The research on the measurement method for nodularization rate of ductile cast automotive parts

In the past,the measurement of modularization rate of the ductile iron automotive parts was done through microscopic method in the past.However,because this method required too long measuring period and so many factitious reasons,the results are different when measured by different pessons.This paper introduces another method for measuring the ductile cast iron's nodularization rate,which is certificated by practice and can be implemented in the real fabrication.