Lecture
This lecture covers the construction of phase diagrams, focusing on the solid-liquid equilibrium. The instructor explains the Gibbs phase rules and the number of degrees of freedom in a system. The lecture discusses the energy of a constituent in a phase, constraints in binary systems, and the eutectic and peritectic reactions. It also delves into the identification of phases in equilibrium and the rule of levers. The importance of phase diagrams in materials science, particularly in alloys like Cu-Ni and Al-Si, is highlighted. The lecture concludes with a detailed explanation of single-phase, two-phase, and invariant zones in phase diagrams.