<p>Bimetallic products from a liquid–solid metal alloy are challenging to cast because sufficient bonding between the two metals at the contact is difficult to obtain. By evaluating the quality of interfacial bonding using optical and scanning electron microscopy, researchers have conducted extensive research on this topic. The mechanical characteristics of bimetals, including microhardness, bonding strength, and shear strength, have also been the subject of several investigations. Based on the results of several tests, this study primarily examines bimetallic composites made from solid stainless-steel alloys and liquid grey cast iron. These advanced composite castings are primarily concerned with the quality of the connection at the joint contact. Microstructural characterisation of the interfacial region has focused on the formation of intermetallic phases and associated phase transitions near the contact.</p>