Prof.S.C.Borse, Y.E.Mangulkar
In advanced countries, researches related to the machinability & microstructures of gray cast iron were carried out early, especially on the effect of inoculants. Also there has been an increasing need and demand for the processes to obtain carbide free, thin section grey iron castings. Inoculation is a well established process which not only prevents carbide formation, but also controls the size and form of graphite flake in the grey cast iron. This paper reviews some of the developments that have taken place in the inoculants and inoculating procedure grey cast iron. Also some of the more recent inoculants which have been used by various researchers with various degree successes have been briefly explained.