Lecture
This lecture covers the concepts of cracking and damage in forging processes, discussing topics such as porosity, stress concentration, ductile failure, fracture surfaces, and mechanical degradation. It explores the influence of stress on material behavior, the progression of cracks, and the role of stress concentrations in initiating damage. Additionally, it delves into the mechanisms of ductile damage, stress normalization, and the different stages of creep behavior. The lecture also examines dynamic recrystallization, deformation mechanisms, and the impact of grain boundaries on material properties.