Influence of hot plastic deformation on morphology of graphite and metallic matrix of high-duty cast iron

Abstract

The results of studies showing the effects of hot plastic deformation on the processes of forming graphite inclusions and hardening of metal matrix are presented. Found that with increasing degree of hot plastic deformation, not only the shape of graphite inclusions changes, but their redistribution in the plane of the section changes also, which affects the anisotropy properties of nodular iron. Based on these results a conclusion is made that with the help of hot plastic deformation it is possible to obtain the specified strength characteristics of ductile iron.