Structural Hardening in Al-Cu System

This lecture covers the concept of structural hardening in the Al-Cu system, focusing on the formation of different types of precipitates, their growth kinetics, and the impact on the material's properties. It explains the process of solution treatment and aging, highlighting the importance of controlling temperature and time for optimal hardening. The lecture also discusses the obstacles precipitates pose to dislocation movement and the role of constraints in bypassing them. Additionally, it explores the Orowan model and the influence of precipitate size and distribution on the material's mechanical behavior.