Sub-rapid Solidification and Its Related Interfacial Heat-Transfer Behaviors in Strip Casting Process

Sub-rapid solidification and its related interfacial heat-transfer behaviors of molten steel during the process of strip casting are very important, as the total solidification time is less than 0.2 s, and the heat transfer would directly determine the surface defects and the final quality of cast strips during initial solidification of molten steel. In this article, four main topics, including the main research techniques for the study of strip casting technology, the effect of deposited films on heat transfer, the effect of coating on heat transfer, and the steel’s sub-rapid solidification microstructure are reviewed with the purpose to explore the intrinsic mechanism of the complex sub-rapid solidification process and its related interfacial heat-transfer behaviors. The results summarized here can provide guidelines for the optimization of the strip casting process.