The effect of alloy properties on the he

The study investigates the influence of alloy properties on the heat flow at the interface between casting and mold, a critical aspect for optimizing casting designs. The primary objective is to elucidate how the heat transfer coefficient, denoted as 'h', is affected by various alloy properties, including surface tension and advancing contact angle, under different interfacial conditions. The methodology employed involved experimental analysis of two binary alloys, Al-12% Si (LM 6) and Al-2.7% Li, melted in a controlled environment and analyzed for their heat transfer characteristics. Results reveal that the thermal behavior at the casting/mold interface is significantly influenced by the type of alloy used. Particularly, ductile iron exhibits improved contact characteristics due to its expansion from graphitization, leading to an increase in the heat transfer coefficient over time. Additionally, the study highlights that surface oxidation characteristics and the unique alloy properties, such as surface tension and contact angle, play a crucial role in affecting the value of 'h'. This work contributes valuable insights into casting technologies, emphasizing the importance of alloy selection for enhanced heat transfer efficiency.