MECHANISM OF INOCULATION OF CAST IRON
铸铁孕育机制

The "carbon peaks" and high carbon activity spots appear in molten cast ironduring inoculation by Si. No evidence shows that the number of Si-rich particles whichmight be the heterogeneous nuclei of graphite is increased by inoculation. It is suggested thatthe mechanism of inoculation is the undulation of C concentration and activity in an inocu-lated cast iron. The fading of inoculation is caused by the fading of undulation.