EVALUATING VIBROABSORPTION PROPERTIES OF CAST-IRON BY A COMPOSITE PARAMETER

Gray cast irons occupy a special place among structural materials with a well-defined heterogeneous structure that possess a high damping ca pacity. Gray cast irons are used for the production of a wide range of parts that experience static and cyclic sign-variable loads. They are used as structural materials with a high damping capacity due to thei r high adaptability to manufacture and the possibility of quite wide c ontrol over their properties by introducing various modifiers into the melt. The present work is devoted to evaluation of the quality of gra y cast irons with various shapes, amounts, and distributions of graphi te inclusions and various structures of the metallic base using the Su gimoto composite parameter and specific characteristics of strength an d rigidity.