Hot deformation is a research area within materials science and engineering that focuses on the study of material behavior under high temperature conditions. It involves the process of deforming materials at elevated temperatures to study their mechanical properties and behaviors. This research area aims to understand how materials respond to high temperature deformation, how their microstructure changes, and how to optimize processing conditions to improve the mechanical properties of materials. Hot deformation research is important in various industries such as metal forming, aerospace, automotive, and manufacturing, where materials are subjected to high temperatures during processing.