Lecture
This lecture covers the mechanisms of metal plasticity, focusing on how to increase material resistance by blocking or slowing down dislocation movement through obstacles. It explains the hardening of metals by solid solution and precipitation, as well as the role of dislocation forests and grain boundaries. The lecture also delves into the plasticity of polymers, highlighting their behavior in relation to temperature and deformation speed. Various examples of materials and their mechanical properties are discussed, such as ceramics, concrete, and alloys. The presentation concludes with a detailed analysis of the origins and reinforcement mechanisms in different materials during deformation.