Problems of using computer control of vermicular graphite in the microstructure of cast iron
In recent decades, there has been an increase in industrial interest in compacted graphite iron, which has a very wide range of properties more depended on the graphite form. The same time, to date, there are no methods for controlling graphite in the microstructure of CGI necessary truth. In the present work, the automatic calculation error of the fraction of vermicular graphite is estimated, which is associated with the automatic identification error of the type of graphite inclusion. It is shown that automatic calculation without the metallographist increases accuracy in comparison with GOST 3443-87, but its error remains not acceptably high for materials science tasks and requires further improvement.
vermicular graphite, microstructure control, automatic image analyzer, control error