cast iron

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... ctic melt , prior sonication and coating with copper were done to prevent agglomeration, dissolution and oxidation of nano carbon . Soft and ductile αferrite phase was seen to form as a result of the stress relieving heat treatment thereby explaining the lower hardness values obtained compared to the as cast nano cast iron .